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公开(公告)号：US10775622B2
公开(公告)日：2020-09-15
申请号：US16563168
申请日：2019-09-06
Applicant: DENSO CORPORATION
Inventor： Takashi Takazawa , Taizo Miyato , Yuichiro Hayakawa , Kazuyuki Ishihara , Makoto Sakai
Abstract: A head-up display device includes: a screen having a display area to which light is projected to image a virtual image; an outer housing that holds the screen; a scanner unit having a scanner oscillating about a virtual scanning axis to draw a display image in the display area by scanning of the scanner; and a scanner housing held by the outer housing and holding the scanner unit. The outer housing and the scanner housing have an adjustment structure to enable an adjustment of an emission direction of light emitted from the scanner housing at least around the scanning axis by a relative rotation of the scanner housing with respect to the outer housing about a virtual adjustment axis intersecting the scanner unit.
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公开(公告)号：US10942352B2
公开(公告)日：2021-03-09
申请号：US16070530
申请日：2016-10-21
Applicant: DENSO CORPORATION
Inventor： Taizo Miyato , Kazuyuki Ishihara , Kazuhisa Onda
Abstract: A laser projection portion projects multiple laser light fluxes having different wavelengths and superimposed one on another. A scan portion scans the laser light fluxes from the laser projection portion. The image is drawn on a screen member upon incidence of the laser light fluxes scanned by the scan portion. A refraction element portion having positive refractive power is located on a light path between the scan portion and the screen member and adjusts an incident angle of the laser light fluxes to the screen member by refraction. The refraction element portion includes a positive lens part and a negative lens part. The positive lens part has positive refractive power. The negative lens part is made of a medium with a higher dispersing quality than a medium forming the positive lens part and has negative refractive power.
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