Reflectometer

Details Reflectometer Reflectometer

2005-10-04

2005-10-04

Evans, F. L. (Department: 2877)

Optics: measuring and testing

By shade or color

With color determination by light intensity comparison

C356S402000, C356S407000, C250S226000

Reexamination Certificate

active

06952263

ABSTRACT:
The present invention comprises reflectometer for detecting and measuring subtle changes in color and shade of color. In general, a pulsating light source illuminates a target surface which possesses a certain color and shade of color. An optical detection circuit synchronously detects light that is reflected from the target surface and generates an output signal whose voltage is indicative of the color and shade of the target surface. This voltage is then processed to make an evaluation and identification of any measurable quantity or quality that is represented by the detected color or shade of color.

REFERENCES:
patent: 3910701 (1975-10-01), Henderson et al.
patent: 4163950 (1979-08-01), Damm et al.
patent: 4723554 (1988-02-01), Oman et al.
patent: 4781195 (1988-11-01), Martin
patent: 4821733 (1989-04-01), Peck
patent: 4935346 (1990-06-01), Phillips et al.
patent: 5049487 (1991-09-01), Phillips et al.
patent: 5059394 (1991-10-01), Phillips et al.
patent: 5174963 (1992-12-01), Fuller et al.
patent: 5179005 (1993-01-01), Phillips et al.
patent: 5179288 (1993-01-01), Miffitt et al.
patent: 5239295 (1993-08-01), DeLuca et al.
patent: 5304468 (1994-04-01), Phillips et al.
patent: 5426032 (1995-06-01), Phillips et al.
patent: 5563042 (1996-10-01), Phillips et al.
patent: 5843692 (1998-12-01), Phillips et al.
patent: 5900943 (1999-05-01), Owen
patent: 6157454 (2000-12-01), Wagner et al.
patent: 0 426 967 (1990-09-01), None
patent: 0 477 417 (1990-09-01), None
patent: WO 83/00926 (1983-03-01), None

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