Micro lens array with positioning structure, lens module and vehicle lamp device

Abstract

The utility model discloses a microlens array with a positioning structure, a lens module and a vehicle lamp device, the microlens array comprises an effective area and an ineffective area arranged around the effective area, and the periphery of the ineffective area is provided with a positioning block used for installing the microlens array. According to the utility model, the positioning block structure is independently arranged at the periphery of the ineffective area of the micro-lens array, so that the size of the ineffective area can be effectively reduced, and the production cost is far lower than that of the existing product with the same volume; through the arrangement of the positioning structure, high-precision rapid assembly can be realized, the projection definition is high, and the micro-lens array is suitable for a product formed by combining a plurality of micro-lens arrays.

Description

Technical Field

[0001] The utility model relates to an optical lens, in particular to a micro lens array with a positioning structure, a lens module and a vehicle lamp device. Background Art

[0002] The microlens array is an array composed of many micron-sized lenses of the same shape arranged in a two-dimensional grid. The existing microlens array is usually a corresponding support, and an invalid area with a width greater than 1mm needs to be set around the effective area. The invalid area is connected to the support to achieve the installation of the microlens array. When in use, the effective area is hollowed out to let light pass. Obviously, the larger the invalid area, the higher the cost of the microlens array, and the smaller the invalid area, the more difficult it is to install the microlens array.

[0003] The above-mentioned installation structure is only applicable to the assembly of a single microlens array due to the lack of a corresponding circumferential positioning structure. When multiple microlens arrays are used in combination, the placement angle of each microlens array needs to be adjusted separately, resulting in low positioning accuracy and affecting projection clarity. Summary of the invention

[0004] Purpose of the utility model: The purpose of the utility model is to provide a microlens array with a positioning structure, which can effectively reduce the size of the invalid area around the microlens array.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A microlens array with a positioning structure comprises an effective area and an ineffective area arranged around the effective area. The periphery of the ineffective area is provided with a positioning block for installing the microlens array.

[0007] Furthermore, the width of the ineffective area is less than or equal to 0.4 mm.

[0008] Furthermore, the positioning block has at least one bonding surface and at least one positioning column, and the bonding surface is bonded and fixed to the ineffective area.

[0009] Furthermore, the positioning block has at least one bonding surface and at least one positioning hole, and the bonding surface is bonded and fixed to the ineffective area.

[0010] Furthermore, the positioning block also has at least one positioning surface.

[0011] Furthermore, the number of the positioning blocks is two, and they are symmetrically distributed on both sides of the microlens array.

[0012] Furthermore, the positioning block is made of plastic.

[0013] A lens module comprises at least one of the above-mentioned microlens arrays.

[0014] Furthermore, it also includes a lens sheet made of plastic material, the microlens array is mounted on the lens sheet through a positioning block, and mounting holes are arranged on the periphery of the lens sheet.

[0015] A vehicle lamp device comprises a light source and the above-mentioned lens module.

[0016] Beneficial effects: The utility model can effectively reduce the size of the invalid area to no more than 0.4 mm by separately setting a positioning block structure on the periphery of the invalid area of ​​the microlens array, and the production cost is much lower than the existing products of the same volume; after setting the positioning structure, high-precision and rapid assembly can be achieved, and the projection clarity is high, which is suitable for products that use multiple microlens arrays in combination. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the microlens array structure of the utility model;

[0018] Figure 2 The structure diagram of the positioning block Figure 1 ;

[0019] Figure 3 The structure diagram of the positioning block Figure 2 ;

[0020] Figure 4 It is a schematic diagram of the assembly of the positioning block and the support member;

[0021] Figure 5 It is a structural schematic diagram of a lens module;

[0022] In the figure: 1-effective area; 2-ineffective area; 3-positioning block; 4-bonding surface; 5-positioning column; 6-positioning hole; 7-positioning surface; 8-support member; 9-upper lens sheet; 10-lower lens sheet; 11-mounting hole. DETAILED DESCRIPTION

[0023] The utility model is further explained below in conjunction with the accompanying drawings.

[0024] like Figure 1As shown, the utility model is a microlens array with a positioning structure, the microlens array includes an effective area 1 and an invalid area 2 arranged around the effective area, wherein the effective area 1 is hollowed out and light-permeable, serving as the working area of ​​the microlens array, and the invalid area 2 is used for the installation of the microlens array. In order to effectively reduce the size of the invalid area around the microlens array, a positioning block 3 for installing the microlens array is arranged at the periphery of the invalid area 2. The positioning block 3 is made of plastic. The positioning blocks 3 are set to two and symmetrically arranged on both sides of the microlens array. By separately setting a positioning block 2 structure made of plastic material at the periphery of the invalid area 2 of the microlens array, the size of the invalid area can be effectively reduced. Specifically, the width of the invalid area is less than or equal to 0.4 mm.

