Title:
LENS FOR ILLUMINATION, LIGHT EMITTING DEVICE, AND LUMINAIRE
Document Type and Number:
Japanese Patent JP2016162497
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a lens for illumination which controls the intensity of flare light without significantly changing the central luminous intensity or the beam angle.SOLUTION: A lens for illumination includes: a condenser lens 9; and an adjustment lens 10. The condenser lens 9 has an outer peripheral surface 12b. In the outer peripheral surface 12b, a diameter becomes larger toward a surface 11a. A hollow part 13 is formed in the condenser lens 9. The hollow part 13 is surround by the outer peripheral surface 12b. The hollow part 13 opens on the surface 11a. The adjustment lens 10 has an adjustment part 15 having a circular column. The adjustment part 15 may move in the hollow part 13 along a central axis of the outer peripheral surface 12b.SELECTED DRAWING: Figure 5
Inventors:
OKUMURA SHINICHIRO
BAN KAZUO
BAN KAZUO
Application Number:
JP2015037260A
Publication Date:
September 05, 2016
Filing Date:
February 26, 2015
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F21V5/00; F21S2/00; F21V14/00; F21V14/06; F21V17/00; F21V29/503; F21V29/70
Domestic Patent References:
| JP2009245910A | 2009-10-22 | |||
| JP2012221769A | 2012-11-12 | |||
| JP2011024427A | 2011-02-10 |
Foreign References:
| US20110149581A1 | 2011-06-23 | |||
| WO2015020229A1 | 2015-02-12 |
Attorney, Agent or Firm:
Mamoru Takada
Hideki Takahashi
Jiro Ozawa
Hideki Takahashi
Jiro Ozawa