SEE-THROUGH NEAR-EYE DISPLAY GLASSES WITH THE OPTICAL ASSEMBLY INCLUDING ABSORPTIVE POLARIZERS OR ANTI-REFLECTIVE COATINGS TO REDUCE STRAY LIGHT

• US 20120242697A1
• Filed: 03/26/2012
• Published: 09/27/2012
• Est. Priority Date: 02/28/2010
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Osterhout Design Group
• Inventors: Border, John N., Haddick, John D., Lohse, Robert Michael, Osterhout, Ralph F.
• Granted Patent: US 9,182,596 B2
• Time in Patent Office: Days
• US Class Current: 345/633
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• 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 27/0093 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
• CPC Class Codes: G02B 27/017 Head mounted
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 5/30 Polarising elements light-modulating devices with active elements G02F1/00
• CPC Class Codes: G06F 1/163 Wearable computers, e.g. on a belt
• CPC Class Codes: G06F 3/005 Input arrangements through a video 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 30/02 Marketing; Price estimation or determination; Fundraising

Abstract

This disclosure concerns an interactive head-mounted eyepiece with an integrated processor for handling content for display and an integrated image source for introducing the content to an optical assembly through which the user views a surrounding environment and the displayed content. The optical assembly includes absorptive polarizers or anti-reflective coatings to reduce stray light.

Claims

1. A system, comprising:

an interactive head-mounted eyepiece worn by a user, wherein the eyepiece includes an optical assembly through which the user views a surrounding environment combined with displayed content, an integrated processor for handling content for display to the user, and an integrated image source for introducing the content to the optical assembly; and

an absorptive polarizer in the optical assembly to reduce stray light.

2. The system of claim 1, wherein the absorptive polarizer comprises an anti-reflective coating.

3. The system of claim 1, wherein the absorptive polarizer is disposed after a focusing lens of the optical assembly to reduce light passing through an optically flat film of the optical assembly.

4. The system of claim 1, wherein the light from the image source is polarized to increase contrast.

5. A system, comprising:

an interactive head-mounted eyepiece worn by a user, wherein the eyepiece includes an optical assembly through which the user views a surrounding environment combined with displayed content, an integrated processor for handling content for display to the user, and an integrated image source for introducing the content to the optical assembly; and

an anti-reflective coating in the optical assembly to reduce stray light.

6. The system of claim 5, wherein the anti-reflective coating is disposed on a polarizer of the optical assembly.

7. The system of claim 5, wherein the anti-reflective coating is disposed on a retarding film of the optical assembly.

8. The system of claim 7, wherein the retarding film is a quarter wave film.

9. The system of claim 7, wherein the retarding film is a half wave film.

10. The system of claim 5, wherein the anti-reflective coating is disposed on an outer surface of a partially reflecting mirror.

11. The system of claim 5, wherein the light from the image source is polarized to increase contrast.