Multifunctional binary diffractive optical elements for structured light projectors

Omri Barlev*, Michael A. Golub

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

A set of diffractive optical elements for multiple-stripe structured illumination was designed, fabricated and characterized. Each of these elements with a single layer of binary surface relief combines functions of a diffractive lens, Gaussian-to-tophat beam shaper, and Dammann beam splitter. The optical investigations of laser light patterns at 20° fanout angle reveal up to 88% diffraction efficiency, high contrast, and nearly diffraction limited resolution. The developed technology has the potential for reducing complexity, number of optical components, power consumption and costs of structured light projectors in mobile and stationary 3D sensors.

Original languageEnglish
Pages (from-to)21092-21107
Number of pages16
JournalOptics Express
Volume26
Issue number16
DOIs
StatePublished - 6 Aug 2018

Funding

FundersFunder number
Office of the Chief Scientist, Ministry of Economy

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