22-935 15mm Dia. N-SF6 Precision NIR Aspheric Lens; EFL=11.25mm; NA=0.67 Laser V-Coat 1550nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 15 mm
- EFL
- 11.25 mm
- BFL
- 7.88 mm
- R1
- 8.58 mm
- R2
Material
- Name
- N-SF6
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7627040319398362
- λ
- 1550 nm
- B1
- 1.77931763
- C1
- 0.0133714182 μm2
- B2
- 0.338149866
- C2
- 0.0617533621 μm2
- B3
- 2.08734474
- C3
- 174.01759 μm2
22-935 15mm Dia. N-SF6 Precision NIR Aspheric Lens; EFL=11.25mm; NA=0.67 Laser V-Coat 1550nm
This is the 22-935 model from Edmund Optics, a high-precision NIR (Near-InfraRed) Aspheric Lens designed for use with a wavelength of 1550nm. The lens is made from N-SF6 Schott, a high-quality optical material known for its excellent transmission properties in the NIR spectrum.
The lens features a diameter of 15mm and a numerical aperture (NA) of 0.67, providing a high light-gathering capability and a wide angle of view. The effective focal length (EFL) is 11.25mm, making it suitable for applications that require a moderate focal length.
The lens geometry is also noteworthy. It has an inner radius of 0mm, an outer radius of 0mm, and a thickness at the edge of 1.5mm. The thickness at the center is 5mm, and the lens has an aspheric shape with a conic constant of -1.009. This shape helps to correct spherical aberration, a common issue in traditional spherical lenses.
The lens is coated with Edmund Optics' Laser V-Coat 1550, a broadband anti-reflection coating designed for use with 1550nm lasers. This coating reduces surface reflections, improving transmission and enhancing the overall performance of the lens.
According to the vendor, this item is currently in stock, and the web link provided leads to its product page on the Edmund Optics website.
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