摘要:
A lighting device 1 has phosphors, a porous material (5), and emitters 4. The emitters are interposed between the phosphors and surfaces (2a) to be irradiated with light of the lighting device. The porous material has heat conductivity and is impregnated with the phosphors.
摘要:
Disclosed are: a lighting environment control facility capable of controlling light to be irradiated on cultivated crops to an optimum condition for the growth of the crops, thereby activating a natural defense of the crops against pests; a pest control method capable of determining whether or not to control pests of cultivated crops and controlling the pests on the basis of the determination; and an intensive cultivation method. The facility is used for pesticide-free cultivation, and includes a crop cultivation house which is formed of a light transmissive material and in which crops are cultivated, and a lighting control unit that controls the light to be irradiated upon the crops in the crop cultivation house. The lighting control unit is adapted to control spectral radiance (B 1 ) of a wavelength range of blue light, spectral radiance (R 1 ) of a wavelength range of red light, and spectral radiance (FR 1 ) of a wavelength range of far-red light among the light to be irradiated on the crops that are cultivated in the crop cultivation house so as to be a predetermined condition.
摘要:
A support member 2 are made of a material(s) that excel in both of electrical conductivity and thermal conductivity. Phosphors 4 are applied to the surface of the support member 2. The phosphors 4 include layers having a very small thickness as close as possible to a minimum quantity of phosphors that can be obtained. The phosphors 4 are disposed on a surface of the support member 2 in a thickness small enough to an extent that the support member 2 is slightly glimpsed in part from between the phosphors 4. The support member 2 is exposed in part out of the lighting device.
摘要:
A lighting device 1 has phosphors, a porous material (5), and emitters 4. The emitters are interposed between the phosphors and surfaces (2a) to be irradiated with light of the lighting device. The porous material has heat conductivity and is impregnated with the phosphors.
摘要:
Disclosed are: a lighting environment control facility capable of controlling light to be irradiated on cultivated crops to an optimum condition for the growth of the crops, thereby activating a natural defense of the crops against pests; a pest control method capable of determining whether or not to control pests of cultivated crops and controlling the pests on the basis of the determination; and an intensive cultivation method. The facility is used for pesticide-free cultivation, and includes a crop cultivation house which is formed of a light transmissive material and in which crops are cultivated, and a lighting control unit that controls the light to be irradiated upon the crops in the crop cultivation house. The lighting control unit is adapted to control spectral radiance (B 1 ) of a wavelength range of blue light, spectral radiance (R 1 ) of a wavelength range of red light, and spectral radiance (FR 1 ) of a wavelength range of far-red light among the light to be irradiated on the crops that are cultivated in the crop cultivation house so as to be a predetermined condition.
摘要:
There is provided a greenhouse windbreak mechanism which is less prone to collapse of cultivation greenhouses, even when the greenhouse windbreak mechanism is constructed along with the cultivation greenhouses such as plastic greenhouses with relatively-lower strength and is subjected to storm winds or strong monsoons. There are provided a windbreak fence which surrounds one or more cultivation greenhouses and is annularly placed to be erected with a larger height than that of the cultivation greenhouses, a ventilation portion which is formed, at an upper portion of the windbreak fence, to have a predetermined longitudinal width from the upper end of the windbreak fence and includes a plurality of through holes which are dispersedly placed; and a plurality of baffle plates which form a plurality of through holes in its entire surface or partially for passing strong winds therethrough when they are laterally placed above the cultivation greenhouses. The ventilation portion and the baffle plates alleviate strong winds intruding into the inside of the mechanism by getting around the upper end of the windbreak fence, when the strong winds impinge on the windbreak fence.