SLB-15B-40NM 15.0 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
- 15 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-15B-40NM 15.0 mm Dia. x -39.7 mm FL; Coated; Double-Concave Lens 400-700nm
The SLB-15B-40NM is a high-quality double-concave lens, 15.0 mm in diameter, designed for use within the wavelength range of 400-700nm. This lens is sourced from the reputable vendor, OptoSigma, and is currently in stock with valid web links provided for easy access to additional information.
The lens is made from the material n-bk7 schott, a popular choice due to its excellent optical properties. The base shape is circular, and the lens features a double-concave geometry with a center thickness of 2mm and an edge thickness of 3.4mm. The effective focal length (EFL) is -39.7mm, and the back focal length (BFL) is -40.3mm. The radii of curvature for the first and second surfaces are -41.52mm and 41.52mm, respectively.
The SLB-15B-40NM is coated with opt m on both the front and back surfaces, enhancing its performance within the specified wavelength range. This lens is a spherical type, making it suitable for a wide range of optical applications.
