A light radiator for use in the cultivation of fish is described. The device includes a light guide for introducing light rays therein through its end portion and emits the same through its peripheral surface, a first-transparent container for hermetically accommodating therein the light guide and a second semitransparent container for hermetically accommodating therein the first transparent container. The second container is placed in water so as to outwardly project the light through the semi-transparent container.
Jan 09, 1989 [JP] 1-2238 Jul 28, 1989 [JP] 1-196060
USPTO Field of Search
350/96.10
350/96.15
350/96.29
Related Patents
5862449 - Photocatalytic reactor - Owned by The United States of America as represented by the United States Department of Energy (Washington, DC)
A photocatalytic reactor for processing selected reactants from a fluid medium comprising at least one permeable photocatalytic membrane having a photocatalytic material. The material forms an area of chemically active sites when illuminated by light at selected wavelengths. When the fluid medium is passed through the illuminated membrane, the reactants are processed at these sites separating the processed fluid from the unprocessed fluid. A light source is provided and a light transmitting means, including an optical fiber, for transmitting light from the light source to the membrane.
