Beam expanders/collimators can be used to either expand or reduce the laser beam diameter. The BEC-19 has a sealed design with easily removable optics. The adjustment ring allows for precise control of beam divergence, without rotating the optic or changing the overall length of the expander.

BEC-19-2.0-10.6 Shown.

• Machined from Aluminum, Brass & Stainless Steel
• Fixed Overall Length for Easy Mounting
• Sealed Design
• Galilean Telescope Design Ensures Minimum Aberration
• Easily Removable Optics for Cleaning & Expansion Changes
• 1"-32 Mounting Thread, for Best Results Order with TM-19
• Available for All Wavelengths
• Optics are AR Coated for Specific Wavelength
• Custom Expansion Ratios
• Max. Output Aperture (Positive Expander) - 23mm