SLB-25.4B-80NIR1 25.4 mm Dia. x -79.7 mm FL; Coated; Double-Concave Lens 633-1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -79.7 mm
- BFL
- -80.4 mm
- R1
- -83.04 mm
- R2
- 83.04 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-25.4B-80NIR1 25.4 mm Dia. x -79.7 mm FL; Coated; Double-Concave Lens 633-1064nm
The SLB-25.4B-80NIR1 is a high-quality, double-concave lens offered by OptoSigma. This lens, designed for use within the wavelength range of 633-1064nm, is constructed from n-bk7 schott material and features a base shape of a circle.
The lens has a diameter of 25.4mm and a thickness at the edge of 4mm, while the center thickness is 2mm. The effective focal length (EFL) is -79.7mm, and the radii of curvature for the first and second surfaces are -83.04mm and 83.04mm, respectively. The back focal length (BFL) is -80.4mm.
The lens comes with a coating of opt ir1 on both the front and back surfaces, providing enhanced performance within its specified wavelength range. This lens is an excellent choice for applications that require a double-concave lens with specific curvature and high transmission within the near-infrared spectrum.
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