Title:
LIGHT CONCENTRATING UNIT, LIGHT CONCENTRATING DEVICE, AND ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/112015
Kind Code:
A1
Abstract:
Provided are: a light concentrating unit that is capable of efficiently concentrating a large amount of sunlight; a light concentrating device that comprises said light concentrating unit; and an illumination device that is combined with said light concentrating device and radiates concentrated sunlight. This light concentrating unit comprises a plurality of lenses, namely, a main lens (11) that is a centrally disposed convex lens having a circular shape in a plan view, and an auxiliary lens (12) that is a convex lens having a non-circular shape in a plan view and disposed around the main lens. Sunlight incident to the incident surfaces of the lenses (11, 12) is converged upon a focal point (F) of the main lens.
Inventors:
TESHIMA HIROMITSU (JP)
Application Number:
PCT/JP2018/044969
Publication Date:
June 13, 2019
Filing Date:
December 06, 2018
Export Citation:
Assignee:
TESHIMA TUSHO CORP (JP)
International Classes:
F24S23/30; F21S11/00; F21V8/00; G02B3/08; G02B27/00; H02S40/22
Foreign References:
| JPH0836102A | 1996-02-06 | |||
| JP2000500884A | 2000-01-25 | |||
| US20080117522A1 | 2008-05-22 | |||
| JPH1068904A | 1998-03-10 | |||
| JPS5837609U | 1983-03-11 | |||
| JP2008243374A | 2008-10-09 |
Attorney, Agent or Firm:
HASHIMOTO Kyoko et al. (JP)
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