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Title:
METHOD AND APPARATUS FOR VERIFYING A COLOR OF AN LED IN A PRINTED CIRCUIT BOARD
Document Type and Number:
WIPO Patent Application WO2002039414
Kind Code:
A3
Abstract:
A method and apparatus for verifying a color of an LED in a printed circuit board include a sensor that permits passage of light from a target wavelength of the color and generates a resulting output voltage based upon an intensity of light of the target wavelength. A test system analyzes the resulting output voltage and provides a pass/fail signal to indicate whether the LED is the correct color and/or in operation.

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Inventors:
SCHMITT KEVIN
Application Number:
PCT/US2001/046922
Publication Date:
August 21, 2003
Filing Date:
November 05, 2001
Export Citation:
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Assignee:
TEST COACH CORP (US)
International Classes:
G01J3/51; H01L31/0216; (IPC1-7): G01R31/26; H01L33/00
Foreign References:
US5381103A1995-01-10
GB2364118A2002-01-16
EP0285493A21988-10-05
US4611116A1986-09-09
US5065007A1991-11-12
US4775640A1988-10-04
Other References:
PATENT ABSTRACTS OF JAPAN vol. 015, no. 348 (E - 1107) 4 September 1991 (1991-09-04)
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 11 3 January 2001 (2001-01-03)
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