Integrated laser alignment aid using multiple laser spots out of one single laser
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United States of America Patent
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Dec 22, 2015
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app pub date -
May 24, 2013
filing date -
Feb 2, 2012
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Abstract
The present invention relates to light curtains, in particular safety light curtains, for monitoring a protective field. Furthermore, the present invention relates to optical units which are part of such a light curtain. An optical unit for an alignment system of a light curtain monitoring a protective field comprises an optical processing element for generating a defined radiation pattern from the radiation emitted by an alignment radiation source, and at least one additional optical functional element being formed integrally with the optical processing element.
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