Title:
HEAD-UP DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/075492
Kind Code:
A1
Abstract:
A head-up display is provided which enables accurately measuring the surface shape of a reflective surface. This head-up display includes a display device which emits display light, an optical relay which includes a first mirror 11 for reflecting the display light and which guides the display light from the display device to a window shield, and a holder 42 which supports the first mirror 11 from the back surface 11b, on the side opposite of the reflective surface 11a of the first mirror 11 that reflects the display light. The first mirror 11 is provided with supported surfaces 115 which are provided on the back surface 11b and which are used when the surface shape of the reflective surface 11a of the first mirror 11 is measured. The holder 42 is provided with measurement holes 424 which pass through the holder 42 in the thickness direction and which are formed in positions corresponding to the supported surfaces 115 in said thickness direction.
Inventors:
KOBORINAI SEIYA
FURUSAWA HIROYUKI
FURUSAWA HIROYUKI
Application Number:
PCT/JP2020/038886
Publication Date:
April 22, 2021
Filing Date:
October 15, 2020
Export Citation:
Assignee:
NIPPON SEIKI CO LTD (JP)
International Classes:
G02B27/01; B60K35/00; G02B7/182
Domestic Patent References:
| WO2014180509A1 | 2014-11-13 |
Foreign References:
| JP2007109957A | 2007-04-26 | |||
| JP2019045518A | 2019-03-22 | |||
| JP2016218163A | 2016-12-22 | |||
| JP2019174674A | 2019-10-10 |
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