CN-224203563-U - Device for adjusting light-emitting center point of light engine light source and projector thereof

CN224203563UCN 224203563 UCN224203563 UCN 224203563UCN-224203563-U

Abstract

The utility model discloses a device for adjusting a light emitting center point of a light source of a light engine and a projector thereof, comprising a lens supporting shell, a lens ring module, a lens elastic sheet, an adjusting cover plate, an adjusting plate and a three-point fine adjustment lens ring module, wherein the three-point fine adjustment lens ring module is formed by a first adjusting screw, a second adjusting screw and an adjusting spring, and the position of the lens ring module in an X-Y plane is finely adjusted by the first adjusting screw and the second adjusting screw in cooperation with the adjusting spring, so that the fine adjustment of the position of the light emitting center point of the light source is realized, the structure is simple, the adjusting precision is high, the stability is good, and the problem that the adjustment of the light emitting center point of the light source is difficult in the prior art can be effectively solved. After the fine tuning is finished, the lens ring module is fixed through the first locking screw arranged on the top surface and the second locking screw arranged on the lower bottom surface of the lens support shell, so that the structural stability of the lens ring module is determined, and meanwhile, the lens ring module is prevented from being deviated due to vibration or temperature change in the later use process, and the lens ring module has good vibration resistance and temperature change resistance.

Inventors

WU XI
SHEN CHEN
CHEN LONG

Assignees

无锡激擎光电科技有限公司

Dates

Publication Date: 20260505
Application Date: 20250512

Claims (10)

1. An apparatus for adjusting the light center point of a light source of a light engine, comprising: the lens module comprises a lens support shell, a lens ring module, a lens elastic sheet, an adjusting cover plate, an adjusting plate and a three-point fine tuning lens ring module; The lens support shell comprises a front wall surface which is vertically arranged, a lower bottom surface which extends out of the front wall surface along the horizontal direction, and an outer peripheral surface which is surrounded by the front wall surface along one side surface of the light source body; the lens ring module is vertically arranged along the inner wall of the front wall surface, and the front wall surface is correspondingly provided with a first circular opening according to the size of the lens ring module; The adjusting cover plate is adaptively arranged on the top surface of the lens supporting shell; The lens elastic sheet is vertically arranged on the back surface of the lens ring module; The lens elastic sheet is correspondingly provided with a second circular opening according to the size of the lens ring module; The front wall surface of the lens supporting shell and the lens elastic sheet clamp the lens ring module, so that the freedom degree of the lens ring module in the optical axis direction is limited; The adjusting plate is adaptively installed and connected with the top end of the lens ring module; the left and right sides of the adjusting plate are respectively provided with a first mounting surface and a second mounting surface, the first mounting surface is provided with a first adjusting screw, the second mounting surface is provided with a second adjusting screw, an adjusting spring is connected between the lens ring module and the lower bottom surface of the lens supporting shell, one end of the adjusting spring is connected with the center of the bottom end of the lens ring module, and the other end of the adjusting spring is connected with the lower bottom surface of the lens supporting shell; the first adjusting screw, the second adjusting screw and the adjusting spring form a three-point fine tuning lens ring module.
2. The device for adjusting the light-emitting center point of a light source of a light engine according to claim 1, wherein the top surface of the adjusting plate is provided with a first locking screw, and the lower bottom surface of the lens supporting shell is provided with a second locking screw corresponding to the adjusting spring.
3. The device for adjusting the light-emitting center point of a light source of a light engine according to claim 1, wherein the lens ring module comprises a light-emitting opening lens, a lens ring and a lens seat, the lens ring and the lens seat are hollow annular, the light-emitting opening lens is arranged on the inner ring of the lens seat in a clamping manner, the lens ring is arranged on the front end face of the light-emitting opening lens in a clamping manner along the inner ring of the lens seat, and the lens ring and the lens seat lock the light-emitting opening lens to form the lens ring module.
4. The device for adjusting the light-emitting center point of a light source of a light engine according to claim 2, wherein the adjusting plate is integrally formed at a front edge portion of the adjusting cover plate, or the adjusting plate is independently disposed at a lower side of the front edge portion of the adjusting cover plate.
5. The device for adjusting the light center point of a light source of a light engine of claim 1, wherein the adjustment cover plate is sized to fit the top surface of the lens support housing and is mounted to the side of the top surface of the lens support housing with a threaded connection.
6. The apparatus of claim 1, wherein the lens ring module has a radius of 17.25mm and the trimming dimension is within a circle having a radius of 18.25mm at the same center point.
7. The apparatus of claim 1, wherein the lens ring has an outer diameter that is sized to fit the inner diameter of the lens housing.
8. The device for adjusting the light center point of a light source of a light engine of claim 1, wherein the first circular opening has a size greater than the inner diameter of the lens ring and less than the outer diameter of the lens ring, and the second circular opening has a size greater than the inner diameter of the lens holder and less than the outer diameter of the lens holder.
9. The apparatus of claim 1 wherein the width dimension of the adjustment plate is not less than the width dimension of the lens ring module.
10. A projector comprising a device for adjusting the light engine light source light emission center point as claimed in any one of claims 1-9.

