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:
Dec. 26, 2017
Filed:
Dec. 04, 2012
Applicants:
Sri Rama Prasanna Pavani, Palo Alto, CA (US);
Brian P. Mccall, Houston, TX (US);
Inventors:
Sri Rama Prasanna Pavani, Palo Alto, CA (US);
Brian P. McCall, Houston, TX (US);
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 11/00 (2006.01); G02B 13/00 (2006.01); G02B 15/00 (2006.01); G02B 17/00 (2006.01); G02B 25/00 (2006.01); G02B 3/00 (2006.01); G02B 7/00 (2006.01); G02B 9/00 (2006.01); G02B 27/10 (2006.01); B29D 11/00 (2006.01);
U.S. Cl.
CPC ...
G02B 3/0012 (2013.01); B29D 11/00365 (2013.01);
Abstract
A method for fabricating millimeter and sub-millimeter size lenses using a high viscosity curable liquid, such as epoxy. The method comprises dispensing a predetermined volume of the curable liquid onto a substrate. The curable liquid preferably has a viscosity higher than 100 cps. Additionally, to reduce spherical aberration, the curable liquid can be cured upside down to leverage the effects of gravity.