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:
May. 21, 2019
Filed:
Dec. 06, 2016
Tetsuya Ogata, Kanagawa, JP;
Tetsuya Ogata, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A display device is for displaying a virtual image in front of a driver of a vehicle. The display device includes a detecting unit that receives light surrounding the vehicle, and detects a brightness of the received light; a restricting unit that restricts an angle of the received light; a correcting unit that adjusts a luminance of a display image, according to the detected brightness of the light; and a displaying unit that superimposes and displays the display image on a field of vision of the driver as the virtual image, based on the adjusted luminance. The restricting unit includes two opening restricting elements arranged on a front side of the detecting unit, such that an angle θat which the detecting unit receives the light is restricted according to an angle θformed by light beams directed from the virtual image toward eyes of the driver.