Illumination – Plural light sources – Particular wavelength
Reexamination Certificate
2006-04-11
2006-04-11
Cariaso, Alan (Department: 2875)
Illumination
Plural light sources
Particular wavelength
C362S293000
Reexamination Certificate
active
07025474
ABSTRACT:
A dual mode or multimode backlight containing LEDs as a light source. The backlight has light cavity containing a reflective material. The cavity has an opening to allow light to be directed to a display source such as a liquid crystal display (LCD). Two sets of LEDs are provided, one set for day mode and one set for night mode. The night mode LEDs is fitted with an NVIS filter. The day mode LEDs is fitted with a filter that suppresses the phosphorescence from the day mode LEDs. The filter suppress the IR energy and allows maximum luminance from the day mode LEDs. During night mode operation, the backlight is flooded with light. Filtered light from the NVIS LED's would impinge on the day mode LED's causing them to phosphoresce. The filter over the day mode LEDs removes the infrared energy from the phosphorescent light emitted from the day mode LEDs.
REFERENCES:
patent: 4722028 (1988-01-01), Brannon et al.
patent: 4934793 (1990-06-01), Klein
patent: 5143433 (1992-09-01), Farrell
patent: 5262880 (1993-11-01), Abileah
patent: 5479275 (1995-12-01), Abileah
patent: 5982090 (1999-11-01), Kalmanash
patent: 5986730 (1999-11-01), Hansen et al.
patent: 6039451 (2000-03-01), Grave
patent: 6111622 (2000-08-01), Abileah
patent: 6285425 (2001-09-01), Akins et al.
patent: 6285426 (2001-09-01), Akins et al.
patent: 6419372 (2002-07-01), Shaw et al.
patent: 6758586 (2004-07-01), Wilhem et al.
patent: 6789921 (2004-09-01), Deloy et al.
patent: 6842204 (2005-01-01), Johnson
patent: 2003/0012035 (2003-01-01), Bernard
patent: 0 615 151 (1994-09-01), None
patent: 2 820 235 (2002-08-01), None
International Search Report PCT/US2004/036514, Feb. 14, 2005.
Campbell William T.
Grossman Steven A.
Maner Randy M.
Armijo Dennis F.
Cariaso Alan
Honeywell International , Inc.
Luther Kurt
Rehm Adam C.
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