Optoelectronic sensor

Details Optoelectronic sensor Optoelectronic sensor

2006-06-28

2008-09-23

Luu, Thanh X (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C359S623000, C362S613000

Reexamination Certificate

active

07427743

ABSTRACT:
An optoelectronic sensor has a receiving optics and a lighting arrangement in the vicinity of the receiving optics. A plurality of light emitting diodes (LED) are linearly arranged relative to each other, and they illuminate a light receiving area. Anamorphic imaging optics for each LED include an optical condenser element with a planar side facing the LED and an oppositely facing non-planar, e.g. curved, side. A cylindrical lens is associated with the condenser elements. The optical condenser elements of the arrangement are of like construction. The LEDs are axially offset relative to the optical axis of associated condenser elements as a function of the distance between the LEDs and the receiving optics.

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