67-571 30.0mm Dia. x 75.0mm 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
- 30 mm
- EFL
- 40 mm
- BFL
- 37.2 mm
- R1
- 31.39 mm
Material
- Name
- N-SF11
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7847141030246312
- λ
- 587.6 nm
- B1
- 1.73759695
- C1
- 0.013188707 μm2
- B2
- 0.313747346
- C2
- 0.0623068142 μm2
- B3
- 1.89878101
- C3
- 155.23629 μm2
67-571 30.0mm Dia. x 75.0mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm
The 67-571 is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens boasts a diameter of 30.0mm and a focal length of 75.0mm, making it a versatile choice for various optical applications. The lens is made from n-sf11 Schott, a high-index glass with excellent transmittance in the near-infrared (NIR) region.
The lens features a plano-convex geometry, meaning one side is flat (plano), and the other side is curved (convex). The curvature of the convex side is defined by a radius of 31.39mm, and the lens has a central thickness of 5mm and an edge thickness of 1.18mm. The effective focal length (EFL) of the lens is 40mm, and the back focal length (BFL) is 37.2mm.
The 67-571 lens is coated with Edmund Optics' standard NIR-II coating on both the front and back surfaces. This coating is designed to optimize the lens' performance in the NIR II region, specifically between 750nm and 1550nm. The coating enhances the lens' transmittance, reduces surface reflections, and protects the lens from environmental hazards.
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