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:
Jan. 28, 2020
Filed:
May. 02, 2017
Applicant:
Excelitas Technologies Corp., Waltham, MA (US);
Inventor:
Wei Li, South Barrington, IL (US);
Assignee:
Excelitas Technologies Corp., Waltham, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
F21V 14/00 (2018.01); F21V 5/04 (2006.01); F21V 23/04 (2006.01); A61B 90/30 (2016.01); F21W 131/20 (2006.01); F21V 7/06 (2006.01);
U.S. Cl.
CPC ...
F21V 14/003 (2013.01); A61B 90/30 (2016.02); F21V 5/04 (2013.01); F21V 14/00 (2013.01); F21V 23/0471 (2013.01); F21V 7/06 (2013.01); F21W 2131/20 (2013.01);
Abstract
A luminaire includes multiple light emitting cells. Each light emitting cell has a light source, and a focus-tunable lens (e.g., a liquid lens) associated with the light source. Each respective one of the light emitting cells is independently controllable relative to the one or more other light emitting cells. In a typical implementation, the control of each light emitting cell may involve, for example, controlling a surface of liquid in the corresponding liquid lens.