Product Family Description
- AR Coated to Provide <,0.7% Reflectance per Surface for 750 — 1550nm
- Minimize Aberrations Including Spherical and Coma
- UV Fused Silica DCX Lenses Available
- Other Coating Options Available: Uncoated, MgF2, VIS 0, NIR I, VIS-EXT, VIS-NIR, and YAG-BBAR
TECHSPEC NIR II Coated Double-Convex (DCX) Lenses, also referred to as bi-convex lenses, have two positive, symmetrical faces with equal radii on both sides. These lenses are generally recommended for finite imaging applications with a conjugate ratio (ratio between object distance and image distance) between 0.2 and 5. At a conjugate ratio of 1, aberrations such as spherical aberration, chromatic aberration, coma, and distortion are minimized or cancelled due to the symmetric lens design. TECHSPEC NIR II Coated Double-Convex Lenses are available in a variety of substrates and coating options for the visible and NIR spectra.
Технические характеристики
Diameter (mm): 15.00 +0.0/-0.025 Back Focal Length BFL (mm): 18.99 Effective Focal Length EFL (mm): 20.00 Coating: NIR II (750-1550nm) Coating Specification: Rabs &le,1.5% @ 750 — 800nm
Rabs &le,1.0% @ 800 — 1550nm
Ravg &le,0.7% @ 750 — 1550nm Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More N-SF11 Surface Quality: 40-20 Power (P-V) @ 632.8nm: 1.5&lambda, Irregularity (P-V) @ 632.8nm: &lambda,/4 Centering (arcmin): Center Thickness CT (mm): 3.50 Center Thickness Tolerance (mm): ±,0.10 Edge Thickness ET (mm): 1.63 Radius R1=-R2 (mm): 30.60 Clear Aperture CA (mm): 14.00 f/#: 1.33 Focal Length Specification Wavelength (nm): 587.6 Focal Length Tolerance (%): ±,1.00 Numerical Aperture NA: 0.38 Type: Double-Convex Lens Typical Energy Density Limit: 8 J/cm2 @ 1064nm, 10ns Wavelength Range (nm): 750 — 1550 Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification. 8 J/cm2 @ 1064nm, 10ns
Regulatory Compliance RoHS 2015: Compliant Reach 224: Compliant Certificate of Conformance: View
