SLB-40B-100NIR2 40.0 mm Dia. x -99.7 mm FL; Coated; Double-Concave Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 40 mm
- EFL
- -99.7 mm
- BFL
- -100.3 mm
- R1
- -103.8 mm
- R2
- 103.8 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.518720636186463
- λ
- 546.1 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
SLB-40B-100NIR2 40.0 mm Dia. x -99.7 mm FL; Coated; Double-Concave Lens 750-1550nm
The SLB-40B-100NIR2 is a high-quality, double-concave lens offered by OptoSigma, designed for use within the wavelength range of 750-1550nm. This lens boasts a base shape of a circle with a diameter of 40.0mm and features an effective focal length (EFL) of -99.7mm.
The lens's geometry includes a thickness edge of 5.9mm and a thickness center of 2mm, providing a well-balanced structure for various applications. The radii of curvature for this lens are r1=-103.8mm and r2=103.8mm, while the back focal length (BFL) measures -100.3mm.
The SLB-40B-100NIR2 is made of n-BK7 Schott, a popular material for optical elements due to its excellent homogeneity, low optical dispersion, and high transparency in the visible and near-infrared regions. This lens has been coated with Opt IR2 on both the front and back surfaces, enhancing its performance and durability within its specified wavelength range.
With its robust design and high-performance coating, the SLB-40B-100NIR2 is an ideal choice for applications that require a double-concave lens with specific geometrical and material properties.
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