patent · US8829406
Optical projector with beam monitor including sensing intensity of beam pattern not projected toward an object
9 September 2014
Indexed reference — no copy held
This patent is cited by material in the archive, so it is indexed here by number, title and inventor. The archive holds no copy of its text.
Abstract
Optical apparatus includes a device package, with a radiation source contained in the package and configured to emit a beam of coherent radiation. A diffractive optical element (DOE) is mounted in the package so as to receive and diffract the radiation from the radiation source into a predefined pattern comprising multiple diffraction orders. An optical detector is positioned in the package so as to receive and sense an intensity of a selected diffraction order of the DOE.
Provenance
- Collection
- Cited prior art
- Original PDF
- patentimages.storage.googleapis.com →
- Filed
- 2013-07-08
- Source
- Google Patents bibliographic record
- Granted
- 2014-09-09
- Inventors
- Ronen Akerman; Dudu Voschina; Niv Galezer; Yoed Arieli; Tomer Segev; Zafrir Mor; Alexander Shpunt; PrimeSense Ltd