Eye-safe laser navigation sensor

Details Eye-safe laser navigation sensor Eye-safe laser navigation sensor

2006-05-12

2010-10-05

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular component circuitry

For driving or controlling laser

C372S038010, C372S038070

Reexamination Certificate

active

07809035

ABSTRACT:
The apparatus includes a diode laser and a current source interconnected with the diode laser. Two independent circuits in the current source are configured to limit current flowing through the diode laser. A first current limiter circuit configured to limit a current output from the current source to an anode of the diode laser, and an independent second current limiter circuit configured to limit a current return from a cathode of the diode laser to the current source so that laser output power does not exceed a specified maximum regardless of a single fault in either the first or second current limiter circuits.

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