Color sensing apparatus

Details Color sensing apparatus Color sensing apparatus

2008-05-13

2008-05-13

Evans, F. L. (Department: 2877)

Optics: measuring and testing

By shade or color

With color transmitting filter

C250S2140LS, C348S191000

Reexamination Certificate

active

11240917

ABSTRACT:
A colorimeter method and apparatus is described. The colorimeter includes a plurality of sensors/filter systems with non overlapping spectral responses, adequate for providing data capable of translation into standard coordinates system such as, CIE XYZ, CIE L*a*b*, or CIE Luv, as well as non-standard operable coordinate systems. The field of view of the colorimeter is chosen to closely track the response of the human eye using an optical path configured to select and limit the field of view in a manner that is insensitive to placement of the colorimeter on the source image. The optical path from the source image to the sensor is configured to select preferred light rays while rejecting undesirable light rays to maximize the signal
oise ratio. A rearward facing sensor channel is included to simultaneously measure ambient light impinging on the source image and feedback means to provide status and/or change of information.

REFERENCES:
patent: 3675984 (1972-07-01), Vulmiere et al.
patent: 4632559 (1986-12-01), Brunsting
patent: 4707138 (1987-11-01), Coatney
patent: 5459678 (1995-10-01), Feasey
patent: 5892585 (1999-04-01), Lianza et al.
patent: 6163377 (2000-12-01), Boles et al.
patent: 6459485 (2002-10-01), Tsurutani
patent: 6505775 (2003-01-01), Gu et al.
patent: 2002/0126286 (2002-09-01), Melnyk et al.
patent: 2002/0159065 (2002-10-01), Berstis
patent: 2004/0075032 (2004-04-01), Lutz
patent: 2004/0080749 (2004-04-01), Lutz et al.
patent: 2004/0104883 (2004-06-01), Drader
patent: 2004/0114144 (2004-06-01), Lutz et al.
patent: 0495569 (1992-07-01), None
patent: 1 233 610 (2002-08-01), None
European Search Report dated Jan. 19, 2006.
Partial European Search Report dated Mar. 13, 2007.
European Search Report dated Jul. 10, 2007.
European Search Report dated Jun. 20, 2006.

Affiliated with

Also associated with

Rating

Color sensing apparatus 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 sensing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color sensing apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3920046