CN219285572U

CN219285572U - Lens module of projector

Info

Publication number: CN219285572U
Application number: CN202320561404.2U
Authority: CN
Inventors: 何立勇; 王秀堂; 贺超; 林斯丽
Original assignee: Shenzhen Daxinglang Electronic Technology Co ltd
Current assignee: Shenzhen Daxinglang Electronic Technology Co ltd
Priority date: 2023-03-10
Filing date: 2023-03-10
Publication date: 2023-06-30
Anticipated expiration: 2033-03-10

Abstract

The utility model discloses a lens module of projector, the light source module includes: one end of the lens barrel is connected with the light emergent end of the projector, and a plurality of groups of through grooves which are equidistantly arranged are arranged on the lens barrel; the lens is arranged in the lens cone, and a plurality of screws respectively penetrating through the plurality of groups of through grooves are arranged at the edge of each lens; the lens barrel comprises a cover body, wherein the cover body covers the lens barrel, the cover body is provided with a plurality of groups of adjusting grooves respectively penetrated by a plurality of screws of each lens, the included angle between any adjusting groove and any through groove is not 90 degrees, and a plurality of adjusting grooves matched with the screws of the same lens are mutually parallel. The utility model can realize the simultaneous adjustment of a plurality of groups of lenses by rotating the cover body, and compared with the high-precision lens in the prior art, the adjusting structure has lower cost and is easier to produce.

Description

Lens module of projector

Technical Field

The present disclosure relates to a lens module, and particularly to a lens module for a projector.

Background

Projector lenses are an important component that enlarges and projects images onto a screen. The lens is the core of the lens, and the definition and size of projection are adjusted by focusing light.

In many portable and home projectors, the lens is typically fixed and cannot be adjusted. This means that the user cannot adjust the definition or size of the projection by himself, but must use the projector at a specific distance and location. This also limits the usage scenarios and flexibility of the projector.

Other projectors have adjustable lenses, but the cost of the adjustment structure is high, the adjustment structure is produced based on high precision machine tools and high strength metal materials, and the adjustment structure is not suitable for the field of children toys with low precision requirements and low cost.

In the field of children toys, there are also some low-cost adjustable lenses, the lenses are limited in the through grooves of the lens barrel through bolts, and the lenses move along the through grooves by poking the bolts, so that low-cost adjustment is realized, but the structure does not support simultaneous adjustment of multiple groups of lenses, so that the playability is low.

Disclosure of Invention

The utility model aims to provide a lens module of a projector.

In order to achieve the above purpose, the following technical scheme is adopted:

a lens module of a projector, the lens module comprising: one end of the lens barrel is connected with the light emergent end of the projector, and a plurality of groups of through grooves which are equidistantly arranged are arranged on the lens barrel; the lens groups are arranged in the lens barrel, and a plurality of screws respectively penetrating through the plurality of groups of through grooves are arranged at the edge of each lens; the lens barrel comprises a lens barrel body and is characterized by comprising a cover body, wherein the cover body covers the lens barrel body, the cover body is provided with a plurality of groups of adjusting grooves respectively for a plurality of screws of each lens to pass through, an included angle between any adjusting groove and any through groove is not 90 degrees, and a plurality of adjusting grooves matched with the screws of the same lens are mutually parallel.

Further, the plurality of groups of adjusting grooves matched with the same through groove are not parallel to each other. Therefore, when the cover body rotates, the displacement distances of the plurality of groups of lenses are inconsistent, so that the lens is suitable for different scenes.

Further, the cylinder body is provided with a plurality of outwards protruding limiting parts, the cover body is provided with a plurality of groups of limiting grooves, the limiting parts penetrate through the limiting grooves, and the limiting grooves are perpendicular to the through grooves. Through spacing portion and spacing groove, when the screw is driven along leading to the groove removal, can avoid the cover to move relative to the lens cone, namely can keep the cover and lens cone relatively fixed, avoid influencing the regulation precision.

Further, a buffer ring is connected to the screw surface in a threaded mode, and the tail end of the screw is connected with the lens in a threaded mode. Preventing the screw from wearing the inner wall of the through groove and the adjusting groove.

The technical scheme of the utility model has the following beneficial effects:

the simultaneous adjustment of multiple groups of lenses can be realized by rotating the cover body, and the adjusting structure is lower in cost and easier to produce compared with the high-precision lens in the prior art.

Drawings

Fig. 1 is a schematic structural diagram of a lens module according to an embodiment of the disclosure;

FIG. 2 is a schematic illustration of the structure of the dispensing cover of FIG. 1;

FIG. 3 is a schematic view of the structure of the cover in the embodiment of the present disclosure;

fig. 4 is a schematic structural view of a lens in an embodiment of the present disclosure.

