SBIR/STTR Research Award

A MULTI-ANGLE TRAFFIC SIGNAL PHOTOMETER

Award identifier f20aaad9bcb43698389ee39845bdc14c93acef41ef11328c05cee1fbbefd86e0Awarding agency Department of Transportation

Award amount

$224,000

Program and phase

SBIR · Phase II

Award year

1988

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Award details

Awarding agency
Department of Transportation
Branch
Not reported
Recipient company
Lighting Sciences Inc.
Proposal award date
Not reported
Contract end date
Not reported
UEI
Not reported
Solicitation number
Not reported
Topic code
Not reported

Research abstract

A PORTABLE PHOTOMETER IS PROPOSED CONSISTING OF A DEVICE WHICH IS PLACED OVER THE TRAFFIC SIGNAL LENS. AN INTERNAL OPTICAL SYSTEM ALLOWS MEASUREMENT OF THE SIGNAL CANDLEPOWER AT VARIOUS ANGLES OF INTEREST. THE INSTRUMENT ELECTRONICS AND LIGHT EMITTING DIODES PROVIDE A PASS/FAIL INDICATION FOREACH MEASUREMENT ANGLE, WITH THE GO/NO-GO SET POINT BEING AUTOMATICALLY ADJUSTED TO DIFFERENT CANDLEPOWER VALUES FOR RED, AMBER AND GREEN. USING AN EXTENDABLE ARM, THE METER MAY BE USED BY MAINTENANCE PERSONNEL AT GROUND LEVEL.

Technology keywords

Not reported

Agency intelligence

Department of Transportation

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