Hanzhong Hengpu Photoelectric Technology Co.,Ltd
HomeProductsSpherical LensesConcave Lens127mm biconcave glass concave optical lens

127mm biconcave glass concave optical lens

  • $26.3
    10-99
    Piece/Pieces
  • $12.5
    100-999
    Piece/Pieces
  • $4.5
    ≥1000
    Piece/Pieces
Payment Type:
T/T,L/C,Paypal,Western Union
Incoterm:
FOB,CFR,CIF,EXW
Min. Order:
1 Piece/Pieces
Transportation:
Ocean,Land,Air,Express,Others
Port:
Shanghai,Shenzheng,Xiaan
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  • Product Description
Overview
Product Attributes

Place Of OriginChina

Diameter:3-300mm+-0.05mm

Center Thickness Tolerance+-0.05mm

Parallel Error≤3min

Surface Accuracyλ/10@

Effective Caliber90%

Focal Length Tolerance+-1%

Surface Quality40-20 scratch & dig

Working Wavelengthcustomer inquirement

MaterialBK7, FS, UVFS, CaF₂, ZnSe

Product Name:bi concave lens

Supply Ability & Additional Information

TransportationOcean,Land,Air,Express,Others

Supply Ability5000 pieces per month

PortShanghai,Shenzheng,Xiaan

Payment TypeT/T,L/C,Paypal,Western Union

IncotermFOB,CFR,CIF,EXW

Packaging & Delivery
Selling Units:
Piece/Pieces
Picture Example:

1 Product Details


127mm biconcave glass concave Optical Lens


The principle of geometric drawing of biconcave lens imaging is the same as that of Convex Lens. The top of the object is also regarded as two straight lines: one is parallel to the main optical axis, deflects into divergent light after passing through the biconcave lens, and returns the refracted light to the main focus in the opposite direction; The other passes through the optical center point of the lens. The two straight lines intersect at one point, which is the image of the object.


bi concave lens

Material: K9, BK7, FS, UVFS, CaF₂, ZnSe

Diameter:3mm-200mm±0.05mm

Center Thickness Tolerance:±0.05mm

Lens Alignment Error:≤3min

Surface Accuracy:λ/ 10 @

Surface Quality:40/20. 60/40. 80/60

Effective Caliber: 90%


         Example with BK7 material:These N-BK7 biconcve lenses are available uncoated or with one of five antireflection coatings (-A, -AB, -B, -C, or -D), which reduces the amount of light reflected from each surface of the lens (see the Selection Guide table below for coating option). Since approximately 4% of the incident light is reflected at each surface of an uncoated substrate, the application of an AR coating improves transmission, which is important in low-light applications, and prevents the undesirable effects (e.g., ghost images) associated with multiple reflections. Having optics that are AR coated on both surfaces is particularly desirable for applications utilizing multiple optical elements. Please see the Graphs tab for additional coating information.


N-BK7 bi-Concave Lens Selection Guide
Coating name wavelength band
Uncoated Uncoated
A Coating 350nm-700nm
AB Coating 400nm-1100nm
B Coating 650nm-1050nm
C Coating 1050-1700nm
D Coating 1650nm-3000nm

  

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Other series products:

  Concave lens    Achromatic Lens   Ball Lens  Silicon Window Zinc Selenide Window Wedge Optical Window



Product Categories : Spherical Lenses > Concave Lens

Packing Details
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FAQ
Q1: Are Your products at the lowest price?
A1: Ex-factory price, the same quality, our price is much cheaper than other suppliers.

Q2: Are you factory?
A2: Yes, welcome to visit our factory or exhibition, our factory is ISO9001:2008 and SGS approved.

Q3: Do all products have a warranty?
A3: Yes, all products at least 12 months warranty.

Q4: What is the shipping method?
A4: We accept DHL,UPS,TNT,FEDEX,EMS and other logistics.

Q5: What is the Payment terms?
A5: We accept L/C,D/P,D/A,T/T,Western Union,Money Gram and Trade Assurance on Alibaba.

Q6: Could we design our own packing?
A6: Yes, the default is regular packing, we can customize packaging for clients.

Q7: If the products are broken or damaged, how do you handle it?
A7: Just take pictures to us and we are glad to send another product to you for free.

Q8: Do you accept OEM design of the product?
A8: Yes, we accept any OEM design, please send your requirements to us, we will make it to be real.
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