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:
Aug. 20, 2024

Filed:

Jan. 31, 2020
Applicant:

Carl Zeiss Jena Gmbh, Jena, DE;

Inventors:

Marc Junghans, Jena, DE;

Roman Kleindienst, Weimar, DE;

Christoph Erler, Jena, DE;

Andreas Luetz, Dornburg-Camburg, DE;

Petr Vojtisek, Jena, DE;

Daniel Thomae, Jena, DE;

Mirko Riethmueller, Leipzig, DE;

Matthias Burkhardt, Eichenberg, DE;

Alexandre Gatto, Bergisch Gladbach, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/34 (2006.01); G02B 6/28 (2006.01); G02B 6/293 (2006.01); G02B 27/01 (2006.01);
U.S. Cl.
CPC ...
G02B 6/34 (2013.01); G02B 6/2848 (2013.01); G02B 6/29316 (2013.01); G02B 27/0103 (2013.01);
Abstract

A screen includes a transparent base body with a front face and a rear face, and an image sensor. The base body includes a coupling-in region and a coupling-out region at a distance therefrom in a first direction. The coupling-in region includes a diffractive structure which deflects only part of the radiation incident on the front face and originating from an object to be detected, such that the deflected part is propagated as coupled-in radiation in the base body by reflection, until it reaches the coupling-out region and is incident on said coupling-out region, and the coupling-out region deflects at least part of said incident coupled-in radiation, such that the deflected part exits the base body via the front face or the rear face and is incident on the image sensor.


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