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Claim 2

In a light projector generating a beam suitable for performance lighting; capable of beam parameter adjustment by an attending operator including at least azimuth and elevation adjustment; and provided with an optical sight with a field of view substantially the same as the beam mounted to said projector for aiming it, the improvement comprising: (a) means for sensing beam azimuth and elevation; (b) means located at said projector so as to be visible to said operator for displaying in digital form a value corresponding to beam azimuth and elevation; and (c) means responsive to said means for sensing for driving said means for displaying.

Claim 3

In a lighting projector generating a beam suitable for performance lighting; capable of beam azimuth and elevation adjustment by an attending operator; and provided with an optical sight with a field of view substantially the same as the beam mounted to said projector for aiming it; the improvement comprising: (a) means for sensing beam azimuth and elevation; (b) means for storing values corresponding to a plurality of desired azimuth and elevation settings; (c) means for determining the difference between said stored values and a current value obtained from sensing; and (d) means located at said projector so as to be visible to said operator for displaying said difference.

Claim 4

In a lighting projector generating a beam suitable for performance lighting; capable of beam azimuth and elevation adjustment by an attending operator; and provided with an optical sight with a field of view substantially the same as the beam mounted to said projector for aiming it; the improvement comprising: (a) means for sensing beam azimuth and elevation; (b) means for storing values corresponding to a plurality of desired azimuth and elevation settings; (c) means for determining the difference between said stored values and a current value obtained from sensing; and (d) means located at said projector so as to be visible to said operator for displaying said difference.

Claim 5

Apparatus according to claim 1 or 2 and further including said means for displaying within the optical sight area.

Claim 6

In a light projector generating a beam suitable for performance lighting and capable of beam azimuth and elevation adjustment, the improvement comprising a viewfinder for aiming said projector, wherein said viewfinder is responsive to non-visible light, whereby the current azimuth and elevation adjustment of said beam may be determined.

Claim 7

In a light projector generating a beam suitable for performance lighting and capable of beam azimuth and elevation adjustment, the improvement comprising a viewfinder for aiming said projector, wherein said viewfinder is responsive to non-visible light, whereby the current azimuth and elevation adjustment of said beam may be determined.

Claim 8

Apparatus according to claim 4, wherein said viewfinder is responsive to infrared light.

Claim 9

Apparatus according to claim 4 and further including means to provide selective filtration of the projector's beam to provide a source of said non-visible light.

Claim 10

Apparatus according to claim 4 and further including a second source providing the non-visible light, said second source coupled to said light projector so as to follow it in azimuth and elevation.

Claim 11

In a light projector generating a beam suitable for performance lighting and capable of beam azimuth and elevation adjustment by an attending operator, the improvement comprising: (a) a means for sighting said projector comprising an imaging device with a field of view substantially the same as the beam mounted to said projector; (b) a display device at a location remote from said projector; and (c) means connecting said imaging device and said display device, whereby the current azimuth and elevation of said projector may be determined.

Claim 12

In a light projector generating a beam suitable for performance lighting and capable of beam azimuth and elevation adjustment by an attending operator, the improvement comprising: (a) a means for sighting said projector comprising an imaging device with a field of view substantially the same as the beam mounted to said projector; (b) a display device at a location remote from said projector; and (c) means connecting said imaging device and said display device, whereby the current azimuth and elevation of said projector may be determined.

Claim 13

In a light projector generating a beam suitable for performance lighting; capable of beam azimuth and elevation adjustment; and including means for adjusting beam azimuth and elevation from a remote location, the improvement comprising: (a) means for sighting comprising an imaging device with a field of view substantially the same as the beam; (b) a display device at said remote location; and (c) means connecting said imaging device and said display device, whereby the current azimuth and elevation adjustment of said beam may be determined.

Claim 14

In a light projector generating a beam suitable for performance lighting; capable of beam azimuth and elevation adjustment; and including means for adjusting beam azimuth and elevation from a remote location, the improvement comprising: (a) means for sighting comprising an imaging device with a field of view substantially the same as the beam; (b) a display device at said remote location; and (c) means connecting said imaging device and said display device, whereby the current azimuth and elevation adjustment of said beam may be determined.

