Color sensor illumination source employing a lightpipe and multi

Details Color sensor illumination source employing a lightpipe and multi Color sensor illumination source employing a lightpipe and multi

1992-02-24

1994-04-12

McGraw, Vincent P.

Optics: measuring and testing

By shade or color

Trichromatic examination

250226, 356402, G01N 2127

Patent

active

053030370

ABSTRACT:
A light transmitting source for a color sensor utilizes a plurality of light emitting diodes emitting light in a predetermined narrow range of wavelength whose emitted light strikes a surface of a lightpipe whereupon the light is reflected and refracted and directed to a common reflection point and where each emitted light is attenuated by the reflection and refraction a desired amount and directed to illuminate an object whose color is to be measured.

REFERENCES:
patent: 4131367 (1978-12-01), French et al.
patent: 4464054 (1984-08-01), Karras et al.
patent: 4518259 (1985-05-01), Ward
patent: 4626679 (1986-12-01), Kuwayama et al.
patent: 4644153 (1987-02-01), Ida
patent: 4815816 (1989-03-01), Schneider
patent: 4838697 (1989-06-01), Kurandt
patent: 4917500 (1990-04-01), Lugos
patent: 5011261 (1991-04-01), Gordon
University Physics, 4th Edition, Sears et al, pp. 540-541, 1970.

Affiliated with

Also associated with

Rating

Color sensor illumination source employing a lightpipe and multi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color sensor illumination source employing a lightpipe and multi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color sensor illumination source employing a lightpipe and multi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2102977