Reference numerals:

1. a lens barrel; 11. a through groove; 12. a limit part; 2. a lens; 21. a screw; 22. a screw hole; 3. a cover body; 31. an adjustment tank; 32. and a limit groove.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 4, an embodiment of the present disclosure provides a lens module of a projector, including: the lens barrel 1, one end of the lens barrel 1 is connected with the light emergent end of the projector, and a plurality of groups of through grooves 11 which are equidistantly arranged are arranged on the barrel body; a plurality of groups of lenses 2, wherein the groups of lenses 2 are arranged in the lens barrel 1, and a plurality of screws 21 respectively penetrating through the groups of through grooves 11 are arranged at the edge of each lens 2; the lens comprises a cover body 3, wherein the cover body 3 covers the lens barrel 1, the cover body 3 is provided with a plurality of groups of adjusting grooves 31 respectively penetrated by a plurality of screws 21 of each lens 2, the included angle between any adjusting groove 31 and any through groove 11 is not 90 degrees, and a plurality of adjusting grooves 31 matched with the screws 21 of the same lens 2 are mutually parallel.

Wherein the multiple groups of adjusting grooves 31 matched with the same through groove 11 are not parallel to each other. In this way, when the cover 3 rotates, the displacement distances of the plurality of groups of lenses 2 are not consistent, so that the lens is suitable for different scenes.

The cylinder body is provided with a plurality of outwards protruding limiting parts 12, the cover body 3 is provided with a plurality of groups of limiting grooves 32, the limiting parts 12 penetrate through the limiting grooves 32, and the limiting grooves 32 are perpendicular to the through grooves 11. Through the limiting part 12 and the limiting groove 32, when the screw 21 is driven to move along the through groove 11, the cover body 3 can be prevented from being displaced relative to the lens barrel 1, namely, the cover body 3 and the lens barrel 1 can be kept relatively fixed, and the adjustment precision is prevented from being influenced.

The surface of the screw 21 is connected with a buffer ring in a threaded manner, and the tail end of the screw 21 is connected with the lens 2 in a threaded manner. Preventing the screw 21 from wearing the inner wall of the through groove 11 and the adjusting groove 31. And, the lens 2 is provided with screw holes 22 that are engaged with the screws 21.

Description of principle: when the cover body 3 is rotated, since the included angle between the adjusting groove 31 and the through groove 11 does not form 90 °, the rotation of the cover body 3 can form extrusion to the screw 21, so that the screw 21 moves along the through groove 11, the moving distance of the screw is positively correlated with the included angle between the adjusting groove 31 and the through groove 11, the smaller the included angle approaches 90 °, the moving distance of the screw 21 is further away from 90 °, and the moving distance is further. By rotating the cover 3, the plurality of groups of lenses 2 are displaced at the same time, so that the effect of refraction imaging of the projector is changed.

In addition, the angle between the adjusting groove 31 and the through groove 11 corresponding to the different lenses 2 may be designed so as to be increased in proportion.

From the above, the utility model can realize the simultaneous adjustment of a plurality of groups of lenses 2 by rotating the cover body 3, and the adjusting structure has lower cost and easier production compared with the high-precision lens in the prior art, and has better projection effect compared with the traditional linear adjusting lens or non-adjustable lens.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model. Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the utility model and form different embodiments. For example, in the claims below, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Claims

1. A lens module of a projector, comprising:

one end of the lens barrel is connected with the light emergent end of the projector, and a plurality of groups of through grooves which are equidistantly arranged are arranged on the lens barrel;

the lens groups are arranged in the lens barrel, and a plurality of screws respectively penetrating through the plurality of groups of through grooves are arranged at the edge of each lens;

the lens barrel comprises a lens barrel body and is characterized by comprising a cover body, wherein the cover body covers the lens barrel body, the cover body is provided with a plurality of groups of adjusting grooves respectively for a plurality of screws of each lens to pass through, an included angle between any adjusting groove and any through groove is not 90 degrees, and a plurality of adjusting grooves matched with the screws of the same lens are mutually parallel.

2. The lens module of claim 1, wherein the plurality of adjustment slots that are aligned with the same through slot are not parallel to each other.

3. The lens module of the projector according to claim 1, wherein a plurality of protruding limiting portions are arranged on the barrel body, a plurality of groups of limiting grooves are formed in the cover body, the limiting portions penetrate through the limiting grooves, and the limiting grooves are perpendicular to the through grooves.

4. The lens module of the projector according to claim 1, wherein the screw surface is screwed with a buffer ring, and the end of the screw is screwed with the lens.