CN113075775A

CN113075775A - Mounting structure for optical component and optical component

Info

Publication number: CN113075775A
Application number: CN202010010036.3A
Authority: CN
Inventors: 张括; 周正平; 周建华; 胡飞
Original assignee: Appotronics Corp Ltd
Current assignee: Shenzhen Appotronics Corp Ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2021-07-06
Also published as: WO2021139500A1

Abstract

The invention provides a mounting structure for an optical assembly, which comprises a bracket, wherein a first element mounting position and a second element mounting position are oppositely arranged on the bracket; the first element mounting position is provided with a first positioning mechanism for positioning the first fly-eye lens, and the second element mounting position is provided with a second positioning mechanism for positioning the second fly-eye lens; the first positioning mechanism comprises a first X-direction positioning boss and a first Y-direction positioning boss, and the second positioning mechanism comprises a second X-direction positioning boss and a second Y-direction positioning boss; the first X-direction positioning boss and the second X-direction positioning boss are same in position corresponding size, and the first Y-direction positioning boss and the second Y-direction positioning boss are same in position corresponding size. The invention also provides an optical assembly.

Description

Mounting structure for optical component and optical component

Technical Field

The invention relates to the technical field of optics, in particular to an optical assembly and a mounting structure for the same.

Background

In a projection apparatus, when a double compound eye with a light uniformizing function, a Polarization Conversion System (PCS) with a polarization conversion function, and a barrier with a function of blocking stray light are used in combination, the arrangement is often tight, and the requirement for positioning accuracy is very high. In particular, the polarization conversion system is generally composed of a plurality of polarization splitting prisms bonded together. In the existing projection equipment, the positioning accuracy of optical elements such as compound eyes, a polarization conversion system and the like is not high, and the production requirement is difficult to meet.

Disclosure of Invention

The present invention is directed to a mounting structure for an optical module and an optical module to solve the above problems.

The embodiment of the invention achieves the aim through the following technical scheme.

In a first aspect, the present invention provides a mounting structure for an optical assembly, including a bracket having a first component mounting location and a second component mounting location disposed thereon; the first element mounting position is provided with a first positioning mechanism for positioning the first fly-eye lens, and the second element mounting position is provided with a second positioning mechanism for positioning the second fly-eye lens; the first positioning mechanism comprises a first X-direction positioning boss and a first Y-direction positioning boss, the second positioning mechanism comprises a second X-direction positioning boss and a second Y-direction positioning boss, the first X-direction positioning boss and the second X-direction boss protrude in the X direction, and the first Y-direction positioning boss and the second Y-direction boss protrude in the Y direction; the first X-direction positioning boss and the second X-direction positioning boss are the same in position correspondence size, and the first Y-direction positioning boss and the second Y-direction positioning boss are the same in position correspondence size.

In one embodiment, the first and second positioning mechanisms each comprise a cushion wrap disposed at a corner of the first or second fly-eye lens.

In one embodiment, the first element mounting position is further provided with a fence mounting table, the fence mounting table is provided with a first Z-direction supporting table and a fence positioning column which are arranged at intervals, the first Z-direction supporting table and the fence positioning column both extend from the fence mounting table in a protruding mode along the Z direction, and the first Z-direction supporting table is used for supporting and placing a fence and the fence positioning column is used for positioning the position of the fence.

In one embodiment, the first component mounting position is further provided with a PCS positioning mechanism, the PCS positioning mechanism comprises a Z-direction mounting boss, a Z-direction fixing part, an X-direction limiting part, an X-direction positioning part and a third Y-direction positioning boss, the Z-direction mounting boss is arranged on a Z-direction extension line of the first fly-eye lens, which is far away from the second fly-eye lens, at intervals of the first fly-eye lens, so as to form an air duct between the PCS and the first fly-eye lens, the Z-direction fixing part is arranged on the sideline of the bracket along the X direction, so as to fix the PCS in the Z direction, the X-direction limiting part and the first X-direction positioning boss are arranged at intervals in the X direction, the X-direction positioning part is arranged on a sideline of the bracket along the Y direction, the limiting part in the X direction is matched for limiting the PCS in the X direction, and the third Y-direction positioning boss and the first Y-direction positioning boss are arranged at intervals in the Y direction and used for limiting the PCS in the Y direction.

