The 355nm UV Beam Expander is a type of transmissive beam expander, typically composed of two or more optical elements. The main function of this beam expander is to change the size and divergence angle of the beam. This type of beam expander can improve the collimation of the beam, resulting in a smaller focused spot.

In terms of application fields, UV Beam Expander is mainly used in laser systems, where the magnification is the magnification of the beam diameter. The product of the spot size and divergence angle of the laser beam output from the laser is an optical invariant, approximately a certain value. When the waist radius is increased by x times, its divergence angle is correspondingly compressed to 1 person, and the compressed divergence angle is actually the collimation of the laser.

In terms of features and advantages, 355nm UV Beam Expander has fused silica substrate, high design and processing accuracy, all system wavefront distortion is less than 1/10 wavelength, Galileo structure, no internal focus. It also has precise beam expansion magnification, with optical image quality reaching the diffraction limit. The single-sided transmittance of the lens is greater than 99.8%, and the damage threshold is as high as 10J/c ㎡.

355nm non adjustable divergence angle UV Beam Expander

Specification