Color measurement instrument

Details Color measurement instrument Color measurement instrument

2011-01-11

2011-01-11

Nguyen, Tu T (Department: 2886)

Optics: measuring and testing

By shade or color

Reexamination Certificate

active

07869041

ABSTRACT:
The color measurement instrument includes an illumination system and a sensing system. The illumination system is composed of a light emitting element and a light pipe. The light pipe has an incident surface at an illuminating end of the light emitting element and an ejected surface adjacent to a sensing platform of a sensing system. The sensing system includes a light collection device and a sensing platform for disposing a testing object. The light collection device includes an aperture stop for adjusting the shape of a light spot on a color sensor, a light collection lens set for detecting and projecting an image of a testing object on the sensing platform, a field stop for separating a light from an area, an uniform lens set for spreading the image on the field stop, and a color sensor for capturing and analyzing the color to adjust the brightness.

REFERENCES:
patent: 4974810 (1990-12-01), Fiske
patent: 2009/0180117 (2009-07-01), Clark et al.

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