In one embodiment, the X-direction positioning portion includes a first fixing piece, the first fixing piece includes a fixing piece, and a first elastic piece and a second elastic piece connected to the fixing piece, the fixing piece is mounted on a side line of the support along the Y direction, the first elastic piece abuts against the first fly-eye lens along the reverse direction of the Z direction to fix the first fly-eye lens in the Z direction, and the second elastic piece abuts against the PCS along the reverse direction of the X direction to match the X-direction limiting portion to fix the PCS in the X direction.

In one embodiment, the Z-direction fixing portion includes a second fixing member, which is mounted on a side line of the bracket along the X-direction to fix the PCS along the Z-direction.

In a second aspect, the present invention further provides an optical assembly, including a first fly-eye lens, a second fly-eye lens, and the mounting structure for an optical assembly according to any of the above embodiments, wherein the first fly-eye lens is disposed at the first positioning mechanism, and the first X-direction positioning boss and the first Y-direction positioning boss cooperate to position the first fly-eye lens; the second fly-eye lens is arranged on the second positioning mechanism, and the second X-direction positioning boss and the second Y-direction positioning boss are matched to position the second fly-eye lens.

In one embodiment, the optical assembly further comprises a barrier, the barrier being located between the first fly-eye lens and the second fly-eye lens, a surface of the barrier facing away from the second fly-eye lens being provided with a boss to form a gap with the first fly-eye lens mounted on the barrier.

In one embodiment, the fence is made of an aluminum alloy material.

In one embodiment, the optical assembly further comprises a PCS located in the mounting structure on the PCS positioning mechanism and fixed by the first fixing piece along the X direction and the second fixing piece along the Z direction.

Compared with the prior art, the mounting structure and the optical assembly provided by the invention have the advantages that the corresponding sizes of the first X-direction positioning boss and the second X-direction positioning boss as well as the first Y-direction positioning boss and the second Y-direction positioning boss are the same, the processing error is small, and the positioning accuracy of the first fly-eye lens and the second fly-eye lens is improved.

These and other aspects of the invention are apparent from and will be elucidated with reference to the embodiments described hereinafter.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a stent provided in an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a mounting structure provided in an embodiment of the present invention from a viewing angle.

Fig. 3 is an enlarged view of fig. 1 at a.

Fig. 4 is an enlarged view of fig. 2 at B.

Fig. 5 is a schematic structural diagram of a first fixing element according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a mounting structure provided in an embodiment of the present invention from another perspective.

Fig. 7 is a schematic exploded view of an optical assembly provided by an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a barrier provided by an embodiment of the present invention at a viewing angle.

Fig. 9 is a schematic structural diagram of a barrier provided by an embodiment of the invention at another viewing angle.

Fig. 10 is a schematic structural view of a mounting structure (not including PCS) provided by an embodiment of the present invention from yet another perspective.

Fig. 11 is a schematic structural diagram of a mounting structure provided in an embodiment of the present invention from another perspective.

Fig. 12 is a cross-sectional view in the X-X direction of fig. 11.

Fig. 13 is an enlarged view of fig. 12 at C.

Fig. 14 is a cross-sectional view in the Y-Y direction of fig. 11.

Fig. 15 is an enlarged view of fig. 14 at D.

Detailed Description

In order to facilitate an understanding of the embodiments of the present invention, the embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the examples of the present invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 and 2, the present invention provides a mounting structure for an optical assembly, including a bracket 100, wherein a first component mounting location 110 and a second component mounting location 120 are oppositely disposed on the bracket 100; the first element mounting position 110 is provided with a first positioning mechanism 112 for positioning the first fly-eye lens, and the second element mounting position 120 is provided with a second positioning mechanism 121 for positioning the second fly-eye lens; the first positioning mechanism 112 comprises a first X-direction positioning boss 1121 and a first Y-direction positioning boss 1123, the second positioning mechanism 121 comprises a second X-direction positioning boss 1212 and a second Y-direction positioning boss 1214, the first X-direction positioning boss 1121 and the second X-direction boss are arranged on the Y-direction edge of the bracket and protrude in the X-direction, the first Y-direction positioning boss 1123 and the second Y-direction boss are arranged on the X-direction edge of the bracket and protrude in the Y-direction, and the XYZ coordinate system is as shown in fig. 1; the first X-direction positioning boss 1121 and the second X-direction positioning boss 1212, and the first Y-direction positioning boss 1123 and the second Y-direction positioning boss 1214 are identical in position and size, wherein the first X-direction positioning boss 1121 and the second X-direction positioning boss 1212 can be formed by one-time machining with the same tool at the same station, and the first Y-direction positioning boss 1123 and the second Y-direction positioning boss 1214 can be formed by one-time machining with the same tool at the same station.

