Integrated Laser Alignment Aid Using Multiple Laser Spots Out Of One Single Laser
AssigneeCedes Safety & Automation AG
InventorsCarl Meinherz, Richard Casty
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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.
Claims20
An optical unit for an alignment system of a light curtain monitoring a protective field, the optical unit comprising:
- an optical processing element for generating a defined radiation pattern from a radiation emitted by an alignment radiation source, and
- at least one additional optical functional element being formed integrally with the optical processing element.
An alignment system for a light curtain monitoring a protective field, the light curtain comprising a first support element and a second support element, wherein the protective field is covered by radiation transmitted between the support elements,
- wherein the alignment system comprises at least one alignment radiation source being arranged on the first support element and at least one alignment radiation receiver arranged on the second support element for receiving the alignment radiation and for providing an alignment signal indicating a correct positioning of the two support elements with respect to each other,
- the alignment system further comprising at least one optical unit having an optical processing element for generating a defined pattern from the radiation emitted by the at least one alignment radiation source.
A light curtain for monitoring a protective field, the light curtain comprising
- a first support element and a second support element, wherein the protective field is covered by radiation transmitted between the support elements, and
- an alignment system for the light curtain, the light curtain comprising a first support element and a second support element, wherein the protective field is covered by radiation transmitted between the support elements,
- wherein the alignment system comprises at least one alignment radiation source being arranged on the first support element and at least one alignment radiation receiver arranged on the second support element for receiving the alignment radiation and for providing an alignment signal indicating a correct positioning of the two support elements with respect to each other,
- the alignment system further comprising at least one optical unit having an optical processing element for generating a defined pattern from the radiation emitted by the alignment radiation source.
Dependencies are inferred from the claim text.