G311315525 22.4 mm Dia. N-BK7 Double-Convex Lens; EFL=50mm 725-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 22.4 mm
- EFL
- 50 mm
- R1
- 52.33 mm
- R2
- -52.33 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
G311315525 22.4 mm Dia. N-BK7 Double-Convex Lens; EFL=50mm 725-1050nm
The G311315525 is a high-quality double-convex lens, boasting a 22.4 mm diameter and a 50mm effective focal length (EFL). This lens is fabricated from N-BK7, a popular glass type known for its excellent optical properties, particularly its high refractive index and low dispersion. The lens is sourced from Qioptiq Photonics, a renowned vendor in the field of precision optics.
The lens features a base shape of a circle, with a thickness of 2.1mm at the edge and 4.5mm at the center. The radii of curvature for the first and second surfaces are 52.33mm and -52.33mm respectively, indicating a symmetric convex-convex geometry. The lens is unmounted, providing flexibility for integration into various optical systems.
The lens is coated with Qio Bbar Arb2nirnbk7 on both the front and back surfaces, enhancing its performance across the wavelength range of 725-1050nm. This coating reduces reflection and increases transmission, making the lens suitable for use in high-power laser applications.
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