Shutter system for stage-lighting spotlights

Details Shutter system for stage-lighting spotlights Shutter system for stage-lighting spotlights

F - Mech Eng,Light,Heat,Weapons

21

V

240/171

F21V 11/00 (2006.01) F21S 8/00 (2006.01) F21V 11/18 (2006.01)

Patent

CA 1054991

ABSTRACT A shutter system for stage-lighting spotlights includes a housing having a fixed framing gate therein which has an opening there- through for the passage of light. Two sets of opposing shutter blades are sandwiched, one on each side of the framing gate, between the framing gate and one of a pair of pressure plates which have means urging them toward the framing gate. Each shutter blade has a neck portion which extends through a slot in the housing and which serves as a handle to which pressure may be applied to move the shutter blade. The blades are normally held in a place by the action of the pressure plates against the blades and framing gate.

282673

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