G311338331 22.4 mm Dia. N-BK7 Double-Convex Lens; EFL=20mm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 22.4 mm
- EFL
- 20 mm
- R1
- 19.25 mm
- R2
- -19.25 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
G311338331 22.4 mm Dia. N-BK7 Double-Convex Lens; EFL=20mm
This is the G311338331 model from Qioptiq Photonics, a 22.4 mm diameter N-BK7 double-convex lens with an effective focal length (EFL) of 20mm. The lens is sourced from Qioptiq Photonics, a renowned vendor in the field of precision optics.
The lens is a spherical design, featuring a base shape of a circle. It has a thickness of 1.6mm at the edge and 8.8mm at the center. The first radius of curvature (r1) is 19.248mm, while the second radius of curvature (r2) is -19.248mm, indicating a double-convex structure. The inner and outer radii are both 0mm.
The lens is made of N-BK7, a popular glass type in the optical industry due to its excellent optical properties. It is designed to operate at a wavelength of 587.6nm. The lens comes with a coating on both the front and back surfaces, specifically Qio AR Al RALVIS AOI 45, which is intended to reduce reflection and improve transmission.
This lens is currently in stock and available for purchase. For more information, you can refer to the vendor's website through the provided weblink.