Optical engine module

Patent metadata

Field	Value
Publication number	US-11249378-B2
Application number	US-201916675190-A
Country	US
Kind code	B2
Filing date	Nov 5, 2019
Priority date	Nov 16, 2018
Publication date	Feb 15, 2022
Grant date	Feb 15, 2022

Abstract

An optical engine module comprises a casing, a light valve, a heat dissipating module, and at least three fixtures. The casing comprises at least three fixing structures. The light valve is disposed in the casing and is connected to the casing. The light valve comprises a heat interface. The heat dissipating module comprises a heat dissipating surface in contact with the heat interface of the light valve. The number of the at least three fixing structures and positions of the same correspond respectively to the number of the at least three fixtures and positions of the same. The heat dissipating module is connected to the casing by matching the at least three fixing structures and the at least three fixtures. In the optical engine module, improved stability of the heat dissipating module, preferable heat dissipating efficiency for the light valve, and thus good optical effect are provided.

First claim

What is claimed is:

1. An optical engine module, comprising a casing, a light valve, a heat dissipating module, and at least three fixtures, wherein:
the casing comprises at least three fixing structures,
the light valve is disposed in the casing and is connected to the casing, wherein the light valve comprises a heat interface,
the heat dissipating module comprises a heat dissipating surface, wherein the heat dissipating surface of the heat dissipating module is in contact with the heat interface of the light valve,
a number of the at least three fixing structures and positions of the at least three fixing structures correspond respectively to a number the at least three fixtures and positions of the at least three fixtures,
the heat dissipating module is connected to the casing by matching the at least three fixing structures with the at least three fixtures; and
the optical engine module further comprises at least one adapter, wherein the at least one adapter is connected between one of the at least three fixtures and one of the at least three fixing structures, and at least another one of the at least three fixing structures is directly connected to at least another one of the at least three fixtures.

2. The optical engine module according to claim 1 , wherein the number of the at least three fixtures is three.

3. The optical engine module according to claim 1 , wherein on a plane parallel to the heat interface of the light valve, the at least three fixtures form a triangle or another polygon.

4. The optical engine module of claim 1 , wherein the heat dissipating module comprises at least three perforations, and the at least three fixtures or the at least three fixing structures respectively passes through the at least three perforations.

5. The optical engine module according to claim 4 , wherein at least one of the at least three fixing structures of the casing is a fixing column and the fixing column is internally threaded, and wherein at least one of the at least three fixtures is connected to the fixing column by passing through at least one of the at least three perforations of the heat dissipating module.

6. The optical engine module according to claim 5 , wherein a number of the fixing column is plural and heights of a plurality of fixing columns are identical or different from one another.

7. The optical engine module according to claim 1 , further comprising:
at least three spring sets, the at least three spring sets are respectively connected between the at least three fixtures and the at least three fixing structures.

8. The optical engine module according to claim 7 , wherein the at least three spring sets include helical compression springs, disc springs, and combinations thereof.

9. The optical engine module according to claim 1 , further comprising:
a circuit board, wherein the circuit board is disposed between the light valve and the heat dissipating module and is connected to the casing.

10. The optical engine module according to claim 9 , wherein the heat dissipating module comprises a protruding part, the heat dissipating surface of the heat dissipating module is located at an end of the protruding part, the circuit board comprises a perforation hole, and the protruding pat of the heat dissipating module passes through the perforation hole of the circuit board to be in contact with the heat interface of the light valve.

11. The optical engine module according to claim 10 , wherein the casing further comprises at least one circuit board fixing structure, at least one circuit board perforation is disposed in the circuit board, and the optical engine module further comprises at least one circuit board fixture, wherein the at least one circuit board fixture passes through the at least one circuit board perforation to be locked to the at least one circuit board fixing structure of the casing, so as to fix the circuit board between the light valve and the heat dissipating module.

12. The optical engine module according to claim 11 , wherein the at least one circuit board fixing structure comprises a fixing column, and the fixing column is internally threaded, the at least one circuit board fixture comprises a screw.

13. The optical engine module according to claim 11 , wherein the optical engine module further comprises at least one adapter connected between at least one of the at least three fixtures and at least one of the at least three fixing structures, wherein the at least one adapter passes through the at least one circuit board perforation, so as to be connected with the at least one of the at least three fixing structures, such that the circuit board is fixed between the light valve and the heat dissipating module.

14. The optical engine module according to claim 13 , wherein the at least one adapter and the at least one circuit board fixture are positioned to be at two opposite sides of the perforation hole of the circuit board and to be symmetrically arranged.

15. The optical engine module according to claim 1 , further comprising:
at least one auxiliary element, wherein the at least one auxiliary element is sleeved onto the at least one adapter and is located between the at least one adapter and one of the at least three fixing structures.

16. The optical engine module according to claim 1 , wherein the at least one adapter comprises an adapter screw, the at least one adapter comprises an internally-threaded part and an externally-threaded rod part, the internally-threaded part securely connects with the at least three fixtures, and the externally-threaded rod part securely connects with the at least three fixing structures of the casing.

17. The optical engine module according to claim 16 , wherein the internally-threaded part and the externally-threaded rod part are integrally formed.

18. The optical engine module according to claim 1 , wherein lengths of the at least three fixtures are identical or different from one another.

19. The optical engine module according to claim 1 , wherein a pressure applied to the light valve is lower than 12 kg (117N).

Assignees

• Coretronic Corp

Inventors

• Chen Sung-Lien
• Liu Ming-Chen
• Tseng Tsan-Fu

Classifications

• G03B21/005

  Projectors using an electronic spatial light modulator but not peculiar thereto · CPC title

• G03B21/16 Primary

  Cooling; Preventing overheating · CPC title

• H05K7/2049

  Pressing means used to urge contact, e.g. springs · CPC title

• G03B21/145

  Housing details, e.g. position adjustments thereof · CPC title