In this embodiment, the number of the first X-direction positioning bosses 1121 and the second X-direction positioning bosses 1212 is two, and the two first X-direction positioning bosses 1121 are respectively disposed on two opposite edges of the bracket first positioning mechanism Y direction, and the two second X-direction positioning bosses 1212 are respectively disposed on two opposite edges of the bracket second positioning mechanism Y direction. The number of the first Y-direction positioning bosses 1123 and the second Y-direction positioning bosses 1214 is also two, and two first Y-direction positioning bosses 1123 are respectively arranged on two opposite edges of the bracket in the X direction of the first positioning mechanism, and two second Y-direction positioning bosses 1214 are respectively arranged on two opposite edges of the bracket in the X direction of the second positioning mechanism.

In other embodiments, the number of the first X-direction positioning bosses 1121, the second X-direction positioning bosses 1212, the first Y-direction positioning bosses 1123, and the second Y-direction positioning bosses 1214 is four, and two positioning bosses are disposed opposite to each other, that is, two positioning bosses are disposed on the X-direction edge and the Y-direction edge of the first positioning mechanism and the second positioning mechanism of the bracket, respectively.

Specifically, the bracket 100 is a substantially rectangular frame structure with a hollow center, and the bracket 100 can be used for positioning an optical element to form an assembly with certain functions. The holder 100 comprises an inner wall 101, an outer wall 102, a top wall 103 and a bottom wall 104, wherein the inner wall 101 and the outer wall 102 face away from each other. In this embodiment, the housing is provided with at least one opening penetrating through the inner wall 101 and the outer wall 102 to facilitate heat dissipation of the first fly-eye lens 20 or the PCS60, and the inner wall 101 and the outer wall 102 can also be used for mounting the bracket 100. The first X-direction positioning boss 1121 and the second X-direction boss protrude from the inner wall 101 in the X direction, and the first Y-direction positioning boss 1123 and the second Y-direction boss protrude from the inner wall 101 in the Y direction. The outer wall 102 of the bracket 100 is provided with a buckle 1021, the buckle 1021 can be a male buckle protruding from the outer wall 102 or a female buckle recessed from the outer wall 102, and the specific structure can be set according to actual conditions. The top wall 103 and the bottom wall 104 are opposite to each other, the inner wall 101 is connected between the top wall 103 and the bottom wall 104, and the inner wall 101 comprises four corners. In this embodiment, both the top wall 103 and the bottom wall 104 are opened to facilitate the mounting of the optical element to the bracket 100 from the top wall 103 and the bottom wall 104.

The bracket 100 also includes a mounting surface 105, the mounting surface 105 being located between the top wall 103 and the bottom wall 104. In this embodiment, the mounting surface 105 may be provided with a plurality of positioning posts to realize the positioning of the first fixing member 13, and the mounting surface 105 may be embedded into the first fixing member 13 by screws to realize the fixed mounting of the first fixing member 13.

Referring to fig. 1, 2 and 3, the first component mounting position 110 further includes a PCS positioning mechanism 116, and the PCS positioning mechanism 116 and the fence mounting platform 114 are spaced apart in the Z direction. The PCS positioning mechanism 116 includes an X-direction limiting portion 1162, an X-direction positioning portion, a third Y-direction positioning boss 1164, a Z-direction mounting boss 1166, and a Z-direction fixing portion. The Z-direction mounting boss 1166 is spaced apart from the first fly-eye lens and arranged on a Z-direction extension line of the first fly-eye lens away from the second fly-eye lens to form an air duct between the PCS and the first fly-eye lens, thereby facilitating heat dissipation of the PCS and the first fly-eye lens. Wherein the Z direction is perpendicular to the X and Y directions. The Z-direction fixing portion is provided on a borderline of the bracket 100 in the X-direction to fix the PCS in the Z-direction. The X-direction limiting portion 1162 and the first X-direction positioning boss 1121 are disposed at an interval in the X direction, and the X-direction positioning portion is disposed on a side line of the bracket 100 along the Y direction to cooperate with the X-direction limiting portion 1162 to limit the PCS in the X direction. The third Y-direction positioning bosses 1164 and the first Y-direction positioning bosses 1123 are arranged at intervals in the Y direction and are used for limiting the PCS in the Y direction, the number of the third Y-direction positioning bosses 1164 is four, and the four third Y-direction positioning bosses 1164 are located on two opposite sides of the bracket 100 respectively.

