HomeProductsOptical LensesBiconcave LensesOptical glass biconcave lenses

Optical glass biconcave lenses

  • $15
    ≥10
    Piece/Pieces
Payment Type:
T/T
Incoterm:
FOB,CFR,CIF,EXW,FCA
Min. Order:
10 Piece/Pieces
Transportation:
Air, DHL
Port:
Dalian,Changchun,Beijing
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  • Product Description
Overview
Product Attributes

BrandBena

CustomizedCustomized

Diameter45mm

Surface Quality20/10

MaterialUv Fused Silica

Surface RoughnessRa < 1nm

Surface AccuracyRms ≤ λ/100 @ 632.8nm

Supply Ability & Additional Information

PackagingCarton

Productivity80000000pcs/year

TransportationAir, DHL

Place of OriginChangchun

Supply Ability80000000pcs/year

CertificateISO9001

HS Code90019090

PortDalian,Changchun,Beijing

Payment TypeT/T

IncotermFOB,CFR,CIF,EXW,FCA

Packaging & Delivery
Selling Units:
Piece/Pieces
Package Type:
Carton

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 @ 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

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

Company Overview

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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