Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Surface light source element and liquid crystal display device, sign device and traffic control sign device using same










Image Number 4 for United States Patent #6099135.

A surface light source device, comprising a light source (2); a light conductor (1) which has a light incident face (11) on at least one side end surface thereof which confronts the light source (2), and a light emitting face (12) on one surface thereof which is substantially perpendicular to the light incident face (11); and a light angle varying sheet (3) which is disposed at a side of the light emitting face (12) of the light conductor (1), wherein at least one of the light emitting face (12) and a back surface (13) of the light conductor (1) comprises a minute structure having an average slant angle of 0.5 to 7.5 degrees. The light angle varying sheet (3) may comprise a prism sheet having a plurality of prisms (31) which are formed parallel to one another on at least one surface thereof. The minute structure may comprise a roughened surface which includes a plurality of fine convex members each having a substantially spherical surface or a plurality of prism arrays having slant surfaces which extend parallel to said light incident face (11) and which have an average slant angle of 0.5 to 7.5 degrees.








 
 
  Recently Added Patents
Charged-particle beam lens
Detection of procedural deficiency across multiple business applications
Method and apparatus to maintain welding current to compensate for deterioration of welding contact tip
Device, information processing method, and computer-readable storage medium
Process for preparing soybean curd using micronized solution of soybean curd
Etching apparatus and methods
Shower bench
  Randomly Featured Patents
Device for attaching a flexible clothing in a textile machine
Full grip cookware handle
Gas collection system for anaerobic ponds
Fastening bolt assembly providing both axial and radial holding forces
Sunshade of a truck cab
Process for selective extraction of metal ions from aqueous solutions and extracting agents suitable for that purpose
Exhaust header
Horizontal sync pulse detection for video signal decoding
Oxidative fluorinator compounds as antimicrobials
Substrate for ink jet head, ink jet head using the same, and manufacturing method thereof