Sensing light

Details Sensing light Sensing light

2007-09-04

2007-09-04

Epps, Georgia (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S221000, C250S224000, C250S226000, C345S156000, C353S074000

Reexamination Certificate

active

11116805

ABSTRACT:
A method and apparatus senses light reflected off of a surface of an object at angles with respect to incident light.

REFERENCES:
patent: 3253365 (1966-05-01), Calderon
patent: 4098940 (1978-07-01), Groh et al.
patent: 4381892 (1983-05-01), Someya
patent: 4792667 (1988-12-01), Chen
patent: 5072128 (1991-12-01), Hayano et al.
patent: 5243405 (1993-09-01), Tichenor et al.
patent: 5444263 (1995-08-01), Mastnak
patent: 5455906 (1995-10-01), Usuda
patent: 5659163 (1997-08-01), Lagan et al.
patent: 5659378 (1997-08-01), Gessel
patent: 5831601 (1998-11-01), Vogeley et al.
patent: 5874742 (1999-02-01), Romano
patent: 5892239 (1999-04-01), Nagase
patent: 5898153 (1999-04-01), Lagan et al.
patent: 5963280 (1999-10-01), Okuda et al.
patent: 5983120 (1999-11-01), Groner et al.
patent: 6006668 (1999-12-01), Rehmann
patent: 6020944 (2000-02-01), Hoshi
patent: 6104939 (2000-08-01), Groner et al.
patent: 6301044 (2001-10-01), Huber et al.
patent: 6470093 (2002-10-01), Liang
patent: 6473165 (2002-10-01), Coombs et al.
patent: 6597454 (2003-07-01), Berg et al.
patent: 6606080 (2003-08-01), Mukao
patent: 6656428 (2003-12-01), Clark et al.
patent: 6714288 (2004-03-01), Cohen
patent: 6731393 (2004-05-01), Currans et al.
patent: 6797366 (2004-09-01), Hanson et al.
patent: 6927844 (2005-08-01), Higuchi et al.
patent: 7103201 (2006-09-01), Scott et al.
patent: 2003/0053013 (2003-03-01), Tanaka
patent: 2003/0063772 (2003-04-01), Smith et al.
patent: 2004/0051862 (2004-03-01), Alcock et al.
patent: 2004/0222366 (2004-11-01), Frick
patent: 2005/0013644 (2005-01-01), Kim
patent: 2005/0024415 (2005-02-01), Claramunt et al.
patent: 2005/0187018 (2005-08-01), Takeda et al.
patent: 2005/0245302 (2005-11-01), Bathiche et al.
patent: 2006/0109199 (2006-05-01), Yee et al.
patent: 2006/0203208 (2006-09-01), Thielman et al.
A. Hochbaum, Y. Jiang, W. Niu,Bright Reflective Color Filters Based on Cholesteric Liquid Crystal Polymers, IDQW'99 (Proceedings of the Sixth International Display Workshops), 379, 1999 (3 pgs.).
A. Hochbaum, Y. Jiang,Cholesteric Color Filters—Optical Characteristics, Light Recycling and Brightness Enhancement, Society of Information Display (SID) Digest, 1063, 1999 (3 pgs.).
Y. Jiang, B. Wilson, A. Hochbaum, J. Carter,Novel Pigment Approaches in Optically Variable Security Inks Including Polarizing Cholesteric Liquid Crystal(CLC)Polymers, Optical Security and Counterfeit Deterrence Techniques IV, SPIE 4677, 2002 (8 pgs.).
Chelix Tech Corp.,Pigment Technology, www.chelix.com/products, 2002-2003 (I pg.).
Chelix Tech Corp.,Optical Components, www.chelix.com/products, 2002-2003 (2 pgs.).
Chelix Tech Corp.,How Pigment Technology Works, www.chelix.com/products, 2002-2003 (2 pgs.).
Chelix Tech Corp.,How Optical Components Work, www.chelix.com/products, 2002-2003 (1 pg.).
Chelix Tech Corp.,Technical Background, www.chelix.com/products, 2002-2003 (1 pg.).
Chelix Tech Corp.,How CLCs Work, www.chelix.com/products, 2002-2003 (2 pgs.).
Chelix Tech Corp.,Reflection&Polarization, www.chelix.com/products, 2002-2003 (2 pgs.).
Chelix Tech Corp.,Switchable CLCs, www.chelix.com/products, 2002-2003 (1 pg.).
Chelix Tech Corp.,A Short History of CLCs, www.chelix.com/products, 2002-2003 (2 pgs.).
Chelix Tech Corp.,Polarization, www.chelix.com/products, 2002-2003 (2 pgs.).

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