F - Mech Eng,Light,Heat,Weapons – 21 – V
Patent
F - Mech Eng,Light,Heat,Weapons
21
V
240/85
F21V 31/00 (2006.01) F21S 8/00 (2006.01) F21V 25/12 (2006.01)
Patent
CA 1121322
-1- ABSTRACT UNDERWATER LIGHTING A lamp capable of underwater use comprises a rectangular acrylic body (l) with elongate V-shaped recesses (2) in a major surface each receiving an elongate Beta-light (5). An acrylic cover plate (4) is sealed to the major surface and the body (1) is secured to a steel backing plate (12) with a neoprene layer (10) between to help dissipate shock loadings. The sides of the recesses (2) include an angle of 78° to enhance reflection and may be formed by a reflective lining (30). The Beta lights (5) can be received in the recesses by shock absorbent O-rings (96) grouped in pairs with adhesive in between. In a modification a disc- shaped Beta-light (52) is encapsulated and received in a body (58) formed by pour moulding which is closed by a cap (56) which is ultrasonically welded into place.
315594
Challenger Engineering Limited
Gowling Lafleur Henderson Llp
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