EYE IMAGING IN HEAD WORN COMPUTING

• US 20150205348A1
• Filed: 10/28/2014
• Published: 07/23/2015
• Est. Priority Date: 01/21/2014
• Status: Active Grant

• Current Assignee: Mentor Acquisition One, LLC (Magic Leap, Inc.)
• Original Assignee: Osterhout Design Group
• Inventors: Nortrup, Edward H., Border, John N., Osterhout, Ralph F., Haddick, John D., Lohse, Robert Michael
• Granted Patent: US 9,740,280 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 2027/0178 Eyeglass type eyeglass details G02C
• CPC Class Codes: G02B 2027/0187 slaved to motion of at least a part of the body of the user, e.g. head, eye
• CPC Class Codes: G02B 26/0816 by means of one or more reflecting elements
• CPC Class Codes: G02B 27/0093 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 27/1033 having a single light modulator for all colour channels
• CPC Class Codes: G06F 1/163 Wearable computers, e.g. on a belt
• CPC Class Codes: G06F 1/1686 the I/O peripheral being an integrated camera
• CPC Class Codes: G06F 3/011 Arrangements for interaction with the human body, e.g. for user immersion in virtual reality blind teaching G09B21/00
• CPC Class Codes: G06F 3/013 Eye tracking input arrangements G06F3/015 takes precedence
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06Q 30/0242 Determining effectiveness of advertisements
• CPC Class Codes: G06V 40/19 Sensors therefor
• CPC Class Codes: G08B 21/02 Alarms for ensuring the safety of persons

Abstract

Aspects of the present invention relate to methods and systems for imaging, recognizing, and tracking of a user'"'"'s eye that is wearing a HWC. Aspects further relate to the processing of images reflected from the user'"'"'s eye and controlling displayed content in accordance therewith.

Claims

1. A head-worn computer, comprising:

a. A camera adapted to capture a plurality of reflected images of a eye of a person wearing the head-worn computer to determine a plurality of positions of the eye, wherein the camera is positioned to capture the reflected images of the eye from an optical path that is in-line with an image-light path through delivery optics that are adapted to present an image to the eye; and

b. A processor adapted to determine a rate of position change statistic describing a rate of positional change of the eye based on the plurality of reflected images, the processor further adapted to remove content from a field of view of a see-through display if the rate of positional change exceeds a predetermined threshold.

2. The head-worn computer of claim 1, wherein the first camera is located proximate an image display system, wherein the image display projects image light along the optical path in-line with the delivery optics adapted to present an image to the first eye.

3. The head-worn computer of claim 2, wherein the image display is a reflective display and the reflected image of the eye of the person reflects off of the image display prior to being captured by the camera.

4. The head-worn computer of claim 2, further comprising a reflective surface positioned between the image display and the camera, wherein the camera captures the reflected image of the eye of the person after it reflects off of the reflective surface.

5. The head-worn computer of claim 4, wherein the image display is a front lit reflective image display.

6. The head-worn computer of claim 4, wherein the image display is an emissive display.

7. The head-worn computer of claim 1, wherein the processor presents content in both the first and second displays such that the person perceives a 3D image.