Patent · US Active

Optical pattern projection

US8384997B2 · kind B2 · utility

108Cited by

19References

26Claims

0Family size

Assignee

Primesense Ltd · IL

Inventors

Alexander Shpunt · Nes Ziona, IL
Benny Pesach · Rosh HaAyin, IL

Key dates

Filing date	Jul 21, 2010
Grant date	Feb 26, 2013
Priority date	—
Expiry date	May 2, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG02B27/1086
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

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 instances of the pattern.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.