23-021 50mm Dia. N-SF6 Precision Aspheric Lens; EFL=50mm; NA=0.5 VIS-EXT Plus 350-700nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- 50 mm
- BFL
- 42.77 mm
- R1
- 40.26 mm
- R2
Material
- Name
- N-SF6
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.8051741184501493
- λ
- 587.6 nm
- B1
- 1.77931763
- C1
- 0.0133714182 μm2
- B2
- 0.338149866
- C2
- 0.0617533621 μm2
- B3
- 2.08734474
- C3
- 174.01759 μm2
23-021 50mm Dia. N-SF6 Precision Aspheric Lens; EFL=50mm; NA=0.5 VIS-EXT Plus 350-700nm
The 23-021 is a high-precision aspheric lens offered by Edmund Optics, boasting a 50mm diameter and a numerical aperture (NA) of 0.5. This lens is designed for use within the visible light spectrum, specifically between 350 and 700nm.
The lens is constructed from N-SF6 Schott glass, a material known for its excellent optical properties and durability. The aspheric design of the lens helps to reduce spherical aberration, a common issue in traditional lenses, resulting in improved image quality and resolution.
The lens features an effective focal length (EFL) of 50mm, making it suitable for a wide range of optical applications. The inner and outer radii of the lens are 0mm, indicating a uniform curvature. The lens has a thickness of 5.08mm at the edge and 13.06mm at the center.
The 23-021 lens is coated with Edmund Optics' VIS-EXT coating, which is designed to enhance transmission within the specified wavelength range. This coating is applied to both the front and back surfaces of the lens, ensuring optimal performance and longevity.
