Collimating lens structures

Details Collimating lens structures Collimating lens structures

2005-01-31

2009-02-24

Choi, William C (Department: 2873)

Optical: systems and elements

Collimating of light beam

C359S618000, C359S648000

Reexamination Certificate

active

07495837

ABSTRACT:
An optic element receives an input light beam with a first beam angle and an axis. The optic element includes a first surface that receives the input light beam and generates an expanded light beam with a second beam angle that is greater than or equal to the first beam angle. The optic element includes a second surface that receives the expanded light beam and generates an output light beam that is either substantially collimated or near collimated. The output light beam is tilted a predetermined degrees with respect to the axis of the input light beam.

REFERENCES:
patent: 5414551 (1995-05-01), Okazaki et al.
patent: 5572367 (1996-11-01), Jung et al.
patent: 5917105 (1999-06-01), Xu et al.
patent: 6181476 (2001-01-01), Medvedev et al.
patent: 6356395 (2002-03-01), Tawa et al.

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