Head mounted display device

• US 9,250,444 B2
• Filed: 11/21/2009
• Issued: 02/02/2016
• Est. Priority Date: 11/21/2009
• Status: Active Grant

• Current Assignee: Optique DEBT Investment LLC
• Original Assignee: Immy Inc.
• Inventors: Magyari, Douglas Peter
• Primary Examiner(s): Lee, Jr., Kenneth B
• Application Number:
  US13/510,423
• Publication Number:
  US 20120229367A1
• Time in Patent Office: 2,264 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• CPC Class Codes: G02B 2027/0127 comprising devices increasing the depth of field
• CPC Class Codes: G02B 2027/0178 Eyeglass type eyeglass details G02C
• CPC Class Codes: G02B 27/0172 characterised by optical features

Abstract

Disclosed is a primarily reflective-based head mounted display device, for displaying and viewing visual content from a visual display source, including a frame, at least one optics housing connected to said frame, wherein the optics housing and frame are configured such that the optics housing may be positioned at least partially in front of an eye of a user, and wherein the optics housing includes a light-emitting visual source disposed within the optics housing for projecting visual content, and a plurality of reflective optical surfaces in optical communication with the light-emitting visual source that are configured to reflect a projection of the visual content into the eye of the user.

Claims

1. A reflective-based, head mounted display device comprising:

a wearable, head mounted frame; and

at least one near-to-eye optics housing connected to said frame and configured to be positioned at least partially in front of an eye of a user, said optics housing comprising;

a light-emitting visual source for projecting visual content;

a plurality of reflective optical surfaces in optical communication with said light-emitting visual source; and

an optical path defined by said plurality of reflective optical surfaces, said optical path extending from said light-emitting visual source to an eyebox of said optical path,

wherein said plurality of reflective optical surfaces are configured to reflect light rays from a projection of said visual content between each one of said reflective optical surfaces in a predefined sequential order along said optical path and into said eyebox, and

wherein said optical path is free of refractive optical lenses between said light emitting visual source and a last of said plurality of reflective optical surfaces to reflect light rays from said projection of said visual content, and

wherein said reflective optical surfaces are configured to cooperatively magnify said projection of said visual content, such that said projected visual content appears magnified when viewed at said eyebox.

2. The head mounted display device of claim 1, further comprising a first near-to-eye optics housing and a second near-to-eye optics housing, both connected to said frame, wherein said first optics housing is configured such that it may be positioned at least partially in front of a first eye of said user to project a first visual content to said first eye, and wherein said second optics housing is configured such that it may be positioned at least partially in front of a second eye of said user to project a second visual content to said second eye.

3. The head mounted display device of claim 1, wherein said frame is an eyeglasses frame.

4. The head mounted display device of claim 1 , wherein said optics housing further comprises a primary transmission housing and a secondary vision housing, wherein said secondary vision housing is configured to be disposed in front of said user'"'"'s eye and is connected to said primary transmission housing.

5. The head mounted display device of claim 4, wherein said secondary vision housing comprises a transparent front dust cover configured to be positioned in front of said user'"'"'s eye and configured to allow said user to see there through.

6. The head mounted display device of claim 5, wherein said secondary vision housing further comprises an outer dust cover configured to be positioned in front of said front dust cover wherein said front dust cover and outer dust cover are configured to cooperatively seal said optics housing from environmental contaminants.

7. The head mounted display device of claim 6, wherein said outer dust cover is transparent and is configured to allow said user to see there through.

8. The head mounted display device of claim 7, further comprising a variably-adjustable transmission-loss layer, wherein said adjustable transmission-loss layer is configured to be in communication with said outer dust cover.

9. The head mounted display device of claim 8, wherein said adjustable transmission-loss layer can selectably be made to be fully transparent to allow said user to see through said transparent outer dust cover and said adjustable transmission-loss layer to a surrounding environment.

10. The head mounted display device of claim 8, wherein said adjustable transmission-loss layer can selectably be made to be completely dark to prevent said user from seeing through said outer dust cover and said adjustable transmission-loss layer.

11. The head mounted display device of claim 8, wherein said adjustable transmission-loss layer can selectably be made to have varying levels of darkness to allow said user to partially see through said outer dust cover and said adjustable transmission-loss layer to a surrounding environment.

12. The head mounted display device of claim 7, wherein an inner surface of said outer dust cover is a reversible mirror.

13. The head mounted display device of claim 1, wherein said plurality of reflective optical surfaces comprises a series of reflective optical surfaces, including at least a first reflective optical surface and a last reflective optical surface, for reflecting said visual content off of each reflective optical surface beginning with said first reflective optical surface, and wherein said last reflective optical surface is an interior surface of said outer dust cover, and from which interior surface said visual content is last reflected to said eyebox.

