Granted Patent B2

US 12,298,501 · App. 17/616,255 · Granted May 13, 2025

Inventors: Alexander Hunt (Tygelsjö, SE); Saeed Bastani (Dalby, SE); Andreas Kristensson (Södra Sandby, SE); Yun Li (Lund, SE)

Assignee: Telefonaktiebolaget LM Ericsson (publ)

G02B27/0093G02B27/0149G02B27/0172G02B2027/0138G02B2027/014G02B2027/0159

Abstract

Claims (38)

1. An optical see-through viewing device comprising a controller configured to control a display arrangement comprising an image capturing device and a reflective device, wherein the controller is further configured to calibrate the optical see-through viewing device by:

a) adapting the reflective device to enable the image capturing device to capture an image of a user's eye;

b) capturing an image of a user's eye;

c) determining a location of the user's eye;

d) determining a displacement for adapting the display arrangement;

e) adapting at least a part of the display arrangement; and

f) returning the reflective device.

2. The optical see-through viewing device of claim 1 , wherein the controller is further configured to a) adapt and f) return the reflective device by rotating it.

3. The optical see-through viewing device of claim 2 , wherein the controller is further configured to rotate the reflective device around a rotation axis that is in line with a center line of the reflective device.

4. The optical see-through viewing device of claim 2 , wherein the controller is further configured to rotate the reflective device 90 degrees.

5. The optical see-through viewing device of claim 1 , wherein the controller is further configured to e) adapting the display arrangement by moving a part of it.

6. The optical see-through viewing device of claim 5 , wherein the controller is further configured to e) adapting the display arrangement by moving the image capturing device.

7. The optical see-through viewing device of claim 1 , wherein the controller is further configured to determinate that there is an eye present before capturing an image of the user's eye.

8. The optical see-through viewing device of claim 1 , wherein the controller is further configured to initiate the calibration when the optical see-through viewing device is activated.

9. The optical see-through viewing device of claim 8 , wherein the controller is further configured to a) adapt the reflective device when the optical see-through viewing device is de-activated.

10. The optical see-through viewing device of claim 1 , wherein the controller is further configured to determine that the optical see-through viewing device is being worn and in response thereto initiate the calibration.

11. The optical see-through viewing device of claim 10 , wherein the controller is further configured to determine that the optical see-through viewing device is no longer being worn and in response thereto adapt the reflective device.

12. The optical see-through viewing device of claim 10 , further comprising an activity sensor, wherein the controller is further configured to determine whether the optical see-through viewing device is being worn based on sensor input received from the activity sensor.

13. The optical see-through viewing device of claim 12 , wherein the activity sensor is a pressure sensor.

14. The optical see-through viewing device of claim 13 , further comprising at least one nose pad, wherein the pressure sensor is arranged in the at least one nose pad.

15. The optical see-through viewing device of claim 12 , wherein the activity sensor comprises at least one of any of: a capacitive sensor, a motion sensor, and a light sensor.

16. The optical see-through viewing device of claim 1 , wherein the controller is further configured to adapt the at least a part of the display arrangement by moving the at least a part of the display arrangement in at least one of two directions.

17. The optical see-through viewing device of claim 1 , wherein the controller is further configured to adapt the at least a part of the display arrangement by moving the at least a part of the display arrangement in at least one of three directions.

18. The optical see-through viewing device of claim 1 , wherein the controller is further configured to adapt the at least a part of the display arrangement by moving the at least a part of the display arrangement in an angular direction.

19. A method for calibrating an optical see-through viewing device comprising a display arrangement comprising an image capturing device and a reflective device, wherein the method comprises calibrating the optical see-through viewing device by:

a) adapting the reflective device to enable the image capturing device to capture an image of a user's eye;

b) capturing an image of a user's eye;

c) determining a location of the user's eye;

d) determining a displacement for adapting the display arrangement;

e) adapting at least a part of the display arrangement; and

f) returning the reflective device.

20. A non-transitory computer-readable medium comprising, stored thereupon, a software component arrangement for calibrating an optical see-through viewing device comprising a controller configured to control a display arrangement comprising an image capturing device and a reflective device, wherein the software component arrangement comprises:

a) a software component for adapting the reflective device to enable the image capturing device to capture an image of a user's eye;

b) a software component for capturing an image of a user's eye;

c) a software component for determining a location of the user's eye;

d) a software component for determining a displacement for adapting the display arrangement;

e) a software component for adapting at least a part of the display arrangement; and

f) a software component for returning the reflective device.

Assignments (1)

Continuity (1)

References Cited (47)