25mm Dia. x 50mm EFL, Uncoated, Precision Laser Aspheric Lens

Product Details Diffraction Limited at Designed Nd:YAG Laser Wavelengths Laser Damage Designed Coatings on UV Fused Silica Substrates Specified Slope Error to Guarantee Low Mid-Spatial Frequency Errors High Precision Laser Grade Aspheric Lenses are also Available TECHSPEC Precision Laser Aspheric Lenses are designed to maximize performance in high power laser applications. Featuring diffraction limited performance at their designed wavelengths these aspheric lenses are available with high laser damage threshold coatings optimized at the most common Nd:YAG laser wavelengths. With a λ/2 aspheric surface figure and 0.35μm/mm slope error, TECHSPEC Precision Laser Aspheric Lenses minimize the mid-spatial frequency (MSF) errors and are ideal for integration into demanding laser processing, cutting, and additive manufacturing applications. Featuring UV fused silica substrates, these aspheres are highly durable and resistant to thermal expansion. Specifications Physical & Mechanical Properties Diameter (mm): 25.00 +0.000 / -0.025 Center Thickness CT (mm): 7.20 +0.000 / -0.10 Edge Thickness ET (mm): 3.82 Clear Aperture CA (mm): 22.5 Shape of Back Surface: Plano Bevel: Protective as needed Optical Properties Effective Focal Length EFL (mm): 50.00 @ 355nm Back Focal Length BFL (mm): 45.1 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Fused Silica f/#: 2 Numerical Aperture NA: 0.25 Coating: Uncoated Wavelength Range (nm): 200 – 2200 Design Wavelength DWL (nm): 355 Surface Quality: 20-10 Asphere Figure Error, RMS @ 632.8nm: λ/2 RMS and 2.5λ PV Conjugate Distance: Infinite Slope Error Aspheric Side: 0.35μm/mm per 1mm Window Beam Deviation @ 587.6nm (arcmin): <2.5 Power (diopters): 20.00 Regulatory Compliance Certificate of Conformance: View ×