Q Morningside IP
`
`The Leader in Global IP Solutions
`
`Oate; October 10, 2017
`
`1 o WIIOM 11 May concern:
`
`I, Qiang Li, a translator fluent in the Chinese and English languages, on behalf of
`Morningside Translations, do solemnly and sincerely declare under the penalty of
`perjury under the laws of the United States that the foregoing is true and correct; and
`furlhP.r QP.~l~ri~ ~hat I am aware that willful false statements and the like so made are
`punishable by fine or imprisonment, or both, under Section 1001 ofTitle 18 of the
`United States Code.
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`The documents are designated as:
`•
`Laser light scanning head and la,er >how t.levke, Pdle11l Nu.; CN 201173996V
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`c:::;s., ........ ___ _
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`Signature
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`QIANG LI
`Print
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`NEW YORK
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`lf'lfo@mof niogsideip.com I www.morningsidelP.com
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`Wisely Exhibit 1025
`Page 1 of 19
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`[19] The State Intellectual Property Office (SIPO) of the People’s Republic of China
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`[51] Int. Cl.
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`G02B 26/10 (2006.01)
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`G02B 27/24 (2006.01)
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`G09F 19/12 (2006.01)
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`[12] Description of Utility Model Patent
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`Patent No. ZL 200820092734.7
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`[45] Patent Date: December 31, 2008
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`[11] Patent No.: CN 201173996Y
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`[22] Filed on:
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`March 21, 2008
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`[21] Appl. No.:
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`200820092734. 7
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`[73] Patent Holder: Shenzhen LAYU Laser Technology Co., Ltd.
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` Address:
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`3-2 Bengshan Industrial Zone, Xixiang Town, Bao An District, Shenzhen,
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`Guangdong Province 518000
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`[72] Inventor(s): Daiheng Huang, Hanjun Wan
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`[74] Patent firm or Agency: Shenzhen Chuangyou Patent and Trademark Agency Co., Ltd.
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`Claims: 2 pages, Description 6 pages, Drawings 3 pages
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`[54] Title of Utility Model
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`Laser light scanning head and laser show device
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`[57] Abstract of Disclosures
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`The present utility model discloses a laser light scanning head, which comprises an X-Y
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`scanning module and a grating rotation scanning module, wherein the grating rotation scanning
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`module comprises a first grating and a first driving device, a driving power output end of the first
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`driving device is coupled to the first grating so as to drive the first grating to rotate, the X-Y
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`scanning module is arranged at an incident laser receiving position, the first grating is arranged
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`in a light output region of the X-Y scanning module, and the laser light scanning head further
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`Wisely Exhibit 1025
`Page 2 of 19
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`comprises a second grating which is arranged between the X-Y scanning module and the first
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`grating or is arranged in a light output region of the first grating. The present utility model also
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`discloses a laser show device, and the laser light scanning head of the laser show device
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`comprises the X-Y scanning module, the grating rotation scanning module, and the second
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`grating which is arranged between the X-Y scanning module and the first grating, or is arranged
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`in the light output region of the first grating. Due to the second grating provided in the present
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`utility model, the laser can show a firefly pattern with integral movement through the diffraction
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`of the two gratings, which thus provides better pattern shows than the prior art.
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`Page 3 of 19
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`200820092734. 7
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`Claims
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`Page 1 of 2
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`What is claimed is:
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`1. A laser light scanning head, comprising an X-Y scanning module and a grating rotation
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`scanning module, wherein the grating rotation scanning module comprises a first grating
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`and a first driving device, a driving power output end of the first driving device is
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`coupled to the first grating so as to drive the first grating to rotate, the X-Y scanning
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`module is arranged at an incident laser receiving position, the first grating is arranged in a
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`light output region of the X-Y scanning module, characterized in that the laser light
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`scanning head further comprises a second grating which is arranged between the X-Y
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`scanning module and the first grating.
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`2. The laser light scanning head according to claim 1, characterized in that the laser light
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`scanning head further comprises a second driving device, a driving power output end of
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`the second driving device is coupled to the second grating so as to control the second
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`grating to enter or exit a position of action.
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`3. The laser light scanning head according to claim 2, characterized in that the laser light
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`scanning head further comprises a connecting rod, the second driving device is a grating
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`motor, a shaft end of the grating motor is connected to a portion of the connecting rod,
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`another portion of the connection rod is connected to the second grating, and the grating
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`motor drives the second grating via the connection rod to move in a plane perpendicular
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`to a light beam traveling direction.
