G311378525 18 mm Dia. N-BK7 Double-Convex Lens; EFL=16mm 725-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 18 mm
- EFL
- 16 mm
- R1
- 15.18 mm
- R2
- -15.18 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
G311378525 18 mm Dia. N-BK7 Double-Convex Lens; EFL=16mm 725-1050nm
This is a G311378525 model lens from Qioptiq Photonics, a renowned provider of precision optics. The lens boasts a diameter of 18 mm and is designed with a double-convex geometry, featuring a base shape of a circle. The lens's edge thickness is 1.1 mm, while its center thickness is 7 mm, providing a robust structure for various applications.
The effective focal length (EFL) of this lens is 16 mm, making it suitable for medium-range focus applications. The first radius of curvature (R1) is 15.179 mm, and the second radius of curvature (R2) is -15.179 mm, indicating a symmetric convex-convex design. The lens's inner and outer radii are both 0, suggesting a uniform curvature throughout.
The lens is made of N-BK7, a high-quality glass material from Schott, known for its excellent optical properties. The wavelength for this lens is 587.6 nm, which falls within the visible light spectrum.
The lens is coated with qio bbar arb2nirnbk7 on both the front and back surfaces. This coating enhances the lens's performance by reducing reflection and increasing transmission, making it ideal for use in high-precision optical systems.
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