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G314323322 25.4 mm Dia. N-BK7 Plano-Concave Lens; EFL=-200mm 450-700nm

G314323322 25.4 mm Dia. N-BK7 Plano-Concave Lens; EFL=-200mm 450-700nm

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

Properties

Shape
Circular
Diameter
25.4 mm
EFL
-200 mm
R1
-104.41 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

G314323322 25.4 mm Dia. N-BK7 Plano-Concave Lens; EFL=-200mm 450-700nm

This is a Plano-Concave lens, a type of spherical lens, sourced from Qioptiq Photonics. The lens has a base shape of a circle and a diameter of 25.4 mm. The center thickness of the lens is 1.5 mm, and it has an effective focal length (EFL) of -200 mm, making it a negative lens. The radius of curvature for the concave surface is -104.41 mm.

The lens is made of N-BK7, a popular glass type in the optical industry, known for its excellent optical properties. The material has a refractive index that varies with wavelength, making it suitable for a wide range of applications. In this case, the lens is designed to work with a central wavelength of 588 nm.

The lens comes with anti-reflection coatings on both the front and back surfaces. The coating type is qio bbar arb2visnbk7, which is specifically designed to reduce surface reflections and increase transmission in the visible spectrum (450-700 nm). This coating ensures optimal performance and reduces the likelihood of unwanted reflections or ghost images.

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