Illumination – Plural light sources
Patent
1991-03-25
1993-07-06
Cole, Richard R.
Illumination
Plural light sources
362320, 362332, 362340, 362800, F21V 502
Patent
active
052247732
ABSTRACT:
A beacon lantern and a lens for the same with improved light transmission factor, which is easy to manufacture and uses LEDs as a light source. A lantern comprising light source of many LEDs radially distributed on a horizontal circumference and a cylindrical fresnel lens converging beams of light in all horizontal directions, in which the lens is made by rolling a sheet-like, fine prism-shaped linear fresnel lens into a shape of a cylinder. The lantern maintains a top lid and a lower lantern body with a prescribed distance therebetween by way of a center bolt, between said lid and lower lantern body a transparent cylindrical cover is maintained, on the inner surface thereof is the rolled sheet-like linear fresnel lens joined therewith.
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Cole Richard R.
Zeni Lite Buoy Company, Ltd.
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