Led-array light source

Details Led-array light source Led-array light source

1995-08-17

1997-06-17

Gromada, Denise L.

Illumination

Plural light sources

With modifier

362300, 362301, 362200, 362241, 355 70, F21V 700

Patent

active

056391587

ABSTRACT:
An LED-array light source comprises an LED-array and a light-transmitting member disposed thereon. The light-transmitting member has a pair of opposed major surface for receiving and emitting output light emitted from the LED-array. A plurality of a first reflectors are formed on a light emitting surface of the light-transmitting member so as to partially reflect the output light toward a light-receiving surface of the light-transmitting member. A second light reflector is provided on the light receiving surface of the light-transmitting member so as to rereflect the light reflected from the first reflector to the emitting surface and thereby guiding the output light from the LED-array to an intermediate area between adjacent LEDs. Thus, it is possible to obtain a uniform linear light source with small number of LEDs.

REFERENCES:
patent: 2831453 (1958-04-01), Hardesty
patent: 3267598 (1966-08-01), Olesen et al.
patent: 4941072 (1990-07-01), Yasumoto et al.
patent: 5032960 (1991-07-01), Katoh
patent: 5128842 (1992-07-01), Kenmochi
patent: 5130761 (1992-07-01), Tanaka
patent: 5247429 (1993-09-01), Iwase et al.

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