SLB-15-70NIR2 15.0 mm Dia. x -70.0 mm FL; Coated; Plano-Concave Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 15 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-15-70NIR2 15.0 mm Dia. x -70.0 mm FL; Coated; Plano-Concave Lens 750-1550nm
The SLB-15-70NIR2 is a Plano-Concave Spherical Lens, 15.0 mm in diameter and featuring a focal length of -70.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is made of n-bk7 schott, a high-quality material known for its excellent optical properties.
The lens's geometry is meticulously designed, with a thickness edge of 2.8 mm and a thickness center of 2 mm. The lens's effective focal length (EFL) is -70 mm, and its back focal length (BFL) is -71.3 mm. The inner and outer radii are 0 mm, indicating a uniform curvature.
The SLB-15-70NIR2 is coated with Opt IR2 on both the front and back surfaces, enhancing its performance in the 750-1550nm wavelength range. This coating ensures optimal transmission and reduces reflection, making it suitable for various applications in the near-infrared spectrum.