[0025] like Figure 1 and 2 As shown, the positioning block 3 has at least one bonding surface 4 and at least one positioning column 5. The bonding surface 4 is bonded and fixed to the surface of the invalid area. The positioning column 5 is used to assemble with a support member (not shown in the figure). When the positioning block 3 structure is adopted, the support member is provided with positioning grooves or positioning holes corresponding to the positioning columns 5 one by one. The positioning columns 5 are adapted to the positioning grooves or holes on the support member. The positioning columns 5 on the positioning block 3 are assembled with the hole axes of the positioning grooves or positioning holes on the support member to achieve the effect of installing the microlens array on the support member.

[0026] like Figure 3 As shown, the positioning block 3 has at least one bonding surface 4 and at least one positioning hole 6. The bonding surface 4 is bonded and fixed to the surface of the invalid area. The positioning hole 6 is used to assemble with a support member (not shown in the figure). When the positioning block 3 structure is adopted, the support member is provided with positioning posts corresponding to the positioning posts 6 one by one. The positioning holes 6 are adapted to the positioning posts on the support member. The positioning holes 6 on the positioning block are assembled with the hole axes of the positioning posts on the support member to achieve the effect of installing the microlens array on the support member.

[0027] like Figure 2 and 4 As shown, the positioning block 3 also has at least one positioning surface 7. Correspondingly, the support member 8 is also provided with a positioning surface 7 corresponding to the positioning surface 7, and the positioning block 3 is installed on the support member 8 by overlapping the positioning surfaces 7 of the positioning block 3 and the support member 8.

[0028] The utility model provides a lens module, which comprises the above-mentioned microlens array with a positioning structure, and the microlens array is at least one. For a single microlens array, the microlens array can be mounted on the support member through the positioning block thereof and the hole axis of the support member. For multiple microlens arrays, each microlens array is mounted on the support member through the positioning block thereof and the hole axis of the support member, so as to achieve the effect of mounting the microlens array on the support member.

[0029] like Figure 5 As shown, a lens module of the utility model further includes a lens sheet made of plastic material, a micro lens array is mounted on the lens sheet through a positioning block, and a mounting hole for mounting the lens sheet is arranged on the periphery of the lens sheet. The lens sheet includes an upper lens sheet 9 and a lower lens sheet 10, the micro lens array is assembled with the hole axis of the positioning hole of the upper lens sheet 9 through the positioning column 5 on the positioning block 3 thereof, so as to achieve the effect of mounting the micro lens array on the lens sheet, the upper lens sheet 9 and the lower lens sheet 10 are mutually snap-fitted and mounted together, and the lower lens sheet 10 is mounted on the surface of the PCB (circuit board) through its mounting hole 11.

[0030] The utility model discloses a vehicle lamp device, which comprises a light source and a lens module.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A microlens array with a positioning structure, the microlens array comprising an effective area and an ineffective area arranged around the effective area, the effective area is hollowed out to allow light to pass through and serves as a working area of ​​the microlens array, and the ineffective area is used for the installation of the microlens array, characterized in that: The periphery of the ineffective area is provided with a positioning block for mounting the microlens array.

2. The microlens array with a positioning structure according to claim 1, characterized in that: The width of the ineffective area is less than or equal to 0.4 mm.

3. The microlens array with a positioning structure according to claim 1, characterized in that: The positioning block has at least one bonding surface and at least one positioning column, and the bonding surface is bonded and fixed to the ineffective area.

4. The microlens array with a positioning structure according to claim 1, characterized in that: The positioning block has at least one bonding surface and at least one positioning hole, and the bonding surface is bonded and fixed to the ineffective area.

5. The microlens array with a positioning structure according to claim 3 or 4, characterized in that: The positioning block also has at least one positioning surface.

6. The microlens array with a positioning structure according to claim 1, characterized in that: The number of the positioning blocks is two, and they are symmetrically distributed on both sides of the microlens array.

7. The microlens array with a positioning structure according to claim 1, characterized in that: The positioning block is made of plastic.

8. A lens module, characterized in that: Comprising at least one microlens array as claimed in claim 1.

9. A lens module according to claim 8, characterized in that: It also includes a lens sheet made of plastic material. The microlens array is mounted on the lens sheet through a positioning block, and mounting holes are arranged on the periphery of the lens sheet.

10. A vehicle lamp device, characterized in that :Comprising a light source and the lens module as described in claim 8.

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