Title:
HEAD-UP DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/059618
Kind Code:
A1
Abstract:
The present invention achieves excellent visibility for two or more images displayed at different angles. A first screen 13 is disposed to be at a first tilt angle θ1 relative to an optical axis AX of a projection light 100, and displays a first image M1 based on first projection light 101. A second screen 14 is arranged at a greater distance from a projector 20 than the first screen 13 along the optical axis AX, is disposed to be at a second tilt angle θ2 different from the first tilt angle θ1 relative to the optical axis AX of the projection light 100, and displays a second image M2 based on second projection light. The projector 20 is capable of generating an original image formation plane 16 of the projection light 100 so that the original image formation plane is at a third tilt angle θ3 relative to the optical axis AX of the projection light 100. The original image formation plane 16 is disposed at a position closer to the projector 20 than the second screen 14 along the optical axis AX such that the third tilt angle θ3 becomes greater than the second tilt angle θ2.
Inventors:
KAWAI TAKERU
Application Number:
PCT/JP2019/035835
Publication Date:
March 26, 2020
Filing Date:
September 12, 2019
Export Citation:
Assignee:
NIPPON SEIKI CO LTD (JP)
International Classes:
G02B27/01; B60K35/00; H04N5/74
Foreign References:
| JP2018105939A | 2018-07-05 | |||
| JP2018066837A | 2018-04-26 | |||
| JP2000233665A | 2000-08-29 |
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