Light radiating device

Details Light radiating device Light radiating device

G - Physics

02

B

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G02B 26/08 (2006.01) A01G 7/00 (2006.01) F21S 11/00 (2006.01) F21V 7/00 (2006.01) F21V 8/00 (2006.01) G02B 7/00 (2006.01)

Patent

CA 1238885

-11- ABSTRACT A light radiating device has a transparent cylindrical tube one end of which is connected by a light conducting cable or the like to a natural or artificial light source. A plurality of transparent plates and/or reflective plates are arranged in the tube to be rotatable respectively about independent axes which commonly extend perpendicular to the axis of the tube. When used for plant culture, for example, the plates are sequentially moved to reflect incoming light so that a plant growing in a position adjacent to the device is always illuminated from an optimum direction and under an optimum distribution of light. The axes of rotation of the plates extend in different directions from each other so as to radiate light over the entire circumference of the tube.

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