G311384322 12.7 mm Dia. N-BK7 Double-Convex Lens; EFL=50mm 450-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 50 mm
- R1
- 51.08 mm
- R2
- -51.08 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
G311384322 12.7 mm Dia. N-BK7 Double-Convex Lens; EFL=50mm 450-700nm
This is a G311384322 12.7 mm diameter N-BK7 double-convex lens, specifically designed for use in the visible light spectrum, with an effective focal length (EFL) of 50mm and a wavelength of 587.6nm. 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 diameter of 12.7mm and a thickness at the edge of 2.2mm, while the center thickness measures 3mm. The lens's first radius of curvature (R1) is 51.08mm, and the second radius (R2) is -51.08mm, indicating a double-convex structure. The inner and outer radii are both 0mm.
The lens is made from N-BK7, a popular glass type in the optical industry known for its excellent optical properties. This material is often used in high-precision applications due to its low auto-fluorescence and high damage threshold.
The lens features anti-reflective coatings on both the front and back surfaces. These coatings, specifically Qio Bbar Arb2visnbk7, are designed to reduce surface reflections and increase transmission in the visible light spectrum (450-700nm).