US 12,436,387 B2
Head-up display apparatus
Hui Won Shin, Hwaseong-si (KR); Dong Woo Kim, Seongnam-si (KR); and Ju Hyuk Kim, Suwon-si (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Aug. 18, 2022, as Appl. No. 17/890,622.
Claims priority of application No. 10-2021-0178096 (KR), filed on Dec. 13, 2021.
Prior Publication US 2023/0185087 A1, Jun. 15, 2023
Int. Cl. G02B 27/01 (2006.01); B60K 35/00 (2024.01); B60K 35/23 (2024.01)
CPC G02B 27/0101 (2013.01) [B60K 35/00 (2013.01); G02B 27/0149 (2013.01); G02B 27/0179 (2013.01); B60K 35/23 (2024.01); B60K 2360/334 (2024.01); G02B 2027/0118 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A head-up display apparatus, comprising:
an image source including a display;
a first mirror located above the image source, and having a predetermined transmittance;
a second mirror facing the first mirror, and selectively moving, by a driving unit, between an operating position and a protection position;
a light sensor located behind the first mirror, and configured for detecting sunlight;
a controller electrically connected to the driving unit and configured for controlling the driving unit based on the sunlight detected by the light sensor;
a housing including the first mirror, the second mirror, the light sensor, and the controller received in the housing; and
a light shield blocking light from being reflected to the outside of the housing, wherein the light shield has a low-reflection plating layer coated on a surface thereof,
wherein the operating position is a position in which light transmission is allowed between the image source and a windshield,
wherein the protection position is a position in which the light transmission is blocked between the image source and the windshield,
wherein the light shield includes a first shield portion provided between the first mirror and the second mirror, and a second shield portion provided between the first mirror and the image source, and
wherein the first shield portion includes a bottom wall extending obliquely from a bottom end portion of the first mirror to a bottom end portion of the second mirror, a pair of side walls provided on first and second sides of the bottom wall, and a rear wall provided on a rear end portion of the bottom wall.