Laser diode focusing module for divergent light source

Details Laser diode focusing module for divergent light source Laser diode focusing module for divergent light source

G - Physics

06

K

88/109, 345/62

G06K 7/10 (2006.01) G02B 7/02 (2006.01) G02B 7/04 (2006.01)

Patent

CA 2001586

A focusing module for divergent light emitted from a source such as a laser diode. The focusing module consists of telescoping cylindrical members which focus by sliding the members along their central axis and permanently adhering the members to each other after focusing. The focusing lens is embodied in a lens assembly which prevents direct contact between the lens surface and the lens seat in one of the cylindrical members. Axial rotation between the cylindrical members, and between the base and the module is prevented by a series of notch and key elements. Consequently, the opening of the focusing module is fixed with respect to the cross-section of the light emitted, and can be shaped to match the cross section of the laser light beam thereby permitting maximum emission of focused light.

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