Flash lamp unit
AssigneeU.S. Philips Corporation
InventorsAndreas Maria Heeman, Piet Jan Maria Steeghs
Life of this patent
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Abstract
A flash lamp unit having at least one row of flash lamps which are arranged on a common elongate support and which can be fired by a stroke against a lamp portion, which flash lamp unit comprises a number of striker springs which are locked in the pre-energized condition and which can be unlocked by ramps on a body which is movable step-wise in the longitudinal direction of the support, the force necessary for the movement being supplied by a transport spring present in the unit or by at least one of the striker springs. The step-wise movement of the body is preferably enabled by an escapement which cooperates with teeth occurring on the body. The ramps on the body cooperate with the springs to sequentially release the springs.
Claims3
A flash lamp unit having a plurality of percussion flash lamps which ignite responsive to impact disposed in at least one row, a common elongate support carrying said one row of lamps, a plurality of striker springs, each of said springs being disposed proximate to a different one of said plurality of lamps, means for holding each spring in a prestressed form and selectively releasing each spring individually, each spring impacting said proximate lamp when selectively released to ignite said proximate lamp, an elongate body cooperating with said support, said body being movable in the longitudinal direction with respect to said support, said body having a plurality of projections disposed in spaced relationship, each of said projections cooperating with said springs and sequentially releasing said springs from a prestressed form upon incremental movement of said body in the longitudinal direction, escapement means to selectively hold said body in a plurality of discreet longitudinal positions and biasing means for urging said body in said longitudinal direction comprising one or more of said striker springs.
Dependencies are inferred from the claim text.