Reflective Beam Expander

The be04r and be06r beam expanders also feature through holes that accept 1 4 20 and m6 cap screws which can be used to mount the beam expander to the table or elevate the beam expander.

Reflective beam expander.

Our fixed magnification rotating lens optical beam expander optics have broadband ar coatings for either the vis or nir. The diamond turned techspec canopus reflective beam expanders are ideal for broadband or achromatic beam expansion and a wide range of light sources. 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. Available in standard 2 5x 5x 10x fixed magnification or customer specified fixed or variable magnification configurations osl smaller diameter reflective beam expanders are designed to be easy to use and to.

The fixed magnification sliding lens beam expanders are offered with optics that have either narrowband or wideband ar coatings. Reflective beam expanders are modified cassegrain and gregorian mirror systems. Reflective beam expanders are much less common than transmissive beam expanders but have several advantages that make them the right choice for certain applications. Reflective beam expanders do not suffer from chromatic aberration whereas the magnification and output beam collimation of transmissive beam expanders is wavelength dependent.

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. They have minimal wavefront distortion and their achromatic all reflective design enables them to be used with tunable ultraviolet and ultrafast lasers. 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.

We also offer variable magnification beam expanders and 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. 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. The fact that a negative lens has over corrected spherical aberration as mentioned above permits us to bend the negative entrance element of a galilean beam expander in such a way that it will compensate.