G311338329 22.4 mm Dia. N-BK7 Double-Convex Lens; EFL=20mm 1064nm
- 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
G311338329 22.4 mm Dia. N-BK7 Double-Convex Lens; EFL=20mm 1064nm
This is a G311338329 lens, a high-quality optical component manufactured by Qioptiq Photonics. It is a double-convex lens, featuring a base shape of a circle, with a diameter of 22.4 mm. The lens has a center thickness of 8.8 mm and an edge thickness of 1.6 mm, providing a robust structure for various applications.
The lens has an effective focal length (EFL) of 20 mm, making it suitable for applications that require a moderate level of magnification. The double-convex design, with radii of curvature of 19.248 mm for both surfaces, ensures efficient light gathering and focusing.
The lens is made of N-BK7, a popular optical glass from Schott, known for its excellent optical properties and chemical durability. This material is particularly suitable for applications in the near-infrared region, as demonstrated by its wavelength of 1064 nm.
The lens features a broadband anti-reflection coating, specifically the Qio HP Nbar ARHS-YAG coating, on both the front and back surfaces. This coating reduces surface reflections, enhancing the lens's transmission and overall performance.
