Spectroscopic image projecting device for use at e.g. trade shows, has optical projection interface including matrix assembly of convergent aspherical Fresnel lenses for projecting images from input sources onto screen
FR2847041A1
Bi-visional device with rotary prismatic selector
WO0229472A1
Method for 3d adaptation
FR2812404A1
Space projecting large scale image Fresnel lens three dimensional image having Fresnel lens ocular persistence speed rotating producing floating image source observer viewed.
FR2801715A1
Domestic appliances/home automation image projection mechanism having first image projection Fresnel lens and second increased lens type increasing image size/ projecting front space image.
FR2797706A1
Virtual balance
FR2795829A1
Device for reliefing video images and any luminescent or, and light-emitting information
FR2790575A1
Device for allowing the immatal splashing of video images into a vacuum
FR2790574A1
Device for providing lighting in relief and virtual light-emitting information
