US 11,899,218 B2
Head-up display and movable body
Kaoru Kusafuka, Tokyo (JP); Mitsuhiro Murata, Yao (JP); and Sunao Hashimoto, Yokohama (JP)
Assigned to KYOCERA CORPORATION, Kyoto (JP)
Appl. No. 17/774,879
Filed by KYOCERA CORPORATION, Kyoto (JP)
PCT Filed Nov. 12, 2020, PCT No. PCT/JP2020/042319
§ 371(c)(1), (2) Date May 6, 2022,
PCT Pub. No. WO2021/095817, PCT Pub. Date May 20, 2021.
Claims priority of application No. 2019-205777 (JP), filed on Nov. 13, 2019.
Prior Publication US 2023/0019904 A1, Jan. 19, 2023
Int. Cl. G02B 27/01 (2006.01); G02B 30/26 (2020.01); G06F 3/01 (2006.01); G03B 35/24 (2021.01); G02B 30/31 (2020.01); B60K 35/00 (2006.01)
CPC G02B 27/0179 (2013.01) [G02B 27/0101 (2013.01); G02B 30/26 (2020.01); G02B 30/31 (2020.01); G03B 35/24 (2013.01); G06F 3/013 (2013.01); B60K 35/00 (2013.01); B60K 2370/1529 (2019.05); B60K 2370/31 (2019.05); B60K 2370/52 (2019.05); G02B 2027/0134 (2013.01); G02B 2027/0181 (2013.01); G02B 2027/0183 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A head-up display mounted on a movable body, comprising:
a display device which displays a first image and emits image light from the first image in a first direction;
a first optical member located in the first direction from the display device;
a second optical member located between the display device and the first optical member in the first direction;
a detector which detects positions of eyes of a user in the movable body;
an input part which is connected to the detector and receives inputs of positional information of detected positions of the eyes and a speed of the movable body driven by the user; and
a controller which is connected to the input part and changes, in accordance with the positional information, a position at which a virtual image of the first image appears,
the second optical member reflecting the first image in a first plane direction and a second plane direction and displaying a virtual image of the first image in a space between the first optical member and the user,
the display device displaying a second image and emitting image light from the second image in the first direction,
the first optical member causing specular reflection of the second image and displaying a virtual image of the second image in a space opposite to, across the first optical member, the space in which the virtual image of the first image appears,
in response to a change in the speed, the controller not changing the position at which the virtual image of the first image appears and changing the position at which the virtual image of the second image appears.