Chromatic planar optic display system

• US RE42,992 E1
• Filed: 09/04/2007
• Issued: 12/06/2011
• Est. Priority Date: 02/19/2003
• Status: Expired due to Fees

• Current Assignee: Mirage Innovations Limited
• Original Assignee: Mirage Innovations Limited
• Inventors: David, Yair
• Primary Examiner(s): Mengistu, Amare
• Assistant Examiner(s): HOLTON, STEVEN E
• Application Number:
  US11/896,645
• Time in Patent Office: 1,554 Days
• Field of Search: 345 7- 9, 345/204, 359/13, 359/15, 359/16, 359/556, 359/563, 359/630
• US Class Current: 345/7
• CPC Class Codes: G02B 2027/0116 comprising devices for correcting chromatic aberration
• CPC Class Codes: G02B 27/0103 comprising holographic elements
• CPC Class Codes: G02B 6/0016 Grooves, prisms, gratings, scattering particles or rough surfaces
• CPC Class Codes: G02B 6/0038 Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
• CPC Class Codes: G09G 3/003 to produce spatial visual effects
• CPC Class Codes: G09G 5/06 using colour palettes, e.g. look-up tables

Abstract

A compact chromatic display system to be used by a viewer to view a virtual image including: (a) an output optical device, which enables the viewer to see through it a chromatic virtual image. (b) an input optical device. (c) an optical arrangement for directing light from the input optical device to the output optical device and (d) a Shift Adjusted Display (SAD) device that radiates chromatic image.

Claims

1. A compact display system to be used by a viewer to view a virtual image, the system comprising:

(a) an output optical device, through which the viewer looks at a virtual image;

(b) an input optical device;

(c) an optical arrangement for directing light from said input optical device to said output optical device,

(d) a Complete Shift Adjusted Display (CSAD) device that radiates images, said CSAD being operatively connected with said optical arrangement,

wherein said optical arrangement includes at least two transparent substrate plates, and wherein said output optical device includes at least two diffractive optical elements carried by said transparent substrate plates.

2. The compact display system as in claim 1, wherein said input optical device includes at least two diffractive optical elements carried by said transparent substrate plates.

3. The compact display system as in claim 1, wherein at least one of said transparent substrate plates is at least partially coated with a light-reflective coating.

4. The compact display system as in claim 2 7, wherein each one of said diffractive optical elements of said input optical device has a different grating spacing from other said diffractive optical elements of said input optical device.

5. The compact display system as in claim 2 1, wherein each one of said diffractive optical elements of said output optical device has a different grating spacing from other said diffractive optical elements of said output optical device.

6. The compact display system as in claim 2 1, wherein each one of said transparent substrate plates has a different thickness from other said transparent substrate plates.

38. The compact display system as in claim 1, wherein said input optical device includes at least two diffractive optical elements carried by said transparent substrate plates.

7. A compact display system to be used by a viewer to view a virtual image, the system comprising:

(a) an output optical device, through which the viewer looks at a virtual image;

(b) an input optical device;

(c) an optical arrangement for directing light from said input optical device to said output optical device,

(d) a Complete Shift Adjusted Display (CSAD) device that radiates images, said CSAD being operatively connected with said optical arrangement,

wherein said optical arrangement includes at least two transparent substrate plates, and wherein said input optical device includes at least two diffractive optical elements carried by said transparent substrate plates.

8. The compact display system as in claim 7, wherein at least one of said transparent substrate plates is at least partially coated with a light-reflective coating.

9. A method to be used by a viewer to view a virtual image, the method comprising the steps of:

(a) providing said viewer with a compact planar optic display system including;

(i) a first transparent substrate plate;

(ii) at least a second transparent substrate plate;

(iii) at least two input diffractive optical elements canied carried by said transparent substrate plates, each one of said input diffractive optical elements being carried by one of said transparent plates;

and

(iv) at least two output diffractive optical elements carried by said transparent substrate plates, each one of said output diffractive optical elements being carried by one of said transparent plates, and;

(v) a Complete Shift Adjusted Display (CSAD) device;

(b) connecting said compact planar optic display system to an active video source;

(c) causing said compact planar optic display system to display an output virtual image, and

(d) positioning said compact planar optic display system in orientation and location, with respect to an eye of said viewer, so as to enable said viewer to observe said output virtual image.

33. A method according to claim 9, wherein at least one of said transparent substrate plates is at least partially coated with a light-reflective coating.

34. A method according to claim 9, wherein each of said input diffractive optical elements has a different grating spacing from other input diffractive optical elements.

35. A method according to claim 9, wherein each of said output diffractive optical elements has a different grating spacing from other output diffractive optical elements.

36. A method according to claim 9, wherein each of said transparent substrate plates has a different thickness from other said transparent substrate plates.

37. A method according to claim 9, wherein the compact planar optic display system further includes a Complete Shift Adjusted Display (CSAD) device.

