LED reading light

Details LED reading light LED reading light

1999-12-14

2000-12-19

Philogene, Haissa

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Plural load device systems

315312, 315158, 315224, 362800, 362235, G05F 100

Patent

active

061619108

ABSTRACT:
An LED reading light assembly has an optical assembly, a power circuit board, a housing, and a control system. The optical assembly includes a holographic lens and an LED assembly comprising an LED circuit board and a plurality of LED's disposed on the outward facing side of the LED circuit board. The power circuit board provides a constant source of electric current to power the LED's. The housing includes a housing plate disposed behind the LED circuit board and a black anodized fin plate. The control system includes a temperature protection circuit monitoring the ambient temperature at the LED assembly during operation and adjusting the power supplied to the LED's to maintain the ambient temperature within a selected temperature range.

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patent: 5857767 (1999-01-01), Hochstein
patent: 6045240 (2000-04-01), Hochstein

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