F - Mech Eng,Light,Heat,Weapons – 21 – L
Patent
F - Mech Eng,Light,Heat,Weapons
21
L
F21L 4/00 (2006.01) B63C 9/20 (2006.01) F21V 3/00 (2006.01) F21V 15/01 (2006.01) F21V 23/04 (2006.01) F21V 31/00 (2006.01) G01R 31/36 (2006.01) G01R 31/44 (2006.01) H01H 29/16 (2006.01) H05B 37/02 (2006.01)
Patent
CA 2580064
A water activated survival lamp unit for mounting to a flotation device above and in proximity to the water line. The survival lamp unit has a light source including a LED array having a plurality of semi conducting light emitting chips encased in a unitary lens structure through which the semi conducting light emitting chips output light. The survival lamp unit further includes a water responsive actuator for controlling the operation of the light source, responsive to a momentary contact with a coherent body of water for actuating the light source for an operative cycle of a time period largely exceeding a duration of the momentary contact. When the survival lamp unit is actuated it emits either fixed light or flashing light in generally all directions of the upper hemisphere with a luminous intensity of least 0.75 cd if the light source emits fixed light or an effective luminous intensity of at least 0.75 cd if the light source emits flashing light.
Fetherstonhaugh & Co.
Rutter Inc.
LandOfFree
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