Vacuum Fittings Feedthroughs - Granzow
Vacuum Fittings Feedthroughs - Granzow
Vacuum Fittings Feedthroughs - Granzow
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CF-Observation Windows<br />
All UHV observation windows with CF<br />
flanges are of a flat and embedded<br />
design (Zero-length design). This<br />
design provides a much wider viewing<br />
angle compared to observation windows<br />
manufactured according to a pottype<br />
design.<br />
Standard types of glass are normally<br />
used for visual observations, for taking<br />
photographs of experimental details<br />
and, among other things, for pyrometric<br />
measurements.<br />
Advantages to the User<br />
- Embedded design<br />
Transmissivity [%]<br />
- Optically plane-parallel almost up to<br />
the glass/metal seal<br />
- Flange offering a wide viewing angle<br />
––––– Sapphire<br />
–– · –– Kodial<br />
- - - - - Borosilicate<br />
Wavelength [nm]<br />
Optical transmissivity for the UHV observation windows<br />
Technical Data<br />
DN<br />
CF<br />
40 63 100 160<br />
α<br />
Thickness of the glass (s)<br />
mm<br />
3.0 3.5 6.0 8.0<br />
s<br />
Diameter of viewing area (d)<br />
mm<br />
38 65 90 135<br />
h<br />
Viewing angle (a) °<br />
Spacing of the glass (h), approx. mm<br />
38 57 71 92<br />
11.0 16.4 8.0 10.0<br />
Viewing distance<br />
mm<br />
50 50 50 50<br />
Wavelength range<br />
nm<br />
400 to 3000 400 to 3000 400 to 3000 400 to 3000<br />
d<br />
50<br />
Material<br />
Vacon Vacon Vacon Vacon<br />
(compen- (compen- (compen- (compensation<br />
ring) sation ring) sation ring) sation ring)<br />
Mean transmission ratio %<br />
93 in the 93 in the 93 in the 93 in the<br />
visible range visible range visible range visible range<br />
Type of glass<br />
Kodial Kodial Kodial Kodial<br />
Max. heating rate<br />
5min<br />
5 5 5<br />
Max. bakeout temperature °C<br />
400 400 400 400<br />
Dimensional drawing for UHV observation<br />
windows<br />
Ordering information<br />
UHV observation window<br />
Part No.<br />
210 112 210 114 210 115 210 116<br />
C13 44<br />
Oerlikon Leybold <strong>Vacuum</strong> Full Line Catalog
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