SLB-30-70NM 30.0 mm Dia. x -70.0 mm FL; Coated; Plano-Concave Lens 400-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 30 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-30-70NM 30.0 mm Dia. x -70.0 mm FL; Coated; Plano-Concave Lens 400-700nm
This is a Plano-Concave Lens, type SLB-30-70NM, sourced from OptoSigma. The lens has a diameter of 30.0 mm and a focal length of -70.0 mm, making it suitable for applications that require a negative focal length. The lens is made of n-bk7 schott material, a popular choice for its high refractive index and low dispersion.
The lens features a plano-concave geometry, meaning one side is flat while the other is curved inward. The curvature of the concave side is defined by a radius of -36.33 mm. The lens has an edge thickness of 5.2 mm and a center thickness of 2 mm, providing structural integrity and minimizing optical aberrations.
The SLB-30-70NM lens is coated with opt m on both the front and back surfaces. This coating enhances the lens's performance in the spectral range of 400-700nm, making it ideal for applications that require high transmittance in the visible spectrum.
The lens is currently in stock and available for immediate purchase. For more information, please refer to the vendor's website provided in the weblinks section.