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2.8 CF Lens and Protective Window
The optional CF lens allows the measurement of very
small objects and can be used in combination with all
LT, 1M, 2M, 3M and 4M models. The minimum spot size
depends on the used sensing head. The distance is
always measured from the front edge of the CF lens
holder or laminar air purge collar.
The installation on the sensing head will be done by turning the CF lens until end stop. To combine it with the
massive housing please use the version with external thread M12x1.
Versions Overview:
CF lens for installation on sensing head [LT]
CF lens for installation on sensing head [1M/ 2M/ 3M]
CF lens with external thread for installation in massive housing [LT]
CF lens with external thread for installation in massive housing [1M/ 2M/ 3M]
For protection of the sensing head optics a protective window is available. The mechanical dimensions are
equal to the CF lens. It is available in the following versions:
Protective window for installation on sensing
head [LT]
Protective window for installation on sensing
head [1M/ 2M/ 3M]
Protective window with external thread for
installation in the massive housing [LT]
Protective window with external thread for
installation in the massive housing [1M/ 2M/ 3M]
Typical Transmission values* if the
protective window is used (average
values):
LT 0,83
1M/ 2M/ 3M 0,93
4M 0,92 * deviations possible
Typical Transmission values* if the CF lens is
used (average values):
LT 0,78
1M 0,80
2M 0,87
3M 0,92
4M 0,93 * deviations possible
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information@itm.com1.800.561.8187