Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/012530
Kind Code:
A1
Abstract:
This lighting device (100) comprises a light source (50), an optical element (1), an optical element (3), a holding member (4), and a spring member (2). The light source (50) comprises a light-emitting element (52) that emits light. The optical element (1) transmits the light. The optical element (3) transmits the light that has been transmitted by the optical element (1). The holding member (4) holds the optical element (3). The spring member (2) has a spring portion (201) that generates a spring force by being deflected, pushes the optical element (3) against the holding member (4) through the spring force, and holds the optical element (3) against the holding member (4). The optical element (1) and the optical element (3) cause a center portion (206) in the long edge direction of the spring portion (201) to deflect relative to an end portion (207) in the long edge direction of the spring portion (201).
Inventors:
OSHIMA RITSUYA (JP)
SUWA MASASHIGE (JP)
NAKAMURA KEIJI (JP)
KUWATA MUNEHARU (JP)
SUWA MASASHIGE (JP)
NAKAMURA KEIJI (JP)
KUWATA MUNEHARU (JP)
Application Number:
PCT/JP2017/025394
Publication Date:
January 18, 2018
Filing Date:
July 12, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F21V17/00; F21V19/00; G02B7/00; G02B7/02; F21Y115/10; F21Y115/20; F21Y115/30
Foreign References:
| JP2014216159A | 2014-11-17 | |||
| JP2010078920A | 2010-04-08 | |||
| JP2015191742A | 2015-11-02 |
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (JP)
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