Device and method for optoelectronically identifying the...

Details Device and method for optoelectronically identifying the... Device and method for optoelectronically identifying the...

2007-10-09

2007-10-09

Doan, Jennifer (Department: 2874)

Optical waveguides

Optical waveguide sensor

C385S094000

Reexamination Certificate

active

10507453

ABSTRACT:
The invention relates to a device and a method for optoelectronically identifying the displacement and/or position of an object. According to the method, a transmitter element emits light, which is received by at least one receiver element and the light emitted from the transmitter element is scattered by an object, wherein an optical guide is provided between the transmitter element and the receiver element. This aim of the invention is to fulfill the prerequisites for a key construction, which can be operated below a sealed surface. To achieve this, the optical guide includes light coupling means for coupling in the illumination that has been scattered by the object and previously emitted by the optical guide.

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patent: 2002/0020808 (2002-02-01), Kado
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International Search Report for International Application No. PCT/EP03/02452 dated Jan. 7, 2003.
English Abstract of DE19851505, 2000.
English Abstract of DE3306941, 1984.
English Abstract of FR2693859, 1994.

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