CN211741669U

CN211741669U - Adjusting structure of optical lens

Info

Publication number: CN211741669U
Application number: CN202020430383.7U
Authority: CN
Inventors: 黄键; 陈龙; 吕伟杰
Original assignee: Wuxi Seemile Laser Display Technology Co Ltd
Current assignee: Wuxi Seemile Laser Display Technology Co Ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-10-23
Anticipated expiration: 2030-03-30

Abstract

The utility model discloses an adjusting structure of optical lens, the adjusting structure comprises a lens component, an adjusting piece, a fixing piece, a base and an elastic piece, the lens component comprises a lens and a lens mounting piece for mounting the lens, the lens component is mounted on the base through the adjusting piece, the fixing piece and the elastic piece, wherein, one side of the elastic piece is abutted against the side edge of the lens mounting piece, the other side far away from the lens component is abutted against the fixing piece, and the fixing piece is detachably mounted on the base; the adjusting piece is screwed on the base, one end of the adjusting piece abuts against the position, which is not abutted against the elastic piece, of the side edge of the lens mounting piece, and the other end of the adjusting piece extends out of the base. The utility model discloses an adjustment structure of optical lens piece has simple structure, is convenient for adjust, adjust front and back lens subassembly stability advantage such as good.

Description

Adjusting structure of optical lens

Technical Field

The utility model relates to a light source technical field, concretely relates to adjustment structure of optical lens piece.

Background

In the light source device of the laser projector, the optical lens is the basis for realizing optical imaging. The fixing mode and stability of the optical lens determine the quality of optical imaging. General optical lens passes through mechanism's piece draw-in groove direct mount, and the draw-in groove is by the mould shaping, has guaranteed the fixed uniformity of lens and the structure is also simple relatively simultaneously. However, in the same way, the forming of the mechanism part inevitably has tolerance and the assembling has installation and positioning tolerance, so that the positioning of the optical part is not completely matched with the design value, and the optical efficiency cannot be completely reflected.

For this reason, a mechanism capable of adjusting the optical lens is required, and some related researches have been made:

for example, chinese patent application publication No. CN102540401A discloses a lens adjusting device, which comprises an adjusting plate, three adjusting screws mounted on the adjusting plate; the lens assembly is arranged on the pressing plate, the pressing plate is provided with three screw holes, the three adjusting screws are connected with the screw holes, and a certain distance is reserved between the pressing plate and the adjusting plate; at least one elastic element, wherein the elastic element is positioned between the adjusting plate and the pressing plate; because the elastic element is arranged between the pressing plate and the adjusting plate, the angle of the lens arranged on the pressing plate is adjusted by the elastic force of the elastic element, compared with the existing lens adjusting device, the lens adjusting device has small volume and light weight, can reduce the load of a driving motor and improve the running speed;

for another example, chinese utility model patent document No. CN2456339Y discloses a radial adjustment type laser optical lens holder. The support frame is mainly composed of a base fixing frame, an adjusting plate and a lens. In order to realize radial adjustment of the three-dimensional position of the lens, inclined grooves are formed in the same side plane of the adjusting plate, threaded jackscrews are arranged on fixing frames corresponding to the inclined grooves, and the three-dimensional position of the lens can be adjusted by adjusting the advance and retreat of the jackscrews;

for another example, chinese utility model patent document CN208000404U discloses a simple angle adjusting frame, which comprises a frame, wherein the frame has a step end, an optical lens and a pressing ring are mounted in the frame, and a ring groove is cut on the outer side wall of the frame; the rotating cylinder is sleeved at the step end of the mirror frame and can rotate around the mirror frame; the fixed plate is fixed with the step end of the mirror frame through a fastener; the adjusting screw penetrates through the side wall of the rotary cylinder in a threaded manner and abuts against the mirror frame; the utility model discloses technical scheme makes the lens deflect through adjusting screw through setting up adjusting screw on angular adjustment frame, the two-dimentional interference phenomenon that produces when having avoided among the prior art two-dimentional angle modulation.

