Virtual mosaic wide field of view display system

• US 7,414,595 B1
• Filed: 12/07/2003
• Issued: 08/19/2008
• Est. Priority Date: 12/07/2003
• Status: Expired due to Fees

• Current Assignee: Advanced Simulation Displays Co.
• Original Assignee: Advanced Simulation Displays Co.
• Inventors: Muffler, Ronald J.
• Primary Examiner(s): OSORIO, RICARDO
• Application Number:
  US10/730,422
• Time in Patent Office: 1,717 Days
• Field of Search: 345/7, 345/8, 345/32, 345/1.1, 345/1.3, 345629-635
• US Class Current: 345/7
• CPC Class Codes: G02B 27/1066 for enhancing image performance, like resolution, pixel numbers, dual magnifications or dynamic range, by tiling, slicing or overlapping fields of view
• CPC Class Codes: G02B 27/1073 characterized by manufacturing or alignment methods
• CPC Class Codes: G02B 27/143 using macroscopically faceted or segmented reflective surfaces
• CPC Class Codes: G02B 27/144 using partially transparent surfaces without spectral selectivity G02B27/147 takes precedence
• CPC Class Codes: G09B 9/30 Simulation of view from aircraft

Abstract

A display system, which is useful for simulation, and training system that provides a mosaic wide field of view display by alternating virtual and direct view display images through the use of a new optical beamsplitter/combiner device. Edge blending and the use of flat panel display devices are used to provide a high brightness, high contrast, high reliability, and continuous unobstructed field of view. The new optical beamsplitter/combiner has an optically flat reflective portion and a curved transmissive portion.

Claims

1. A display system for presentation of a multi-display visually continuous simulation to a person located at an eye-position, comprising:

(A) a direct view display device in a position defining an optical axis whereby a real image can be seen at about the eye-position;

(B) a beamsplitter/coupler comprising a transmissive region intersecting said optical axis and transmitting the real image of said direct view display device to said eye-position, wherein said beamsplitter/coupler further comprises a reflective region;

(C) a virtual display device producing a virtual image, wherein said virtual display device is positioned to reflect on said reflective region of said beamsplitter/coupler to produce a reflected image from said virtual image to said eye-position;

(D) an edge matching device blending said real image to said reflected image in a smooth and continuous scene as seen at said eye-position; and

wherein said beamsplitter/coupler and said edge matching device are configured to present an abutted or an overlapped view of said real image and said virtual image to said eye-position.

2. A display system, as recited in claim 1, wherein said virtual display device is an electronic flat screen display device.

3. A display system, as recited in claim 1, wherein said virtual display device is a plasma flat screen display device.

4. A display system, as recited in claim 3, wherein said edge matching device provides a butt match of said real image to said reflected image as seen by a person at said eye-position.

5. A display system, as recited in claim 4, wherein said butt matching of said real and said reflected images are provided for by pixel precision of said displays.

6. A display system, as recited in claim 1, wherein said edge matching device is an edge blending device blending the edges of said real image and said reflected image together.

7. A display system, as recited in claim 1, wherein said virtual display device is selected from the group consisting of CRT monitors, rear projection screens, LCD light valves, plasma screens, CRT projectors, laser projectors and organic light emitting diodes.

8. A display system, as recited in claim 1, wherein said direct view display device is an electronic flat screen display device.

9. A display system, as recited in claim 1, wherein said direct view display device is a plasma flat screen display device.

10. A display system, as recited in claim 1, wherein said direct view display device is selected from the group consisting of CRT monitors, rear projection screens, LCD light valves, CRT projectors, laser projectors and organic light emitting diodes.

11. A display system, as recited in claim 1, wherein said beamsplitter/combiner further comprises an optical device which further comprises a curved transmissive and reflective device which comprises a material selected from the group consisting of glass, acrylic and polycarbonate.

12. A display system, as recited in claim 1, wherein said beamsplitter/combiner further comprises a beamsplitter coating designed to provide about 50% transmission and 50% reflection characteristics across the visual spectrum.

13. A display system, as recited in claim 1, further comprising a frame holding said direct view display device, said virtual display device and said beamsplitter/combiner about a user/trainee position.

14. A display system, as recited in claim 13, wherein said frame further comprises a honeycomb structure backing plate and a plurality of spacers between said honeycomb structure backing plate and said beamsplitter/combiner device.

15. A display system, as recited in claim 1, wherein said edge blending device further comprises a linearly light blocking silk screened vinyl mask fixed to an edge of said direct view display device.

16. A display system, as recited in claim 1, wherein said edge blending device further comprises a linearly light blocking silk screened vinyl mask fixed to an edge of said virtual display device.

17. A display system, as recited in claim 1, further comprises a light baffle preventing unwanted light from cross illuminating the two display channels formed by the combination of said displays and said beamsplitter/coupler.

19. A display system, as recited in claim 1, further comprising a second virtual display device.

20. A display system, as recited in claim 1, further comprising a second direct view display device.

21. A display system, as recited in claim 1, wherein said real image and said reflected image overlap each other.

22. A display system, as recited in claim 1, wherein said real image and said reflected image are butt matched to each other.

23. A display system, as recited in claim 1, further comprising a mosaic display alternating images from said virtual image display device and said direct view display device.

24. A display system, as recited in claim 1, wherein said virtual display device and said direct view display device are orientated so as to provide independent geometric correct images to more than one individual in a cockpit.

18. A display system, as recited in 17, wherein said baffle cooperates with said display devices to provide high contrast levels.