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67-999 25mm Dia. x -25 FL; NIR II Coated; Plano-Concave Lens 750-1550nm

67-999 25mm Dia. x -25 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
25 mm
EFL
-25 mm
BFL
-26.96 mm
R1
-19.62 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

67-999 25mm Dia. x -25 FL; NIR II Coated; Plano-Concave Lens 750-1550nm

The 67-999 is a 25mm diameter Plano-Concave Lens, boasting a focal length of -25 and a central thickness of 3.5. This lens, sourced from Edmund Optics, is designed for use within the near-infrared spectrum, specifically between 750 and 1550nm.

The lens is constructed from n-sf11 Schott, a material known for its excellent optical properties, particularly within the infrared region. The lens features a spherical shape, with a radius of curvature of -19.62 on the front surface and a plano surface on the rear. The lens has a thickness of 7.41mm at the edge, providing robustness and durability.

The 67-999 is coated with Edmund Optics' standard NIR-II coating on both the front and back surfaces. This coating is specifically designed to enhance performance within the near-infrared region, ensuring optimal transmission and minimal reflection. The coating status is currently in stock, indicating immediate availability for your optical needs.

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