Fresnel lens sheet and transmission type projection screen

Fresnel lens sheet and transmission-type projection screen

Fresnel lens sheet for rear projection screen

Fresnel lens sheet holding structure and rear projection...

Fresnel lens sheet, light-transmission screen, and...

Fresnel lens sheet, process of producing Fresnel lens sheet,...

Fresnel lens sheet, rear projection screen and rear...

Fresnel lens sheet, rear projection screen and rear...

Fresnel lens sheet, rear projection screen, and...

Fresnel lens sheet, transmission screen provided with the...

Fresnel lens with aspheric grooves

Fresnel lens with cavities

Fresnel lens, backprojection screen, and corresponding...

Fresnel lens, screen, image displaying device, lens forming...

Fresnel magnifying lens cardholder

Fresnel magnifying lens for forming a hand-held pocket-sized hyb

Fresnel optical element and projection display apparatus

Fresnel optical element and projection display device

Fresnel solar concentrator array with centered universal pivots

Fresnel zone plate based on elastic materials