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:
Jun. 04, 2019
Filed:
Sep. 11, 2016
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Robert Y. Cao, Cupertino, CA (US);
Craig C. Leong, Cupertino, CA (US);
Bradford J. Zercoe, Cupertino, CA (US);
Dinesh C. Mathew, Cupertino, CA (US);
Mahesh Krishnamurthi, Cupertino, CA (US);
Jun Qi, Cupertino, CA (US);
Rong Liu, Cupertino, CA (US);
Victor H. Yin, Cupertino, CA (US);
Assignee:
APPLE INC., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); G06F 1/16 (2006.01); H01H 13/02 (2006.01); H01H 13/14 (2006.01); H01H 13/83 (2006.01); H01H 13/7065 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0061 (2013.01); G02B 6/0038 (2013.01); G02B 6/0045 (2013.01); G06F 1/1662 (2013.01); H01H 13/023 (2013.01); H01H 13/14 (2013.01); H01H 13/7065 (2013.01); H01H 13/83 (2013.01); H01H 2219/056 (2013.01); H01H 2219/06 (2013.01); H01H 2219/062 (2013.01); H01H 2219/0622 (2013.01);
Abstract
Described is an illumination structure for a key of a keyboard. The illumination structure is used to uniformly illuminate the key and any glyphs that are present on the key. The illumination structure includes a light guide having various features that increase total internal reflection and also illuminate the glyphs of the key.