Stage lighting lamp unit and stage lighting system including suc

Details Stage lighting lamp unit and stage lighting system including suc Stage lighting lamp unit and stage lighting system including suc

1995-12-21

1998-08-04

Husar, Stephen F.

Illumination

Light source and modifier

Including reflector

362293, 362297, 362343, 362346, F21V 700

Patent

active

057883653

ABSTRACT:
A stage lighting lamp unit includes a processor for receiving control data from a remote console. Beam orientation data for the lamp unit is passed to the lamp in the form of the x, y and z co-ordinates of a point in space through which the beam is to pass. The processor divides the required lamp travel into a number of stages dependent on execution duration data sent with the position data, and calculates, for each stage, a new value for pan and tilt angles for the lamp. These values are passed to pan and tilt controlling co-processors which control servo-motors for pan and tilt operation. The lamp unit also incorporates a rotatable shutter for interrupting the lamp beam when required. The shutters of all the lamps in a system can be instructed from the remote console to open and close in synchronism, thereby providing a stroboscopic effect.

REFERENCES:
patent: 4890208 (1989-12-01), Izenour
patent: 4945459 (1990-07-01), Ferren et al.
patent: 5045983 (1991-09-01), Shields
patent: 5414601 (1995-05-01), Davenport et al.

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