Although the above document solves the problem of adjusting the optical lens to some extent, the adjusting structure of the above technology directly acts on the elastic element or directly acts on the lens assembly, and still has a certain problem in terms of stability of the adjusted lens assembly, and the structure is relatively complex.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a simple structure, be convenient for the adjustment and lens subassembly is good optical lens piece adjustment structure of stability after the adjustment.

The utility model discloses a following technical scheme realizes:

an adjusting structure of an optical lens comprises a lens assembly, an adjusting piece, a fixing piece, a base and an elastic piece, wherein the lens assembly comprises a lens and a lens mounting piece for mounting the lens, the lens assembly is mounted on the base through the adjusting piece, the fixing piece and the elastic piece, one side of the elastic piece is abutted against the side edge of the lens mounting piece, the other side, far away from the lens assembly, of the elastic piece is abutted against the fixing piece, and the fixing piece is detachably mounted on the base; the adjusting piece is screwed on the base, one end of the adjusting piece abuts against the position, which is not abutted against the elastic piece, of the side edge of the lens mounting piece, and the other end of the adjusting piece extends out of the base.

In the utility model, the preferred scheme does, the adjusting part is 2 at least, has certain contained angle between each adjusting part.

In the utility model, the preferred scheme does, the adjusting part is 2, and the contained angle of each adjusting part is 90 degrees.

The utility model discloses in, preferred scheme does, the adjusting part is the screw rod, be equipped with the screw that supplies the adjusting part installation on the base.

The utility model discloses in, preferred scheme does, the mounting is screw or screw rod, be equipped with the screw that supplies the mounting installation on the base, the one end and the elastic component butt of mounting, the other end pass the screw and stretch out the base.

In the utility model, the preferred scheme does, the elastic component is metal shrapnel.

In the utility model, the preferred scheme does, the lens is 2 at least.

The utility model discloses in, preferred scheme does, the base is equipped with a concave part, the concave part is used for holding elastic component and lens subassembly, the concave part size slightly is greater than the size of lens subassembly and removes in the concave part for the lens subassembly.

In the utility model, the preferred scheme does, the adjusting part sets up the offside at the mounting.

The utility model discloses in, preferred scheme does, the adjustment piece is 2, and the contained angle of 2 adjustment pieces is 90 degrees, the mounting sets up on the angular bisector of 2 adjustment piece contained angles.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses an optical lens piece adjustment structure, simple structure, the operation of being convenient for to lens subassembly stability is good around the adjustment.

Drawings

Fig. 1 is a schematic structural view of an adjustment structure of an optical lens according to embodiment 1 of the present invention;

wherein, 1, a base; 2. a lens; 3. a lens mount; 4. an elastic member; 5. an adjustment member; 6. and a fixing member.

Detailed description of the preferred embodiments

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Through the arrangement of the structure, one end of the elastic piece is abutted against the side edge of the lens mounting piece, the fixing piece at the other end is abutted against the elastic piece and transmits force to the side edge of the lens mounting piece, and the adjusting piece is abutted against the position, which is not abutted against the elastic piece, on the side edge of the lens mounting piece, so that the lens assembly is mounted on the base through the pressure commonly applied by the adjusting piece, the elastic piece and the fixing piece; the adjustment to the lens subassembly is realized through such mode, when needing to adjust lens subassembly position, loosen the detachable mounting, make the mounting temporarily break away from the contact with the elastic component or make between the two become not hard up relation by the in close contact, make the elasticity spare for the application of force of lens subassembly diminish or even eliminate, then stretch out the one end of base through the rotating adjustment piece, make the power between the lens installed part of adjustment piece and its butt change (the one end length that the adjustment piece stretched into base and lens installed part butt changes promptly), just so can make the position of lens change, after the adjustment of adjustment piece is finished, again with mounting butt on the elastic component, accomplish fixedly promptly, and based on three's power, in addition the effect of elastic component, make the lens subassembly after the adjustment position more stable.

