Thus reflective beam expanders can be used with collimated polychromatic light without the need of any fine focus adjustment.
Reflective beam expander.
Reflective beam expanders are modified cassegrain and gregorian mirror systems.
Canopus reflective beam expanders.
The all reflective design enables these beam expanders to be used with a variety of lasers including tunable ultraviolet and ultrafast sources while the innovative design ensures high precision with minimal wavefront distortion.
Reflective beam expanders are much less common than transmissive beam expanders but have several advantages that make them the right choice for certain applications.
For a germanium beam expander with n 4 f 2 m 5 the convergence angles are γ gal 1 7 mrad and γ kep 2 6 mrad.
To secure the reflective beam expanders to an optical table use two cl2 cl3 or cl6 table clamps to hold the lip of the housing against the table s surface.
The diamond turned techspec canopus reflective beam expanders are ideal for broadband or achromatic beam expansion and a wide range of light sources.
Canopus reflective beam expanders.
The all reflective design enables these beam expanders to be used with a variety of lasers including tunable ultraviolet and ultrafast sources while the innovative design ensures high precision with minimal wavefront distortion.
The fixed magnification sliding lens beam expanders are offered with optics that have either narrowband or wideband ar coatings.
They have minimal wavefront distortion and their achromatic all reflective design enables them to be used with tunable ultraviolet and ultrafast lasers.
The techspec canopus reflective beam expanders feature an all reflective monolithic design ideal for broadband or achromatic beam expansion and a wide variety of sources from the ultraviolet to the infrared including tunable ultraviolet and ultrafast lasers.
Our fixed magnification rotating lens optical beam expander optics have broadband ar coatings for either the vis or nir.
We also offer variable magnification beam expanders and reflective beam expanders.
Both the object and the image are located at infinity which means that the input and output beams are collimated afocal system we shall assess how well that can be achieved with two spherical mirrors figure 1 shows the cassegrain configuration.
Reflective beam expanders do not suffer from chromatic aberration whereas the magnification and output beam collimation of transmissive beam expanders is wavelength dependent.
