The T81-20X Laser Beam Expander provides a low cost means of focusing and shaping laser beams with a high degree of accuracy. This Galilean 20X beam expanders incorporate the highly regarded Tropel optical designs with improved adjustability and mounting. The T81-20X has an expansion ratios of 20x and a means for continuous focus change. As the power increases, the beam divergence decreases proportionately, providing a greater collimation range. These beam expanders can be conveniently attached to most HeNe lasers with the 1-32 accessory thread and are equipped with precision beam centering adjustments to compensate for slight decentrations of the entering laser beam.
Технические характеристики
- Magnification 20x
- Wavelength Range 632.8 nm (480-1100 nm with reduced transmission)
- Entrance Aperture 1.5 mm
- Exit Aperture 25.0 mm
- Damage Threshold 100 W/cm2 CW
2 J/cm2 with 10 nsec pulses, typical - Focus Range 4 m to
- Mounting Threads 1.0 in. x 32 TPI
- Input Beam Diameter 1.0 mm
- Transmission T > 95% at 632.8 nm
- Wavefront Distortion
