Title:
LIGHTING DEVICE FOR PATTERN FORMATION
Document Type and Number:
WIPO Patent Application WO/2011/033906
Kind Code:
A1
Abstract:
Disclosed is a lighting device which has a simple configuration and which can be used to project desired shapes, letters, or the like onto physical objects, and which can easily change said shapes, letters or the like. The device is equipped with: an LED light source (3); a first refractive element (4) which refracts the light from the LED light source (3) and focuses it, in a predetermined position, into an image of an optically emitted shape as seen from the direction of the optical axis of the LED light source; and a casing (2) which houses the LED light source (3) and the first refractive element (4), and which has a light emission opening (2A) which emits light leaving the first refractive element (4) to the outside.
Inventors:
IKEDA TAKAHIRO (JP)
Application Number:
PCT/JP2010/064164
Publication Date:
March 24, 2011
Filing Date:
August 23, 2010
Export Citation:
Assignee:
PI PHOTONICS INC (JP)
IKEDA TAKAHIRO (JP)
IKEDA TAKAHIRO (JP)
International Classes:
G09F13/00; F21S2/00; G03B21/14; G09F9/33; G09F19/18; G09F19/22; F21V5/04; F21V14/02; F21Y101/02
Foreign References:
| JPH0963342A | 1997-03-07 | |||
| JP2008210712A | 2008-09-11 | |||
| JPS6059406U | 1985-04-25 | |||
| JP2005285697A | 2005-10-13 | |||
| JP2000057813A | 2000-02-25 | |||
| JPS61147496U | 1986-09-11 | |||
| JPH07325550A | 1995-12-12 | |||
| JP2005056689A | 2005-03-03 | |||
| JP2008210712A | 2008-09-11 |
Other References:
See also references of EP 2479742A4
Attorney, Agent or Firm:
SATO, AKIKO (JP)
Akiko Sato (JP)
Akiko Sato (JP)
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