67-531 20.0mm Dia. x 20.0mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 36 mm
- BFL
- 33.65 mm
- R1
- 18.62 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
67-531 20.0mm Dia. x 20.0mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm
The 67-531 is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens boasts a diameter of 20.0mm and a focal length of 20.0mm, making it a compact and efficient optical component. The lens is made from the high-quality material n-BK7 Schott, ensuring durability and reliability.
The lens features a plano-convex geometry, meaning one side is flat (plano) and the other side is curved (convex). The radius of curvature of the curved surface is 18.62mm, and the back focal length is 33.65mm. The lens has a central thickness of 3.57mm and an edge thickness of 1.25mm, providing a solid structure for various applications.
The 67-531 lens is coated with Edmund Optics' NIR-II standard curve on both the front and back surfaces. This coating enhances the lens's performance in the near-infrared spectrum, specifically between 750nm and 1550nm. The coating ensures high transmission and low reflection, making it ideal for applications such as night vision, thermal imaging, and spectral analysis.
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