Referring to fig. 1, 2 and 4, the first component mounting site 110 is further provided with a fence mounting platform 114, and the fence mounting platform 114 protrudes from the inner wall 101 of the support 100. In this embodiment, fence mounting base 114 includes four portions joined end-to-end and forming four corners.

Fence mounting table 114 is provided with a first Z-direction support table 1141 and fence positioning posts 1143. First Z-direction support 1141 protrudes from fence mounting stage 114 in the Z-direction, the number of first Z-direction support 1141 may be plural, and first Z-direction support 1141 may be used to support placement fence 40. Fence positioning post 1143 protrudes from fence mounting platform 114 in the Z direction and is spaced apart from first Z-direction supporting platform 1141, and fence positioning post 1143 can be used to position fence 40. In this embodiment, two fence positioning columns 1143 are provided, and two fence positioning columns 1143 are located at two opposite corners of fence mounting table 114.

In one embodiment, the number of fence positioning posts 1143 may be one, three, four, or more. In another embodiment, two fence positioning posts 1143 can be located adjacent to each other.

Referring to fig. 2 and 5, the X-direction positioning portion includes a first fixing member 13, and the first fixing member 13 includes a fixing plate 132, and a first elastic sheet 134 and a second elastic sheet 136 connected to the fixing plate 132. The fixing piece 132 has a substantially rectangular plate structure, and the fixing piece 132 is attached to a side line of the bracket 100 in the Y direction, specifically, to the attachment surface 105. In the present embodiment, the fixing piece 132 is mounted by a screw passing through the fixing piece 132 to fix the fixing piece 132 to the mounting surface 105. In other embodiments, the securing tab 132 may be fixedly attached to the mounting surface 105 by adhesive, welding, attachment with fasteners 19 such as screws, or other means. The first elastic piece 134 abuts against the first fly-eye lens along the direction opposite to the Z direction to fix the first fly-eye lens in the Z direction. The second elastic pieces 136 are abutted against the PCS along the opposite direction of the X direction so as to be matched with the X-direction limiting parts to fix the PCS in the X direction, the number of the second elastic pieces 136 is two, and the two second elastic pieces 136 are used for positioning the PCS in the X direction. That is, the first fixing member 13 can simultaneously position the X direction of the PCS and the Z direction of the first fly-eye lens, and the use of the fixing member can be reduced, making the mounting structure 10 simpler.

Referring to fig. 2, the Z-direction fixing portion includes a second fixing member 15, and the second fixing member 15 is mounted on a side line of the bracket 100 along the X-direction to fix the PCS along the Z-direction. In this embodiment, the number of the second fixing members 15 is two, and the two second fixing members 15 are respectively located at two sides of the bracket 100 to fix the Z direction of the PCS. The second fixing member 15 is provided separately from the first fixing member 13, so that the first fixing member 13 and the second fixing member 15 are prevented from being interfered with each other. For example, when the presser foot of one of the fixing members is pressed, the presser foot of the other fixing member may be tilted, so that the pressing force is insufficient. The second fixing member 15 is mounted to the top wall 103. The second fixing member 15 is also substantially a rectangular sheet structure, and the second fixing member 15 may also include a plurality of elastic pieces bent along the Z direction.

Referring to fig. 2 and 6, the second positioning mechanism 121 is further provided with a third Z-direction supporting platform 1216, and the third Z-direction supporting platform 1216 is spaced apart from the second X-direction positioning boss 1212 and the second Y-direction positioning boss 1214.

