一、标准型BK7材质（LCN-C - Standard BK7 Rectangular Cylindrical Plano-Concave Lenses）
产品技术参数描述：
Specifications | |
Antireflection Coating | User specified |
Center Thickness | tc±0.6 mm |
Chamfer | Slight protective bevel |
Clear Aperture (CA) | ≥ 90% of central dimension |
Design Wavelength | 587.6 nm |
Dimensional Tolerance | ±0.6 mm |
Flat Island Width (Δ) | 0.5±0.4 mm |
Optical Material | N-BK7 |
Paraxial Focal Length | f±2% |
Surface Quality | 60-40 scratch and dig |
Wedge (tc/x) | ≤ 8 mrad |
Specifications | |
Antireflection Coating | Wavelength user specified |
Center Thickness | tc±0.25 mm |
Chamfer | 0.35 mm at 45° typical |
Clear Aperture (CA) | ≥ 85% of central dimension |
Damage Threshold | 10 J/cm2, 20 nsec, 20 Hz @ 1064 nm |
Dimensional Tolerance | +0/-0.25 mm |
Optical Material | UV-grade fused silica |
Paraxial Focal Length | f±0.5% |
Surface Figure | x direction: λ/4 per cm rms at 633 nm before coating |
Surface Quality | 20-10 scratch and dig |
Wedge | ≤ 3 arc minutes |
Antireflection Coating | |
Broadband | Ravg ≤ 0.5% per surface |
Narrowband | R ≤ 0.25% per surface |
产品技术参数描述：