10. A compact chromatic display system to be used by a viewer to view a corrected chromatic virtual image, the system comprising:

(a) an output optical device, enabling the viewer to see the corrected chromatic virtual image therethrough;

(b) an input optical device;

(c) an optical arrangement for directing light from said input optical device to said output optical device, and

(d) a Shift Adjusted Display (SAD) device that radiates a chromatic image, said SAD being operatively connected with said input optical device,

wherein said SAD device is an Intensity Shift Adjusted Display (ISAD) device, and wherein said ISAD is configured to separately modify an intensity of each sub-pixel of said chromatic image so as to effect a transformation of a wavelength-dependent intensity distortion and an intensity distortion dependent on pixel position, said distortions introduced by at least one of said input optical device, said optical arrangement, and said output optical device, thereby producing the corrected chromatic virtual image.

11. The display system as in claim 10, wherein said transformation is substantially independent of input intensity.

12. A compact display system compiising comprising two compact display systems as in claim 10.

13. The display system as in claim 10, wherein said optical arrangement includes a transparent substrate plate.

14. The display system as in claim 13, wherein at least one of said input optical device and said output optical device includes at least one diffractive optical element.

15. The display system as in claim 10, wherein said ISAD includes a transforming module for transforming an intensity radiated by said light-radiating display device so as to correct said intensity distortions.

16. The display system as in claim 11, wherein said ISAD includes a transforming module for transforming said intensity so as to correct said intensity distortions.

17. A compact display system comprising two compact display systems as in claim 11.

18. The display system as in claim 13, wherein said optical arrangement is configured such that light emitted by said ISAD is transmitted by total internal reflection within said transparent substrate plate.

19. The display system as in claim 18, wherein at least one of said input optical device and said output optical device includes at least one diffractive optical element.

20. The display system as in claim 15, wherein said transforming module includes a look-up table (LUT) for storing correction values for each said sub-pixel.

21. The display system as in claim 15, wherein said transforming module includes a memory array for storing correction values for each said sub-pixel.

39. A compact display system comprising two compact display systems as in claim 11.

22. A compact chromatic display system to be used by a viewer to view a corrected chromatic virtual image, the system comprising:

(a) an output optical device, which enables said viewer to see the corrected chromatic virtual image therethrough;

(b) an input optical device;

(c) an optical arrangement for directing light from said input optical device to said output optical device, and

(d) a Shift Adjusted Display (SAD) device that radiates a chromatic image, said SAD being operatively connected with said input optical device,

wherein said SAD device is an Intensity Shift Adjusted Display (ISAD) device, the system configured to transmit at least two light beams along different pathways through said input optical device, within said optical arrangement and through said output optical device, such that said pathways produce transmission intensity distortions of differing magnitude,

and wherein said ISAD is configured to separately modify an intensity of each sub-pixel of said chromatic image so as to transform a wavelength-dependent intensity distortion and said transmission intensity distortions introduced by at least one of said input optical device, said optical arrangement, and said output optical device, thereby producing the corrected chromatic virtual image.

23. The display system as in claim 22, wherein said transformation is substantially independent of input intensity.

24. A compact display system comprising two compact display systems as in claim 22.

25. The display system as in claim 22, wherein said optical arrangement includes a transparent substrate plate.

26. The display system as in claim 22, wherein said ISAD includes a transforming module for transforming said intensity so as to correct said wavelength-dependent intensity distortion and said transmission intensity distortions.

27. A compact display system comprising two compact display systems as in claim 23.

28. The display system as in claim 25, wherein at least one of said input optical device and said output optical device includes at least one diffractive optical element.

29. The display system as in claim 25, wherein said optical arrangement is configured such that light emitted by said ISAD is transmitted by total internal reflection within said transparent substrate plate.

30. The display system as in claim 29, wherein at least one of said input optical device and said output optical device includes at least one diffractive optical element.

31. The display system as in claim 26, wherein said transforming module includes a look-up table (LUT) for storing correction values for each said sub-pixel.

32. The display system as in claim 26, wherein said transforming module includes a memory array for storing correction values for each said sub-pixel.

40. The display system as in claim 22, wherein said transformation is substantially independent of input intensity.

41. A compact display system comprising two compact display systems as in claim 22.

42. The display system as in claim 22, wherein said optical arrangement includes a transparent substrate plate.

43. The display system as in claim 22, wherein said ISAD includes a transforming module for transforming said intensity so as to correct said wavelength-dependent intensity distortion and said transmission intensity distortions.

44. A compact display system comprising two compact display systems as in claim 40.

45. The display system as in claim 42, wherein at least one of said input optical device and said output optical device includes at least one diffractive optical element.

46. The display system as in claim 42, wherein said optical arrangement is configured such that light emitted by said ISAD is transmitted by total internal reflection within said transparent substrate plate.

47. The display system as in claim 46, wherein at least one of said input optical device and said output optical device includes at least one diffractive optical element.

48. The display system as in claim 43, wherein said transforming module includes a look-up table (LUT) for storing correction values for each said sub-pixel.

49. The display system as in claim 43, wherein said transforming module includes a memory array for storing correction values for each said sub-pixel.