Illumination – Self powered lamp – With hermetic seal
Patent
1980-08-11
1982-07-27
Nelson, Peter A.
Illumination
Self powered lamp
With hermetic seal
362184, 362307, 362185, 362310, 362200, 362375, 362223, 362225, 362267, 362277, F21V 3100
Patent
active
043420710
ABSTRACT:
A lamp capable of underwater use comprises a rectangular acrylic body with elongate V-shaped recesses in a major surface each receiving an elongate Beta-light. An acrylic cover plate is sealed to the major surface and the body is secured to a steel backing plate with a neoprene layer between to help dissipate shock loadings. The sides of the recesses include an angle of 78.degree. to enhance reflection and may be formed by a reflective lining. The Beta-lights can be received in the grooves by shock absorbent O-rings grouped in pairs with adhesive in between. In a modification a disc-shaped Beta-light is encapsulated and received in a body formed by pour molding which is closed by a cap which is ultrasonically welded into place.
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Challenger Diving Limited
Darbo Howard H.
Nelson Peter A.
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