Search International and National Patent Collections

1. (WO1998049598) METHOD AND DEVICE FOR COOLING OVERHEAD PROJECTION MODULES

Pub. No.:    WO/1998/049598    International Application No.:    PCT/DE1998/001096
Publication Date: Fri Nov 06 00:59:59 CET 1998 International Filing Date: Sun Apr 19 01:59:59 CEST 1998
IPC: G03B 21/10
G03B 21/16
Applicants: SEUFERT, Heinz
Inventors: SEUFERT, Heinz
Title: METHOD AND DEVICE FOR COOLING OVERHEAD PROJECTION MODULES
Abstract:
The invention relates to a method and a device for cooling overhead projection modules, especially the lighting devices of overhead projection modules. According to the invention, a coolant circulation system for circulating coolant and a refrigerating machine for refrigerating the coolant are provided. The refrigerated coolant cools the air in a plurality of overhead projection modules and/or lighting devices of overhead projection modules in an essentially closed circuit encompassing only the air from said overhead projection modules and/or lighting devices. This allows the air to be conditioned, especially dehumidified, purified or cooled by means of a central refrigerating machine, in an economical way.