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:
Jun. 23, 2026
Filed:
Mar. 11, 2025
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Chihiro Takahashi, Tokyo, JP;
Yoshihiko Taira, Tokyo, JP;
Mitsunori Nakamura, Tokyo, JP;
Tomoyuki Hayasaki, Tokyo, JP;
Yoshiyuki Yahagi, Tokyo, JP;
NIPPON KAYAKU KABUSHIKI KAISHA, Tokyo, JP;
Abstract
The present disclosure relates to a head-up display system including image display unit for emitting display light showing a display image, and functional glass on which the image cast from the image display unit is projected. The functional glass includes an optical functional layer exhibiting reverse wavelength dispersibility, the functional glass is disposed at an angle α of 20° or more and 70° or less, and a reflected image is visually confirmed within visual angles of Brewster angle β−(90°−the angle α)±15° to the functional glass.