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:
Sep. 08, 2020
Filed:
Sep. 17, 2018
Applicant:
Carl Zeiss Meditec Ag, Jena, DE;
Inventors:
Assignee:
CARL ZEISS MEDITEC AG, Jena, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); G09F 9/30 (2006.01); G02C 7/10 (2006.01); G02C 7/12 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 27/01 (2013.01); G02B 27/0179 (2013.01); G09F 9/30 (2013.01); G02B 2027/0178 (2013.01); G02B 2027/0187 (2013.01); G02C 7/104 (2013.01); G02C 7/12 (2013.01);
Abstract
A screen () for an HMD () is provided, and may be designed as a display screen or as a projection screen. The screen () comprises a layer () of a material with a switchable degree of transparency and at least one further switchable layer () which, in dependence on the switching state, can assume at least two physical states, the physical states differently influencing at least one optical property of light passing through the switchable layer or reflected by it.