Near-eye-display (NED) that employs rapid spherical image scanning

• US 10,310,273 B2
• Filed: 09/19/2017
• Issued: 06/04/2019
• Est. Priority Date: 09/19/2016
• Status: Active Grant

• Current Assignee: George Mataban Calm
• Original Assignee: George Mataban Calm
• Inventors: Calm, George Mataban
• Primary Examiner(s): Pan, Jia X
• Application Number:
  US15/708,135
• Publication Number:
  US 20180284459A1
• Time in Patent Office: 623 Days
• CPC Class Codes: G02B 2027/0123 comprising devices increasing the field of view
• CPC Class Codes: G02B 2027/013 comprising a combiner of particular shape, e.g. curvature
• CPC Class Codes: G02B 27/0081 with means for altering, e.g. enlarging, the entrance or exit pupil
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 27/0189 Sight systems
• CPC Class Codes: G02B 27/283 used for beam splitting or combining
• CPC Class Codes: G02B 5/30 Polarising elements light-modulating devices with active elements G02F1/00
• CPC Class Codes: G02B 6/0008 the light being emitted at the end of the fibre
• CPC Class Codes: G02B 6/08 with fibre bundle in form of plate

Abstract

A NED-RapSIS with concentric imaging and optical elements comprising a display with spherically curved concave image surface topped with polarizer; a spherically curved concave composite reflector having polar arrayed alternating mirror-quarterwavelength retarder strips, and clear optical slits; a spherically curved transparent counter-balance; a motor-driven driving crank near the edges that drives the reflector and counter-balance to circular-spherical movement; a slave crank near the opposite edge of composite reflector with its shaft and crank arms aligned to the concentric center another slave crank near the opposite edge of the counter-balance with its shaft and crank arms aligned with the shaft and crank arms respectively of the latter crank and aligned with the concentric center; a see-thru spherically curved mirror-polarizer composite with mirror at the convex side and polarizer at the concave side, and a support frame.

Claims

1. A near eye display (NED) device with concentric imaging and optical elements comprising:

a display with a spherically curved concave image surface, wherein a first polarizer is disposed on the display;

a spherically and circularly rotating tandem comprised of;

a spherically curved concave composite reflector, and

a spherically curved transparent counter-balance;

a motor-driven driving crank operable to rotate the spherically curved concave composite reflector and the spherically curved transparent counter-balance;

a see-thru spherically curved mirror-polarizer composite comprised of

a mirror at the convex side of the see-thru spherically curved mirror-polarizer composite, and

a second polarizer at the concave side of the see-thru spherically curved mirror-polarizer composite; and

a frame operable to mount the device to a user'"'"'s head.

2. The device of claim 1 further comprising:

one or more guides to constrain both

the spherically curved composite reflector and

the spherically curved transparent counter-balance to spherical movements.

3. The device of claim 1

wherein the display is spherically curved, transparent and concave,

wherein an LCD occluder is disposed on the convex side of the display,

further including:

a controller circuit.

4. The device of claim 3 further comprising:

an occluding optical system.

5. The device of claim 1

wherein the display is cylindrically curved,

wherein a fiber-optic faceplate is disposed on a concave side of the display,

wherein the first polarizer is disposed on a concave surface of the fiber-optic faceplate.

6. The device of claim 5

wherein the display is transparent and cylindrically curved,

wherein an LCD occluder is disposed on a convex side of the display,

wherein a second fiber-optic faceplate is disposed on a convex side of the LCD occluder,

further comprising:

an occluding optical system,

wherein the occluding optical system is disposed on the convex side of the first polarizer.

7. An imaging device comprising:

a curved display with a convex surface and a concave surface, the curved display operable to display an image on the concave surface;

a polarizer coupled to the concave surface;

a movable frame coupled to a motor-driven driving crank;

a curved composite reflector disposed on the movable frame, the curved composite reflector including an array of alternating mirror-quarter-wavelength retarder strips and clear optical slits; and

a control circuit operable to control one or both of the image on the curved display or the motor-driven driving crank.

8. The device of claim 7 further comprising:

a motor-driven counter-balance including a curved transparent counter-balance,

wherein the motor-driven counter-balance is optically aligned to the curved composite reflector.

9. The device of claim 8 wherein the curved transparent counter-balance and the curved composite reflector are driven substantially in synchronization.

10. The device of claim 8 further including a substantially transparent mirror coupled to the polarizer.

11. The device of claim 7 further including:

an optical occluder disposed in optical alignment with the curved display,

wherein the optical occluder is coupled to a second control circuit operable to control light through the optical occluder.