22-716 75mm Dia. N-SF5 Precision Aspheric Lens; EFL=60mm; NA=0.63 BBAR 600-1050nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 75 mm
- EFL
- 60 mm
- BFL
- 45.77 mm
- R1
- 40.36 mm
- R2
Material
- Name
- N-SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6727030184452947
- λ
- 587.6 nm
- B1
- 1.52481889
- C1
- 0.011254756 μm2
- B2
- 0.187085527
- C2
- 0.0588995392 μm2
- B3
- 1.42729015
- C3
- 129.141675 μm2
22-716 75mm Dia. N-SF5 Precision Aspheric Lens; EFL=60mm; NA=0.63 BBAR 600-1050nm
This is the 22-716 model from Edmund Optics, a 75mm diameter precision aspheric lens with a N-SF5 material ID. The lens boasts an effective focal length (EFL) of 60mm and a numerical aperture (NA) of 0.63, making it a high-performance optical component. The lens is coated with BBAR 600-1050nm on both the front and back surfaces, ensuring excellent transmission and minimal reflection across the near-infrared spectrum.
The lens geometry is intricately designed with a range of parameters. The inner radius is 0, while the outer radius is also 0, suggesting a symmetrical design. The diameter of the lens is 75mm, and it has a thickness of 4.73mm at the edge and 23.8mm at the center. The back focal length (BFL) is 45.77mm. The lens's conic constant (k1) is -0.877, indicating a slightly hyperbolic shape. The lens does not have a second conic constant (k2) as it is an aspheric lens.
The coating on this lens is a BBAR (Broadband Anti-Reflection) coating, designed to reduce reflection and increase transmission across a broad spectrum, in this case, 600-1050nm. This coating is applied to both the front and back surfaces of the lens, ensuring optimal performance.
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