Image projection lighting device and control system

• US 7,210,798 B2
• Filed: 01/17/2003
• Issued: 05/01/2007
• Est. Priority Date: 01/17/2003
• Status: Active Grant

• Current Assignee: Electronic Theatre Controls Incorporated
• Original Assignee: High End Systems Incorporated (Electronic Theatre Controls Incorporated)
• Inventors: Belliveau, Richard S., Jurek, Brian Emerson, Claiborne, Vickie Lynn, Washburn, Jeffrey K., Grivas, Timothy G.
• Primary Examiner(s): Perkey; W. B.
• Assistant Examiner(s): Cruz; Magda
• Application Number:
  US10/346,784
• Publication Number:
  US 20040142103A1
• Time in Patent Office: 1,565 Days
• Field of Search: 353/30, 353/101, 353/121, 353/85, 353/87, 353/122, 359/823, 396 79- 80, 396/82, 396102-104, 348/135, 348/207.99, 362/233
• US Class Current: 353/122
• CPC Class Codes: H05B 47/155 Coordinated control of two or more light sources

Abstract

The methods and apparatus for lighting systems provide a camera integral to a particular image projection lighting device (IPLD) to capture the projected image from the particular IPLD. The captured image can then be sent over a communication system to the operator for viewing on a visual display device such as a computer monitor on a central controller. Using the captured image of the projected image as viewed upon the display device, the operator may then command using the central controller the focusing, position or other parameters of the projected image upon the stage or projection surface to the desired value. The captured image may also be used, such as by a central control system, to automatically, and without operator intervention, adjust parameters of the IPLD to desired values.

Claims

1. A lighting system comprising:

a lamp that projects light onto a projection surface;

an adjustable projection focusing lens that focuses the light projected from said lamp; and

a camera that captures images from the projection surface;

said camera having an auto focus system that produces camera focusing values based on the captured images from the projection surface, wherein the camera focusing values are used to automatically adjust the projection focusing lens.

2. The system of claim 1 further comprising a central controller linked to said camera and said lamp via a communications system and including a visual display device that displays the captured images, wherein an operator using said central controller can manually adjust one or more parameters of the images projected onto the projection surface in response to the captured images displayed on the visual display device.

3. The system of claim 2 wherein the one or more parameters are selected from the group consisting of position, focus, image, intensity, and color.

4. A method comprising:

projecting light from a lamp to a projection focusing lens forming an image on a projection surface;

capturing the image on the projection surface using a camera having a camera focusing lens;

receiving a camera focus value for the camera focusing lens; and

producing a projection locus signal based on the camera locus value.

5. The method of claim 4 further comprising:

transmitting the captured image to a central controller having a visual display device via a communications system; and

displaying the captured image on the visual display device, wherein the camera focusing value is adjusted by commands issued by an operator viewing the captured image at the central controller.

6. A lighting system comprising:

a base

a lamp housing coupled to the base, the lamp housing remotely positionable with respect to the base, the lamp housing comprising;

a light source having an adjustable projection focusing lens; and

a camera having an adjustable camera focusing lens;

a processor coupled to the light source and camera, and wherein the processor produces a camera locus signal that adjusts focus of the camera focusing lens, and wherein the processor produces a projection focus signal that adjusts focus on the projection focusing lens;

wherein the processor receives a first locus value for the camera focusing lens, produces the camera focus signal based on the first focus value, and wherein the processor calculates the projection focus signal based on the first focus value.

7. The lighting system as defined in claim 6 further comprising:

a central controller comprising a visual display device, the central controller coupled to the processor;

wherein the processor receives the first focus value from the central controller.

8. The lighting system as defined in claim 6 wherein the processor resides within the base.

9. A lighting system comprising:

a base;

a lamp housing coupled to the base, the lamp housing remotely positionable with respect to the base, the lamp housing comprising;

a light source having an adjustable projection focusing lens; and

a camera having an adjustable camera focusing lens;

a processor coupled to the light source and camera, and wherein the processor produces a camera focus signal that adjusts focus of the camera focusing lens, and wherein the processor produces a projection focus signal that adjusts focus on the projection focusing lens;

wherein the processor receives a first focus value for the projection focusing lens, produces the projection focus signal based on the first focus value, and wherein the processor calculates the camera focus signal based on the first focus value.

10. The lighting system as defined in claim 9 further comprising:

a central controller comprising a visual display device, the central controller coupled to the processor;

wherein the processor receives the first focus value from the central controller.

11. The lighting system as defined in claim 9 further comprising:

a central controller comprising a visual display device, the central controller coupled to the processor;

wherein a projection surface is not substantially visible to the operator of the central controller except through the visual display device.

12. The lighting system of claim 9 further comprising a housing containing the camera and the light source.

13. The lighting system as defined in claim 9 wherein the processor resides within the base.

14. A lighting system comprising:

a light source having an adjustable projection focusing lens;

a camera having an auto focusing lens;

a processor coupled to the light source and camera, and wherein the processor produces a projection focus signal that adjusts focus on the projection focusing lens;

wherein the processor receives a focus value from the camera indicative of camera focus, and wherein the processor produces the projection focus signal based on the focus value from the camera.

15. The lighting system as defined in claim 14 further comprising:

a central controller comprising a visual display device, the central controller coupled to the processor;

wherein a projection surface is not substantially visible to the operator of the central controller except through the visual display device.

16. A method comprising:

projecting light from a lamp to a projection focusing lens forming an image on a projection surface;

capturing the image on the projection surface using a camera having a camera focusing lens;

receiving a projection focus value from a central controller for the projection focusing lens, and producing a projection focus signal based on the projection focus value; and

producing a camera focus signal based on the projection focus value.

17. The method of claim 16 further comprising:

transmitting the captured image to the central controller having a visual display device via a communications system; and

displaying the captured image on the visual display device, wherein the projection focusing value is adjusted by commands issued by an operator viewing the captured image at the central controller.