DISPLAY APPARATUS

• US 3,464,133 A
• Filed: 10/20/1965
• Issued: 09/02/1969
• Est. Priority Date: 04/30/1965
• Status: Expired due to Term

• Current Assignee: Poray Marcel C K De
• Original Assignee: Poray Marcel C K De
• Inventors: PORAY MARCEL C K DE
• Application Number:
  US04/502,773
• Time in Patent Office: 1,413 Days
• US Class Current: 40/546
• CPC Class Codes: G02B 6/0046 Tapered light guide, e.g. wedge-shaped light guide
• CPC Class Codes: G02B 6/005 provided by one optical element, or plurality thereof, placed on the light output side of the light guide
• CPC Class Codes: G02B 6/0068 Arrangements of plural sources, e.g. multi-colour light sources
• CPC Class Codes: G09F 2013/1827 Prismatic window
• CPC Class Codes: G09F 2013/1831 using more than one light source
• CPC Class Codes: G09F 2013/1836 using a frame-like light source

Claims