LASER MODULE

1 . A laser module, comprising:

a substrate, having a surface and a base plane, wherein the base plane is parallel to the surface;

a laser diode, disposed on the surface; and

a diffuser, disposed above the laser diode, wherein an included angle is formed between the diffuser and the base plane, and the included angle is greater than 5 degrees.

2 . The laser module as claimed in claim 1 , wherein the included angle is lower than 70 degrees.

3 . The laser module as claimed in claim 1 , wherein the laser diode provides a light beam.

4 . The laser module as claimed in claim 3 , wherein the diffuser comprises a bias bias microstructure, a light-entering surface and a light-emitting surface, the bias microstructurebias bias microstructure is formed on the light-entering surface, and the light beam enters the diffuser via the light-entering surface, and leaves the diffuser via the light-emitting surface.

5 . The laser module as claimed in claim 1 , further comprising a reflector, wherein the reflector is disposed on the substrate and surrounding the laser diode, and the diffuser is disposed on the reflector and is supported by the reflector.

6 . The laser module as claimed in claim 5 , wherein the material of the reflector is selected from a group consisting of Liquid-Crystal Polymer, ceramic and copper.

7 . The laser module as claimed in claim 5 , wherein the reflector comprises a supporting portion and an inner surface, the supporting portion is formed on the inner surface, and the diffuser is supported by the supporting portion.

8 . The laser module as claimed in claim 5 , wherein the reflector is rectangular, circular, or cup-shaped.

9 . The laser module as claimed in claim 1 , wherein the material of the substrate is selected from a group consisting of ceramic, glass fiber (FR4), resin (BT) and solid molding materials (EMC).

10 . The laser module as claimed in claim 1 , wherein the material of the diffuser is selected from a group consisting of polymer and glass.