Title:
IMAGE DISPLAY DEVICE, CAR ONBOARD SYSTEM, AND IMAGE DISPLAY METHOD
Document Type and Number:
WIPO Patent Application WO/2017/138321
Kind Code:
A1
Abstract:
This image display device includes a light source for radiating light, an optical scanning unit for scanning a prescribed scan area with light from the light source and drawing a display image, a luminous energy detection unit for detecting the luminous energy of light from the light source, a storage unit for storing a relationship between a control current supplied to the light source and the luminous energy, and a control unit for controlling the control current on the basis of the relationship between the control current and the luminous energy stored in the storage unit so that the display image is displayed by light from the light source. When the optical scanning unit scans an external area of the display image, the control unit detects, using the luminous energy detection unit, the luminous energy of light with which the area is scanned, and updates the relationship between the control current and the luminous energy stored in the storage unit on the basis of the detected luminous energy.
Inventors:
HIGUCHI MIHO (JP)
YASUDA TAKURO (JP)
YASUDA TAKURO (JP)
Application Number:
PCT/JP2017/001757
Publication Date:
August 17, 2017
Filing Date:
January 19, 2017
Export Citation:
Assignee:
RICOH CO LTD (JP)
HIGUCHI MIHO (JP)
YASUDA TAKURO (JP)
HIGUCHI MIHO (JP)
YASUDA TAKURO (JP)
International Classes:
H04N5/74; B60K35/00; G01C21/26; G02B26/10; G02B27/01; G03B21/00; G03B21/14; G09G3/02; G09G5/00; H04N9/31
Foreign References:
| JP2015162526A | 2015-09-07 | |||
| JP2014186078A | 2014-10-02 | |||
| JP2010054879A | 2010-03-11 | |||
| JP2014132302A | 2014-07-17 | |||
| JP2015129783A | 2015-07-16 | |||
| JP2014174292A | 2014-09-22 | |||
| JP2014132295A | 2014-07-17 |
Other References:
See also references of EP 3416376A4
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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