| Patent Number |
Title Of Patent |
Date Issued |
| 7553021 |
Optical system for monitoring eye movement |
June 30, 2009 |
| In one embodiment, a system for monitoring eye movement through optical observation of the eye includes an optical device configured for mounting on a frame for positioning the optical device on a user. The optical device includes a light source configured for emitting light along a |
| 7550698 |
Light sensor arrangement for auto-darkening lenses and method |
June 23, 2009 |
| A control for an auto-darkening lens or other optical device monitors light incident on the viewing area or in relatively close proximity to the viewing area of the lens to provide accurate light sensing and to avoid inadvertent blocking of light to one or more light sensors. Reflect |
| 7501613 |
Light detecting and angle of view compensation for optical devices and method |
March 10, 2009 |
| A control for a controllable optical device, such as an auto-darkening lens (ADL), such as used in welding helmets, respirators, or other device, includes a sensor sensing the direction of incident light and a control circuit responsive to incident direction information to provide fo |
| 7347551 |
Optical system for monitoring eye movement |
March 25, 2008 |
| A system for detecting eye closure through optical observation of the eye includes a frame configured to be worn on a user, a light source, and at least one eyepiece connected to the frame. The eyepiece has a reflective surface on a side facing the user's eye when the frame is positioned |
| 7342210 |
Remote control for auto-darkening lens systems and method |
March 11, 2008 |
| A wireless remote control is provided for an auto-darkening lens (ADL) system used in a welding helmet, respirator system or other device to control or to adjust settings of an ADL of a controllable light shutter. A display system facilitates providing information indicating the oper |
| 7161135 |
Multi-stage sensor for an auto-darkening lens for use in welding and method |
January 9, 2007 |
| A multi-stage control for an auto-darkening lens includes a first detector to detect initiation of welding and a second detector to detect continuation of welding after welding has been initiated. The first detector has relatively low sensitivity and fast response time; and the secon |
| 7150047 |
Indicator layout on an auto-darkening lens for use in welding |
December 19, 2006 |
| An indicator system and method for an auto-darkening lens or other device that is intended to be placed relatively close to the face of a wearer includes one or more indicators adjacent the lens and generally provides the indicators in the peripheral field of view of the wearer, allowing |
| 6554428 |
Method and apparatus for adjusting optical device to correspond to eye positions |
April 29, 2003 |
| A head-mounted display or other optical device which provides at least a first image to at least one eye of a user can be adjusted for changing the alignment of an image path with respect to a user's eye position. An alignment beam generator is mounted so as to move with the image path |
