Freeze Dryer with an Inspection Window

摘要

The invention relates to a freeze dryer (1) which comprises an inspection window (15) e.g. in the region of a door (14). According to the invention the inspection window (15) comprises a reduced transmissibility for electromagnetic radiation. This might be provided by coating a base body (16) of the door (14) with a coating or layer (17) having a reduced transmissibility for radiation. The coating or layer might be arranged on the outer side or the inner side of the door (14). It is also possible that a base material of the inspection window (15), e.g. transparent plastic glass, is mixed with an addition having a reduced transmissibility for radiation.

主权项

1. A freeze dryer comprising an inspection window made of an organic glass material or an inorganic glass material,
the inspection window comprising a layer, a cover, a coating or an addition having a transmissibility for radiation which is smaller than a transmissibility for radiation of the organic glass material or an inorganic glass material, a transmissibility for radiation of the inspection window with the addition, layer, cover or coating being smaller than a transmissibility for radiation of the inspection window without the addition, layer, cover or coating.