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:
Sep. 15, 2026

Filed:

Nov. 26, 2025
Applicant:

Distance Technologies Oy, Helsinki, FI;

Inventors:

Mikko Juhola, Muurla, FI;

Pekka Äyräs, Helsinki, FI;

Olli Hakala, Helsinki, FI;

Timo Vuorenpää, Helsinki, FI;

Assignee:

Distance Technologies Oy, Helsinki, FI;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); B60K 35/23 (2024.01);
U.S. Cl.
CPC ...
G02B 27/0101 (2013.01); B60K 35/23 (2024.01); B60K 2360/23 (2024.01); B60K 2360/25 (2024.01); G02B 2027/012 (2013.01); G02B 2027/0123 (2013.01);
Abstract

A heads-up display system, a first reflective interface is arranged obliquely along an optical path of light rays emitted from a display. A second transparent interface is obliquely oriented with respect to the optical path of the light rays reflected from the first reflective interface. The light rays are incident on the second transparent interface from within a first optical medium, whereby the light rays undergo total internal reflection. A third semi-reflective interface is arranged obliquely along the optical path of the light rays reflected from the second transparent interface. The third semi-reflective interface is oriented to reflect the light rays toward an eyebox of the heads-up display system, while optically combining the light rays with a real-world light field.


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