US Patent 9239467 Optical pattern projection

Patent 9239467 was granted and assigned to Apple (company) on January, 2016 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Apple (company)

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

9239467

Date of Patent

January 19, 2016

Patent Application Number

13734980

Date Filed

January 6, 2013

Patent Citations Received

‌

US Patent 11762134 Diffractive optical element

Patent Primary Examiner

‌

Audrey Y Chang

Patent 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.

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