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.

Date of Patent:
Nov. 08, 2022

Filed:

Nov. 03, 2020
Applicant:

Leica Instruments (Singapore) Pte. Ltd., Singapore, SG;

Inventor:

George Themelis, Lindau, DE;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06T 11/00 (2006.01); A61B 90/30 (2016.01); G06T 7/90 (2017.01); G02B 27/01 (2006.01); G06T 5/00 (2006.01); G06T 7/00 (2017.01); H04N 5/445 (2011.01); H04N 5/57 (2006.01); A61B 90/00 (2016.01);
U.S. Cl.
CPC ...
G06T 11/001 (2013.01); A61B 90/30 (2016.02); A61B 90/361 (2016.02); G02B 27/0101 (2013.01); G06T 5/007 (2013.01); G06T 7/0012 (2013.01); G06T 7/90 (2017.01); A61B 2090/365 (2016.02); A61B 2090/373 (2016.02); G02B 2027/014 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0138 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/30004 (2013.01);
Abstract

Examples relate to an optical system and to a corresponding apparatus, method and computer program. The optical system comprises a display module for providing a visual overlay to be overlaid over an object in an augmented reality or mixed reality environment. The optical system comprises at least one sensor for sensing at least one optical property of the object. The optical system comprises a processing module configured to determine the at least one optical property of the object using the at least one sensor. The processing module is configured to determine a visual contrast between the visual overlay to be overlaid over the object and the object, as perceived within a field of view of the augmented reality or mixed reality environment, based on the at least one optical property of the object. The processing module is configured to selectively adjust an illumination of one of more portions of the field of view, or an optical attenuation of the one of more portions of the field of view, based on the determined visual contrast between the visual overlay to be overlaid over the object and the object.


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