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`4. A laser light scanning head, comprising an X-Y scanning module and a grating rotation
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`scanning module, wherein the grating rotation scanning module comprises a first grating
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`and a first driving device, a driving power output end of the first driving device is
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`coupled to the first grating so as to drive the first grating to rotate, the X-Y scanning
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`module is arranged at an incident laser receiving position, the first grating is arranged in a
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`light output region of the X-Y scanning module, characterized in that the laser light
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`3
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`Page 4 of 19
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`scanning head further comprises a second grating which is arranged in a light output
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`region of the first grating.
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`5. The laser light scanning head according to claim 4, characterized in that the laser light
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`scanning head further comprises a second driving device, a driving power output end of
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`the second driving device is coupled to the second grating so as to control the second
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`grating to enter or exit a position of action.
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`6. The laser light scanning head according to claim 5, characterized in that the laser light
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`scanning head further comprises a connecting rod, the second driving device is a grating
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`motor, a shaft end of the grating motor is connected to a portion of the connecting rod,
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`another portion of the connection rod is connected to the second grating, and the grating
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`motor drives the second grating via the connection rod to move in a plane perpendicular
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`to a light beam traveling direction.
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`7. A laser show device, comprising a laser light scanning head, wherein the laser light
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`scanning head comprises an X-Y scanning module and a grating rotation scanning
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`module, wherein the grating rotation scanning module comprises a first grating and a first
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`driving device, a driving power output end of the first driving device is coupled to the
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`first grating so as to drive the first grating to rotate, the X-Y scanning module is arranged
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`at an incident laser receiving position, the first grating is arranged in a light output region
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`of the X-Y scanning module, characterized in that the laser light scanning head further
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`comprises a second grating which is arranged between the X-Y scanning module and the
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`first grating.
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`8. The laser show device according to claim 7, characterized in that the laser light scanning
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`head further comprises a second driving device, a driving power output end of the second
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`driving device is coupled to the second grating so as to control the second grating to enter
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`or exit a position of action.
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`Page 5 of 19
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`9. A laser show device, comprising a laser light scanning head, wherein the laser light
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`scanning head comprises an X-Y scanning module and a grating rotation scanning
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`module, wherein the grating rotation scanning module comprises a first grating and a first
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`driving device, a driving power output end of the first driving device is coupled to the
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`first grating so as to drive the first grating to rotate, the X-Y scanning module is arranged
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`at an incident laser receiving position, the first grating is arranged in a light output region
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`of the X-Y scanning module, characterized in that the laser light scanning head further
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`comprises a second grating which is arranged in a light output region of the first grating.
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`10. The laser show device according to claim 9, characterized in that the laser light scanning
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`head further comprises a second driving device, a driving power output end of the second
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`driving device is coupled to the second grating so as to control the second grating to enter
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`or exit a position of action.
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`Wisely Exhibit 1025
`Page 6 of 19
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`200820092734. 7
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`Description
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`Page 1 of 6
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`[Technical Field]
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`Laser light scanning head and laser show device
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`The present utility model relates to the laser display control technology, and more
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`particularly to a laser light scanning head and a laser show device.
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`[Background Art]
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`The existing laser show system (also referred to as laser light) can be roughly divided
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`into two groups according to the way in which the scanning head is controlled: the vibrating
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`mirror type of laser light and stepper motor type laser light. The motor of the vibrating mirror
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`scanning head employs analog signals to control the rotation of the scanning lens. Its drive
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`control circuit is complicated, and the cost is high, but it can have high speed and high accuracy.
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`Accordingly, it is able to image complex patterns, and thus is typically used in the middle and
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`high end field. In contrast, the motor of the stepper motor type scanning head is controlled by
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`digital pulse signals. As a result, its drive control circuit is relatively simple, and the cost is low.
