SLB-25B-40NM 25.0 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -39.7 mm
- BFL
- -40.3 mm
- R1
- -41.52 mm
- R2
- 41.52 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-25B-40NM 25.0 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 400-700nm
The SLB-25B-40NM is a high-quality double-concave lens offered by OptoSigma, a leading vendor in the optical industry. This lens, designed for use within the wavelength range of 400-700nm, is made of the renowned material n-bk7 schott, which guarantees excellent optical performance.
The lens boasts a diameter of 25.0 mm and a center thickness of 2.0 mm, while the edge thickness measures 5.9 mm. The effective focal length (EFL) is -39.7 mm, and the back focal length (BFL) is -40.3 mm. The radii of curvature for the first and second surfaces are -41.52 mm and 41.52 mm, respectively.
The SLB-25B-40NM features a coating of opt m on both the front and back surfaces, enhancing its overall optical efficiency and durability. This lens is ideal for applications that require a spherical shape and concave-concave geometry, making it a versatile component for a wide range of optical systems.
For more information, including pricing and availability, please refer to the vendor's website using the provided weblink.
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