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:
Nov. 21, 2017
Filed:
Jul. 30, 2014
Denso Corporation, Kariya, Aichi-pref., JP;
Toshiki Ishikawa, Kariya, JP;
DENSO CORPORATION, Kariya, Aichi, JP;
Abstract
In a vehicle head-up display device that reflects a display light transmitted through a dust-proof cover on a windshield or a combiner, and viewably displays display information as a virtual image from a driver's seat of a vehicle, the dust-proof cover has a light transmissive property produced by being rolled, when a line between a first point a first end side of the display in a longitudinal direction of the display and a second point being at the same height as the first point in a second end side opposite to the first end side is a longitudinal axis, and a luminance of a virtual image is adjusted by adjusting an angle between a rolling direction of a resin sheet used for the dust-proof cover and a virtual image longitudinal axis, which corresponds to the longitudinal axis, of a virtual image of the display reflected by the reflector. As a result, a polarization state of the display light is changed to enable the luminance of the virtual image to be adjusted without any increase in the number of parts and a body size.