• Very Economical
• Uncoated
• Offers Higher NA and Less Spherical Aberration than Spherical Lenses

This Aspheric Condenser Lens is ideal for high-efficiency illumination applications. Compared to spherical lenses, this lens introduces fewer aberrations, offers larger apertures, and provides lower f/d ratios. This aspheric condenser lens is designed for collimating light from a lamp, LED, or similar light source; for best performance in this application, the plano side of the lens should face the source.

• Focal Length Tolerance: ±5%
• Design Wavelength: Visible
• Wavelength Range (Uncoated Lenses): 380 - 2100 nm
• Surface Quality: 60 - 40 Scratch-Dig
• Diameter Tolerance: +0.0 mm / -0.5 mm
• Center Thickness Tolerance: ±0.3 mm
• Edge Thickness Tolerance: ±0.3 mm
• Centering Tolerance (Wedge): 30 arcmin
• Temperature (Max): 250 °C
• Glass Type: B270 Optical Crown Glass
• RoHS: Compliant
• Diameter: 18 mm
• f: 15 mm
• f/d: 0.83
• Clear Aperture (mm): >90%
• f_b: 10.5 mm
• Numerical Aperture: 0.534
• Center Thickness: 6.8 mm
• Edge Thickness: 2.5 mm
• Non-Aspheric Surface: Plano