3464133

Information

• Patent Grant
• 3464133

• References
• Source

• Patent Number

  3,464,133

• Date Filed

  Not available

• Date Issued

  Tuesday, September 2, 1969
  55 years ago

• CPC

  • G02B6/0046 - Tapered light guide
  • G02B6/005 - provided by one optical element, or plurality thereof, placed on the light output side of the light guide
  • G02B6/0068 - Arrangements of plural sources
  • G09F2013/1827 - Prismatic window
  • G09F2013/1831 - using more than one light source
  • G09F2013/1836 - using a frame-like light source

• US Classifications

  • 040 - Card, picture, or sign exhibiting