Description

Device for adjusting light-emitting center point of light engine light source and projector thereof Technical Field The present utility model relates to the field of light emission from a light source of a projector, and more particularly, to a device for adjusting a light emission center point of a light source of a projector. Background In the projector light engine, the light engine is divided into a light machine module and a light source module, and the light source light-emitting central point of the combination part of the light machine module and the light source module has important influence on light path adjustment and imaging quality. In the prior art, the adjustment of the light emitting center point of the light source generally depends on a complex optical assembly or a fixed structure, so that accurate and rapid adjustment is difficult to realize, and the structure is complex and the cost is high. In addition, the existing adjusting mechanism often lacks stability, and the light emitting center point is easily shifted due to vibration or temperature change, so that the projection effect is influenced. Therefore, a mechanical structure with simple structure, high adjustment precision and good stability is needed to solve the above problems. Disclosure of utility model The utility model aims to solve the technical problems of the prior art, and provides a device for adjusting the light-emitting center point of a light source of a light engine, which has the advantages of convenient installation, high adjustment precision and good stability, and can effectively solve the problem of difficult adjustment of the light-emitting center point of the light source in the prior art. In order to solve the technical problems, the technical scheme adopted by the utility model is that the device for adjusting the light emitting center point of the light source of the light engine comprises a lens supporting shell, a lens ring module, a lens elastic sheet, an adjusting cover plate, an adjusting plate and a three-point fine adjusting lens ring module. Further, the lens support shell comprises a front wall surface which is vertically arranged, a lower bottom surface which extends out of the front wall surface along the horizontal direction, and an outer peripheral surface which is formed by surrounding the front wall surface along one side surface of the light source body, and the lens support shell is arranged on one side of the light source body. Further, the lens ring module is vertically arranged along the inner wall of the front wall surface, and the front wall surface is correspondingly provided with a first circular opening according to the size of the lens ring module. Further, the adjusting cover plate is adaptively installed on the top surface of the lens supporting shell. Further, the lens elastic sheet is vertically arranged on the back surface of the lens ring module. Further, the lens elastic sheet is correspondingly provided with a second circular opening according to the size of the lens ring module. Further, the front wall surface of the lens support housing and the lens elastic sheet clamp the lens ring module, and the freedom degree of the lens ring module in the optical axis direction is limited. Further, the adjusting plate is adaptively installed and connected with the top end of the lens ring module; the left and right sides of the adjusting plate are respectively provided with a first mounting surface and a second mounting surface, the first mounting surface is provided with a first adjusting screw, the second mounting surface is provided with a second adjusting screw, an adjusting spring is connected between the lens ring module and the lower bottom surface of the lens supporting shell, one end of the adjusting spring is connected with the center of the bottom end of the lens ring module, and the other end of the adjusting spring is connected with the lower bottom surface of the lens supporting shell; the first adjusting screw, the second adjusting screw and the adjusting spring form a three-point fine tuning lens ring module. Further, a first locking screw is arranged on the top surface of the adjusting plate, and a second locking screw is arranged on the lower bottom surface of the lens supporting shell corresponding to the adjusting spring. Further, the lens ring module comprises a light outlet lens, a lens ring and a lens seat, the lens ring and the lens seat are hollow annular, the light outlet lens is clamped and installed on the inner ring of the lens seat, the lens ring is clamped and assembled on the front end face of the light outlet lens along the inner ring of the lens seat, and the lens ring and the lens seat lock the light outlet lens to form the lens ring module. Further, the adjusting plate is integrally formed at the front edge part of the adjusting cover plate, or the adjusting plate is independently arranged at the lower side of the front edge part of the adjusting c