25mm Dia. x -50mm FL, Uncoated, UV DCV Lens

Product Details Negative Focal Lengths for Beam Expansion or Light Projection Applications Wavelength Range of 200 – 2200nm Popular UV-AR Coating Option Available TECHSPEC UV Fused Silica Double-Concave (DCV) Lenses are manufactured utilizing state-of-the-art CNC equipment. Zygo’s GPI-XP Interferometer is used to ensure the surface accuracy and performance of these optics. UV Grade lenses are precision manufactured using research-grade synthetic fused silica. TECHSPEC UV Fused Silica Double-Concave (DCV) Lenses, in addition to providing excellent transmission characteristics and higher operating temperatures, synthetic fused silica lenses also exhibit exceptional inclusion specification and chemical purity. These lenses make a superior choice for many laser and imaging applications, particularly those involving ultraviolet wavelengths. A broadband anti-reflection coating is available for optimized throughput in the ultraviolet spectrum. Specifications General Type: Double-Concave Lens Note: Max. Flat Annulus is 0.3mm Physical & Mechanical Properties Diameter (mm): 25.00 +0.0/-0.025 Center Thickness CT (mm): 2.50 ±0.10 Edge Thickness ET (mm): 5.78 Centering (arcmin): <1 Clear Aperture CA (mm): 24.0 Optical Properties Effective Focal Length EFL (mm): -50.00 Focal Length Specification Wavelength (nm): 587.6 Back Focal Length BFL (mm): -50.85 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More Fused Silica (Corning 7980) f/#: 2.00 Coating: Uncoated Wavelength Range (nm): 200 - 2200 Surface Quality: 40-20 Power (P-V) @ 632.8nm: 1.5λ Irregularity (P-V) @ 632.8nm: λ/4 Focal Length Tolerance (%): ±2 Radius R 1 =-R 2 (mm): -46.23 Numerical Aperture NA: 0.25 Regulatory Compliance RoHS 2015: Compliant × Reach 219: Compliant × Certificate of Conformance: View ×