67-999 25mm Dia. x -25 FL; NIR II Coated; Plano-Concave Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -25 mm
- BFL
- -26.96 mm
- R1
- -19.62 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
67-999 25mm Dia. x -25 FL; NIR II Coated; Plano-Concave Lens 750-1550nm
The 67-999 is a 25mm diameter Plano-Concave Lens, boasting a focal length of -25 and a central thickness of 3.5. This lens, sourced from Edmund Optics, is designed for use within the near-infrared spectrum, specifically between 750 and 1550nm.
The lens is constructed from n-sf11 Schott, a material known for its excellent optical properties, particularly within the infrared region. The lens features a spherical shape, with a radius of curvature of -19.62 on the front surface and a plano surface on the rear. The lens has a thickness of 7.41mm at the edge, providing robustness and durability.
The 67-999 is coated with Edmund Optics' standard NIR-II coating on both the front and back surfaces. This coating is specifically designed to enhance performance within the near-infrared region, ensuring optimal transmission and minimal reflection. The coating status is currently in stock, indicating immediate availability for your optical needs.
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