CURVED PROJECTOR SCREEN

摘要

The invention relates to a projector screen having a projection surface essentially forming a spheric section, comprising a rigid structure (1) that is preferably male of a metal, and a membrane (2) that is preferably made of a textile, the membrane being supported by said rigid structure (1), characterised in that the membrane (2) envelops the rigid structure (1) and in that a means (3) for generating a vacuum is provided in order to keep the membrane (2) pressing against the rigid structure (1). Application to screening rooms.

主权项

1. Projection screen having a projection surface forming a section of a sphere, comprising a rigid structure, and a membrane supported by said rigid structure, the membrane enveloping the rigid structure, and a depressurisation means that holds the membrane under negative pressure against the rigid structure, wherein the membrane is microperforated with a porosity making the screen trans-sound and compatible with the negative-pressure means.