The mounting structure 10 further includes a third fixing member 17, the third fixing member 17 is adjacent to the second positioning mechanism 121 and is mounted on the bracket 100, the third fixing member 17 includes a mounting piece 172, a third elastic piece 174 connected to the mounting piece 172, and a positioning piece 176 bent relative to the mounting piece 172, the positioning piece 176 is engaged with the buckle 1021, and the third elastic piece 174 is bent along the Z direction relative to the mounting piece 172 to provide a restoring force of the third elastic piece 174 in the Z direction.

The mounting structure 10 further includes a fourth fixing member 18, the fourth fixing member 18 and the second fixing member 15 have the same structure, the fourth fixing member 18 and the first fixing member 13 are respectively located at two opposite sides of the bracket 100, and the fourth fixing member 18 is mounted on a borderline of the bracket 100 along the Y direction and used for positioning the first fly-eye lens 20 along the Z direction.

In this embodiment, the number of the first fixing member 13, the third fixing member 17, and the fourth fixing member 18 is one, and the number of the second fixing member 15 may be two, where the positions of the two first fixing members 13 are opposite.

Mounting structure 10 also includes fasteners 19, and fasteners 19 may be used to mount bracket 100 to a housing of a projection device to secure bracket 100.

In summary, the first X-direction positioning boss 1121 and the second X-direction positioning boss 1212, and the first Y-direction positioning boss 1123 and the second Y-direction positioning boss 1214 of the mounting structure 10 for an optical assembly provided by the present invention have the same corresponding positions, and the machining error is small, so that the positioning accuracy of the first fly-eye lens 20 and the second fly-eye lens 30 is improved, as an example, the positioning accuracy can be improved from 0.05mm to 0.02 mm.

Referring to fig. 1 and 7, the present invention further provides an optical assembly 1, including a first fly-eye lens 20, a second fly-eye lens 30 and the mounting structure 10 for an optical assembly according to any of the above embodiments, wherein the first fly-eye lens 20 is disposed at the first positioning mechanism 112, and the first X-direction positioning boss 1121 and the first Y-direction positioning boss 1123 are matched to position the first fly-eye lens 20; the second fly-eye lens 30 is disposed on the second positioning mechanism 121, and the second X-direction positioning boss 1212 and the second Y-direction positioning boss 1214 cooperate to position the second fly-eye lens 30. The optical assembly 1 of the present embodiment can be used for conversion of polarized light, and can convert randomly polarized light into linearly polarized light. The optical assembly 1 may be used in a liquid crystal display projector.

Referring to fig. 4, 8 and 9, the optical assembly 1 further includes a barrier 40, and the barrier 40 is substantially a square plate-shaped structure. The fence 40 is made of an aluminum alloy material, and the specific material can be AL7075, so that the fence 40 is high in strength and not easy to deform. The barrier 40 is mounted on the barrier mount 114 and is positioned between the first fly-eye lens 20 and the second fly-eye lens 30. The barrier 40 may be used to split an incident beam into multiple beams that exit at different angles.

The fence 40 is provided with positioning holes 42, protrusions 44 and bosses 46. Fence positioning post 1143 is embedded in positioning hole 42 to position fence 40. Projection 44 is disposed on a surface of fence 40 close to fence mounting table 114 and abuts against first Z-direction supporting table 1141. In the present embodiment, the number of the protrusions 44 is four, wherein two protrusions 44 are distributed at two opposite ends of the fence 40, and the protrusion height of the protrusions 44 may be 0.2-0.4mm as an example. The shape of the projection 44 may be a generally rectangular parallelepiped structure. Boss 46 and projection 44 are disposed on opposite surfaces of fence 40. The boss 46 is disposed on a surface of the barrier 40 away from the second fly-eye lens 30, and the boss 46 abuts against the first fly-eye lens 20 to form a gap with the first fly-eye lens 20 mounted on the barrier 40, thereby facilitating heat dissipation of the barrier 40 and the first fly-eye lens 20. In the present embodiment, the number, shape and size of the bosses 46 are the same as the number, shape and size of the protrusions 44, and the positions of the bosses 46 correspond to the positions of the protrusions 44, so that the processing of the protrusions 44 and the bosses 46 is facilitated.

