Resources Contact Us Home
Gradient-index lens, and method for producing the same

Image Number 10 for United States Patent #6903877.

A micro prismatic structure is formed inside the light transmission face of a gradient-index lens, in which the projections have a height of at least 0.25 .lambda. and the distance between the neighboring projections is at most .lambda., based on the applied wavelength .lambda.. Preferably, the micro prismatic structure has conical projection units that are aligned in the light transmission face of the lens in a mode of hexagonal, tetragonal or orthorhombic arrangement. The conical projections may be in any form of circular cones, polygonal cones, flat-headed circular cones (circular cones of which the apex has been cut horizontally) or flat-headed polygonal cones .

  Recently Added Patents
Solid-state imaging device and electronic apparatus with antireflection structure
Automatic logical position adjustment of multiple screens
Routing of data including multimedia between electronic devices
Chitosan hydrogel derivatives as a coating agent with broad spectrum of antimicrobial activities
Estrogen receptor ligands
Potential separation for filling level radar
Systems and methods to provide communication history for communication devices
  Randomly Featured Patents
Process for forming a yarn using a partially oriented carrier filament
Snap-hook tether
Bale splitter and a method for splitting a wrapped bale and for separating wrapping material from the bale
Secure messaging
Apparatus and method for filling liquid containers
System and method for analyzing security policies in a distributed computer network
Control arm for an all terrain vehicle
Radiographic image data recording and reading apparatus
Method for processing motion information
Sreading knives, doctor blades and crepe scrapers and powder metallurgical method for producing the same