G313205322 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-20mm 450-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 22.4 mm
- EFL
- -20 mm
- R1
- -20.83 mm
- R2
- 20.83 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167817367777034
- λ
- 588 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
G313205322 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-20mm 450-700nm
This is a G313205322 Double-Concave Lens, a high-quality optical component sourced from Qioptiq Photonics. The lens has a base shape of a circle and is designed for use in the 450-700nm wavelength range, making it suitable for a wide range of optical applications.
The lens is made from N-BK7, a popular optical glass known for its excellent optical properties. It has a diameter of 22.4mm and a center thickness of 1.5mm. The lens's effective focal length (EFL) is -20mm, indicating its double-concave design. The first radius of curvature (R1) is -20.833mm, and the second radius of curvature (R2) is 20.833mm, both of which contribute to the lens's double-concave shape.
The lens features a broadband anti-reflection coating on both the front and back surfaces. This coating, identified as 'qio bbar arb2visnbk7', is designed to reduce surface reflections and increase transmission in the visible spectrum.
More Lens
