G313373322 12.7 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
- 12.7 mm
- EFL
- -20 mm
- R1
- -20.98 mm
- R2
- 20.98 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
G313373322 12.7 mm Dia. N-BK7 Double-Concave Lens; EFL=-20mm 450-700nm
This is a G313373322 12.7 mm diameter N-BK7 double-concave lens, specifically designed for use in the visible light spectrum, with a wavelength of 588nm. The lens is sourced from Qioptiq Photonics, a renowned vendor in the field of precision optics.
The lens is of the spherical type, featuring a base shape that is circular. It has a center thickness of 1.5mm and an effective focal length (EFL) of -20mm, making it a concave-concave lens. The first radius of curvature (R1) is -20.983mm, while the second radius of curvature (R2) is 20.983mm. The lens does not have an inner or outer radius.
The lens is made from N-BK7 Schott, a popular material in optical applications due to its excellent optical properties. It is coated on both the front and back with Qio Bbar Arb2visnbk7, a coating that enhances its performance in the visible light spectrum.
The lens is currently in stock and available for purchase. For more detailed information, please refer to the vendor's website at https://www.qioptiq-shop.com/en/Precision-Optics/Singlets/Symmetric-Concave-Lenses/Symmetric-concave-lenses-unmounted-N-BK7.html.