SLB-25-40NIR1 25.0 mm Dia. x -40.0 mm FL; Coated; Plano-Concave Lens 633-1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -40 mm
- BFL
- -41.3 mm
- R1
- -20.76 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-25-40NIR1 25.0 mm Dia. x -40.0 mm FL; Coated; Plano-Concave Lens 633-1064nm
The SLB-25-40NIR1 is a Plano-Concave Spherical Lens, sourced from the reputable vendor OptoSigma. This lens boasts a diameter of 25.0 mm and a focal length of -40.0 mm, making it ideal for a wide range of optical applications.
The lens is crafted from n-bk7 schott, a high-quality material known for its excellent optical properties. The base shape of the lens is circular, and it features a planar front surface and a concave rear surface. The edge thickness of the lens is 6.2 mm, while the center thickness is 2 mm, providing a robust and durable structure.
The lens is coated with opt ir1 on both the front and back surfaces, enhancing its performance in the wavelength range of 633-1064nm. This coating ensures high transmission and low reflection, making the lens suitable for use in laser applications and other scenarios where efficient light transmission is crucial.
The effective focal length (EFL) of the lens is -40.3 mm, and the back focal length (BFL) is -41.3 mm. The inner and outer radii of the lens are 0 mm, indicating a uniform curvature.