Optical beam separation element, measuring apparatus and method of measuring
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United States of America Patent
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Aug 21, 2007
Grant Date -
Dec 21, 2006
app pub date -
Jun 17, 2005
filing date -
Jun 17, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optical beam separation element for a measuring apparatus includes a reflecting component with a reflecting surface and an aperture for forming an optical channel common to the transmission and the reception directions in the optical beam separation element. The reflecting surface of the reflecting component is positioned at an angle with respect to the optical channel. The aperture extends from the reflecting surface through the optical beam separation element allowing the optical beam to pass through the optical beam separation element to the optical channel in the transmission direction. The reflecting component separates the optical beams of the reception and the transmission directions.
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