US 12,352,956 B2
Picture generation apparatus, reflector, and head-up display
Masahiro Hori, Shizuoka (JP); Masayoshi Watanabe, Shizuoka (JP); Takashi Yamamoto, Shizuoka (JP); Masashi Katayama, Shizuoka (JP); and Mamoru Kosuge, Shizuoka (JP)
Assigned to KOITO MANUFACTURING CO., LTD., Tokyo (JP)
Appl. No. 17/914,648
Filed by KOITO MANUFACTURING CO., LTD., Tokyo (JP)
PCT Filed Mar. 10, 2021, PCT No. PCT/JP2021/009630
§ 371(c)(1), (2) Date Sep. 26, 2022,
PCT Pub. No. WO2021/193074, PCT Pub. Date Sep. 30, 2021.
Claims priority of application No. 2020-055742 (JP), filed on Mar. 26, 2020; application No. 2020-055743 (JP), filed on Mar. 26, 2020; application No. 2020-077611 (JP), filed on Apr. 24, 2020; application No. 2020-077612 (JP), filed on Apr. 24, 2020; and application No. 2020-088272 (JP), filed on May 20, 2020.
Prior Publication US 2023/0350198 A1, Nov. 2, 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); B60K 35/23 (2024.01); B60K 2360/23 (2024.01)] 6 Claims
OG exemplary drawing
 
1. A picture generation apparatus that generates a picture for a head-up display, the picture generation apparatus comprising:
a light source substrate on which a light source is mounted;
an optical member through which light emitted from the light source is transmitted;
a display device configured to form, by the light transmitted through the optical member, light for generating a predetermined picture;
a heat sink configured to dissipate heat generated from the light source substrate; and
a holder configured to hold the optical member,
wherein the holder includes a plurality of first engagement portions, and the heat sink includes a plurality of second engagement portions that are respectively provided at positions corresponding to the plurality of first engagement portions,
wherein each of the plurality of first engagement portions and a respective one of the plurality of second engagement portions are fixed to each other, so that the light source substrate is positioned and fixed in a state of being interposed between the holder and the heat sink and being accommodated in a space that is formed among the plurality of first engagement portions,
wherein the holder includes a pair of first surfaces parallel to a light emitting surface of the display device, and a second surface formed between the pair of first surfaces and inclined with respect to the pair of first surfaces,
wherein the plurality of first engagement portions are hole portions formed in the pair of first surfaces,
wherein the second surface includes an opening and a frame portion that surrounds a periphery of the opening, and
wherein the light source substrate is attached to the frame portion so that the light source is disposed in the opening.