In other embodiments, the number of protrusions 44 may be different from the number of bosses 46, for example, the number of protrusions 44 may be four, and the number of bosses 46 may be two or three. The shape of the protrusion 44 may also be different from the shape of the boss 46, for example, the shape of the boss 46 may be a substantially cylindrical structure or a triangular prism structure. The size of the protrusion 44 may also be different from the size of the boss 46, and as an example, the height of the protrusion 44 may be 0.3mm and the height of the boss 46 may be 0.4 mm. The number and shape of the projections 44 and the bosses 46 may be set as appropriate.

Referring to fig. 7, 10 and 11, the first fly-eye lens 20 is also substantially a square plate-shaped structure, and the first fly-eye lens 20 can be used for dodging a plurality of light beams emitted from the barrier 40. The first elastic piece 134 presses against the first fly-eye lens 20 along the opposite direction of the Z direction to position the Z direction of the first fly-eye lens 20. Wherein the pressing means pressing the first fly-eye lens 20 to the fence 40 through the first elastic sheet 134, and the first elastic sheet 134 has a restoring force in the Z direction to position the first fly-eye lens 20 and the fence 40 in the Z direction

The first fly-eye lens 20 includes a first side surface 21, a second side surface 22, a third side surface 23, a fourth side surface 24, a first lens surface 25, and a second lens surface 26, the first side surface 21 and the third side surface 23 are opposite to each other, the second side surface 22 and the fourth side surface 24 are opposite to each other, the first side surface 21 abuts against the first Y-direction positioning boss 1123, and the second side surface 22 abuts against the first X-direction positioning boss 1121. The first lens surface 25 is opposite to the second lens surface 26, and the first lens surface 25 abuts against the boss 46. In this embodiment, the first lens surface 25 may be an incident surface of light, and the second lens surface 26 may be an exit surface of light.

The second fly-eye lens 30 abuts against the third Z-direction support base 1216. The third elastic piece 174 presses against the second fly-eye lens 30 along the Z direction to realize the positioning of the second fly-eye lens 30 in the Z direction.

The first positioning mechanism 112 and the second positioning mechanism 121 each include a cushion 14, the cushion 14 being generally "L" shaped. The cushion 14 is wrapped and disposed at the corner of the first fly-eye lens 20 or the second fly-eye lens 30 to achieve positioning of the first fly-eye lens 20 or the second fly-eye lens 30 in the X direction and the Y direction. In the present embodiment, the cushion 14 is located between the fourth side surface 24 and the inner wall 101, and also between the second lens surface 26 and the inner wall 101. The cushion 14 may be a plastic material with some elasticity to achieve better positioning. In the present embodiment, the number of the cushions 14 is two.

In one embodiment, the number of the soft pads 14 may be two, three or four, and the soft pads 14 may be located at the corners of the bracket 100 to satisfy the positioning requirement of the first fly-eye lens 20.

In another embodiment, the cushion 14 may also be a strip and not located at a corner, and the positioning of the first fly-eye lens 20 and the second fly-eye lens 30 in the X direction and the Y direction may also be realized.

Referring to fig. 2, 3 and 11 to 13, the optical assembly 1 further includes a PCS60, in the present embodiment, the PCS60 is also substantially a square plate structure, and the PCS60 is located on the PCS positioning mechanism 116 in the mounting structure 10. The PCS60 is mainly used to convert polarized light of one state after the first fly-eye lens 20 is optically homogenized into polarized light of another state, so as to be more favorable for the utilization of the LCD panel. The PCS60 abuts against the X-direction limiting portion 1162 and is abutted by the second elastic sheet 136 of the first fixing member 13 along the opposite direction of the X-direction, so that the PCS60 is fixed in the X-direction. The PCS60 abuts against the third Y-direction positioning boss 1164, and the PCS60 is fixed in the Y direction. The PCS60 abuts against the Z-direction mounting boss 1166 and is pressed along the Z direction by the second fixing piece 15, so that the PCS60 is fixed in the Z direction.

