Title:
HEAD-UP DISPLAY
Document Type and Number:
WIPO Patent Application WO/2021/141040
Kind Code:
A1
Abstract:
The present invention achieves an improvement in the vibration resistance of a concave mirror by a structure having a relatively small thickness. Disclosed is a head-up display (1) provided with a housing (2), an illuminating device (6), a display (3) that is illuminated by the illuminating device and emits display light, and a concave mirror (5) that reflects the display light. The concave mirror is provided with a vibration damping material (8) on a surface on the side opposite to the reflection surface side thereof, and the vibration damping material has a sheet-like form in which a first layer (81) capable of converting vibration energy into heat energy and a second layer (82) having higher surface stiffness than the first layer are stacked.
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Inventors:
KANEKO BUNKICHI
HAYASHI TAKASHI
HAYASHI TAKASHI
Application Number:
PCT/JP2021/000180
Publication Date:
July 15, 2021
Filing Date:
January 06, 2021
Export Citation:
Assignee:
NIPPON SEIKI CO LTD (JP)
International Classes:
G02B27/01; B60K35/00; G02B5/10; G02B7/182
Domestic Patent References:
| WO2017038498A1 | 2017-03-09 |
Foreign References:
| JP2013181155A | 2013-09-12 | |||
| JP2007021813A | 2007-02-01 | |||
| JP2009074581A | 2009-04-09 |
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