Module of reflection mirrors of L-shape

Details Module of reflection mirrors of L-shape Module of reflection mirrors of L-shape

2011-06-14

2011-06-14

Cherry, Euncha P (Department: 2872)

Optical: systems and elements

Mirror

Plural mirrors or reflecting surfaces

C359S856000, C359S858000

Reissue Patent

active

RE042450

ABSTRACT:
A module of reflection mirrors of L-shape according to the invention, arranged in an optical chassis of scanner, is comprised of a first L-shaped mirror and a second L-shaped mirror. The recession portions for the second L-shaped mirror and the first L-shaped mirror are corresponded to each other in the space. After entering the module with a specific angle, an incident light is reflected several times between the two L-shape mirrors before it leaves the module with another angle again. Wherein, there are a first reflection zone and a second reflection zone at the recession portion of the first L-shaped mirror, and there are a third reflection zone and a fourth reflection zone at the recession portion of the second L-shaped mirror. After entering the module with a specific angle, the incident light passes through the second reflection zone, the third reflection zone, the fourth reflection zone, the second reflection zone, the first reflection zone, the fourth reflection zone, and the third reflection zone in sequence to get an appropriate optical length. Then, the reflection light leaves the module of reflection mirrors of L-shape with another angle that is different from the entering angle and is then focused into an image on a CCD by a lens.

REFERENCES:
patent: 5130856 (1992-07-01), Tichenor et al.
patent: 5223984 (1993-06-01), Schmid
patent: 5541771 (1996-07-01), Bohn
patent: 5930048 (1999-07-01), Kaneko
patent: 6481860 (2002-11-01), Chang
patent: 6486459 (2002-11-01), Taillie
patent: 6575600 (2003-06-01), Huang et al.

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