Collimator for laser projector

Details Collimator for laser projector Collimator for laser projector

1997-03-11

2000-04-18

Spyrou, Cassandra

Optical: systems and elements

Mirror

Plural mirrors or reflecting surfaces

359850, 359366, 359389, G02B 508

Patent

active

060506938

ABSTRACT:
An improved laser projector collimator includes a plurality of specifically designed and arranged mirrors and lenses such that reflected light from a housing window for the laser projector is not directed onto a reflected light source sensor. In this way, the sensor only sees light reflected from a reference reflector. In addition, the specific arrangement of the lenses and mirrors is such that the overall length of the collimator housing is greatly reduced.

REFERENCES:
patent: 5000564 (1991-03-01), Ake
patent: 5017008 (1991-05-01), Akiyama
patent: 5191469 (1993-03-01), Margolis
patent: 5296963 (1994-03-01), Murakami et al.
patent: 5381258 (1995-01-01), Bordignon et al.

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