Gauze projection screens are made of kind of "fishnet" material, meaning the fabric has many small holes (mesh material, gauze material). Gauze screens can be used for front and rear projections at the same time. Due to the many holes the reflection values are not as good as with normal front projection screens, however there are other huge advantages - especially in combination with laser light projections:
Due to the many small holes the laser beams are not only reflected or create a beam on the surface - parts of the beams can also pass through the material. Together with fog or haze in the room this gives a 3D like effect: The diverging beam makes the spectators feel like they would be integrated in th show. The use of a gauze screen thus provides opportunities of both types of shows - for beam shows as well as for graphics/text shows.
Both types, the front and the rear projection screen, are very suitable for use with lasers. Especially the front projection screen gives great results if lasers are used together with video projections, e.g. for video mapping. Gauze Screens / Mesh screens are available of different types of fabric/material: Most common is a medium grey screen type, but there are also special transparent materials available that give more of a glitter effect when projected on. The major difference basically is the size of the holes and the thickness of the gauze material. The material itself influences the reflection factor and the transluminescence.