Optical: systems and elements – Optical modulator – Light wave temporal modulation
Reexamination Certificate
2005-04-19
2005-04-19
Epps, Georgia (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave temporal modulation
C359S237000
Reexamination Certificate
active
06882457
ABSTRACT:
A modulation quality detection system is disclosed for determining the modulation quality of an illumination modulator in an imaging system. The modulation quality detection system includes a modulator adjustment unit for providing a test pattern on the illumination modulator, a detector for receiving a modulated illumination field from the illumination modulator, a sampling unit for determining at least three sample values (A, B and C) for each of three areas of the modulated illumination field respectively, and an evaluation unit for determining whether the value(A+C2)-Bis greater than a threshold value.
REFERENCES:
patent: 5072239 (1991-12-01), Mitcham
patent: 5081597 (1992-01-01), Kowalski
patent: 5323002 (1994-06-01), Sampsell
patent: 5842088 (1998-11-01), Thompson
patent: 6188427 (2001-02-01), Anderson et al.
patent: 6369936 (2002-04-01), Moulin
patent: 6414706 (2002-07-01), Allen
patent: 6479811 (2002-11-01), Kruschwitz
patent: 6650353 (2003-11-01), Comeau
patent: 20020196245 (2002-12-01), Markis
patent: 20030043445 (2003-03-01), Miller et al.
patent: 437766 (1991-07-01), None
patent: 1069759 (2001-01-01), None
patent: 0791863 (2001-10-01), None
patent: 1293348 (2003-03-01), None
patent: WO 9115843 (1991-10-01), None
patent: WO 0069631 (2000-11-01), None
Comeau Bryan
Knox Jeffrey
Rombult Philip A.
Agfa Corporation
Epps Georgia
Hasan M.
Hilton William
Sabourin Robert A.
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