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`However, it has low speed. It is able to achieve simple geometric pattern imaging, and is
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`typically used in the low end field. On the other hand, based on the structure of the scanning
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`head, the foregoing two types of laser show systems each has the following different models:
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` 1. X-Y scanning head
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`As shown in Figure 1, the scanning head is composed of a pair of X-Y scanning heads
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`(also referred to as modules), each comprises an X-axis motor 102, a Y-axis motor 202, an X-
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`axis reflection lens 101, a Y-axis reflection lens 201, and the like. The X-axis motor 102 drives
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`the X-axis reflection lens 101 to rotate, and the Y-axis motor 202 drives the Y-axis reflection
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`lens 201 to rotate. The laser light is projected through the light entering hole 7 to the X-axis
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`reflection lens 101 (this lens controls the X-axis direction parameters of a pattern), and then is
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`further reflected to the Y-axis reflecting lens 201 (this lens controls the Y-axis direction
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`parameters of a pattern), and finally is projected by the Y-axis reflecting lens 201 to show a two-
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`dimensional pattern on a plane and show the effect of a three-dimensional beam effect in space.
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`Page 7 of 19
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`2. One grating rotary scanning head
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`Due to the diffraction special imaging function of grating, the grating has been widely
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`used in the field of laser stage show. Grating is made by way of cutting a plurality of stripes on
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`glass and other type of media. The spaces between these stripes are very narrow. The stripes are
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`arranged following certain rules. The grating used in the field of laser display is usually designed
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`as 10 to 1000 stripes for 1 mm pitch. When a laser beam is projected on a transmission grating, a
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`number of laser beams will be transmitted from the grating; alternatively, when a laser beam is
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`projected on a reflection grating, a number of laser beams will be reflected from the grating.
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`Each of the foregoing gratings is able to generate a number of laser spots on a plane, and the
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`laser spots can be arranged in a certain pattern. In such a case, if the grating is making a
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`mechanical rotation, these laser spots will make a corresponding movement as well. In addition,
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`various laser spot distributions can be obtained by way of employing the gratings with different
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`specifications. On the other hand, a combination of different or the same gratings may also be
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`utilized, in which a laser light is first projected to a first grating, and the plurality of laser light
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`beams from the first grating will be projected to the next grating, and so on. In this way, a more
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`complex laser light distribution can be achieved. At the same time, the rotation of the grating
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`may also be regulated so as to generate a dynamic effect of the combination of various laser spot
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`distribution patterns.
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`The easiest grating laser light uses one grating rotary scanning head. Its structure is
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`shown in Figure 2. The grating 301 is mounted on a bearing 303, the bearing 303 is driven by a
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`motor, such that the grating 301 is driven to rotate; accordingly, the laser spots generated by the
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`diffraction of the grating 301 also rotate correspondingly so as to achieve a dynamic rotation
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`effect with the center spot thereof as the center of rotation. Through grating diffraction, the
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`generated laser beams can be projected onto a plane to create the effect of a number of laser
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`spots, resembling the stars in the sky. Accordingly, the laser light with such effect is also referred
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`to as the laser light of “starry sky”. However, it is noted that the “starry sky” laser light only has
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`a single effect of laser show, whose application field is very limited.
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`3. Dual grating rotary scanning head
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`Wisely Exhibit 1025
`Page 8 of 19
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`To achieve a better effect of the laser beams, two pieces of gratings may be used. As
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`shown in Figure 3, a laser light scanning head comprises two grating means, in which a grating
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`301 is mounted on a bearing 303 and is driven by the bearing 303; the other grating 401 is
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`typically fixed without rotation. In this case, when a laser beam is projected onto the first piece
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`of grating 301, through the diffraction of the first grating 301, a number of laser spots will be
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`generated, and these laser spots are further projected onto the second piece of grating 401.
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`Accordingly, each of the generated laser spot will further lead to a number of new laser spots. As
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`a result, much more laser spots are generated via the second grating 401. The number and
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`distribution of the laser spots are mainly determined by the parameters and relative positions of
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`the two gratings. For a scanning head having two gratings, by way of controlling the rotation of
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`the gratings, a number of laser spots moving following certain rules can be created. These laser
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`spots can be concentrated in a small area, or dispersed in a very large area, so as to assemble the
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`effect of fireworks or the effect of a flying firefly. Accordingly, the laser light with such effect is
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`referred to as a laser light of “firefly”. However, the laser spots of the firefly laser light moves
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`about a central point, rather than move as a whole. This type of laser light does not have
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`sufficient scanning angle, and only has a single effect of laser light.
