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G313215331 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-50mm

G313215331 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-50mm

Type
Lens
Subtype
Spherical Lens (Concave-Concave)
Brand
Qioptiq Photonics
Product webpage
Qioptiq Photonics products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
22.4 mm
EFL
-50 mm
R1
-52.33 mm
R2
52.33 mm

Material

Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.5167817367777034
λ
588 nm
B1
1.03961212
C1
0.00600069867 μm2
B2
0.231792344
C2
0.0200179144 μm2
B3
1.01046945
C3
103.560653 μm2

G313215331 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-50mm

This is a G313215331 model double-concave lens, featuring a 22.4 mm diameter and a center thickness of 1.5 mm. The lens is made of N-BK7, a popular glass type in the optical industry known for its excellent optical properties. The effective focal length (EFL) of this lens is -50mm, making it a concave lens that diverges light.

The lens has two radii of curvature: r1 is -52.33mm, and r2 is 52.33mm. These radii, combined with the lens's material and thickness, contribute to its optical power and performance. The lens's inner and outer radii are both 0, indicating that the lens has a uniform thickness across its diameter.

The lens is coated with Qio AL RALVIS AOI 45 on both the front and back surfaces. This coating enhances the lens's performance by reducing reflection and increasing transmission, which is particularly beneficial at the specified wavelength of 588nm.

This lens is sourced from Qioptiq Photonics, a renowned vendor in the optical industry. According to the vendor's information, the lens is in stock and available for immediate purchase.

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