67-985 6mm Dia. x -15 FL; NIR II Coated; Plano-Concave Lens 750-1550nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 6 mm
- EFL
- -15 mm
- BFL
- -16.32 mm
- R1
- -7.75 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
67-985 6mm Dia. x -15 FL; NIR II Coated; Plano-Concave Lens 750-1550nm
The 67-985 is a Plano-Concave Lens with a 6mm diameter, offering a focal length of -15 and boasting a robust NIR II coating. This lens is sourced from Edmund Optics, a trusted vendor known for their high-quality optical components.
The lens is designed with a base shape of a circle, featuring a thickness of 2.49mm at the edge and 2mm at the center. The back focal length measures -16.32mm, while the inner and outer radii are 0mm each, indicating a plano surface. The lens is constructed from N-BK7 Schott, a popular optical glass due to its excellent optical properties and versatility.
The NIR II coating, applied to both the front and back surfaces, enhances the lens' performance in the near-infrared spectrum, specifically between 750nm and 1550nm. This coating is standard from Edmund Optics, ensuring reliable and consistent performance.
This lens is a Spherical Lens, a common type of lens used in various optical systems due to its simple design and manufacturability. The geometry of the lens, including its diameter, thickness, and focal length, makes it suitable for a wide range of applications, particularly in the realm of NIR imaging and sensing.
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