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`4. An X-Y scanning head + a grating rotary scanning head
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`A combination of an X-Y scanning head and a one grating rotary scanning head can be
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`utilized to design a composite scanning head with the structure shown in Figure 4. A grating 501
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`with large area is provided in the light output region of the X-Y scanning head. In this case, a
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`laser light projected from the Y lens 201 is entirely projected onto the grating 501, the grating
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`501 is mounted on a bearing 504, and the bearing 504 is driven by a bearing motor 502 via a
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`conveyor belt 503, so as to achieve grating rotary rotation scanning. This type of laser light can
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`achieve two different effects: 1, an effect of starry sky and the rotation effect thereof. 2, controls
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`on the X and Y moving directions, which allows it to achieve a large angle scanning, thereby
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`achieving an overall moving effect of the starry sky. Accordingly, this type of laser light is
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`referred to as the laser light of “moving starry sky”. However, this type of scanning head can
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`only show the pattern of starry sky, which is very limited.
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`[Summary of Invention]
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`8
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`Wisely Exhibit 1025
`Page 9 of 19
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`The main object of the utility model is to overcome the deficiencies of the existing
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`technologies in the art, and to provide a laser light scanning head that is able to offer more laser
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`light effect patterns, as well as a laser show device employing the laser light scanning head.
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`In order to achieve the above object, the present utility model provides a laser light
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`scanning head, which comprises an X-Y scanning module and a grating rotation scanning
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`module, wherein the grating rotation scanning module comprises a first grating and a first
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`driving device, a driving power output end of the first driving device is coupled to the first
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`grating so as to drive the first grating to rotate, the X-Y scanning module is arranged at an
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`incident laser receiving position, the first grating is arranged in a light output region of the X-Y
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`scanning module, characterized in that the laser light scanning head further comprises a second
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`grating which is arranged between the X-Y scanning module and the first grating.
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`The laser light scanning head further comprises a second driving device, a driving power
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`output end of the second driving device is coupled to the second grating so as to control the
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`second grating to enter or exit a position of action.
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`The laser light scanning head further comprises a connecting rod, the second driving
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`device is a grating motor, a shaft end of the grating motor is connected to a portion of the
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`connecting rod, another portion of the connection rod is connected to the second grating, and the
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`grating motor drives the second grating via the connection rod to move in a plane perpendicular
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`to a light beam traveling direction.
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`In order to achieve the above object, the present utility model also provides a laser light
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`scanning head, which comprises an X-Y scanning module and a grating rotation scanning
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`module, wherein the grating rotation scanning module comprises a first grating and a first
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`driving device, a driving power output end of the first driving device is coupled to the first
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`grating so as to drive the first grating to rotate, the X-Y scanning module is arranged at an
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`incident laser receiving position, the first grating is arranged in a light output region of the X-Y
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`scanning module, characterized in that the laser light scanning head further comprises a second
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`grating which is arranged in a light output region of the first grating.
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`Wisely Exhibit 1025
`Page 10 of 19
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`The laser light scanning head further comprises a second driving device, a driving power
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`output end of the second driving device is coupled to the second grating so as to control the
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`second grating to enter or exit a position of action.
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`The laser light scanning head further comprises a connecting rod, the second driving
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`device is a grating motor, a shaft end of the grating motor is connected to a portion of the
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`connecting rod, another portion of the connection rod is connected to the second grating, and the
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`grating motor drives the second grating via the connection rod to move in a plane perpendicular
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`to a light beam traveling direction.
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`In order to achieve the above object, the present utility model further provides a laser
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`show device, which comprises a laser light scanning head, wherein the laser light scanning head
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`comprises an X-Y scanning module and a grating rotation scanning module, wherein the grating
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`rotation scanning module comprises a first grating and a first driving device, a driving power
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`output end of the first driving device is coupled to the first grating so as to drive the first grating
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`to rotate, the X-Y scanning module is arranged at an incident laser receiving position, the first
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`grating is arranged in a light output region of the X-Y scanning module, characterized in that the
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`laser light scanning head further comprises a second grating which is arranged between the X-Y
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`scanning module and the first grating.
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`The laser light scanning head further comprises a second driving device, a driving power
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`output end of the second driving device is coupled to the second grating so as to control the
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`second grating to enter or exit a position of action.
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`In order to achieve the above object, the present utility model also provides a laser show
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`device, which comprises a laser light scanning head, wherein the laser light scanning head
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`comprises an X-Y scanning module and a grating rotation scanning module, wherein the grating
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`rotation scanning module comprises a first grating and a first driving device, a driving power
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`output end of the first driving device is coupled to the first grating so as to drive the first grating
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`to rotate, the X-Y scanning module is arranged at an incident laser receiving position, the first
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`Wisely Exhibit 1025
`Page 11 of 19
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`grating is arranged in a light output region of the X-Y scanning module, characterized in that the
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`laser light scanning head further comprises a second grating which is arranged in a light output
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`region of the first grating.