For the lens mount, a member for fixing the lens, such as a member capable of engaging the lens therein, e.g., an annular member or a member having an annular groove in which the lens is engaged; the number of the lenses can be one or more than two, and when the number of the corresponding lenses is more than two, the lens mounting pieces are correspondingly adapted according to the number of the lenses; for more than 2 lenses here, it is not to say that the number of lenses can be infinite, but the art can set the number of lenses to be in the range of 2 to the maximum value (i.e. the maximum number of lenses required by the product or the maximum installation amount) based on the product.

The number of the adjusting members is not particularly limited, and may be 1 or 2 or more; in order to make the lens assembly more stable, the adjusting pieces can be arranged to be more than 2, and a certain included angle is formed between the adjusting pieces, so that the force transmitted by the fixing piece through the elastic piece and the force applied by each adjusting piece act on the lateral edge of the lens mounting piece together, and the lens assembly is more stable; the included angle between the adjusting pieces can be set according to actual needs, and is not particularly limited, but a person skilled in the art can know that the included angle is necessarily smaller than 360 degrees based on the actual product; for the above 2 adjusting members, it is not to say that the number of the adjusting members can reach infinity, but the technology in the art can set the number of the adjusting members to be in the range of 2 to the maximum value (i.e. the maximum number of the adjusting members required by the product or the maximum installation amount) based on the product; the number of the adjusting pieces is 2, so that the extending lines of the adjusting pieces and the fixing pieces applying pressure form a triangle, and the lens assembly is arranged to be most stable; furthermore, when the number of the adjusting pieces is 2, the included angle of each adjusting piece is 90 degrees, so that the position of the lens component can be adjusted more conveniently.

For the adjusting piece, the adjusting piece can be set into a part which has threads and can be screwed on the base according to actual needs, and the adjusting piece can be a screw rod, a screw and other parts; in order to avoid damage to the lens mounting piece and excessive local force application, the adjusting piece is not required to be abutted to the excessively sharp end of one end of the lens mounting piece, and is arranged flatly, for example, the adjusting piece is arranged as a screw rod, so that the damage to the lens mounting piece can be avoided, the contact area with the lens mounting piece can be increased, the mounting is more stable, corresponding stress can be dispersed, and excessive pressure on the local part of the lens mounting piece can be avoided; correspondingly, the base is provided with a screw hole for installing the adjusting piece.

To the mounting, because of its not direct and lens installed part direct contact, can not do special restriction to its one end contact surface with the elastic component butt, can level and smooth the setting, also can the unevenness setting, the screw or screw rod can be chooseed for use to the correspondence, be equipped with the screw that supplies the mounting installation on the base, the one end and the elastic component butt of mounting, the other end pass the screw and stretch out the base, convenient to use person's operation.

The selection of the elastic element may not be particularly limited, but in order to improve the service life of the product and avoid the damage of the fixing element to the elastic element, the elastic element may be selected as a metal spring sheet, or the position where the elastic element abuts against the fixing element is provided with a relevant metal elasticity or other materials with higher hardness but capable of being deformed by being stressed.

For the base, those skilled in the art know that the component for mounting the lens assembly may be an existing product base, or may be differently configured according to actual needs of a product. To facilitate the installation or adjustment of the lens assembly, the following arrangement may be made: the base is provided with a concave part, the concave part is used for accommodating the elastic piece and the lens assembly, and the size of the concave part is slightly larger than that of the lens assembly so that the lens assembly can move in the concave part; slightly larger here means that the lens assembly can still horizontally move in the concave part when the elastic body is arranged under the condition that the lens assembly is not stressed, and a person skilled in the art can make a matched setting according to the adjustment range of the lens.

No special requirements may be made for the orientation arrangement of the adjustment member compared to the fixing member, but for a more stable arrangement of the lens assembly, such a design may be made: the number of the adjusting pieces is 2, the included angle of the 2 adjusting pieces is 90 degrees, and the fixing piece is arranged on the angle bisector of the included angle of the 2 adjusting pieces; the pressure resultant force applied to the lens assembly by the 2 adjusting pieces and the pressure applied to the lens assembly by the fixing piece through the elastic piece are just on the same straight line, and the acting directions are opposite, so that the lens assembly can be more stable.

