Holder for optical window for thermal or spectroscopic determination of processes in process space has thermal insulation ring between support and slide ring to prevent rapid heat transfer from optical window to holding device

摘要

The device has a holding device in which the optical window (6) is arranged, that is joined to the process space housing wall (10) and that consists of a cylinder (2) with a sealing surface for supporting the optical window and a screw-in cylindrical part (1) and a slide ring (4) arranged between the optical window and the screw-in part. A thermal insulation ring (7) is arranged between the support and the slide ring to prevent rapid heat transfer from the optical window to the holding device.