Colorimeter employing primary filter mirrors

Details Colorimeter employing primary filter mirrors Colorimeter employing primary filter mirrors

1977-08-31

1979-04-24

Corbin, John K.

Harvesters

250226, 250228, 356407, 356236, G01J 346

Patent

active

041508980

ABSTRACT:
In a colorimeter including a light source, a first quantity of light is directed toward a color sample and from the color sample toward a single photoelectric receiving and measuring device which is capable of measuring amounts of primaries or tristimulus values in quantities of light. A first carriage has mounted thereon an X primary filter, a Y primary filter and a Z primary filter, and such first carriage is reciprocable so that a selected primary filter may be positioned in front of the single photoelectric device. Adjacent the light source is mounted a second carriage which supports thereon an X primary filter mirror, a Y primary filter mirror and a Z primary filter mirror. The second carriage is reciprocable to position adjacent the light source a selected primary filter mirror corresponding to that primary filter positioned adjacent the photoelectric device. A second quantity of light from the light source is directed toward the selected primary filter mirror which reflects and changes the spectral characteristics of the second quantity of light. This second quantity of light is then directed toward the color sample and through the selected primary filter to the photoelectric device. Thus, the photoelectric device simultaneously receives two quantities of light and measures a resultant amount of the selected primary or tristimulus value therefrom.

REFERENCES:
patent: 3838926 (1974-10-01), Kato et al.
patent: 3874799 (1975-04-01), Isaacs et al.
patent: 3998855 (1976-12-01), Suga
patent: 4025199 (1977-05-01), Okame
Trial Manufacture of Photoelectric Colorimeter using Optical Fibers; Ishikawa et al; Bull. Tokyo Deut. Coll. vol. 10, No. 4, pp. 191-197, Nov. 1969.
Science New Industrial Materials B-12 Organic Pigment, Kanehara Publishing Co. Ltd., Oct. 20, 1968 T. Kuwata.

Affiliated with

Also associated with

Rating

Colorimeter employing primary filter mirrors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Colorimeter employing primary filter mirrors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Colorimeter employing primary filter mirrors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1988820