| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting device for growing plants or preventing disease damage to plants, wherein light distribution can be easily controlled in parallel with the degree of the growth of the plants and also light is radiated to the plants so as not to cause leaf scorch damage to the plants when the plants come close to the device when growing. <P>SOLUTION: The lighting device 1 includes a straight pipe-shaped lamp 3 and a reflection plate 7 extending along the longitudinal direction of the lamp 3, and is disposed above the target plants to be irradiated. The reflection plate 7 takes a non-reflective position escaping to a location where direct light to the lower part of the lamp 3 is not shielded, and a reflective position which locates in an aspect intersecting with a vertical direction so as to reflect part of the direct light in a direction orthogonal to the longitudinal direction of the lamp 3. The reflection plate 7 can be flexibly exchanged to either the reflective position or the non-reflective position, and can easily adjust light distribution of the light illuminated to the plant from the lamp 3, so that the plants can be irradiated with the light at an appropriate quantity of light in parallel with the degree of the growth of the plants. Also, the light from the lamp 3 is not directly radiated to the plants located just below when the reflection plate 7 locates at the reflecting position, so as to reduce the leaf scorch damage to the plants. <P>COPYRIGHT: (C)2012,JPO&INPIT |