Claim 15

Apparatus according to claim 9 and further including means to display indicia or data in the display area corresponding to beam parameters.

Claim 16

Apparatus according to claim 8 or 9, said projector further including means to vary the size of said beam during use, and further including means for providing symbols in the display corresponding to beam sizes resulting from various adjustments of said beam size varying means.

Claim 17

Apparatus according to claim 8 or 9, said projector further including means to vary the size of said beam during use and further including means responsive to said beam size varying means to generate an indication of current beam size in the display.

Claim 18

Apparatus according to claim 8 or 9 and further including electronic means to superimpose indicia or data over the image in the display.

Claim 19

Apparatus according to claim 8 or 9, wherein said imaging device is sensitive to non-visible light.

Claim 20

Apparatus according to claim 14, wherein said imaging device is sensitive to infrared light.

Claim 21

Apparatus according to claim 14 and further including means for selective filtration of the projector's beam to provide a source of non-visible light.

Claim 22

Apparatus according to claim 14 and further including a separate source providing non-visible light, and means coupling said second source to be responsive to the same beam adjusting means as said projector.

Claim 23

In a light projector generating a beam suitable for performance lighting and capable of beam azimuth and elevation adjustment, the improvement comprising: (a) means for sensing beam azimuth and elevation; (b) digital displays for displaying values corresponding to beam azimuth and elevation; and (c) means responsive to said sensing means for driving said digital displays.

Claim 24

In a light projector generating a beam suitable for performance lighting and capable of beam azimuth and elevation adjustment, the improvement comprising: (a) means for sensing beam azimuth and elevation; (b) digital displays for displaying values corresponding to beam azimuth and elevation; and (c) means responsive to said sensing means for driving said digital displays.

Claim 25

Apparatus according to claim 18 and further including: (a) means for storing values corresponding to desired azimuth and elevation settings; (b) means for determining the difference between said stored values and a current value obtained from said sensing means; and (c) means displaying said difference.

Claim 26

Apparatus according to claim 19 and further including additional storage means for storing values corresponding to other beam parameters.

Claim 27

Apparatus according to claim 18 or 19 and further including means to interface said system with external devices.

Claim 28

Apparatus according to claim 9 or 18 and further including: (a) means for storing values corresponding to desired azimuth and elevation settings; and (b) means for adjusting beam azimuth and elevation from a remote location, said means capable of conforming beam azimuth and elevation to said stored values.

Claim 29

Apparatus according to claim 22 and further including means for automatically extinguishing the beam during transit to a stored azimuth and elevation setting.

Claim 30

Apparatus according to claim 22 and further including means responsive to beam size adjustments for compensating adjustments in beam elevation.

Claim 31

Apparatus according to claim 22 and further including: (a) means for storing values corresponding to beam parameters other than azimuth and elevation; and (b) means for conforming said other parameters to said stored values.

Claim 32

Apparatus according to claim 25 and further including means to interface said system with an external device.

Claim 33

Apparatus according to claim 1, 8 or 18 and further including means permitting control of beam intensity through an interface with an external device.

Claim 34

In a lighting system including a plurality of light projectors, said projectors each generating a beam suitable for performance lighting and capable of beam azimuth and elevation adjustment from a remote location, said projectors responsive to a control system, said control system including means for storing values corresponding to a plurality of desired azimuth and elevation settings for each of a plurality of said projectors, means for conforming the azimuth and elevation of said projectors to a stored setting, and means for selecting the stored setting to which the azimuth and elevation of said projectors are to be conformed, said control system comprising: (a) a plurality of local control systems, said local control systems: i. adapted to accept a setting selection input from the output of a supervisory control means; ii. including a local memory storing values corresponding to a plurality of desired azimuth and elevation settings for at least one projector; iii. including means causing the azimuth and elevation of at least one of said projectors to be conformed to the desired azimuth and elevation setting those corresponding values are stored in said local memory means, as selected by said input from the supervisory control means; (b) a supervisory control means capable of producing a plurality of output conditions causing stored setting value selections by said local control systems; and (c) means to connect the output of said supervisory control means to the inputs of a plurality of said local control systems.