14. The head mounted display device of claim 13, wherein said visual content is reflected off of each reflective optical surface beginning with said first reflective optical surface and ending with said last reflective optical surface.

15. The head mounted display device of claim 13, wherein said first reflective optical surface is a convex surface and said last reflective optical surface is a concave surface.

16. The head mounted display device of claim 13 further comprising at least one intermediate reflective optical surface.

17. The head mounted display device of claim 16, wherein said first reflective optical surface and said last reflective optical surface are concave surfaces.

18. The head mounted display device of claim 17, wherein said at least one intermediate reflective optical surface comprises a second reflective optical surface that is a convex surface.

19. The head mounted display device of claim 17, wherein said at least one intermediate reflective optical surface comprises a second reflective optical surface that is a convex surface, a third reflective optical surface that is a concave surface, and a fourth reflective optical surface that is a convex surface.

20. The head mounted display device of claim 4, wherein said primary transmission housing is configured to be substantially located below said frame.

21. The head mounted display device of claim 4, wherein said primary transmission housing is configured to be substantially located above said frame.

22. The head mounted display device of claim 1 , wherein said light-emitting visual source is a micro-display.

23. The head mounted display device of claim 1 , further comprising a diopter adjuster in communication with said light-emitting visual source, wherein said diopter adjuster is configured to move said light-emitting visual source forward or backward, relative to a direction of visual content projection from said light-emitting visual source, so as to provide focus correction of said visual content.

24. The head mounted display device of claim 1, wherein said head mounted display device generates at least a 60-degree text-readable diagonal field-of-view at said eyebox.

25. The head mounted display of claim 1 , further comprising a refractive element located in said optical path between said last of said plurality of reflective optical surfaces and said eyebox.

26. A reflective-based, head mounted display device comprising:

a wearable, head mounted frame; and

at least one near-to-eye optics housing connected to said frame and configured to be positioned at least partially in front of an eye of a user, said optics housing comprising;

a light-emitting visual source for projecting visual content

a plurality of reflective optical surfaces in optical communication with said light-emitting visual source; and

an optical path defined by said plurality of plurality of reflective optical surfaces, said optical path extending from said light-emitting visual source to an eyebox of said optical path,

wherein said plurality of reflective optical surfaces are configured to reflect light rays from a projection of said visual content between each one of said reflective optical surfaces in a predefined sequential order along said optical path and into said eyebox, and

wherein said optical path is free of refractive optical lenses between said light emitting visual source and a last of said plurality of reflective optical surfaces to reflect light rays from said projection of said visual content.

27. The head mounted display device of claim 26, wherein said reflective optical surfaces are configured to cooperatively magnify said projection of said visual content, such that said projected visual content appears magnified when viewed at said eyebox.

28. The head mounted display device of claim 26, further comprising a first near-to-eye optics housing and a second near-to-eye optics housing, both connected to said frame, wherein said first optics housing is configured such that it may be positioned at least partially in front of a first eye of said user to project a first visual content to said first eye, and wherein said second optics housing is configured such that it may be positioned at least partially in front of a second eye of said user to project a second visual content to said second eye.

29. The head mounted display device of claim 26, wherein said optics housing further comprises a primary transmission housing and a secondary vision housing, wherein said secondary vision housing is configured to be disposed in front of said user'"'"'s eye and is connected to said primary transmission housing.

30. The head mounted display device of claim 29, wherein said secondary vision housing comprises a transparent front dust cover configured to be positioned in front of said user'"'"'s eye and configured to allow said user to see there through.

31. The head mounted display device of claim 30, wherein said secondary vision housing further comprises an outer dust cover configured to be positioned in front of said front dust cover wherein said front dust cover and outer dust cover are configured to cooperatively seal said optics housing from environmental contaminants.

32. The head mounted display device of claim 31, wherein said outer dust cover is transparent and is configured to allow said user to see there through.

33. The head mounted display device of claim 32, further comprising a variably-adjustable transmission-loss layer, wherein said adjustable transmission-loss layer is configured to be in communication with said outer dust cover.

34. The head mounted display device of claim 33, wherein said adjustable transmission-loss layer can selectably be made to be fully transparent to allow said user to see through said transparent outer dust cover and said adjustable transmission-loss layer to a surrounding environment.

35. The head mounted display device of claim 33, wherein said adjustable transmission-loss layer can selectably be made to be completely dark to prevent said user from seeing through said outer dust cover and said adjustable transmission-loss layer.

36. The head mounted display device of claim 33, wherein said adjustable transmission-loss layer can selectably be made to have varying levels of darkness to allow said user to partially see through said outer dust cover and said adjustable transmission-loss layer to a surrounding environment.

