Collimator lens system

Details Collimator lens system Collimator lens system

1995-10-04

1997-01-21

Nguyen, Thong

Optical: systems and elements

Collimating of light beam

359362, 359785, G02B 2730, G02B 914

Patent

active

055964524

ABSTRACT:
A collimator lens system for collimating diverging light bundle emitted from a light source into a parallel light bundle includes first to third lens elements arranged in this order from the side of the parallel light bundle. The first lens to third elements are a positive double-convex lens, a negative lens concave to the side of the parallel light bundle and a positive lens convex to the side of the parallel light bundle, respectively. The following formulae (1) to (5) are satisfied

REFERENCES:
patent: 4203652 (1980-05-01), Hanada
patent: 4530574 (1985-07-01), Scifres et al.
English Abstract of the Japanese reference 58-200206.

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