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G311339400 31.5 mm Dia. N-BK7 Double-Convex Lens; EFL=40mm

G311339400 31.5 mm Dia. N-BK7 Double-Convex Lens; EFL=40mm

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

Properties

Shape
Circular
Diameter
31.5 mm
EFL
40 mm
R1
41.87 mm
R2
-41.87 mm

Material

Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.5167984379050088
λ
587.6 nm
B1
1.03961212
C1
0.00600069867 μm2
B2
0.231792344
C2
0.0200179144 μm2
B3
1.01046945
C3
103.560653 μm2

G311339400 31.5 mm Dia. N-BK7 Double-Convex Lens; EFL=40mm

This is a G311339400 31.5 mm diameter N-BK7 double-convex lens, with a focal length (EFL) of 40mm. The lens is sourced from Qioptiq Photonics, a reputable vendor in the field of precision optics.

The lens is of the spherical type, specifically a convex-convex lens, and has a base shape of a circle. The geometry of the lens includes a diameter of 31.5mm, a thickness at the edge of 2.1mm, and a thickness at the center of 8.3mm. The inner and outer radii are both zero, and the radii of curvature are 41.867mm for the first surface and -41.867mm for the second surface.

The lens is made of N-BK7, a type of glass commonly used in optical applications due to its excellent optical properties. The glass is Schott branded, ensuring high quality and consistency.

The lens is designed to operate at a wavelength of 587.6nm. It comes with a coating on both the front and back surfaces, specifically a qio silver ragv 45 coating. This coating enhances the lens' performance by reducing reflection and increasing transmission.

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