초록 ▼

A new circuit is connected to the pan servo amplifier 38 of a camera remote pan head 44 for the purpose of eliminating the need for manual backpan. The circuit comprises a tachometer 20 mounted on the pan arm of a camera crane or jib arm 28 and connected to switch 32 and potentiometers 34 and 36. Th

A new circuit is connected to the pan servo amplifier 38 of a camera remote pan head 44 for the purpose of eliminating the need for manual backpan. The circuit comprises a tachometer 20 mounted on the pan arm of a camera crane or jib arm 28 and connected to switch 32 and potentiometers 34 and 36. The switch and potentiometers select between three options for operation: an off position, a one to one reverse correspondence between the panning movement of the crane arm 28 and the panning movement of the pan head 44, and a variable reverse correspondence between the panning movement of the crane arm 28 and the panning movement of the remote pan head 44. The output is summed to a servo amplifier 38 which drives the remote head pan motor/tachometer 40. A number of means for alternative implementation are also suggested.

대표청구항 ▼

A system for automatically compensating for unwanted arc of a camera when panned on a crane arm or jib comprising: a motor for panning the camera; a motion sensor located on said arm or jib, said motion sensor being connected to a servo amplifier in such as a manner as to compensate for angular pan

A system for automatically compensating for unwanted arc of a camera when panned on a crane arm or jib comprising: a motor for panning the camera; a motion sensor located on said arm or jib, said motion sensor being connected to a servo amplifier in such as a manner as to compensate for angular pan movement of said arm or jib by panning said camera in a reverse direction; and a means to turn the compensation on and off.