SLB-25.4-70N 25.4 mm Dia. x -70.0 mm FL; Plano-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -70 mm
- BFL
- -71.3 mm
- R1
- -36.33 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-25.4-70N 25.4 mm Dia. x -70.0 mm FL; Plano-Concave Lens Uncoated
The SLB-25.4-70N is a Plano-Concave Lens, part of the Spherical Lens category, sourced from OptoSigma. This lens is uncoated and features a base shape of Circular. The lens has a diameter of 25.4 mm and a thickness edge of 4.3 mm, with a center thickness of 2 mm. The effective focal length (EFL) of this lens is -70 mm, making it a negative or diverging lens.
The curvature of this lens is defined by a radius (R1) of -36.33 mm, and the back focal length (BFL) is -71.3 mm. The lens does not have an inner or outer radius, indicating it is a simple lens without additional curvatures.
The lens is made of n-bk7 schott material, a common choice for optical elements due to its excellent optical properties. The lens is designed to operate at a wavelength of 546.1 nm.
The lens is in stock and available for immediate purchase. For more information, please refer to the vendor's website using the provided weblink.
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