Light projecting device
专利汇可以提供Light projecting device专利检索，专利查询，专利分析的服务。并且PURPOSE: To effectively irradiate a plant with the direct sunshine and indirect sunshine by varying a voltage impressed to an irregular reflecting liquid crystal plate and controlling light energy transmitted through the irregular reflecting liquid crystal plate.
CONSTITUTION: A doughnut-shaped intermediate plate 5 have its center part 5b made of a hollow or transparent plate and part of light from a photoconductor cable 1 which is transmitted through the hollow or transparent plate part 5 reaches the lower irregular reflecting liquid crystal plate 3. This light is projected as the direct light when transmitted through the lower irregular reflecting liquid crystal plate 3, but when the voltage is impressed to the lower irregular reflecting liquid crystal plate 3, the light is projected after being split into the direct light and indirect light according to the voltage. Further, when an intermediate plate 5 is moved down, the direct component passing through the lower plate 3 decrease and light reflected by a reflecting plate part 5a is projected as the indirect light. Consequently, the ratio of the direct light and indirect light required for the rearing and cultivation of plants is selected optionally as desired and the light is supplied.
COPYRIGHT: (C)1988,JPO&Japio，下面是Light projecting device专利的具体信息内容。
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