US 11,899,201 B2
Head-up display for vehicles and head-up display system for vehicles
Takashi Inoue, Shizuoka (JP); Noriko Sato, Shizuoka (JP); and Kouhei Murata, Shizuoka (JP)
Assigned to KOITO MANUFACTURING CO., LTD., Tokyo (JP)
Appl. No. 17/439,250
Filed by KOITO MANUFACTURING CO., LTD., Tokyo (JP)
PCT Filed Mar. 16, 2020, PCT No. PCT/JP2020/011556
§ 371(c)(1), (2) Date Sep. 14, 2021,
PCT Pub. No. WO2020/189646, PCT Pub. Date Sep. 24, 2020.
Claims priority of application No. 2019-051485 (JP), filed on Mar. 19, 2019; application No. 2019-051486 (JP), filed on Mar. 19, 2019; and application No. 2019-051487 (JP), filed on Mar. 19, 2019.
Prior Publication US 2022/0146818 A1, May 12, 2022
Int. Cl. G02B 27/00 (2006.01); B60K 35/00 (2006.01); B60S 1/54 (2006.01); G02B 27/01 (2006.01); G06F 3/14 (2006.01); B08B 5/02 (2006.01); B60R 1/24 (2022.01); G06V 20/56 (2022.01); B08B 13/00 (2006.01); B60R 1/31 (2022.01)
CPC G02B 27/0006 (2013.01) [B60K 35/00 (2013.01); B60R 1/24 (2022.01); B60S 1/54 (2013.01); G02B 27/01 (2013.01); G02B 27/0101 (2013.01); G02B 27/0149 (2013.01); G06F 3/14 (2013.01); B08B 5/02 (2013.01); B08B 13/00 (2013.01); B60K 2370/1529 (2019.05); B60K 2370/178 (2019.05); B60K 2370/23 (2019.05); B60K 2370/658 (2019.05); B60K 2370/691 (2019.05); B60R 1/31 (2022.01); G02B 2027/0141 (2013.01); G02B 2027/0154 (2013.01); G06V 20/56 (2022.01)] 18 Claims
OG exemplary drawing
 
1. A vehicular head-up display that is provided in a vehicle and is configured to display a predetermined image to an occupant of the vehicle comprising:
a housing that has an opening upward;
a transparent cover that covers the opening of the housing;
a picture generation section comprising:
a picture generation unit that is provided inside an accommodation portion formed with the housing and the transparent cover in order to emit light for generating the predetermined image; and
a reflection unit that reflects light so that light emitted by the picture generation unit heads toward a windshield; and
a cleaner that is configured to clean an outer surface of the transparent cover;
wherein the cleaner is provided inside the housing and is configured to be actuated according to output of a dirt sensor configured to determine a degree of dirt on the transparent cover based on reflection of the light emitted from the reflection unit at the transparent cover.