Light and Sound Design Ltd.

Production Resource Group Inc.

Keith J Owen

Mark A Hunt

Michael D Hughes

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.

Stage lighting lamp unit and stage lighting system including such unit

Three primary colored flourescent bulbs are selectively dimmed according to a ratio which produces a desired color, and at a brightness as desired.

Variable color fluorescent lighting

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 coordinates 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.

Color image protection apparatus

A control console for controlling stage lighting includes a panel on which there are mounted a multiplicity of control elements in the form of switches, slider potentiometers and others which can be used by an operator to input control data to the console and directly control remote lamp units connected to the console. The console includes a main cpu which forms part of an electronic control system which includes function allocation means enabling the operator to determine which one of the control elements exercises control over a particular independently controllable function of one or more of the lamps. The console also includes a data distribution unit which includes a plurality of separate serial communication controllers for communicating with respective ones of the lamps. An SCSI bus is used for transferring data between the main cpu and the distribution unit, which includes its own processor unit for distributing the data to the serial communication controllers.

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Birmingham, United Kingdom

Keith J Owen