Brand: Bena
Customized: Customized
Surface Quality: 20/10
Surface Roughness: Ra < 1nm
Surface Accuracy: Rms ≤ λ/80 @ 632.8nm
Edge: As Required
Material: Bak2, Zf1
Packaging: Carton
Productivity: 80000000pcs/year
Transportation: Air, DHL
Place of Origin: Changchun
Supply Ability: 80000000pcs/year
Certificate: ISO9001
HS Code: 90019090
Port: Dalian,Changchun,Beijing
Payment Type: T/T
Incoterm: FOB,CFR,CIF,EXW,FCA,FOB,CFR,CIF,EXW,FCA
Focusing Objective Lens Set
With two concave surfaces, Biconcave Lenses have negative focal length, causing collimated incident light to diverge. and they are ideal for expanding the focal length of an optical system. Bena’s biconcave lenses are offered with various materials, including UV Fused silica, ZnSe, Silicon, Ge, CaF2, MgF2, N-SF10, N-BK7 etc. Bena is specialized in providing customized biconcave lenses with large diameter (up to 700mm) and high precision (RMS ≤ λ/100 @ 632.8nm).
| Technical Specifications for Customized Biconcave Lenses | |
| Customization | Build-to-print |
| Material | UV Fused silica, N-BK7, ZnSe, Silicon, Ge, CaF2, MgF2, N-SF10, BaK2, ZF1 |
| Diameter | 10~700mm |
| Diameter tolerance | 0/-0.01 |
| Surface Quality | 20/10 |
| Surface Accuracy | RMS≤λ/100@ 632.8nm |
| Coating | As required |
| Edge | Protective Bevel As required |
| Surface Roughness | Ra ≤ 1nm |
Product Categories : Optical Lenses > Biconcave Lenses
Founded in 2014, Bena was co-founded by several experienced engineers who have more than 10 years of optical design, process, production and test. We provide customization service for high precision (rms = 1/100λ, λ=632.8nm), large diameter plane mirror (>500mm) and aspherical lens, as well as professional spherical lens (such as optical domes with diameter 280mm), involving different materials including K9, Silicon, Sapphire, SiC, glass ceramics, fused silica, and other various optical glasses, and we can also deal with the nickel-phosphorus alloy surface on different substrates.
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