Claim 35

In a lighting system including a plurality of light projectors, said projectors each generating a beam suitable for performance lighting and capable of beam azimuth and elevation adjustment from a remote location, said projectors responsive to a control system, said control system including means for storing values corresponding to a plurality of desired azimuth and elevation settings for each of a plurality of said projectors, means for conforming the azimuth and elevation of said projectors to a stored setting, and means for selecting the stored setting to which the azimuth and elevation of said projectors are to be conformed, said control system comprising: (a) a plurality of local control systems, said local control systems: i. adapted to accept a setting selection input from the output of a supervisory control means; ii. including a local memory storing values corresponding to a plurality of desired azimuth and elevation settings for at least one projector; iii. including means causing the azimuth and elevation of at least one of said projectors to be conformed to the desired azimuth and elevation setting those corresponding values are stored in said local memory means, as selected by said input from the supervisory control means; (b) a supervisory control means capable of producing a plurality of output conditions causing stored setting value selections by said local control systems; and (c) means to connect the output of said supervisory control means to the inputs of a plurality of said local control systems.

Claim 36

Apparatus according to claim 28, wherein one local control system is provided for each of said projectors.

Claim 37

Apparatus according to claim 28, said lighting system further including a plurality of light projectors of fixed beam azimuth and elevation, dimming means for controlling the intensity of said fixed projectors; said dimming means responsive to control inputs; said supervisory control means providing outputs as control inputs to said dimming means.

Claim 38

Apparatus according to claim 28 and further including: (a) means for storing values corresponding to beam parameters other than azimuth and elevation in said local memory means; and (b) means for conforming said other beam parameters to settings corresponding to said stored values.

Claim 39

Apparatus according to claim 28 or 31, and further comprising means to transfer data between said supervisory control means and said local control systems.

Claim 40

Apparatus according to claim 28 or 31, and further comprising means to transfer data between said local memory means of a plurality of said local control systems and a common data carrier.

Claim 41

Apparatus according to claim 28 or 31, and further comprising means to adjust parameters of said projectors from said supervisory control means.

Claim 42

Apparatus according to claim 28 or 31, and further comprising separate output conditions of said supervisory control means causing stored setting value selection and causing said projectors parameters to be conformed to said selection.

Claim 43

In a lighting projector generating a beam suitable for performance lighting; capable of beam azimuth and elevation adjustment by an attending operator; and provided with an optical sight with a field of view substantially the same as the beam mounted to said projector for aiming it; said projector being provided with a means for said operator to vary the size of said beam during use, the improvement comprising means for producing an indication in said optical sight of the beam size resulting from various adjustments of said beam size varying means.

Claim 44

In a lighting projector generating a beam suitable for performance lighting; capable of beam azimuth and elevation adjustment by an attending operator; and provided with an optical sight with a field of view substantially the same as the beam mounted to said projector for aiming it; said projector being provided with a means for said operator to vary the size of said beam during use, the improvement comprising means for producing an indication in said optical sight of the beam size resulting from various adjustments of said beam size varying means.

Claim 47

In a lighting projector generating a beam suitable for performance lighting; capable of beam azimuth and elevation adjustment by an attending operator, the improvement comprising: (a) means for sensing beam azimuth and elevation; (b) means for storing values corresponding to a plurality of desired azimuth and elevation settings; (c) means for determining the difference between said stored values and a current value obtained from said means for sensing; and (d) means located at said projector so as to be visible to said operator for displaying said difference.

Claim 48

In a lighting projector generating a beam suitable for performance lighting; capable of beam azimuth and elevation adjustment by an attending operator, the improvement comprising: (a) means for sensing beam azimuth and elevation; (b) means for storing values corresponding to a plurality of desired azimuth and elevation settings; (c) means for determining the difference between said stored values and a current value obtained from said means for sensing; and (d) means located at said projector so as to be visible to said operator for displaying said difference.