US 12,298,503 B2
Head-up display device
Hyun Woo Kang, Seongnam-si (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed on May 24, 2022, as Appl. No. 17/752,315.
Claims priority of application No. 10-2021-0078907 (KR), filed on Jun. 17, 2021.
Prior Publication US 2022/0404617 A1, Dec. 22, 2022
Int. Cl. G02B 27/01 (2006.01); G02B 5/09 (2006.01); G02B 5/10 (2006.01)
CPC G02B 27/0101 (2013.01) [G02B 5/09 (2013.01); G02B 5/10 (2013.01); G02B 27/0149 (2013.01); G02B 2027/0161 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A head-up display device comprising:
a housing having a receiving space;
a display unit disposed over the housing;
a light source unit configured to emit light and having a main optical axis that is not directed to the display unit;
a first reflector configured to reflect a first portion of the light emitted from the light source unit towards the display unit;
a diffuser disposed on an optical path of the first portion of the light reflected from the first reflector; and
a second reflector disposed at the receiving space of the housing, positioned between the light source and the diffuser, and configured to reflect a second portion of the light emitted from the light source unit towards the display unit through the diffuser.