G311357331 31.5 mm Dia. N-BK7 Double-Convex Lens; EFL=70mm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 31.5 mm
- EFL
- 70 mm
- R1
- 72.86 mm
- R2
- -72.86 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
G311357331 31.5 mm Dia. N-BK7 Double-Convex Lens; EFL=70mm
This is a G311357331 31.5 mm diameter N-BK7 double-convex lens, with a focal length (EFL) of 70mm, sourced from Qioptiq Photonics. The lens is a spherical design, featuring a base shape of a circle, and is unmounted.
The lens has a diameter of 31.5mm, with a center thickness of 5.5mm and an edge thickness of 2.1mm. The front and back radii of the lens are 72.862mm and -72.862mm respectively, indicating a double-convex design. The lens does not have an inner or outer radius.
The lens is made of N-BK7, a type of glass commonly used in optical applications due to its excellent optical properties. The lens is designed for use at a wavelength of 587.6nm.
The lens is coated with Qio AL RALVIS AOI 45 on both the front and back surfaces. This coating is designed to enhance the lens's performance in specific applications, providing anti-reflection properties that reduce unwanted reflections and increase transmission.
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