Referring to fig. 3, 14 and 15, since the PCS60 abuts against the Z-direction mounting boss 1166, the PCS60 and the first fly-eye lens 20 are disposed at an interval in the Z-direction, so that an air duct P1 is formed between the first fly-eye lens 20 and the PCS 60. The air duct P1 is composed of three parts, wherein the first part is between the side of the PCS60 close to the second elastic sheet 136 and the inner wall 101, the second part is between the PCS60 and the first fly-eye lens 20, and the third part is between the side of the PCS60 far from the second elastic sheet 136 and the inner wall 101, and the air duct P1 is beneficial to heat dissipation of the PCS60 and the first fly-eye lens 20 and prevents the PCS60 and the first fly-eye lens 20 from being overheated to cause reduction of service life.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. A mounting structure for an optical module, comprising:

the device comprises a bracket, a first component mounting position and a second component mounting position, wherein the bracket is relatively provided with the first component mounting position and the second component mounting position;

the first element mounting position is provided with a first positioning mechanism for positioning a first fly-eye lens, and the second element mounting position is provided with a second positioning mechanism for positioning a second fly-eye lens;

the first positioning mechanism comprises a first X-direction positioning boss and a first Y-direction positioning boss, the second positioning mechanism comprises a second X-direction positioning boss and a second Y-direction positioning boss, the first X-direction positioning boss and the second X-direction boss protrude in the X direction, and the first Y-direction positioning boss and the second Y-direction boss protrude in the Y direction; the first X-direction positioning boss and the second X-direction positioning boss are same in position and size, and the first Y-direction positioning boss and the second Y-direction positioning boss are same in position and size.

2. A mounting structure for an optical module according to claim 1, wherein the first positioning mechanism and the second positioning mechanism each comprise a cushion, the cushion being wrapped around a corner of the first fly-eye lens or the second fly-eye lens.

3. The mounting structure for optical components according to claim 1, wherein the first component mounting site is further provided with a fence mounting table, the fence mounting table is provided with a first Z-direction supporting table and a fence positioning post which are spaced apart from each other, the first Z-direction supporting table and the fence positioning post both protrude from the fence mounting table in the Z-direction, the first Z-direction supporting table is used for supporting a placing fence, and the fence positioning post is used for positioning a fence position.

4. The mounting structure for an optical module according to claim 1, wherein the first component mounting site is further provided with a PCS positioning mechanism including a Z-direction mounting boss provided on a Z-direction extension thereof away from the second fly-eye lens at a distance from the first fly-eye lens to form an air passage between the PCS and the first fly-eye lens, a Z-direction fixing portion provided on a border line of the bracket in the X-direction to fix the PCS in the Z-direction, an X-direction positioning portion provided on a border line of the bracket in the Y-direction at a distance from the first X-direction positioning boss to position the PCS in the X-direction in cooperation with the X-direction positioning portion, the third Y-direction positioning boss and the first Y-direction positioning boss are arranged at intervals in the Y direction and used for limiting the PCS in the Y direction.

5. The mounting structure for an optical module according to claim 4, wherein the X-direction positioning portion includes a first fixing member, the first fixing member includes a fixing piece, and a first elastic piece and a second elastic piece connected to the fixing piece, the fixing piece is mounted on a side line of the bracket along the Y direction, the first elastic piece abuts against the first fly-eye lens along the opposite direction of the Z direction to fix the first fly-eye lens in the Z direction, and the second elastic piece abuts against the PCS along the opposite direction of the X direction to match the X-direction limiting portion to fix the PCS in the X direction.

6. The mounting structure for an optical module according to claim 5, wherein the Z-direction fixing portion includes a second fixing piece mounted on a borderline of the bracket in the X-direction to fix the PCS in the Z-direction.

7. An optical assembly, comprising: a first fly-eye lens, a second fly-eye lens, and the mounting structure for an optical assembly according to any one of claims 1 to 6, the first fly-eye lens being disposed at the first positioning mechanism, the first X-direction positioning boss and the first Y-direction positioning boss cooperating to position the first fly-eye lens; the second fly-eye lens is arranged on the second positioning mechanism, and the second X-direction positioning boss and the second Y-direction positioning boss are matched to position the second fly-eye lens.

8. An optical assembly according to claim 7, further comprising a barrier between the first fly-eye lens and the second fly-eye lens, wherein a surface of the barrier facing away from the second fly-eye lens is provided with a boss to form a gap with the first fly-eye lens mounted on the barrier.

9. An optical assembly according to claim 8, wherein the barrier is made of an aluminium alloy material.

10. The optical module of claim 7 further comprising a PCS positioned on the PCS positioning mechanism in the mounting structure of claim 6, fixed in the X direction by the first fixture and fixed in the Z direction by the second fixture.