patent · US8384997

Optical pattern projection

26 February 2013

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.

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Abstract

Optical apparatus includes first and second diffractive optical elements (DOEs) arranged in series to diffract an input beam of radiation. The first DOE is configured to apply to the input beam a pattern with a specified divergence angle, while the second DOE is configured to split the input beam into a matrix of output beams with a specified fan-out angle. The divergence and fan-out angles are chosen so as to project the radiation onto a region in space in multiple adjacent...

Provenance

Collection: Cited prior art

Original PDF: patentimages.storage.googleapis.com →
Filed: 2010-07-21
Source: Google Patents bibliographic record
Granted: 2013-02-26
Inventors: Alexander Shpunt; Benny Pesach; PrimeSense Ltd