Light radiator for the cultivation of fish
OwnerKei Moriinventor
Life of this patent
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Abstract
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.
Claims10
A light radiator device which is useable underwater for cultivating fish, comprising a light guide having an end portion through which light rays are introduced and having a peripheral surface through which light rays are emitted, a transparent first container for hermetically accommodating said light guide such that light rays emitted from said light guide pass through said first container, and a semi-transparent second container for hermetically accommodating said first container such that light rays emitted from said light guide and passing through said first container pass through said second container into the surrounding water in which said light radiator is disposed.
An underwater light-radiating device which is useable underwater for cultivating fish comprising a transparent first container, a light guide means extending into said first container and operable to emit light rays through said first container into the surrounding water, a second container, conduit means extending between said first and said second containers, said second container being more flexible than said first container such that when said device is used underwater and subjected to increasing underwater pressure, said second container will at least partially collapse before said first container due to said underwater pressure to thereby compress the air in said second container, thereby increasing the air pressure in said first container via said conduit means to prevent said first container from collapsing.
Dependencies are inferred from the claim text.