Light source module

Inventors: Hsin-Liang Chen (Taoyuan City, TW); Sheng-Wen Hu (Taoyuan City, TW); Chun Ming Shen (Taoyuan City, TW)

Assignee: Qisda Corporation

G03B21/16 G03B21/2013 G03B21/2066

View Patent ↗

Loading inventors, assignments & file history…

Monitor This Case

Get email alerts when status or documents change.

Order Certified Copies

Most orders are placed with the USPTO same day — all within 24 business hours.

Order via The Patent Place →

Pre-filled with this patent's details

Quick Facts

Patent No.: US 12704773
App. No.: 18/604,356
Granted: Aug 11, 2026
Kind: B2

External Links

USPTO Patent Center↗ Full Patent PDF↗

Abstract

A light source module includes a casing, a first light source disposed in the casing to emit a first light, a first semi-transparent and semi-reflective mirror disposed in the casing and located on an optical path of the first light, and a heat dissipation member disposed in the casing and located on a second axis of the first semi-transparent and semi-reflective mirror. A first part of the first light passes through the first semi-transparent and semi-reflective mirror or is reflected by the first semi-transparent and semi-reflective mirror and then travels along a first axis. A second part of the first light is reflected by the first semi-transparent and semi-reflective mirror or passes through the first semi-transparent and semi-reflective mirror and then travels along a second axis. The first part is more than the second part. The second part of the first light is directed to the heat dissipation member.

Claims (22)

1 . A light source module comprising:

a casing;

a first light source disposed in the casing to emit a first light;

a first semi-transparent and semi-reflective mirror disposed in the casing and located on an optical path of the first light, wherein a first part of the first light passes through the first semi-transparent and semi-reflective mirror or is reflected by the first semi-transparent and semi-reflective mirror and then travels along a first axis, a second part of the first light is reflected by the first semi-transparent and semi-reflective mirror or passes through the first semi-transparent and semi-reflective mirror and then travels along a second axis, and the first part is more than the second part;

a heat dissipation member disposed in the casing and located on the second axis of the first semi-transparent and semi-reflective mirror, wherein the second part of the first light is directed to the heat dissipation member.

2 . The light source module according to claim 1 , wherein the casing comprises a supporting rib, the heat dissipation member abuts against the supporting rib and has an air layer between the casing.

3 . The light source module according to claim 1 , wherein the casing is a plastic casing.

4 . The light source module according to claim 1 further comprising a second light source to emit a second light, wherein the first semi-transparent and semi-reflective mirror is located between the second light source and the heat dissipation member, and is located on an optical path of the second light, a part of the second light is reflected by the first semi-transparent and semi-reflective mirror.

5 . The light source module according to claim 1 further comprising a third light source to emit a third light, wherein the first semi-transparent and semi-reflective mirror is located on an optical path of the third light, and a part of the third light is reflected by the first semi-transparent and semi-reflective mirror.

6 . The light source module according to claim 4 further comprising a second semi-transparent and semi-reflective mirror disposed in the casing, located on the second axis of the first semi-transparent and semi-reflective mirror and located on the optical path of the second light, wherein the first semi-transparent and semi-reflective mirror is located between the second semi-transparent and semi-reflective mirror and the heat dissipation member, and the part of the second light passes through the second semi-transparent and semi-reflective mirror.

7 . A light source module comprising:

a casing;

a first light source disposed in the casing to emit a first light;

a reflector disposed in the casing and located on the second axis of the first semi-transparent and semi-reflective mirror, wherein the second part of the first light is directed to the reflector, and is reflected back to the first semi-transparent and semi-reflective mirror by the reflector, and then passes through the first semi-transparent and semi-reflective mirror or is reflected by the first semi-transparent and semi-reflective mirror.

8 . The light source module according to claim 7 , wherein the casing comprises a supporting rib, the reflector abuts against the supporting rib and has an air layer between the casing.

9 . The light source module according to claim 7 , wherein the casing is a plastic casing.

10 . The light source module according to claim 7 further comprising a second light source to emit a second light, wherein the first semi-transparent and semi-reflective mirror is located between the second light source and the reflector, and is located on an optical path of the second light, a part of the second light is reflected by the first semi-transparent and semi-reflective mirror.

11 . The light source module according to claim 7 further comprising a third light source to emit a third light, wherein the first semi-transparent and semi-reflective mirror is located on an optical path of the third light, and a first part of the third light is reflected by the first semi-transparent and semi-reflective mirror.

12 . The light source module according to claim 10 further comprising a second semi-transparent and semi-reflective mirror disposed in the casing, located on the second axis of the first semi-transparent and semi-reflective mirror and located on the optical path of the second light, wherein the first semi-transparent and semi-reflective mirror is located between the second semi-transparent and semi-reflective mirror and the reflector, and the part of the second light passes through the second semi-transparent and semi-reflective mirror.

13 . The light source module according to claim 11 , wherein the first part of the third light is more than a second part of the third light, the second part of the third light passes through the first semi-transparent and semi-reflective mirror and is directed to the reflector, is reflected back to the first semi-transparent and semi-reflective mirror by the reflector and is reflected by the first semi-transparent and semi-reflective mirror to be directed toward a wavelength conversion device disposed at the first light source, and a wavelength is converted to a wavelength of the first light.

14 . The light source module according to claim 11 further comprising a second semi-transparent and semi-reflective mirror disposed in the casing, located on the second axis of the first semi-transparent and semi-reflective mirror and located on an optical path of the second light, wherein the first semi-transparent and semi-reflective mirror is located between the second semi-transparent and semi-reflective mirror and the reflector, the third light source is disposed on a third axis of the second semi-transparent and semi-reflective mirror, the third axis is parallel to the first axis, the second semi-transparent and semi-reflective mirror is located on the optical path of the third light, and the first part of the third light is sequentially reflected by the second semi-transparent and semi-reflective mirror and the first semi-transparent and semi-reflective mirror.