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67-979 3.0mm Dia. x -6 FL; NIR II Coated; Plano-Concave Lens 750-1550nm

67-979 3.0mm Dia. x -6 FL; NIR II Coated; Plano-Concave Lens 750-1550nm

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

Properties

Shape
Circular
Diameter
3 mm
EFL
-6 mm
BFL
-6.56 mm
R1
-4.71 mm

Material

Name
N-SF11
Dispersion Equation
Sellmeier
n (λ)
1.7847141030246312
λ
587.6 nm
B1
1.73759695
C1
0.013188707 μm2
B2
0.313747346
C2
0.0623068142 μm2
B3
1.89878101
C3
155.23629 μm2

67-979 3.0mm Dia. x -6 FL; NIR II Coated; Plano-Concave Lens 750-1550nm

The 67-979 is a 3.0mm diameter Plano-Concave Lens with a focal length of -6, sourced from Edmund Optics. This lens is designed for use in the near-infrared (NIR) spectrum, specifically between 750 and 1550nm, making it suitable for a wide range of applications in this region.

The lens is made from n-sf11 Schott glass, a material known for its excellent optical properties in the NIR spectrum. It features a plano-concave geometry, with a center thickness of 1.0mm and an edge thickness of 1.17mm. The inner and outer radii are both 0, indicating a simple, straightforward design.

The 67-979 is coated with Edmund Optics' standard NIR-II coating on both the front and back surfaces. This coating is designed to optimize the lens' performance in the NIR spectrum, reducing reflectance and improving transmission. The coating curve is not specified, but it is assumed to be tailored to the NIR spectrum based on the lens' designation.

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