SLB-15B-15N 15.0 mm Dia. x -14.7 mm FL; Double-Concave Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 15 mm
- EFL
- -14.7 mm
- BFL
- -15.3 mm
- R1
- -15.57 mm
- R2
- 15.57 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-15N 15.0 mm Dia. x -14.7 mm FL; Double-Concave Lens Uncoated
The SLB-15B-15N is a high-quality double-concave lens offered by OptoSigma, a leading vendor in the optical industry. This lens, designed with a base shape of a circle, is fabricated from n-BK7 Schott, a popular material known for its excellent optical properties.
The lens boasts a diameter of 15.0 mm and a thickness at the edge of 5.9 mm. The center thickness is 2.0 mm, providing a robust structure while maintaining a sleek profile. The effective focal length (EFL) of this lens is -14.7 mm, making it suitable for applications that require a negative focal length.
The first radius of curvature (R1) is -15.57 mm, and the second radius of curvature (R2) is 15.57 mm, indicating a symmetrical double-concave design. The back focal length (BFL) is -15.3 mm, which is crucial for determining the lens's placement in an optical system.
The lens is uncoated, offering users the flexibility to apply their preferred coating based on their specific application requirements. This lens is designed to work with a wavelength of 546.1 nm, making it suitable for a wide range of applications in the visible light spectrum.