Title:
AERIAL IMAGE PROJECTION APPARATUS AND MOBILE BODY
Document Type and Number:
WIPO Patent Application WO/2021/256246
Kind Code:
A1
Abstract:
This aerial image projection apparatus includes: a first reflective element; a second reflective element; a first optical element; a display device; and a second optical element. The first reflective element is configured to cause part of first image light entering from a first direction to pass therethrough toward a second direction, and configured to reflect, in a third direction, part of second image light entering from the second direction. The second reflective element is configured to retroreflect, as the second image light, the first image light having passed through the first reflective element. The first optical element is located between the first reflective element and the second reflective element, and is configured to collect the first image light and collect the second image light. The display device is configured to emit the first image light. The second optical element is configured to divide a luminous flux of the first image light emitted from the display device into at least two luminous fluxes.
Inventors:
SHIMOSE KAZUKI (JP)
KAWANISHI HIROYOSHI (JP)
KAWANISHI HIROYOSHI (JP)
Application Number:
PCT/JP2021/020845
Publication Date:
December 23, 2021
Filing Date:
June 01, 2021
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
G02B30/30; G02B5/08; G02B5/124; G02B5/30; G02B27/01; G02B30/27; G02B30/56
Foreign References:
| JP2019207370A | 2019-12-05 | |||
| JP2019109407A | 2019-07-04 | |||
| JP2002511601A | 2002-04-16 | |||
| US20180024373A1 | 2018-01-25 | |||
| JP2019132916A | 2019-08-08 | |||
| JP2015153889A | 2015-08-24 | |||
| JP2018018003A | 2018-02-01 |
Attorney, Agent or Firm:
SAIKYO, Keiichiro (JP)
Download PDF: