Methods and improvements to spectral monitoring of theatre lighting devices

• US 10,111,295 B1
• Filed: 10/17/2017
• Issued: 10/23/2018
• Est. Priority Date: 10/17/2017
• Status: Active Grant

• Current Assignee: Richard S. Belliveau
• Original Assignee: Richard S. Belliveau
• Inventors: Belliveau, Richard S.
• Primary Examiner(s): Tran, Thuy Vinh
• Application Number:
  US15/786,360
• Time in Patent Office: 371 Days
• Field of Search: 315293, 362362
• CPC Class Codes: F21V 15/01 Housings, e.g. material or assembling of housing parts F21V15/02 takes precedence housings forming signs or letters G09F13/04
• CPC Class Codes: F21V 21/14 Adjustable mountings
• CPC Class Codes: F21V 23/00 Arrangement of electric circuit elements in or on lighting devices characterised by cooling arrangements F21V29/508
• CPC Class Codes: F21V 23/0442 activated by means of a sensor, e.g. motion or photodetectors
• CPC Class Codes: F21V 5/008 Combination of two or more successive refractors along an optical axis
• CPC Class Codes: F21W 2131/406 for theatres, stages or film studios
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/10 Controlling the intensity of the light
• CPC Class Codes: H05B 45/24 using electrical feedback from LEDs or from LED modules
• CPC Class Codes: H05B 47/19 via wireless transmission

Abstract

An apparatus including a theater lighting device including a lamp housing; a base housing; and an internal spectral sensor. The lamp housing is rotationally mounted to the base housing; and includes a plurality of light sources, and lenses which cooperate to project a final output light; and wherein residual light is received by the internal spectral sensor from internal reflections of a first lens of the plurality of lenses and the residual light is converted to spectral data. The spectral sensor is a multispectral filter array type. The theater lighting device further includes a microprocessor; and a memory, wherein the memory stores a first set of data for a plurality of electronically adjustable parameters of the theater lighting device. The microprocessor is programmed to receive a first command and in response put the theater lighting device in a first state.

Claims

1. An apparatus comprising

a theatre lighting device comprising:

a lamp housing;

a base housing;

and an internal spectral sensor;

wherein the lamp housing is rotationally mounted to the base housing;

wherein the lamp housing is comprised of a plurality of light sources, and a plurality of lenses wherein the plurality of light sources and the plurality of lenses cooperate to project a final output light;

wherein residual light is received by the internal spectral sensor from internal reflections of a first lens of the plurality of lenses and the residual light is converted to spectral data by the internal spectral sensor.

2. The apparatus of claim 1 wherein

the internal spectral sensor is a multispectral filter array type.

3. The apparatus of claim 1 wherein the theatre lighting device is further comprised of:

a microprocessor; and

a memory;

wherein the memory stores a first set of data for a plurality of electronically adjustable parameters of the theatre lighting device;

wherein the microprocessor is programmed to receive a first command and in response to the first command to put the theatre lighting device in a first state in which the plurality of electronically adjustable parameters are set in accordance with the first set of data; and

wherein the apparatus is further comprised of an external spectral sensor which is external to the theatre lighting device; and

wherein when the theatre lighting device is in the first state, the external spectral sensor takes a first measurement of the final light output.

4. The apparatus of claim 3 wherein

the internal spectral sensor is configured to take a second measurement of the residual light and the microprocessor acts upon the operational software in memory to store the second measurement within the memory.

5. The apparatus of claim 4 wherein the theatre lighting device is further comprised of:

a communications port;

wherein the communications port is configured to gather a first input data from the external spectral sensor first measurement and the microprocessor is programmed to cause the first measurement to be stored within the memory.

6. The theatre lighting device of claim 5 wherein

the communications port is a wireless communication port.

7. The theatre lighting device of claim 5 wherein

the microprocessor is programmed by operational software stored in the memory to calibrate the first measurement with the second measurement.

8. A theatre lighting device comprising

a lamp housing;

a base housing;

and a spectral sensor;

wherein the lamp housing is rotationally mounted to the base housing;

wherein the lamp housing is comprised of a plurality of light sources, and a plurality of lenses;

wherein the plurality of light sources and the plurality of lenses are configured to cooperate to project a final output light;

wherein residual light is received by the spectral sensor from internal reflections created between a first lens and a second lens of the plurality of lenses;

and wherein the residual light is converted to spectral data.

9. The theatre lighting device of claim 8 wherein

the spectral sensor is a multispectral filter array type.

10. The theatre lighting device of claim 8 further comprising:

a microprocessor

a memory; and

wherein the spectral data is stored within the memory.

11. The theatre lighting device of claim 10 further comprising

a user interface comprising a visual display.

12. The theatre lighting device of claim 10 wherein

the microprocessor is configured to format the spectral data into pixel control information to be displayed on a visual display.

13. The theatre lighting device of claim 12 wherein

the pixel control information displays hue and saturation information.

14. The theatre lighting device of claim 12 wherein

the pixel control information displays color temperature information.

15. The theatre lighting device of claim 12 wherein

the pixel control information displays International Commission on Illumination information.

16. The theatre lighting device of claim 12 wherein

the pixel control information displays color rendering index information.

17. The theatre lighting device of claim 12 wherein

the pixel control information displays lighting color calculation procedure (TM30) standard information.

18. A theatre lighting device comprising:

a lamp housing;

a plurality of light sources;

and a plurality of lenses;

a spectral sensor;

wherein the plurality of light sources and the plurality of lenses are configured to cooperate to project a final output light;

wherein residual light is received by the spectral sensor from the internal reflections created by a first lens of the plurality of lenses;

wherein the spectral sensor is located within the lamp housing;

wherein the spectral sensor is fixed to the edge of the first lens of the plurality of lenses and wherein the spectral sensor is a multispectral filter array type.

19. A theatre lighting device comprising:

a lamp housing;

a plurality of light sources;

a plurality of lenses;

a spectral sensor;

a microprocessor;

a memory;

a user interface comprising a visual display; and

a lens tube; and

wherein residual light is received by the spectral sensor from the internal reflections created between a first lens and a second lens of the plurality of lenses;

wherein the spectral sensor converts the received residual light to spectral data;

wherein the microprocessor is programmed to cause the spectral data to be stored in the memory;

wherein the visual display is configured to display the spectral data.

20. The theatre lighting device of claim 19 wherein

the first lens and second lens are fixed within the lens tube.

21. The theatre lighting device of claim 19 wherein

the residual light received by the spectral sensor passes through a port in the lens tube.

22. The theatre lighting device of claim 19 wherein

the spectral data is displayed as a visible spectral plot.

23. The theatre lighting device of claim 19 wherein

the spectral data is hue and saturation.

24. The theatre lighting device of claim 19 wherein

the spectral data is color temperature.

25. The theatre lighting device of claim 19 wherein

the spectral data is International Commission on Illumination chromaticity coordinates.

26. The theatre lighting device of claim 19 wherein

the spectral data is color rendering index data.

27. The theatre lighting device of claim 19 wherein

the spectral data is lighting color calculation procedure (TM30) standard data.

28. A theatre lighting device comprising:

a lamp housing; and

a base housing, wherein the lamp housing is rotationally mounted to the base housing;

a plurality of light sources;

a lens;

a microprocessor;

a memory;

an output window;

a spectral sensor;

a user interface comprising a visual display;

wherein the plurality of light sources, the lens, and the output window are configured to cooperate to project a final output light;

wherein residual light is received by the spectral sensor from the internal reflections created by the output window;

wherein the spectral sensor converts the residual light to spectral data;

wherein the memory stores a first set of data for controlling a plurality of electronically adjustable parameters for the theatre lighting device; and

wherein the microprocessor is programmed by computer software to receive a first command and in response to the first command to cause the microprocessor to put the theatre lighting device in a first state in which the plurality of electronically adjustable parameters are set in accordance with the first set of data; and

wherein the first set of data is a measurement of the spectral data.

