Method and device for creating a facsimile of an image

• US 6,219,093 B1
• Filed: 01/05/1990
• Issued: 04/17/2001
• Est. Priority Date: 01/05/1990
• Status: Expired due to Term

• Current Assignee: Production Resource Group LLC
• Original Assignee: Light and Sound Design Limited
• Inventors: Perry, Scott M.
• Primary Examiner(s): Hsia, Sherrie
• Application Number:
  US07/461,344
• Time in Patent Office: 4,120 Days
• Field of Search: H04/N.718, H04/N.5225, 358/254, 358/93, 358/88, 348/135, 348/143, 348/161, 348/169
• US Class Current: 348/135
• CPC Class Codes: F21W 2131/406 for theatres, stages or film studios
• CPC Class Codes: H04N 23/74 by influencing the scene brightness using illuminating means
• CPC Class Codes: H04N 5/222 Studio circuitry; Studio devices; Studio equipment cameras or camera modules comprising electronic image sensors, or control thereof H04N23/00
• CPC Class Codes: H04N 9/3194 including sensor feedback

Abstract

A method and apparatus for operating an electro-optical array. Images indicative of shapes are obtained in some way, and these images are processed. The processed image is then used to drive an electro-optical array, such as a liquid crystal display, such that some parts of the display are opaque and other parts are transparent. A light source is directed through the liquid crystal array and thereby generates a light signal having the same shape as those parts of the liquid crystal array which are transparent.

Claims

1. A method for generating a facsimile of an image comprising the steps of:

generating signals representative of a particular shape;

arranging said signals into a field matrix of a plurality of pixel signals represenative of location of at least some points of the image field;

providing an array of electro-optical devices each transformable between a first condition and a different second condition in response to electromagnetic stimulation; and

using said pixel signals to stimulate the devices in said array to generate at said array a facsimile of said particular shape.

2. The method of claim 1 wherein said providing an array step includes providing said array of electro-optical devices each transformable between a first opaque condition and a second transparent condition in response to said electromagnetic stimulation.

3. The method of claim 2 wherein the using step includes stimulating the devices in the array corresponding to said pixel signals to generate at said array a transparent facsimile of said particular shape.

4. The method of claim 3 further including projecting electromagnetic radiation through said transparent facsimile.

5. The method of claim 4 further including the step of directing the electromagnetic radiation projected through said transparent facsimile onto a stage.

6. The method of claim 5 wherein the projecting step includes projecting visible light through said transparent facsimile to illuminate said stage.

7. A method as in claim 1 comprising the further step of cooling said electro-optical devices.

8. A method for selectively directing electromagnetic radiation onto an image selected from a field of images comprising the steps of:

generating signals representative of a particular shape;

arranging said signals into a field that includes a matrix of a plurality of pixel signals indicative of said particular shape;

providing an array of electro-optical devices, each device transformable between a first electromagnetically opaque condition and a second electromagnetically transparent condition in response to appropriate applied signals;

projecting electromagnetic radiation onto said electro-optical devices such that said transparent devices pass said electromagnetic radiation and said opaque devices do not pass said radiation; and

applying said pixel signals to said array to transform the electro-optical devices corresponding to said pixel signals to said second condition to generate a transparent facsimile of the related image thereat, said electromagnetic radiation passing through said facsimile onto said selected image.

9. The method of claim 8 wherein the generating step includes generating signals with a camera.

10. The method of claim 9 further including the step of articulating said camera to maintain the selected image within the field of perception.

11. The method of claim 10 further including tracking the selected image to maintain the selected image within the field of perception.

12. The method of claim 10 further comprising positioning the array in a location where whereby said electromagnetic radiation is directed onto the selected image.

13. The method of claim 12 further including providing an interactive device on said selected image and a receiver, said receiver and interactive device cooperating to determine the location of the selected image.

14. A method as in claim 8 comprising the further step of cooling said electro-optical devices.

15. A system for generating a facsimile of an image comprising:

an array of electro-optical devices each transformable between a first condition and a different second condition in response to electromagnetic stimulation,

means for generating signals representative of a particular shape;

means for processing said signals to obtain a plurality of pixel signals each representative of a location and at least intensity to a point of perception of the image;

means for selected the pixel signals representing the perception of the particular shape; and

controlling means for stimulating the devices in said array corresponding to said pixel signals to generate at said array a facsimile of said particular shape in elements of said array.

16. The system of claim 15 wherein the signal generating means is a camera which generates signals representative of the particular shape.

17. The system of claim 16 wherein the means for processing and selecting means includes a digital processor.

18. The system of claim 15 wherein said array is an array of liquid crystal devices, each transformable between a condition of transparency and opacity, in response to said electromagnetic stimulation.

19. The system of claim 18 further including a source of electromagnetic radiation and means for directing the electromagnetic radiation through the array, whereby only that radiation passing those devices which are in transparency are transmitted.

20. The system of claim 19 further including means for tracking the particular shape.

21. A system as in claim 15 further comprising means for cooling said array of electro-optical devices.

22. A method for recreating a color image comprising steps of:

generating signals representative of each of the colors red, green and blue of the image;

arranging the signals of each color into a matrix of a plurality of pixel signals, each matrix representative of location and at least intensity to a point of perception of the color of the image;

providing an array of electro-optical devices for each of the colors red, green and blue, each device transformable between a condition of transparency and opacity in response to electromagnetic stimulation;

stimulating the devices in each array corresponding to correlating color pixel signals to generate at each array a transparent facsimile of the perceived color of the image; and

directing light of the colors red, green and blue through each of the corresponding arrays to recreate the image in color.

23. A method as in claim 22 comprising the further step of cooling said electro-optical devices.