Illumination – Plural light sources – Particular wavelength
Patent
1991-11-27
1993-10-19
Cole, Richard R.
Illumination
Plural light sources
Particular wavelength
362800, 355228, 355 70, F21V 700, G03B 2754
Patent
active
052551717
ABSTRACT:
A light concentrator, preferably for use with a color optical scanning device includes a reflector (34) with parabolic reflecting walls (36). Green LEDs (22), red LEDs (24), and blue LEDs (26) are situated at the base of the reflector (34) and a diffuser (30) is attached to the opposite end thereof. An electric switch (32) controls the LED array. When an input page is scanned, the switch (32) activates one type of LEDs at a time. The reflector (34) concentrates the emitted light at the surface of the diffuser (30). The photodetector array of the xerographic device receives three monochromatic images which are then superimposed to provide a color image.
REFERENCES:
patent: 3760174 (1973-09-01), Boenning et al.
patent: 3923394 (1975-12-01), Frankiewkz
patent: 4013915 (1977-03-01), Dufft
patent: 4255042 (1981-03-01), Armitage, Jr. et al.
patent: 4826269 (1989-05-01), Streifer et al.
patent: 4963933 (1990-10-01), Brownlee
patent: 5001609 (1991-03-01), Gardner et al.
patent: 5032960 (1991-07-01), Katoh
Roland Winston, Scientific American, "Nonimaging Optics", Mar. 1991.
Cole Richard R.
Pressman D.
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