SEE-THROUGH COMPUTER DISPLAY SYSTEMS

• US 20160286177A1
• Filed: 03/27/2015
• Published: 09/29/2016
• Est. Priority Date: 03/27/2015
• Status: Abandoned Application

• Current Assignee: Osterhout Design Group
• Original Assignee: Osterhout Design Group
• Inventors: Border, John N., Bietry, Joseph, Haddick, John D.
• Application Number:
  US14/671,906
• Publication Number:
  US 20160286177A1
• Time in Patent Office: Days
• 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 2027/0134 of stereoscopic type
• CPC Class Codes: G02B 2027/0138 comprising image capture systems, e.g. camera
• CPC Class Codes: G02B 2027/014 comprising information/image processing systems
• CPC Class Codes: G02B 2027/0154 with movable elements
• CPC Class Codes: G02B 2027/0156 with optionally usable elements
• CPC Class Codes: G02B 2027/0178 Eyeglass type eyeglass details G02C
• CPC Class Codes: G02B 2027/0185 Displaying image at variable distance
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 27/0176 characterised by mechanical features
• CPC Class Codes: G02B 7/08 adapted to co-operate with a remote control mechanism
• CPC Class Codes: G02C 2202/20 Diffractive and Fresnel lenses or lens portions
• CPC Class Codes: G02C 7/022 Ophthalmic lenses having special refractive features achieved by special materials or material structures G02C7/049 takes precedence
• CPC Class Codes: G06F 3/013 Eye tracking input arrangements G06F3/015 takes precedence
• CPC Class Codes: H04N 13/128 Adjusting depth or disparity
• CPC Class Codes: H04N 13/344 with head-mounted left-right displays
• CPC Class Codes: H04N 13/361 Reproducing mixed stereoscopic images; Reproducing mixed monoscopic and stereoscopic images, e.g. a stereoscopic image overlay window on a monoscopic image background
• CPC Class Codes: H04N 13/371 for tracking viewers with different interocular distances; for tracking rotational head movements around the vertical axis
• CPC Class Codes: H04N 13/383 for tracking with gaze detection, i.e. detecting the lines of sight of the viewer's eyes
• CPC Class Codes: H04N 13/398 : Synchronisation thereof; Control thereof
• CPC Class Codes: H04N 2213/008 : Aspects relating to glasses for viewing stereoscopic images
• CPC Class Codes: H04N 9/3152 : for shaping the light beam beam shaping per se G02B27/09
• CPC Class Codes: H04N 9/317 : Convergence or focusing systems electronic adjustment of convergence H04N9/3185; convergence or focusing arrangements for cathode ray tubes H04N9/28; means for automatic focusing of projectors not peculiar to the presence of an electronic spatial light modulator G03B21/53
• CPC Class Codes: H04N 9/3176 : wherein the projection device is incorporated in a camera details of cameras adapted for combination with a projector not peculiar to the presence of an electronic spatial light modulator G03B17/54
• CPC Class Codes: H04N 9/3185 : Geometric adjustment, e.g. keystone or convergence optical or mechanical adjustment of convergence H04N9/317; using scanning means H04N3/22; optical or mechanical adjustments of projectors not peculiar to the presence of an electronic spatial light modulator G03B21/14

Abstract

Aspects of the present invention relate to methods and systems for the see-through computer display systems with focus and/or vergence adjustment systems.

Claims

1. A head-worn display system for viewing augmented reality imagery including displayed images of objects overlaid onto a see-through view of a surrounding environment, comprising:

a. an integrated processor providing images;

b. a focus adjustment module including an image source, an actuator and a guidance mechanism;

c. multiply folded display optics including one or more lenses;

d. an illumination source;

e. a combiner that reflects a portion of light from the image source and transmits a portion of light from a surrounding environment.

2. The head-worn display of claim 1 wherein the multiply folded display optics include a fold mirror between the focus adjustment module and the combiner.

3. The head-worn display of claim 2 wherein the fold mirror folds the display optics to the side of the combiner to reduce the height of the display optics.

4. The head-worn display of claim 1 wherein the multiply folded display optics include a prism.

5. The head-worn display of claim 1 wherein the display optics are telecentric at the image source.

6. The head-worn display of claim 5 wherein the illumination source provides telecentric illumination of the image source.

7. The head-worn display of claim 1 further comprising a camera to capture images of the user'"'"'s eye.

8. The head-worn display of claim 7 wherein the captured image of the user'"'"'s eye is reflected from the combiner before being captured by the camera.

9. The head-worn display of claim 7 further comprising an LED to illuminate the user'"'"'s eye.

10. The head-worn display of claim 9 wherein the LED provides infrared light that the camera is sensitive to.

11. The head-worn display of claim 1 further comprising an inertial measurement unit.

12. The head-worn display of claim 1 wherein the actuator is a solenoid coupled to a pair of wedges.

13. The head-worn display of claim 1 wherein the actuator is a pair of bimorph piezoelectric actuators.

14. The head-worn display of claim 1 wherein the actuator is a scissors jack actuator.

15. The head-worn display of claim 1 wherein the actuator is a voice coil motor.

16. The head-worn display of claim 1 wherein the guidance mechanism is a leaf spring.

17. The head-worn display of claim 1 wherein the guidance mechanism is a four bar linkage.

18. The head-worn display of claim 3 wherein the focus adjustment module is located to the side of the combiner, the image source is oriented approximately vertically and closer to the multiply folded display optics than the actuator and guidance mechanism.

19. The head-worn display of claim 7 wherein the eye camera includes an autofocus.

20. The head-worn display of claim 19 wherein a focus setting associated with the autofocus is used to make automatic adjustments.