Active visor system for eliminating glare in field-of-vision from mobile and transient light sources and reflective surfaces

• US 20060140502A1
• Filed: 12/25/2004
• Published: 06/29/2006
• Est. Priority Date: 12/25/2004
• Status: Abandoned Application

• Current Assignee: Allan Tseng, Prateek Aggarwal
• Original Assignee: Allan Tseng, Prateek Aggarwal
• Inventors: Tseng, Allan S., Aggarwal, Prateek S.
• Application Number:
  US10/905,296
• Publication Number:
  US 20060140502A1
• Time in Patent Office: Days
• US Class Current: 382/275
• CPC Class Codes: B60J 3/04 adjustable in transparency
• CPC Class Codes: B60R 2300/105 using multiple cameras
• CPC Class Codes: B60R 2300/406 using wireless transmission
• CPC Class Codes: B60R 2300/8053 for bad weather conditions or night vision

Abstract

A field-of-vision processing and filtering system for eliminating glare from mobile and transient light sources and reflective surfaces, using image recording, eye-position detection, and a active matrix screen functioning as a dynamically controllable visor, for modifying the field of vision appropriately. The system filters out high light intensity points from the field of vision, without seriously affecting the relevant parts of the field of vision. One embodiment of the system can be used by drivers for filtering glare from oncoming headlight at night, as well as during day time to block glare from the sun. Another embodiment of the system can be used for protection from glare of welding iron in a machine shop.

Claims

1. A glare elimination system that has a means of generating a control signal for controlling an Active matrix light filter panel.

3. A glare elimination device as in claim 1 with an adaptive glare position tracker using multivariate nonlinear adaptive algorithms for calculating location of pixel on visor as in claim 2 corresponding to glare, given glare source and eye position.

4. In one embodiment, a glare elimination device as in claim 1 with input from a camera embedded in the active visor as in claim 2 for capturing the image viewed by the observer.

6. The first embodiment of glare elimination device as defined in claim 4, with an optional input from a tilt sensor to determine the head orientation relative to visor.

8. A glare elimination device as defined in claim 4 with input from light-emitting diodes placed on the visor for detecting the position of the visor from the camera on the eyepiece.

9. A glare elimination device as in claim 4 with a shuttering of glare-free and original fields of vision.

10. A glare elimination device as in claim 4 with a recharging cradle for charging the active components in the system such as the stand-alone wireless camera as in claim 7.

2. An active visor functioning as light filter panel with functionality for selectively lowering the light intensity at specific pixels in the image.

5. The second embodiment of a glare elimination device as defined in claim 4, which has input from an eye position sensor device embedded in the active visor as in claim 2 for calculating the orientation of the observer'"'"'s eyes relative to the visor.

7. A second embodiment of the g/are elimination device as defined in claim 2 that has input from cameras embedded in the active visor for capturing the image viewed by the observer.