Lamp assembly with switch and focussing mechanisms

Details Lamp assembly with switch and focussing mechanisms Lamp assembly with switch and focussing mechanisms

H - Electricity

05

B

240/112

H05B 39/02 (2006.01) F21L 11/00 (1980.01)

Patent

CA 1154414

ABSTRACT OF THE DISCLOSURE A lamp assembly includes a housing, a lamp bulb carrier slidably mounted in the housing for reciprocating move- ment along the optical axis of the lamp bulb and an actuator mounted in the housing for annular movement about an axis sub- stantially perpendicular to the optical axis of the lamp bulb. The actuator has an eccentric portion engaging the lamp bulb carrier to effect reciprocation of the lamp bulb carrier when the actuator is angularly moved, and a switch carried by the housing is connected to the lamp bulb and connectable to an electrical power supply. The actuator also has a cam which engages and actuates the switch over a predetermined range of annular movement of the actuator to cause the lamp to be illuminated while the lamp is reciprocated along its optical axis.

388512

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