Light source unit

Details Light source unit Light source unit

2006-09-19

2006-09-19

Luebke, Renee (Department: 2875)

Illumination

Light source and modifier

With ventilating, cooling or heat insulating means

C362S092000, C362S230000, C315S115000

Reexamination Certificate

active

07108399

ABSTRACT:
A light source unit includes a substrate mounting a plurality of light emitting diodes (LED's) for irradiating beam to an object. The substrate is formed of a material having high heat conductivity and the unit includes a chip resistor mounted on the substrate and heat generation controller for heating the substrate with heat generated in the chip resistor upon supply of power to the chip resistor. The plural LED's are arranged in the form of an array on the substrate and a plurality of the chip resistors are arranged linearly along the array of LED's.

REFERENCES:
patent: 4896168 (1990-01-01), Newman et al.
patent: 5150016 (1992-09-01), Sawase et al.
patent: 5870128 (1999-02-01), Yazawa et al.
patent: 2004/0120156 (2004-06-01), Ryan
patent: 2001-045225 (2001-02-01), None
patent: 2002-281240 (2002-09-01), None

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