30mm Dia., 0.86 Numerical Aperture VIS Coated, Aspheric Lens

Product Details Diameters from 10 to 200mm Focal Lengths from 7.5 to 300mm Broadband AR Coatings Available TECHSPEC Aspheric Lenses are designed to focus light while eliminating spherical aberration from divergent light sources in applications including focusing the output of a laser diode. Aspheric lenses can increase the numerical aperture of a lens while minimizing system aberrations. Aspheric lenses may also reduce the number of elements needed in a multi-element system. Aspheric lenses can reduce overall system weight while providing advantages such as increasing throughput or simplifying assembly. TECHSPEC Aspheric Lenses feature low f/#’s for optimum light gathering performance. Prescription data is available to easily integrate these aspheric lenses into an optical system. These lenses have also been computer optimized to eliminate spherical aberration while minimizing higher order aberrations. VIS coating option provides less than 1.5% reflection from 425 – 675nm. NIR coating option provides less than 1.5% reflection from 600 – 1050nm. Contact our sales department for volume pricing or for help specifying a custom aspheric lens. Specifications General Type: Aspheric Lens Physical & Mechanical Properties Diameter (mm): 30.00 +0.0/-0.1 Center Thickness CT (mm): 13.50 ±0.1 Edge Thickness ET (mm): 1.78 Clear Aperture CA (mm): 27 Centering (arcmin): ≤5 Shape of Back Surface: Plano Bevel: Protective as needed Optical Properties Effective Focal Length EFL (mm): 17.50 @ 587.6nm Back Focal Length BFL (mm): 9.43 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More N-SF5 f/#: 0.58 Numerical Aperture NA: 0.86 Abbe Number (v d ): 32.25 Index of Refraction (n d ): 1.673 Coating: BBAR (425-675nm) Coating Specification: R avg ≤1.5% @ 425 – 675nm Wavelength Range (nm): 425 – 675 Focal Length Specification Wavelength (nm): 587.6 Aspheric Design Wavelength (nm): 587.6 Surface Quality: 60-40 Asphere Figure Error, RMS @ 632.8nm: 1.2λ Conjugate Distance: Infinite Power (diopters): 57.14 Material Properties Coefficient of Thermal Expansion CTE (10 -6 /°C): 7.9 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 235: Compliant ×