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Class Information
Number: 349/14
Name: Liquid crystal cells, elements and systems > Liquid crystal system > Liquid crystal eyewear (glasses, goggles, etc.) > For protection
Description: Subject matter wherein the liquid crystal cells operate to shield eyes from light/ electromagnetic radiation.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7585068 |
Method and apparatus for calibrating glare-shielding glasses |
Sep. 8, 2009 |
| 7567306 |
Liquid crystal ski goggles and methods of manufacturing the same |
Jul. 28, 2009 |
| 7564014 |
Apparatus for detecting welding light and protecting eyes from glare and method for controlling the same |
Jul. 21, 2009 |
| 7557870 |
Nuclear hardened liquid crystal display |
Jul. 7, 2009 |
| 7477330 |
Automatic darkening filter with offset polarizers |
Jan. 13, 2009 |
| 7470880 |
Apparatus for detecting electromagnetic wave and protecting eyes from glare |
Dec. 30, 2008 |
| 7446292 |
Eye-protection device having dual high voltage switching |
Nov. 4, 2008 |
| 7342210 |
Remote control for auto-darkening lens systems and method |
Mar. 11, 2008 |
| 7326364 |
Complex light-compensation C plate with two or more of C plates different in dispersion ratio value and liquid crystal display using the same |
Feb. 5, 2008 |
| 7271854 |
Nuclear hardened liquid crystal display |
Sep. 18, 2007 |
| 7232988 |
Microprocessor based automatically dimmable eye protection device with interruption prevention |
Jun. 19, 2007 |
| 7180047 |
Eye-protection device having dual high voltage switching |
Feb. 20, 2007 |
| 7026593 |
Eye-protection device having dual high voltage switching |
Apr. 11, 2006 |
| 7008055 |
Eye protection methods and apparatus |
Mar. 7, 2006 |
| 6995812 |
Liquid crystal display device |
Feb. 7, 2006 |
| 6992731 |
Electro-optic lens having multiple responsive regions of a variable degree of light transmission, method of fabrication thereof and method of operation thereof |
Jan. 31, 2006 |
| 6941577 |
Antiglare device for welding protective masks |
Sep. 13, 2005 |
| 6912018 |
Electro-optical glazing structures having total-reflection and transparent modes of operation for use in dynamical control of electromagnetic radiation |
Jun. 28, 2005 |
| 6891681 |
Anti-glare protection device |
May. 10, 2005 |
| 6884987 |
Microprocessor based automatically dimmable eye protection device with interruption prevention |
Apr. 26, 2005 |
| 6881939 |
Microprocessor based automatically dimmable eye protection device |
Apr. 19, 2005 |
| 6841772 |
Eye-protection device having dual high voltage switching |
Jan. 11, 2005 |
| 6796652 |
Glare-protection device with a screened evaluation circuit |
Sep. 28, 2004 |
| 6771327 |
Liquid crystal display device with an input panel |
Aug. 3, 2004 |
| 6687038 |
Optical pulse observing device |
Feb. 3, 2004 |
| 6646780 |
Sheet-like display medium including switching layer, and display element and device utilizing the same |
Nov. 11, 2003 |
| 6614409 |
Glare shielding device of welding helmet and method of controlling the same |
Sep. 2, 2003 |
| 6580405 |
Information processing device |
Jun. 17, 2003 |
| 6557174 |
Replaceable, self-contained expanded viewing light shield cartridge for welding helmet |
May. 6, 2003 |
| 6552316 |
Glare protecting device utilizing both optical and non-optical detectors and method of controlling thereof |
Apr. 22, 2003 |
| 6501443 |
Method of controlling liquid crystal lens in solar powered spectacles using light sensors |
Dec. 31, 2002 |
| 6483090 |
Glare protecting device and method of controlling thereof |
Nov. 19, 2002 |
| 6252829 |
Electronic watch |
Jun. 26, 2001 |
| 6170947 |
Light protection system |
Jan. 9, 2001 |
| 6097451 |
Liquid crystal shutter with low twisted nematic liquid crystal cells driven with a low frequency or DC voltage |
Aug. 1, 2000 |
| 6089693 |
Pagewidth ink jet printer including multiple pass defective nozzle correction |
Jul. 18, 2000 |
| 6070264 |
Welding helmet having auto-darkening and manually adjustable lens shade control |
Jun. 6, 2000 |
| 6067129 |
Welding lens with integrated display and method |
May. 23, 2000 |
| 6021520 |
Eyeshield for a welder's mask |
Feb. 8, 2000 |
| 5959705 |
Welding lens with integrated display, switching mechanism and method |
Sep. 28, 1999 |
| 5940150 |
Electro-optical glazing structures having total-reflection and transparent modes of operation for use in dynamical control of electromagnetic radiation |
Aug. 17, 1999 |
| 5880793 |
Glare protection device |
Mar. 9, 1999 |
| 5877825 |
Method and device including electro-optical shutter for protection from pulsed radiation |
Mar. 2, 1999 |
| 5793449 |
Protective device |
Aug. 11, 1998 |
| 5760852 |
Laser-hardened eye protection goggles |
Jun. 2, 1998 |
| 5751258 |
Liquid crystal lens driver electronics for eye protection, high speed shuttering with consistent performance |
May. 12, 1998 |
| 5519522 |
Eye protection device for welding helmets and the like with hot mirror and indium tin oxide layer |
May. 21, 1996 |
| 5515186 |
Eye protection device for welding helmets which reduces obliquely incident light |
May. 7, 1996 |
| 5448382 |
Nonlinear optical scattering screen viewer |
Sep. 5, 1995 |
| 5377032 |
Electro-optic light shutter and frame assembly with integrated switching mechanism |
Dec. 27, 1994 |
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