Title:
LIGHTING DEVICE AND CULTIVATION EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2017/126681
Kind Code:
A1
Abstract:
Provided is a lighting device with which a cultivation body for plants or the like has a high cultivating effect. A cultivation lighting device of an embodiment of the present invention emits an emission spectrum including a first wavelength component having a light intensity between 600 nm and 700 nm, a second wavelength component having a light intensity between 500 nm and less than 600 nm, and a third wavelength component having a light intensity between 400 nm and less than 500 nm. The lighting device satisfies the condition that relative to the photosynthetically active photon flux of the three wavelength components, i.e., the first, second, and third wavelength components, the content (PPF-R) of the photosynthetically active photon flux of the first wavelength component is 50% to 65%, the content (PPF-G) of the photosynthetically active photon flux of the second wavelength component is 30% to 40%, and the content (PPF-B) of the photosynthetically active photon flux of the third wavelength component is 1% to 15%.
Inventors:
USHIYAMA NAOYA (JP)
MATSUNAGA NORIAKI (JP)
IKEDA YUUICHIRO (JP)
MIYAZAKI MADOKA (JP)
TAKAHASHI YOSHIKO (JP)
MATSUNAGA NORIAKI (JP)
IKEDA YUUICHIRO (JP)
MIYAZAKI MADOKA (JP)
TAKAHASHI YOSHIKO (JP)
Application Number:
PCT/JP2017/001991
Publication Date:
July 27, 2017
Filing Date:
January 20, 2017
Export Citation:
Assignee:
TOSHIBA KK (JP)
International Classes:
A01G7/00; H01L33/50
Foreign References:
| JPS4620553B1 | ||||
| JP2015033367A | 2015-02-19 | |||
| JPH08205677A | 1996-08-13 | |||
| JP2000135031A | 2000-05-16 |
Attorney, Agent or Firm:
KURATA, Masatoshi et al. (JP)
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