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22-991 10mm Dia. N-SF6 Precision Aspheric Lens; EFL=7.5mm; NA=0.67 SWIR-Plus 900-1700nm

22-991 10mm Dia. N-SF6 Precision Aspheric Lens; EFL=7.5mm; NA=0.67 SWIR-Plus 900-1700nm

Type
Lens
Subtype
Aspheric Lens
Brand
Edmund Optics
Product webpage
Edmund Optics products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
10 mm
EFL
7.5 mm
BFL
3.35 mm
R1
6.04 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

22-991 10mm Dia. N-SF6 Precision Aspheric Lens; EFL=7.5mm; NA=0.67 SWIR-Plus 900-1700nm

The 22-991 is a high-precision aspheric lens, boasting a 10mm diameter and a numerical aperture (NA) of 0.67. This lens is designed for use in the shortwave infrared (SWIR) spectrum, specifically between 900 and 1700nm.

The lens is crafted from N-SF6 Schott, a material known for its excellent optical properties in the SWIR range. It features an effective focal length (EFL) of 7.5mm, making it suitable for a variety of applications that require a compact, high-performance lens.

The aspheric design of the lens helps to reduce spherical aberration, a common issue in traditional spherical lenses. This results in improved image quality, with sharper focus and increased contrast. The lens also features a high NA, which allows for a larger light-gathering capacity, enhancing its performance in low-light conditions.

The 22-991 is coated with Edmund Optics' SWIR-Plus coating, which is specifically designed for use in the 900-1700nm range. This coating helps to reduce surface reflections, improving transmission and enhancing the overall performance of the lens.

The lens has a center thickness of 7.5mm and an edge thickness of 5.25mm, providing a robust and durable design. The front and back surfaces of the lens are coated with the same SWIR-Plus coating, ensuring optimal performance from both sides.

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