29. The theatre lighting device of claim 28 further comprising

a communications port;

and

wherein the communications port receives the spectral data from an external spectral sensor and wherein the microprocessor is programmed by computer software to store the spectral data in the memory.

30. A theatre lighting device comprising:

a lamp housing; and

a base housing, wherein the lamp housing is rotationally mounted to the base housing;

a plurality of light sources;

a plurality of lenses;

a memory;

an output window;

a spectral sensor;

a user interface comprising a visual display;

wherein the plurality of light sources and the plurality of lenses, are configured to cooperate to project a final output light;

wherein residual light is received by the spectral sensor from internal reflections;

wherein the spectral sensor converts the residual light to spectral data;

and wherein the spectral sensor in comprised of a plurality of interference filters.

31. The theatre lighting device of claim 30 wherein

the plurality of interference filters are comprised of different spectral wavelengths in a visible spectrum arranged to forty nanometers full half width.

32. The theatre lighting device of claim 31 wherein

the internal reflections are propagated from a first lens of the plurality of lenses.

33. The theatre lighting device of claim 30 wherein

the internal reflections are propagated from between a first lens of the plurality of lenses and a second lens of the plurality of lenses.

34. The theatre lighting device of claim 30 wherein

the internal reflections are propagated from the output window.

35. The theatre lighting device of claim 30 wherein

the internal reflections are propagated from between the output window and a first lens of the plurality of lenses.

36. A method comprising

projecting a final output light from a theatre lighting device by using a plurality of light sources and the plurality of lenses of the theatre lighting device;

and

receiving residual light by an internal spectral sensor, internal to the theatre lighting device, from internal reflections of a first lens of the plurality of lenses and converting the residual light to spectral data by use of the internal spectral sensor.

37. The method of claim 36 wherein

the internal spectral sensor is a multispectral filter array type.

38. The method of claim 36 further comprising

storing a first set of data including a plurality of electronically adjustable parameters of the theatre lighting device;

receiving a first command from a microprocessor and in response to the first command putting the theatre lighting device in a first state in which the plurality of electronically adjustable parameters are set in accordance with the first set of data; and

using an external spectral sensor, which is external to the theatre lighting device, to take a measurement of the final light output.

39. The method of claim 36 further comprising

taking a measurement of the residual light by using the internal spectral sensor;

and

storing the measurement of the residual light within a memory.

40. The method of claim 39 wherein

the theatre lighting device is further comprised of:

a communications port;

wherein the communications port is configured to gather data regarding the measurement of the final light output and the microprocessor is programmed to cause the measurement of the final light output to be stored within the memory.

41. The theatre lighting device of claim 40 wherein

the communications port is a wireless communication port.

42. The theatre lighting device of claim 41 further comprising

calibrating the measurement of the final light output with the measurement of the residual light.

43. A method comprising

projecting a final output light from a cooperation of a plurality of light sources and a plurality of lenses;

receiving residual light from internal reflections created between a first lens and a second lens of the plurality of lenses;

and converting the residual light to spectral data by use of a spectral sensor.

44. The method of claim 43 wherein

the spectral sensor is a multispectral filter array type.

45. The method claim 43 further comprising:

storing the spectral data within a memory.

46. The method of claim 43 further comprising

formatting the spectral data into pixel control information and displaying on the visual display.

47. The method of claim 46 wherein

the pixel control information displays hue and saturation information.

48. The method of claim 46 wherein

the pixel control information displays color temperature information.

49. The method of claim 46 wherein

the pixel control information displays International Commission on Illumination information.

50. The method of claim 46 wherein

the pixel control information displays color rendering index information.

51. The method of claim 46 wherein

the pixel control information displays lighting color calibration procedure (TM30) standard information.

52. A method comprising

projecting a final output light from a cooperation of a plurality of light sources and a plurality of lenses;

receiving residual light by a spectral sensor from internal reflections created by a first lens of the plurality of lenses;

wherein the spectral sensor is located within a lamp housing;

wherein the spectral sensor is fixed to the edge of the first lens of the plurality of lenses and wherein the spectral sensor is a multispectral filter array type.