ST Series Zoom Beam Expanders
for collimation of high power lasers
variable magnification from 1x up to 8x
additional 8 "click into place points“ guarantee best
reproduction of magnification
high pointing stability < 1 mrad
Galilei-design
available with and without adjustable divergence
UV beam expander made completely from quartz material
max. exit pupil depending on the model f30mm or f50mm
Model
Wavelength
ST-S6ASS2074/126
YAG, 1064nmm
ST-S6ASS2074/123
HeNe, 633nm
ST-6ASS2074/121
Green YAG, 532nm
ST-S6ASS2073/126
YAG, 1064nm
ST-S6ASS2073/123
ST-6ASS2073/121
ST-S6ASS2075/126
ST-S6ASS2076/126
ST-S6ASS5075/075
VBE Series Zoom Beam Expanders
Continuous variation of magnification 2x ... 8x possible
Wavelengths 355 nm, 405 nm, 532 nm, 633/780/830 nm or 1064 nm
Settings of zoom and focusing scales according to product specific graph
Mounting in customer machine at surface [A]
Consideration of convergence correction at maximum setting of movable lens elements
Order No.
Wavelength (nm)
Magnification factor
Max. entrance beam (mm)
Max. exit beam (mm)
Lens elements
Mounting diameter or thread (mm)
VBE4401-402-000-20
355
2 ... 8x variable
3.4*
31
4
37.6
VBE4401-380-000-20
405
6.0*
VBE4401-446-000-20
532
4.0*
VBE4401-257-000-20
8.0*
VBE4401-258-000-20
633/780/ 830
VBE4401-359-000-20
1064
VBE4401-256-000-20
* Beyond defined zoom factors, the entrance beam is max. 31 mm / zoom factor.
beam expander