67-979 3.0mm Dia. x -6 FL; NIR II Coated; Plano-Concave Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 3 mm
- EFL
- -6 mm
- BFL
- -6.56 mm
- R1
- -4.71 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
67-979 3.0mm Dia. x -6 FL; NIR II Coated; Plano-Concave Lens 750-1550nm
The 67-979 is a 3.0mm diameter Plano-Concave Lens with a focal length of -6, sourced from Edmund Optics. This lens is designed for use in the near-infrared (NIR) spectrum, specifically between 750 and 1550nm, making it suitable for a wide range of applications in this region.
The lens is made from n-sf11 Schott glass, a material known for its excellent optical properties in the NIR spectrum. It features a plano-concave geometry, with a center thickness of 1.0mm and an edge thickness of 1.17mm. The inner and outer radii are both 0, indicating a simple, straightforward design.
The 67-979 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 spectrum, reducing reflectance and improving transmission. The coating curve is not specified, but it is assumed to be tailored to the NIR spectrum based on the lens' designation.
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