METHOD AND SYSTEM FOR CONTROLLING POINT SPREAD OF AN OBJECT

• US 20110188134A1
• Filed: 04/22/2010
• Published: 08/04/2011
• Est. Priority Date: 03/17/2002
• Status: Abandoned Application

• Current Assignee: IGT (International Game Technology)
• Original Assignee: Pure Depth Limited
• Inventors: Evanicky, Daniel, Bell, Gareth Paul, Searle, Mark John, Engel, Gabriel Damon
• Application Number:
  US12/765,670
• Publication Number:
  US 20110188134A1
• Time in Patent Office: Days
• US Class Current: 359/737
• CPC Class Codes: G02B 27/46 Systems using spatial filters
• CPC Class Codes: G02F 1/133504 Diffusing, scattering, diffracting elements associated to illuminating devices G02F1/133606

Abstract

A method of controlling a point spread of an object is disclosed. The method includes determining a first value of a characteristic of an optical component of a display, wherein the display includes a first display screen and a second display screen, and wherein the first and second display screens overlap. The method also includes determining a position for the optical component based upon the first value of the characteristic by determining a distance from an origin of the object to the position based upon the first value of the characteristic.

Claims

1. A method of controlling a point spread of an object, said method comprising:

determining a first value of a characteristic of an optical component of a display, wherein said display comprises a first display screen and a second display screen, and wherein said first and second display screens overlap; and

determining a position for said optical component based upon said first value of said characteristic by determining a distance from an origin of said object to said position based upon said first value of said characteristic.

2. The method of claim 1, wherein said object comprises an image.

3. The method of claim 1 further comprising:

adjusting said optical component;

determining a second value of said characteristic of said optical component; and

determining a second position for said optical component based upon said second value of said characteristic.

4. The method of claim 1, wherein said origin is associated with said first display screen, and wherein said object is displayed on said first display screen.

5. The method of claim 1, wherein said determining further comprises determining said distance based upon a refractive index of a display screen selected from a group consisting of said first display screen and said second display screen.

6. The method of claim 1, wherein said first and second display screens are each selected from a group consisting of a liquid crystal display, an organic light emitting diode display, and a transparent organic light emitting diode display.

7. The method of claim 1, wherein said characteristic is associated with optical transmission through said optical component.

8. The method of claim 1, wherein said optical component is selected from a group consisting of a spatial filter, a prismatic filter, a spatial diffuser, and a holographic diffuser.

9. The method of claim 1, wherein said determining further comprises determining said position based upon a second characteristic selected from a group consisting of Moiré

interference and blurriness.

10. A method of controlling a point spread of an object, said method comprising:

determining a first value of a characteristic of an optical component of a projection system, wherein said projection system is operable to project an image; and

determining a position for said optical component based upon said first value of said characteristic by determining a distance from an origin of said object to said position based upon said first value of said characteristic.

11. The method of claim 10, wherein said object comprises said image.

12. The method of claim 10 further comprising:

adjusting said optical component;

determining a second value of said characteristic of said optical component; and

determining a second position for said optical component based upon said second value of said characteristic.

13. The method of claim 10, wherein said characteristic is associated with optical transmission through said optical component.

14. The method of claim 10, wherein said optical component is selected from a group consisting of a spatial filter, a prismatic filter, a spatial diffuser, and a holographic diffuser.

15. The method of claim 10, wherein said determining further comprises determining said position based upon a second characteristic selected from a group consisting of Moiré

interference and blurriness.

16. A method of controlling a point spread of an object, said method comprising:

determining a first value of a characteristic of an optical component of a display, wherein said display comprises a first display screen and a second display screen, and wherein said first and second display screens overlap; and

determining a position for said optical component based upon said first value of said characteristic by determining a position operable to reduce Moiré

interference resulting from an overlap of said first and second display screens.

17. The method of claim 16, wherein said determining further comprises determining a distance from an origin of said object to said position based upon said first value of said characteristic.

18. The method of claim 16, wherein said object comprises an image.

19. The method of claim 16 further comprising:

adjusting said optical component;

determining a second value of said characteristic of said optical component; and

determining a second position for said optical component based upon said second value of said characteristic.

20. The method of claim 16, wherein said origin is associated with said first display screen, and wherein said object is displayed on said first display screen.

21. The method of claim 16, wherein said determining further comprises determining said distance based upon a refractive index of a display screen selected from a group consisting of said first display screen and said second display screen.

22. The method of claim 16, wherein said first and second display screens are each selected from a group consisting of a liquid crystal display, an organic light emitting diode display, and a transparent organic light emitting diode display.

23. The method of claim 16, wherein said characteristic is associated with optical transmission through said optical component.

24. The method of claim 16, wherein said optical component is selected from a group consisting of a spatial filter, a prismatic filter, a spatial diffuser, and a holographic diffuser.

25. The method of claim 16, wherein said determining further comprises determining said position based upon a blurriness associated with said object.