Flag actuation system for a lighting fixture
AssigneeHarman Professional Denmark ApS
InventorNiels Jorgen Rasmussen
Life of this patent
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Abstract
A flag actuation system for a lighting fixture is disclosed. The flag actuation system includes an actuator, an actuator axle connected to and drivable by the actuator, and at least two flags, each flag being movable between a first position in which the flag is arranged in an optical path defined by the flag actuation system, and a second position in which the flag is arranged out of the optical path. Each flag is individually and detachably connectable to the actuator axle via a magnetic actuator connection, and each flag is retainable in the first position using a first magnetic retaining connection and in the second position using a second magnetic retaining connection.
Claims15
A flag actuation system for a lighting fixture, the flag actuation system defining an optical path through the flag actuation system, and the flag actuation system comprising:
- an actuator;
- an actuator axle connected to and drivable by the actuator;
- and
- at least two flags, each flag being movable between a first position in which the flag is arranged in the optical path, and a second position in which the flag is arranged out of the optical path;
- wherein each flag is individually and detachably connectable to the actuator axle via a magnetic actuator connection, and each flag is retainable in the first position by means of a first magnetic retaining connection and in the second position by means of a second magnetic retaining connection.
A lighting fixture comprising:
- a base;
- a yoke;
- and
- a head, the head including:
- a light source;
- a gate;
- a zoom and focus system;
- an exit lens;
- and
- a flag actuation system;
- wherein the flag actuation system comprises:
- an actuator;
- an actuator axle connected to and drivable by the actuator;
- and
- at least two flags, each flag being movable between a first position in which the flag is arranged in an optical path through the flag actuation system, and a second position in which the flag is arranged out of the optical path;
- wherein each flag is individually and detachably connectable to the actuator axle via a magnetic actuator connection, and each flag is retainable in the first position by means of a first magnetic retaining connection and in the second position by means of a second magnetic retaining connection.
A method for controlling a flag actuation system comprising an actuator, an actuator axle connected to and drivable by the actuator, and at least two flags, each flag being movable between a first position in which the flag is arranged in an optical path through the flag actuation system, and a second position in which the flag is arranged out of the optical path, wherein each flag is individually and detachably connectable to the actuator axle via a magnetic actuator connection, and each flag is retainable in the first position by means of a first magnetic retaining connection and in the second position by means of a second magnetic retaining connection, the method comprising the steps of:
- selecting a combination of zero or more flags to be arranged in the optical path defined by the flag actuation system;
- selecting a movement pattern of the actuator axle which results in the selected combination of zero or more flags being arranged in the optical path;
- and
- operating the actuator to cause the actuator axle to move in accordance with the selected movement pattern.
Dependencies are inferred from the claim text.