Chromatic planar optic display system

• US 20040174348A1
• Filed: 02/19/2003
• Published: 09/09/2004
• Est. Priority Date: 02/19/2003
• Status: Active Grant

• Current Assignee: Mirage Innovations Limited
• Original Assignee: Mirage Innovations Limited
• Inventors: David, Yair
• Granted Patent: US 7,205,960 B2
• Time in Patent Office: Days
• US Class Current: 345/204
• 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 27/4272 having plural diffractive elements positioned sequentially along the optical path
• 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 chromatic display system to be used by a viewer to view a virtual image comprising:

(a) an output optical device, which enables said viewer to see through it a chromatic 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 Shift Adjusted Display (SAD) device that radiates chromatic images.

2. The compact chromatic display system as in claim 1, wherein said Shift Adjusted Display (SAD) device is a Complete Shift Adjusted Display (CSAD) device.

3. The compact chromatic display system as in claim 2, wherein said optical arrangement includes at least two transparent substrate plates.

4. The compact chromatic display system as in claim 3, wherein said output optical device includes at least two diffractive optical elements carried said one diffractive optical element by each said transparent substrate plate.

5. The compact chromatic display system as in claim 3, wherein said input optical device includes at least two diffractive optical elements carried said one diffractive optical element by each said transparent substrate plate.

6. The compact chromatic display system as in claim 4, wherein said input optical device includes at least two diffractive optical elements carried said one diffractive optical element by each said transparent substrate plate.

7. The compact chromatic display system as in claim 6, further comprising at least two additional diffractive optical element being positioned between said input optical device and said output optical device, at least one said additional diffractive optical element being positioned on each said transparent substrate plate.

8. The compact chromatic display system as in claim 6, wherein each one of said diffractive optical elements of said input optical device have different grating spacing from said other diffractive optical elements of said input optical device.

9. The compact chromatic display system as in claim 6, wherein each one of said diffractive optical elements of said output optical device have different grating spacing from said other diffractive optical elements of said output optical device.

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

11. The compact chromatic display system as in claim 6, wherein said transparent substrate plates are at least partially coated with a light-reflective coating.

12. A compact chromatic display system as in claim 1, wherein said Shift Adjusted Display (SAD) device is a Partial Shift Adjusted Display (PSAD) device.

13. The compact chromatic display system as in claim 8, wherein said optical arrangement includes a transparent substrate plate.

14. The compact chromatic display system as in claim 9, wherein said input optical device includes a diffractive optical element carried by said transparent substrate plate.

15. The compact chromatic display system as in claim 9, wherein said output optical device includes a diffractive optical element carried by said transparent substrate plate.

16. The compact chromatic display system as in claim 10, wherein said output optical device includes a diffractive optical element carried by said transparent substrate plate.

17. The compact chromatic display system as in claim 12, further comprising at least one additional diffractive optical element being positioned between said input optical device and said output optical device.

18. The compact chromatic display system as in claim 16, wherein said transparent substrate plate is at least partially coated with a light-reflective coating.

19. Compact chromatic display system comprising two compact chromatic display systems as in claim 1.

20. Compact chromatic display system comprising two compact chromatic display systems as in claim 10.

21. The compact chromatic display system as in claim 19, wherein said transparent substrate plates are at least partially coated with a light-reflective coating.

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

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

(i) a first transparent substrate plate.

(ii) at least second transparent substrate plate.

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

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

(v) a Complete Shift Adjusted display (CSAD) device.

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

(c) causing said compact chromatic planar optic display system to display an output chromatic virtual image.

(d) positioning said compact chromatic planar optic display at an orientation and at a place with respect to said viewer'"'"'s eye to enable said viewer to observe said output chromatic virtual image

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

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

(i) a transparent substrate plate.

(ii) an input diffractive optical element carried by said transparent substrate plate.

(iii) an output diffractive optical element carried by said transparent substrate.

(iv) a Partial Shift Adjusted Display (PSAD) device

(f) connecting said compact chromatic planar optic display system to an active video source.

(g) causing said compact chromatic planar optic display system to display an output chromatic virtual image.

(h) positioning said compact chromatic planar optic display at an orientation and at a place with respect to said viewer'"'"'s eye to enable said viewer to observe said output chromatic virtual image.

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

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

(i) two transparent substrate plates.

(ii) two input diffractive optical elements carried by said transparent substrate plates.

(iii) two output diffractive optical elements carried by said transparent substrate plates.

(iv) two Shift Adjusted Display (PSAD) devices.

(j) connecting said compact chromatic planar optic display system to an active video source.

(k) causing said compact chromatic planar optic display system to display output chromatic virtual images.

(l) positioning said compact chromatic planar optic display at an orientation and at a place with respect to said viewer'"'"'s eyes, so that each eye sees an image displayed by one of said two output diffractive optical elements to enable said viewer to observe said output chromatic virtual image.