Projection system for wide image projection used for advertising wall painting, has projector associated cooling device which is provided for cooling projector and is provided with liquid serving as cooling medium

摘要

The projection system has housing (1) and the projector (2). A projector associated cooling device (6) is provided for cooling the projector. The cooling device is provided with liquid serving as a cooling medium. The liquid is alcohol, oil or water. The housing is executed as waterproof and/or weatherproof and/or soundproof housing. The cooling device comprises a thermally insulated spacer (7) for conducting the liquid.