Example 1

Referring to fig. 1, an adjusting structure of an optical lens includes a lens assembly, an adjusting member 5, a fixing member 6, a base 1 and an elastic member 4, the lens assembly includes a lens 2 and a lens mounting member 3 for mounting the lens, the lens assembly is mounted on the base through the adjusting member, the fixing member and the elastic member, wherein one side of the elastic member abuts against a side edge of the lens mounting member, the other side, far away from the lens assembly, abuts against the fixing member, and the fixing member is detachably mounted on the base; the adjusting piece is screwed on the base, one end of the adjusting piece abuts against the position, which is not abutted against the elastic piece, of the side edge of the lens mounting piece, and the other end of the adjusting piece extends out of the base; the adjusting piece is a screw rod, and a screw hole for mounting the adjusting piece is formed in the base; the fixing piece is a screw, a screw hole for mounting the fixing piece is formed in the base, one end of the fixing piece is abutted against the elastic piece, and the other end of the fixing piece penetrates through the screw hole and extends out of the base; the elastic piece is a metal elastic piece; the base is provided with a concave part, the concave part is used for accommodating the elastic piece and the lens assembly, and the size of the concave part is slightly larger than that of the lens assembly so that the lens assembly can move in the concave part; the adjusting piece is arranged on the opposite side of the fixing piece; the adjusting piece is 2, the included angle of 2 adjusting pieces is 90 degrees, the fixing piece is arranged on the angular bisector of the included angle of 2 adjusting pieces

Example 2

The utility model provides an adjustment structure of optical lens piece, the concave part that is used for installing the lens subassembly on the base is "omega" shape, and the circular position in top is used for installing the lens subassembly, and the position that the below is the bar is used for installing the elastic component, metal shrapnel promptly, and other structures, part, relation of connection, parameter all are the same with embodiment 1.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. An adjusting structure of an optical lens comprises a lens assembly, an adjusting piece, a fixing piece, a base and an elastic piece, wherein the lens assembly comprises a lens and a lens mounting piece for mounting the lens; the adjusting piece is screwed on the base, one end of the adjusting piece abuts against the position, which is not abutted against the elastic piece, of the side edge of the lens mounting piece, and the other end of the adjusting piece extends out of the base.

2. The adjusting structure of an optical lens according to claim 1, wherein the number of the adjusting members is at least 2, and a certain included angle exists between the adjusting members.

3. The adjusting structure of an optical lens according to claim 2, wherein the number of the adjusting members is 2, and the included angle of each adjusting member is 90 degrees.

4. The adjusting structure of an optical lens according to claim 1, wherein the adjusting member is a screw, and the base has a screw hole for mounting the adjusting member.

5. The adjusting structure of an optical lens according to claim 1, wherein the fixing member is a screw or a threaded rod, the base has a threaded hole for the fixing member to be mounted thereon, one end of the fixing member abuts against the elastic member, and the other end of the fixing member extends out of the base through the threaded hole.

6. The adjusting structure of an optical lens according to claim 1, wherein the elastic member is a metal spring.

7. The adjustment structure for an optical lens according to claim 1, wherein the lens is at least 2 pieces.

8. The adjusting structure for optical lens elements of claims 1-2 and 4-6, wherein the base has a recess for receiving the elastic element and the lens assembly, the recess being slightly larger than the lens assembly for the lens assembly to move in the recess.

9. The adjusting structure of an optical lens according to claim 8, wherein the adjusting member is disposed on an opposite side of the fixing member.

10. The adjusting structure of an optical lens according to claim 9, wherein the number of the adjusting members is 2, the included angle of the 2 adjusting members is 90 degrees, and the fixing member is disposed on the bisector of the included angle of the 2 adjusting members.