Optics: measuring and testing – By shade or color – Trichromatic examination
Reexamination Certificate
2006-06-20
2006-06-20
Evans, F. L. (Department: 2877)
Optics: measuring and testing
By shade or color
Trichromatic examination
C250S226000
Reexamination Certificate
active
07064832
ABSTRACT:
A test module used to verify the correct placement of light-emitting devices on electronic assemblies, by performing color and luminous intensity tests on these devices. The module includes one or a number of color sensitive photodiodes, which when exposed to light coupled from the emitter under test, will accurately measure the intensity, as well as the true color emitted by the device. The test module outputs analog signals, one directly proportional to the intensity, a second voltage proportional to the spectral wavelength of the device under test.
REFERENCES:
patent: 3215843 (1965-11-01), Neil
patent: 3484614 (1969-12-01), Tobey et al.
patent: 3511999 (1970-05-01), Pelenc
patent: 3609450 (1971-09-01), Hart
patent: 3681654 (1972-08-01), Quinn
patent: 3963920 (1976-06-01), Palmer
patent: 3996494 (1976-12-01), Suga
patent: 4234820 (1980-11-01), Widmayer
patent: 4275294 (1981-06-01), Davidson
patent: 4427881 (1984-01-01), Ruell
patent: 4529875 (1985-07-01), Brogardh et al.
patent: 4544843 (1985-10-01), Kern et al.
patent: 4775640 (1988-10-01), Chan
patent: 4808815 (1989-02-01), Langley
patent: 6384612 (2002-05-01), Freund et al.
patent: 6490037 (2002-12-01), Schmitt
patent: 0628830 (1994-12-01), None
patent: 1260877 (2002-11-01), None
patent: 03133183 (1991-06-01), None
patent: 2004045282 (2004-02-01), None
patent: WO 01/84901 (2001-11-01), None
patent: WO 02/090909 (2002-11-01), None
Copy of European Search Report dated May 27, 2004 (2 pages); EPO Appln. No. 04090056.
Patent Abstract of Japan for Publication No. 2000-221113; date of publication Aug. 11, 2000; Inventor Morimoto Teruo, et al.
Patent Abstracts of Japan, Publication No. 03133183 A; date of publication Jun. 6, 1991.
Patent Abstracts of Japan; Publication No. 2004045282 A; date of publication Feb. 12, 2004.
Christie Parker & Hale LLP
Delaware Capital Formation Inc.
Evans F. L.
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