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`The laser light scanning head further comprises a second driving device, a driving power
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`output end of the second driving device is coupled to the second grating so as to control the
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`second grating to enter or exit a position of action.
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`The present utility model has the following advantageous effects:
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`In the present utility model, a second grating is provided between the X-Y scanning
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`module and the first grating, alternatively the second grating is provided in the light output area
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`of the first grating. The first grating and the second grating cooperate to treat the outgoing light
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`beam from the X-Y scanning module. After a light beam is projected from the X-Y scanning
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`module, it is first projected onto the second grating, and a plurality of laser beams generated
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`through the diffraction thereof are further projected onto the first grating; alternatively, the light
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`beam is first projected onto the first grating, and then projected onto the second grating. In this
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`way, the light beam is first treated by the X-Y scanning module, and the further treated through
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`the diffraction of the two gratings, such that a great number of laser spots in regular movement
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`are created. In addition, the number and distribution of the laser spot are determined by the
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`parameters and relative positions of the two gratings. The scanning of the X-Y scanning module
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`can also be controlled in order to control the parameters such as the angle and position of the
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`projected pattern, as well as the overall movement of the pattern, so as to eventually form a
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`firefly pattern that can rotate around the center and meanwhile move as a whole. The effect of
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`the laser light pattern produced by the device of the present utility model is more colorful and
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`diversified than the starry sky pattern produced by the devices currently available in the art.
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`In an improved design of the present utility model, a second driving device coupled to the
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`second grating is further provided, the second driving device is able to control the second grating
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`to enter or exit a position of action. In this way, the present utility model can optionally set the
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`second grating to be effective or ineffective. In the case when the second grating is needed, the
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`second grating can be adjusted to the position of action by virtue of the second driving device; in
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`Page 12 of 19
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`this case, the X-Y scanning module and the two grating cooperate to produce the effect of a
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`moving starry sky. In this way, the present utility model has further achieved the effect of a
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`variety of patterns moving as a whole. Thus, its function is more powerful.
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`[Brief Description of Drawings]
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`Figure 1 is a schematic view of the structure of an existing X-Y scanning head.
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`Figure 2 is a schematic view of the structure of a single grating rotary scanning head.
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`Figure 3 is a schematic view of the structure of a dual grating rotary scanning head.
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`Figure 4 is a schematic view of the structure of an existing X-Y scanning head plus a
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`single grating rotary scanning head.
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`Figure 5 is a schematic view of the structure of the scanning head according to one
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`embodiment of the present utility model 9 (the second grating is located at the action position).
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`Figure 6 is a schematic view of another working state of the scanning head shown in
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`Figure 5 (the second grating exits the action position).
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`[Description of Embodiment]
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`The features and advantages of the present utility model will be further described in detail
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`with reference to the accompanying drawings.
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`In reference to Figure 5, the laser light scanning head includes an X-Y scanning module,
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`a grating scanning module, and a frame 8. The X-Y scanning module and the grating scanning
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`module are mounted on the frame 8, and the surface of the frame 8 is further provided with a
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`light entering hole 7. The X-Y scanning module includes an X-axis reflecting lens 101, an X-axis
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`motor 102, a Y-axis reflecting lens 201, and a Y-axis motor 202. In addition, the X-axis
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`reflecting lens 101 is arranged on the light incident path, and the Y-axis reflecting lens 201 is
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`arranged in a suitable position at a suitable angle in order to corporate with the X-axis reflecting
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`lens 101. The X-axis motor 102 is coupled to the X-axis reflecting lens 101 to drive the X-axis
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`reflecting lens 101 to rotate, and the Y-axis motor 202 is coupled to the Y-axis reflecting lens
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`201 to drive the Y-axis reflecting lens 201 to rotate. A laser beam is projected onto the X-axis
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`reflecting lens 101 via the light entering hole 7 of the laser light scanning head, and then
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`reflected to the Y-axis reflecting lens 201, and finally is projected to the X-Y scanning module
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`via the reflection of the Y-axis reflecting lens 201. The X-axis reflection lens 101 and the Y-axis
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`reflection lens 201 respectively control the X-axis direction and Y-axis direction parameters of
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`the pattern. At a result, the projected light is able to form a two-dimensional pattern on a plane,
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`and show a three-dimensional laser beam effect in space.
