Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2007-09-18
2007-09-18
Epps, Georgia (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S2140AG, C385S012000, C385S014000, C356S442000
Reexamination Certificate
active
10918890
ABSTRACT:
The invention relates to a device to detect individual moving objects having very small dimensions. The device according to the invention comprises a photo electric sensor having at least one light beam transmitter and one light beam receiver, the objects that are to be measured moving through the optical path of the photo electric sensor, a first bundle of optical waveguides whose inputs are connected to the light beam transmitter and whose outputs are arranged in a row alongside each other, the light beams emitted by the outputs forming the optical path of the photo electric sensor, a second bundle of optical waveguides which are arranged in a row alongside each other whose inputs pick up the light beams emitted by the first bundle of optical waveguides and whose outputs are connected to the light beam receiver, and an evaluation unit which is coupled to the light beam transmitter and the light beam receiver and which registers a change in the received light intensity of the photo electric sensor produced by the objects passing through the optical path.
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U.S. Appl. No. 11/029,924, Martin et al, Device to Detect and/or Characterize Individual Moving Objects Having Very Small Dimensions, filed Jan. 5, 2005.
Arnold Martin
Heinzler Markus
Irmer Norbert
Schill Hubert
Baker & Daniels LLP
Epps Georgia
Minebea Co. Ltd.
Williams Don
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