16-273 25mm Dia. N-BK7 NIR Aspheric Lens; EFL=50mm; NA=0.25 VIS Plus 350-700nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 50 mm
- BFL
- 46.03 mm
- R1
- 25.56 mm
- R2
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5111833144579327
- λ
- 780 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
16-273 25mm Dia. N-BK7 NIR Aspheric Lens; EFL=50mm; NA=0.25 VIS Plus 350-700nm
This is a high-quality 16-273 25mm Dia. N-BK7 NIR Aspheric Lens, designed for use in the near-infrared spectrum with a wavelength of 780nm. The lens is sourced from the reputable vendor, Edmund Optics, and is currently in stock.
The lens is specifically designed with an aspheric shape, which provides superior optical performance compared to traditional spherical lenses. This is achieved through the controlled variation of the radius of curvature along the optical axis, which reduces spherical aberration and other optical aberrations. The base shape of the lens is circular, ensuring uniform light distribution and enhancing the overall optical system's performance.
The lens is made from N-BK7 Schott glass, a popular material for optical elements due to its excellent optical properties and chemical resistance. The lens has a diameter of 25mm and a thickness of 2.86mm at the edge, ensuring structural integrity and minimal distortion. The effective focal length (EFL) of the lens is 50mm, making it suitable for a wide range of optical applications.
The lens is coated with Edmund Optics' VIS Plus 350-700nm coating on both the front and back surfaces. This coating enhances the lens's transmission in the visible spectrum (350-700nm), reducing reflection and improving light transmission. The numerical aperture (NA) of the lens is 0.25, which determines the light-gathering ability of the lens and its angular field of view.
