Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/072505
Kind Code:
A1
Abstract:
The purpose of the present invention is to freely modify the lighting mode of any area within a lighting range, without the need for a complex optical system configuration. This lighting device is provided with a coherent light source (4) for emitting coherent light, and an optical element (3) for diffusing coherent light. The optical element (3) has a first diffusion area (16) for diffusing coherent light and lighting a first range (15), and a second diffusion area (18) for diffusing coherent light and displaying prescribed information in a second range (17).
Inventors:
KURASHIGE MAKIO (JP)
SATO TOMOE (JP)
ISHIDA KAZUTOSHI (JP)
SATO TOMOE (JP)
ISHIDA KAZUTOSHI (JP)
Application Number:
PCT/JP2015/081373
Publication Date:
May 12, 2016
Filing Date:
November 06, 2015
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
B60Q1/00; B60Q1/04; B60Q1/26; F21S8/10; F21S8/12; F21V9/40; G02B5/32; G03H1/22; G09F13/00
Domestic Patent References:
| WO2012070433A1 | 2012-05-31 |
Foreign References:
| JP2012146621A | 2012-08-02 | |||
| JP2011222238A | 2011-11-04 | |||
| JP2005161977A | 2005-06-23 | |||
| JPH06191346A | 1994-07-12 |
Other References:
See also references of EP 3216650A4
Attorney, Agent or Firm:
KATSUNUMA Hirohito et al. (JP)
Katsunuma Hirohito (JP)
Katsunuma Hirohito (JP)
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