Imaging Optics

Focusing Optics

The specbos and spectraval radiometers in their basic configuration can measure in Luminance mode only with diameters of 4 mm and more.

JETI offers three focusing optics to reduce the measuring diameter. Their data are shown in the following table.

Focusing Optics #1 #2 #3
Measuring diameter 3 mm 1 mm 0.5 mm
Measuring distance (from front face of the optics) 70 mm 26 mm 46 mm
Field of view 2.1° 1.9° 0.6°
Length of optics 77 mm 26 mm 77 mm
Part number specbos 1211 focus ACC 006/1 ACC 007/1 ACC 008/1
Part number spectraval ACC 006/2 ACC 007/2 ACC 008/2

It is only possible to use the focusing optics with specbos 1211 focus. These optics cannot be used with the standard versions of the instrument.

Special imaging optics on customer request