US 12,140,755 B2
Projection device and head-up display
Hiroki Hara, Osaka (JP); Yosuke Asai, Osaka (JP); Keiji Sugiyama, Kyoto (JP); and Yuji Takase, Osaka (JP)
Assigned to PANASONIC AUTOMOTIVE SYSTEMS CO., LTD., Kanagawa (JP)
Filed by PANASONIC AUTOMOTIVE SYSTEMS CO., LTD., Kanagawa (JP)
Filed on Aug. 15, 2023, as Appl. No. 18/234,188.
Application 18/234,188 is a continuation of application No. 17/613,261, granted, now 11,768,371, previously published as PCT/JP2020/018764, filed on May 11, 2020.
Claims priority of application No. 2019-101313 (JP), filed on May 30, 2019.
Prior Publication US 2023/0384589 A1, Nov. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 5/00 (2006.01); B60K 35/00 (2006.01); G02B 27/01 (2006.01); H04N 9/31 (2006.01)
CPC G02B 27/0101 (2013.01) [B60K 35/00 (2013.01); H04N 9/3141 (2013.01); G02B 2027/0118 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A projection device mounted on a vehicle, comprising:
a plurality of light sources arranged in a first direction;
a display element in which light from the light source incident and emits image information;
a lens that guides the optical path of light emitted from each of a plurality of light sources in the direction of the incident plane of the display element; and
a first reflective optical member that deflects the light emitted from the lens toward the display element,
wherein the first reflective optical member has a shape that deflects light emitted from the lens so as to be incident on an arbitrary point on the incident surface of the display element at a predetermined reference incident angle.