Head mounted display system
First Claim
1. A head mounted display system comprising:
- a support to mount the display system on a user'"'"'s head;
a display mounted on the support for displaying an image;
an optical element having at least three surfaces including an entrance surface for receiving the image from said display, an exit surface wherein the user views the image directly through the exit surface and a reflective surface for reflecting said image from said entrance surface to said exit surface, the three surfaces of said optical element being shaped to generate a virtual image of said displayed image that is magnified and that appears to be at a location a distance from the user that is substantially greater than the path defined by the display, reflecting surface and user'"'"'s eye; and
a mounting member for mounting said optical element on said support spaced at a distance from said display, said mounting member adjustably mounting said optical element on said support to allow said optical element to be moved along a generally linear axis to vary the distance between said entrance surface and said display.
11 Assignments
0 Petitions
Accused Products
Abstract
A head mounted display system is shown having a single optical element. The single optical element has three optical surfaces. An entrance surface receives a video image directly from a display. A reflective surface reflects the video image from the entrance surface to an exit surface wherein the user views the video image directly through the exit surface. The three optical surfaces are shaped to generate a virtual image that is magnified, appears at a distance from the user and substantially free from distortion, astigmatism and chromatic aberrations. The optical element is adjustably mounted on a frame of the head up display system to accommodate users with different interpupillary distances and to vary the apparent distance between the user and virtual image.
-
Citations
66 Claims
-
1. A head mounted display system comprising:
-
a support to mount the display system on a user'"'"'s head; a display mounted on the support for displaying an image; an optical element having at least three surfaces including an entrance surface for receiving the image from said display, an exit surface wherein the user views the image directly through the exit surface and a reflective surface for reflecting said image from said entrance surface to said exit surface, the three surfaces of said optical element being shaped to generate a virtual image of said displayed image that is magnified and that appears to be at a location a distance from the user that is substantially greater than the path defined by the display, reflecting surface and user'"'"'s eye; and a mounting member for mounting said optical element on said support spaced at a distance from said display, said mounting member adjustably mounting said optical element on said support to allow said optical element to be moved along a generally linear axis to vary the distance between said entrance surface and said display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A head mounted display system comprising:
-
a support to mount the display system on a user'"'"'s head; a display mounted on the support for displaying an image; a solid block optical element having at least three surfaces including a cylindrical entrance surface for receiving the image from the display, a spherical exit surface wherein the user views the image directly through the exit surface and a spherical reflective surface for reflecting said image from said entrance surface to said exit surface, the three surfaces of said optical element being shaped to generate a virtual image of said displayed image that is magnified and that appears to be at a location a distance from the user that is substantially greater than the path defined by the display, reflecting surface and user'"'"'s eye. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
-
-
28. A head mounted display system comprising:
-
a support to mount the display system on a user'"'"'s head; a display mounted on the support for displaying an image and a solid block optical element having at least three surfaces including a spherical entrance surface for receiving the image from the display, a spherical exit surface wherein the user views the image directly through the exit surface and a single reflective surface, said reflective surface being flat for reflecting said image from said entrance surface to said exit surface, the three surfaces of said optical element being shaped to generate a virtual image of said displayed image that is magnified and that appears to be at a location a distance from the user that is substantially greater than the path defined by the display, reflecting surface and user'"'"'s eye. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
-
-
39. A head mounted display system comprising:
-
a support to mount the display system on a user'"'"'s head; a display mounted on the support for displaying an image; a hollow optical element having at least three surfaces including a spherical entrance surface for receiving the image from the display, a spherical exit surface wherein the user views the image directly through the exit surface and a single reflective surface, said reflecting surface being flat for reflecting said image from said entrance surface to said exit surface, the three surfaces of said optical element being shaped to generate a virtual image of said displayed image that is magnified and that appears to be at a location a distance from the user that is substantially greater than the path defined by the display, reflecting surface and user'"'"'s eye. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46)
-
-
47. A head mounted display system comprising:
-
a support to mount the display system on a user'"'"'s head; a display mounted on the support for displaying an image; and a hollow optical element having at least three surfaces including an entrance surface for receiving the image from the display, a spherical exit surface wherein the user views the image directly through the exit surface and a flat reflective surface for reflecting said image from said entrance surface to said exit surface, the three surfaces of said optical element being shaped to generate a virtual image of said displayed image that is magnified and that appears to be at a location a distance from the user that is substantially greater than the path defined by the display, reflecting surface and user'"'"'s eye with perceptible distortion less than 1%. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55)
-
-
56. A head mounted display system comprising:
-
a support to mount the display system on a user'"'"'s head; a video display mounted on the support for displaying a video image; and an optical element having at least three surfaces including an entrance surface for receiving the video image from said display, an exit surface wherein the user views the video image directly through the exit surface and a reflective surface for reflecting said video image from said entrance surface to said exit surface; and means for adjustably mounting said optical element on said support spaced from said display and to allow said optical element to be moved along a generally linear axis to vary the distance between said display and entrance surface.
-
-
57. A head mounted display system comprising:
-
a support to mount the display system on a user'"'"'s head; a video display mounted on the support for displaying a video image; and an optical element having at least three surfaces including a spherical entrance surface for receiving the video image from said display, spherical exit surface wherein the user views the video image directly through the spherical exit surface and a reflective surface for reflecting said video image from said spherical entrance surface to said spherical exit surface; and means for adjustably mounting said optical element on said support spaced from said display and to allow said optical element to be moved generally horizontally to accommodate users having different interpupillary distances.
-
-
58. A head mounted display system comprising:
-
a support to mount the display system on a user'"'"'s head; a video display mounted on the support for displaying a video image; a solid optical element having at least three surfaces including an entrance surface for receiving a video image from the display, an exit surface wherein the user views the video image directly through the exit surface and a reflective surface for reflecting said video image from said entrance surface to said exit surface, said optical element being formed of at least a first material and a second material with at least one of said surfaces formed on said first material and another of said surfaces being formed on said second material, wherein said first and second materials form an achromat. - View Dependent Claims (59, 60, 61, 62)
-
-
63. A head mounted display system comprising:
-
a support to mount the display system on a user'"'"'s head; a display mounted on the support for displaying an image; and an optical element having at least three surfaces including an entrance surface for receiving the image from said display, an exit surface wherein the user views the image directly through the exit surface and a reflective surface for reflecting said image from said entrance surface to said exit surface, the three surfaces of said optical element being shaped to generate a virtual image of said displayed image that is magnified and that appears to be at a location a distance from the user that is substantially greater than the path defined by the display, reflecting surface and user'"'"'s eye, wherein the image on the retina of an emmetropic eye has a normalized longitudinal axial chromatic aberration that is less than 58 microns. - View Dependent Claims (64)
-
-
65. A head mounted display system comprising:
-
a support to mount the display system on a user'"'"'s head; a display mounted on the support for displaying an image; and an optical element having at least three surfaces including an entrance surface for receiving the image from said display, an exit surface wherein the user views the image directly through the exit surface and a reflective surface for reflecting said image from said entrance surface to said exit surface, the three surfaces of said optical element being shaped to generate a virtual image of said displayed image that is magnified and that appears to be at a location a distance from the user that is substantially greater than the path defined by the display, reflecting surface and user'"'"'s eye, wherein the image on the retina of an emmetropic eye has a transverse axial chromatic aberration that is less than 28 microns. - View Dependent Claims (66)
-
Specification