Apparatus and process for using Fresnel zone plate array for pro
Assembled multi-surface optical component and method for...
Astigmatic lens for use in detecting a focussing error in an opt
Base plate, lens sheet, and projection screen
Catadioptric Fresnel lens
Chromatic aberration correcting element and its application
Chromatic aberration correcting element and its application
Complex optical element and method for manufacturing thereof
Concentrating type solar collection and daylighting system...
Correction lens system of an exposure apparatus for a cathode-ra
Cylindrical lens and a manufacturing method for the same
Eccentric Fresnel lens sheet and method of making same
Electronic apparatus with a foldable display
Fresnel lens
Fresnel lens
Fresnel lens and an illuminating device provided with the...
Fresnel lens for projection screens
Fresnel lens sheet and rear projection screen
Fresnel lens sheet, process of producing Fresnel lens sheet,...
Fresnel lens with aspheric grooves