Optical-axis directional indicating apparatus for optical...

Details Optical-axis directional indicating apparatus for optical... Optical-axis directional indicating apparatus for optical...

2007-07-03

2007-07-03

Vanderpuye, Kenneth (Department: 2613)

Optical communications

Optical communication over freee space

Transmitter and receiver

C398S131000, C398S129000

Reexamination Certificate

active

10776660

ABSTRACT:
An optical-axis directional indicating apparatus for optical communication includes a photoreceptor having a light-receiving surface and a plurality of optical receiving elements arranged on the surface in a first direction and a second direction orthogonal to the first direction, to receive a transmitted light beam, a detector to detect levels of the light beam received at the optical receiving elements, a plurality of display elements arranged in the first and second directions so as to correspond to the optical receiving elements of the photoreceptor, and a switch circuit to selectively turn on or off the display elements in accordance with the levels of the light beam detected by the detector, to indicate whether or not an optical axis of the light beam is deviated in the first and/or the second direction on the light-receiving surface of the photoreceptor.

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Chinese Office Action dated Mar. 3, 2006 in Application No. 200410005274.6, and attached English Translation thereof.

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