25mm Dia. x 25mm EFL Precision Aspherized Achromatic Lens

Product Details All Glass Color-Corrected Asphere Ideal for Imaging and Biotech Applications MgF 2 Coated Featuring an all glass design, TECHSPEC Precision Aspherized Achromatic Lenses are truly achromatic, with less than 10μm of lateral chromatic aberration. These achromatic lenses are diffraction limited over the full visible spectrum, and have high numerical apertures for increased light throughput and small spot sizes. TECHSPEC Precision Aspherized Achromatic Lenses are ideal for fluorescence microscopy, low signal-to-noise imaging applications, and multiple laser biotech applications. Specifications General Type: Achromatic Lens Physical & Mechanical Properties Diameter (mm): 25.00 +0.0/-0.1 Center Thickness CT (mm): 25.00 ±0.2 Center Thickness CT 1 (mm): 17.00 Center Thickness CT 2 (mm): 8.0 Edge Thickness ET (mm): 16.92 Clear Aperture CA (mm): 22.5 Centering (arcmin): ≤3 Optical Properties Effective Focal Length EFL (mm): 25.00 Focal Length Specification Wavelength (nm): 587.6 Back Focal Length BFL (mm): 16.40 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More N-PK51 / S-NPH2 f/#: 1.00 Numerical Aperture NA: 0.50 Coating: MgF 2 (400-700nm) Coating Specification: R avg ≤1.75% @ 400 – 700nm Wavelength Range (nm): 450 – 700 Surface Quality: 20-10 Asphere Figure Error, RMS @ 632.8nm: 0.8λ Regulatory Compliance Certificate of Conformance: View ×