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:
Jun. 23, 2026

Filed:

Aug. 08, 2022
Applicant:

Maxell, Ltd., Kyoto, JP;

Inventors:

Koji Hirata, Kyoto, JP;

Koji Fujita, Kyoto, JP;

Toshinori Sugiyama, Kyoto, JP;

Assignee:

MAXELL, LTD., Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 13/322 (2018.01); G01S 17/08 (2006.01); G01S 17/86 (2020.01); G02B 30/56 (2020.01); H04N 13/398 (2018.01);
U.S. Cl.
CPC ...
H04N 13/322 (2018.05); G01S 17/08 (2013.01); G01S 17/86 (2020.01); G02B 30/56 (2020.01); H04N 13/398 (2018.05);
Abstract

An air floating video display system contributes to Sustainable Development Goals 3, 9 and 11. The air floating video display system includes a video display apparatus configured to display a video, a light source apparatus, and a retroreflector configured to reflect a video light from the video display apparatus to display an air floating video that is a real image in air by the reflected light. The light source apparatus includes optical means configured to reduce a divergence angle of a light from a point or surface light source and a reflection surface configured to reflect the light from the light source to propagate it to the video display apparatus, and a part of the divergence angle of the light flux emitted from the light source is adjusted by a shape and surface roughness of the reflection surface provided on the light source.


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