Symmetrical lens system for use in copying machine
System and method for extending viewing angle of light...
System and method for inducing far field transparency with...
System for converting optical beams to collimated flat-top...
System for converting optical beams to collimated flat-top...
Taking lens for fixed-focus photographic camera
Taking lens system
Taking lens system
Teledaga mirror
Telescopic camera
Thin type optical lens system for taking image
Thin type optical lens system for taking image
Torus conformal window and sensor system using the window
Triplet lens system
Two element optical system, a camera using it and method of maki
Two piece type optical lens
Two position variable focal length lens
Two-element optical system and camera and method of making a cam
Two-piece type optical imaging lens
Viewfinder optical system