22-993 15mm Dia. N-SF6 Precision Aspheric Lens; EFL=18.75mm; NA=0.4 NIR-Plus 600-1050nm
- Type
- Lens
- Subtype
- Aspheric Lens
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 15 mm
- EFL
- 18.75 mm
- BFL
- 14.32 mm
- R1
- 15.1 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
22-993 15mm Dia. N-SF6 Precision Aspheric Lens; EFL=18.75mm; NA=0.4 NIR-Plus 600-1050nm
The 22-993 is a high-precision aspheric lens, 15mm in diameter, manufactured by Edmund Optics. This lens is designed for use in the near-infrared spectrum, specifically for wavelengths between 600 and 1050nm.
The lens boasts an effective focal length (EFL) of 18.75mm, making it suitable for a variety of optical applications. It has a numerical aperture (NA) of 0.4, which is a measure of the lens' ability to gather light and resolve fine details. A higher NA allows for greater light-gathering capabilities and improved resolution.
The lens is made from N-SF6 Schott glass, a material known for its excellent optical properties and durability. The lens features a high-quality NIR-Plus coating on both the front and back surfaces, which enhances its performance in the near-infrared spectrum. This coating reduces surface reflections, increases transmission, and protects the lens from environmental hazards.
The geometry of the lens is carefully designed to optimize its performance. It has an inner radius of 0mm and an outer radius of 0mm. The lens has a thickness of 6.1mm at the edge and 8mm at the center. The front surface of the lens has a radius of curvature (R1) of 15.097mm, while the back surface (R2) is flat. The back focal length (BFL) of the lens is 14.32mm.
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