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`The grating scanning module includes a first grating 501, a first driving device 502, and a
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`second grating 601. The first grating 501 is arranged in the light output area of the X-Y scanning
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`module (that is, the receiving area for the light beam projected from the X-Y scanning module).
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`The first grating 501 is in a tabular shape and has a large area. The first drive device 502 is
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`provided with a bearing motor 502, the first grating 501 is mounted on the bearing 504, and the
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`bearing motor 502 drives the bearing 504 to rotate via a transmission 503 (e.g., a conveyor belt).
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`The bearing 504 drives the first grating 501 to rotate, so as to achieve grating rotatory scanning.
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`The second grating 601 is fixedly mounted between the X-Y scanning module and the first
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`grating 501, and is arranged at an angle that is perpendicular to the direction of light beam. It is
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`located at the action position facing the laser light output of the X-Y scanning module. The laser
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`light projected from the Y-axis lens 201 is first projected on the second grating 601, and a
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`plurality of laser beams formed through the diffraction of the second grating 601 are further
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`projected on the first grating 501, and much more laser beams are generated through the
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`diffraction of the first grating 501. In addition, due to the rotation of the first grating 501, these
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`laser beams also achieve the rotational movement function.
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`The laser light scanning head of the foregoing embodiment is capable of producing the
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`effect of a firefly pattern that can move integrally.
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`In reference to Figures 5 and 6, as a modification to the above-described embodiment, a
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`second driving device 602 is further provided. The power output terminal of the second driving
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`means 602 is coupled to the second grating 601, such that the second grating 601 can be
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`controlled to enter or exit the action position for the laser light beam. Specifically, the second
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`driving device 602 is a grating motor 602, and the shaft end of the grating motor 602 is
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`connected to the second grating 601 through a connecting rod 603. With the drive of the
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`connecting rod 603, the second grating 601 can move on a plane perpendicular to the direction of
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`the light beam under the driving effect of the grating motor 602, such that the second grating 601
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`can be controlled to enter or exit the action position. As a result, the second grating 601 can be
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`optionally set as effective or ineffective. In this way, when the second grating 601 is needed, the
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`second grating 601 can be adjusted to the action position by the grating motor 602, such that the
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`laser light scanning head is composed of an X-Y scanning module and two gratings, which
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`cooperate to produce an integral movement of the firefly pattern. On the other hand, when the
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`second grating 601 is not needed, the second grating 601 will be adjusted to exit the action
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`position, such that the laser light scanning head is composed of an X-Y scanning module and the
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`first grating 501, which cooperate to produce an integral movement of the starry sky pattern.
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`As another alternative embodiment of the present utility model, the second grating 601
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`may also be provided in the light output area of the first grating 501, that is, the laser beam
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`projected by the X-Y scanning module is first diffracted by the first grating 501 and projected
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`onto the second grating 601, and finally diffracted by the second grating 601. Similarly, the laser
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`generated through the combined actions of the X-Y scan module and two gratings can produce
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`an integrally moving firefly pattern. Similar to the improvement for the first embodiment, a
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`grating motor 602 and the corresponding connection and transmission mechanism may be
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`provided so as to control the second grating 601 to enter or exit the action position by the grating
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`motor 602. In this way, the laser light scanning head of the present utility model can be easily
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`switched between the firefly pattern and the starry sky pattern.
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`By way of providing a second grating, the present utility model makes the light beam
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`from the X-Y scanning module is further diffracted through a combination of a first rotary
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`grating and a second grating. As a result, the present utility model can generate a number of laser
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`spots that resembling fireflies in certain regular movement, and form the firefly pattern which
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`can rotate around a center and meanwhile make an integral movement. When compared with the
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`single starry start pattern generated by an existing device, the patterns generated by the present
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`utility model are more diversified. Moreover, a driving device for the second grating may be
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`further provided, which is able to control the position of the second grating, which allows the
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`device to generate not only the starry sky pattern, but also a firefly pattern that can move
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`integrally.
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`The description provided above is a further detailed description of the present utility
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`model in reference with some specific preferred embodiments. However, it should not be
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`considered that the embodiments of the present utility model are limited to these described
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`embodiments. It will be apparent to those skilled in the art to which the present invention
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`pertains that a number of simple deductions or replacements can be made for the present utility
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`model without departing from the concept