37. The head mounted display device of claim 32, wherein an inner surface of said outer dust cover is a reversible minor.

38. The head mounted display device of claim 26, wherein said plurality of reflective optical surfaces comprises a series of reflective optical surfaces, including at least a first reflective optical surface and a last reflective optical surface, for reflecting said visual content off of each reflective optical surface beginning with said first reflective optical surface, and wherein said last reflective optical surface is an interior surface of said outer dust cover, and from which interior surface said visual content is reflected to said eyebox.

39. The head mounted display device of claim 38, wherein said visual content is reflected off of each reflective optical surface beginning with said first reflective optical surface and ending with said last reflective optical surface.

40. The head mounted display device of claim 38, wherein said first reflective optical surface is a convex surface and said last reflective optical surface is a concave surface.

41. The head mounted display device of claim 38 further comprising at least one intermediate reflective optical surface.

42. The head mounted display device of claim 41, wherein said first reflective optical surface and said last reflective optical surface are concave surfaces.

43. The head mounted display device of claim 42, wherein said at least one intermediate reflective optical surface comprises a second reflective optical surface that is a convex surface.

44. The head mounted display device of claim 42, wherein said at least one intermediate reflective optical surface comprises a second reflective optical surface that is a convex surface, a third reflective optical surface that is a concave surface, and a fourth reflective optical surface that is a convex surface.

45. The head mounted display device of claim 29, wherein said primary transmission housing is configured to be substantially located below said frame.

46. The head mounted display device of claim 29, wherein said primary transmission housing is configured to be substantially located above said frame.

47. The head mounted display device of claim 26, wherein said light-emitting visual source is a micro-display.

48. The head mounted display device of claim 26, further comprising a diopter adjuster in communication with said light-emitting visual source, wherein said diopter adjuster is configured to move said light-emitting visual source forward or backward, relative to a direction of visual content projection from said light-emitting visual source, so as to provide focus correction of said visual content.

49. The head mounted display device of claim 26, wherein said head mounted display device generates at least a 60-degree text-readable diagonal field-of-view at said eyebox.

50. The head mounted display device of claim 26 further comprising a refractive element located in said optical path between last of said reflective optical surfaces and said eyebox.

51. A reflective, head mounted display device comprising:

a frame; and

at least one optics housing connected to said frame and configured to be positioned at least partially in front of an eye of a user, said optics housing comprising;

a light-emitting visual source disposed within said optics housing for projecting visual content;

a plurality of reflective optical surfaces in optical communication with said light-emitting visual source; and

an optical path defined by said plurality of plurality of reflective optical surfaces, said optical path extending from said light-emitting visual source to an eyebox of said optical path,

wherein said plurality of reflective optical surfaces are configured to reflect a projection of said visual content between each one of said reflective optical surfaces in a predefined sequential order along said optical path and into said eyebox,

wherein said optical path is free of refractive optical lenses between said light emitting visual source and a last of said plurality of reflective optical surfaces to reflect light rays from said projection of said visual content.

52. The head mounted display device of claim 51, wherein said frame is a wearable, head mounted frame.

53. The head mounted display device of claim 51 , wherein said reflective optical surfaces are configured to cooperatively magnify said projection of said visual content, such that said projected visual content appears magnified when viewed at said eyebox.

54. A method of projecting magnified visual content to an eyebox of a head mounted display device, comprising:

providing a wearable head mounted display, configured to be placed onto a user'"'"'s head and in front of at least one of said user'"'"'s eyes, said head mounted display comprising a frame and at least one near-to-eye optics housing connected to said frame, said optics housing comprising at least one light-emitting visual source disposed within said optics housing for projecting visual content, and a plurality of reflective optical surfaces disposed within said optics housing defining an optical path along which said projected visual content is reflective from said light-emitting visual source to said eyebox, wherein said reflective optical surfaces are configured to successively reflect a magnified projection of said content to said eyebox, and wherein said optical path is free of refractive optical lenses between said light emitting visual source and a last of said plurality of reflective optical surfaces to reflect light rays from said projection of said visual content;

providing an input signal to said light-emitting visual source to produce visual content to be projected;

reflecting said projected content off of said reflective optical surfaces such that said last reflective optical surface reflects said content to said eyebox, wherein said content will appear magnified.

55. The method of claim 54, wherein said input signal is an output signal from a computer.

56. The method of claim 54, wherein said input signal is a video signal.

57. The method of claim 54, wherein said input signal is an image signal.

58. The method of claim 54, wherein said input signal contains static visual content.

59. The method of claim 54, wherein said input signal contains dynamic visual content.