Plano-convex lens element #11-622

fused silicavisiblenear-infrared

Description
TECHSPEC® Thin Fused Silica Plano-Convex (PCX) Laser Lenses are manufactured with an ultra-thin center thickness to enable lighter, more compact optical assemblies. These lenses use ion-beam sputtered (IBS) low-loss anti-reflection (AR) coatings that cover visible and near-infrared (NIR) bands. They are available in standard imperial diameters with effective focal lengths from 50 mm to 2000 mm. IR fused silica has reduced OH- content, increasing transmission across the NIR and reducing UV transmission compared to UV fused silica.

Key features

• Ultra-thin center thickness for compact, lightweight systems
• Substrate options: UV-grade or IR-grade fused silica
• Low-loss broadband IBS anti-reflection (AR) coatings (various BBAR ranges available)
• Standard imperial sizes; effective focal lengths from 50 mm to 2000 mm

Substrates and transmission
IR fused silica (low OH-) provides improved transmission in the NIR; UV fused silica preserves transmission in the UV. Select substrate grade and coating range according to spectral requirements and application (laser delivery, imaging, collimation).

Technical specifications

• Centering (arcmin): <3
• Surface quality: 20-10
• Power (P-V) @ 632.8 nm: 1.5λ
• Irregularity (P-V) @ 632.8 nm: λ/8
• Focal length tolerance: ±1%