The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2020
Filed:
May. 21, 2018
Applicant:
Spy Eye, Llc, Los Gatos, CA (US);
Inventors:
Brian Elliot Lemoff, Morgan Hill, CA (US);
George Michael Mihalakis, San Jose, CA (US);
Assignee:
Tectus Corporation, Saratoga, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); G02C 7/04 (2006.01); G02B 27/20 (2006.01); G02B 27/00 (2006.01); G02C 11/00 (2006.01); G03B 21/20 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 27/0093 (2013.01); G02B 27/0179 (2013.01); G02B 27/20 (2013.01); G02C 7/049 (2013.01); G02C 11/10 (2013.01); G03B 21/2033 (2013.01); G02B 2027/013 (2013.01); G02B 2027/0138 (2013.01); G02B 2027/0147 (2013.01); G02B 2027/0187 (2013.01); G02B 2027/0196 (2013.01);
Abstract
A variety of femtoprojector optical systems are described. Each of them can be made small enough to fit in a contact lens using plastic injection molding, diamond turning, photolithography and etching, or other techniques. Most of the systems include a solid transparent substrate with a curved primary mirror formed on one face, a secondary mirror formed on the opposite face, and an annular exit aperture located axially between the two mirrors The designs use light blocking, light-redirecting, absorbing coatings or other types of baffle structures to reduce stray light.