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N-BK7 Bi-Convex Lenses AR Coating: 400 - 700 nm
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Basic Info
| Centration | ≤3 arcmin | Design Wavelength | 587.6 nm | Diameter Tolerance | +0.0 mm / -0.1 mm |
|---|---|---|---|---|---|
| Focal Length Tolerance | ±2% | Material | N-BK7 | Surface Irregularity | λ/4 |
| Surface Quality | 40-20 | ||||
Product Description
A-Coated Bi-Convex Lenses are fabricated from N-BK7 and feature an antireflection coating for the 400 - 700 nm range on both surfaces. N-BK7 is probably the most common optical glass used for high quality optical components. It is typically chosen whenever the additional benefits of UV fused silica (i.e., good transmission further into the UV and a lower coefficient of thermal expansion) are not necessary.
Bi-convex lenses are popular for many finite imaging applications. This type of lens is best suited for use in situations where the object and image are on opposite sides of the lens and the ratio of the image and object distances (conjugate ratio) is between 0.2 and 5.
AR Coated for the 350 - 700 nm Range
Focal Lengths Available from 2.0 mm to 1.0 m
Well Suited for Many Finite Imaging Applications
Offers Excellent Transmittance Throughout the Visible and Near Infrared
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Changchun Sairuioptics Technology Co., Lt