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Place Of Origin: China
Diameter:: 3-300mm+-0.05mm
Center Thickness Tolerance: +-0.05mm
Parallel Error: ≤3min
Surface Accuracy: λ/10@
Effective Caliber: 90%
Focal Length Tolerance: +-1%
Surface Quality: 40-20 scratch & dig
Working Wavelength: customer inquirement
Material: BK7, FS, UVFS, CaF₂, ZnSe
Product Name:: bi concave lens
Packaging: Carton box with inner sponge foam cushion and other safety packaging
Transportation: Ocean,Land,Air,Express,Others
Supply Ability: 5000 pieces per month
Port: Shanghai,Shenzheng,Xiaan
Payment Type: L/C,T/T,Paypal,Western Union
Incoterm: CIF,EXW,FOB,CFR
13.5mm biconcave lens optical glass 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%
We are specialized manufacturers from China, Concave Lens, Biconcave Lens and Optical Concave Lens suppliers/factory, wholesale high-quality products of Concave Lens R & D and manufacturing, we have the perfect after-sales service and technical support. Looking forward to your cooperation!
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.
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.
Product Categories : Spherical Lenses > Concave Lens
Hanzhong Hengpu Photoelectric technology Co., Ltd. Our company has been established for 8 years specialized in the production of optical lenses, various lenses, cylindrical mirrors and other high-precision optical components for projector lenses and camera lenses. , Car lenses, infrared imaging lenses and other fields. And the boss is a technical expert with more than 20 years in this industury. We support OEM, ODM, OBM. and provide the high-quality products while cutting costs, to meet the diverse needs of different customers.
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.