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:
Dec. 07, 2021
Filed:
May. 11, 2020
Fujifilm Corporation, Tokyo, JP;
Masanao Kawana, Saitama, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
There is provided a head-up display device which has a small size and of which the aberration is small and the range of an eye box in a vertical direction is wide. The head-up display deviceincludes a first optical system that includes at least one concave mirror arranged along an optical path of display light in order from an image display surface, and a second optical system that includes at least one concave mirror arranged along the optical path of the display light in order from the image display surfaceside. An intermediate image is formed between the first and second optical systems on the optical path, and the first optical system includes a double reflection mirror that reflects the display light twice on the optical path.