EYE IMAGING IN HEAD WORN COMPUTING

• US 20150241964A1
• Filed: 10/28/2014
• Published: 08/27/2015
• Est. Priority Date: 02/11/2014
• Status: Abandoned Application

• 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
• Application Number:
  US14/525,697
• Publication Number:
  US 20150241964A1
• 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 2027/0178 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 27/0172 characterised by optical features
• 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 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06F 21/606 by securing the transmission between two devices or processes
• CPC Class Codes: G06F 3/005 Input arrangements through a video camera
• CPC Class Codes: G06F 3/012 Head tracking input arrangements
• 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

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 comptaer, comprising:

a. A first camera adapted to capture a reflected image of a first eye of a person wearing the head-worn computer to determine a position of the first eye, wherein the first camera is positioned to capture the reflected image of the first 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 first eye;

b. A second camera adapted to capture a reflected image of a second eye of the person wearing the head-worn computer to determine a position of the second eye;

c. A processor adapted to determine a vergence statistic describing a position of the first and second eyes with respect to one another, wherein the vergence statistic is used to estimate a focal plane at which the user is focused; and

d. The processor further adapted to present content in at least one of the first and second display based on the estimated focal plane.

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.