Apparatus for providing even, focused illumination of a...

Details Apparatus for providing even, focused illumination of a... Apparatus for providing even, focused illumination of a...

2009-03-31

2011-10-18

Ton, Anabel M (Department: 2875)

Illumination

Light fiber, rod, or pipe

C362S555000, C362S610000, C362S612000, C358S473000

Reexamination Certificate

active

08038335

ABSTRACT:
The present invention discloses improvements on an apparatus for reading a document by illuminating it with a beam of focused light, directing the reflected light to an array of optical sensors, digitalizing the resulting image and storing it for future use. It discloses several aspects of the light pipe element aimed at improving the illumination of the targeted area for the aforementioned purpose, including the shape of the light pipe ends, the use of a refracting coat on the back of the light pipe and the shaping of the light pipe front surface to focus the light rays on the target surface.

REFERENCES:
patent: 5471371 (1995-11-01), Koppolu et al.
patent: 6441928 (2002-08-01), Tuli et al.
patent: 6527411 (2003-03-01), Sayers
patent: 6607297 (2003-08-01), Egawa
patent: 7029156 (2006-04-01), Suehiro et al.
patent: 7273300 (2007-09-01), Mrakovich
patent: 7478941 (2009-01-01), Wu et al.

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