Title:
HEAD-UP DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/256456
Kind Code:
A1
Abstract:
Provided is a head-up display device capable of matching the illumination position of display light to the viewpoint of a viewer. A head-up display device 100 displays a virtual image by projecting display light L onto a windshield. The head-up display device 100 is provided with: a display unit 10 for emitting the display light L; first and second wedge prisms 41, 42 which are disposed on the optical path of the display light L from the display unit 10 to the windshield, and which transmit the display light L from the display unit 10; and first and second drive portions 43, 44 for rotating the first and second wedge prisms 41, 42 respectively about an axis of rotation along the optical path.
Inventors:
MARUOKA HISATOSHI
Application Number:
PCT/JP2021/022626
Publication Date:
December 23, 2021
Filing Date:
June 15, 2021
Export Citation:
Assignee:
NIPPON SEIKI CO LTD (JP)
International Classes:
G02B27/01; B60K35/00
Foreign References:
| CN102591110A | 2012-07-18 | |||
| JP2015146012A | 2015-08-13 | |||
| JPH04352124A | 1992-12-07 | |||
| JPS60143312A | 1985-07-29 | |||
| US20130101276A1 | 2013-04-25 |
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