85-879 12.0mm Dia. x -100 FL; Uncoated; UV Plano-Concave Lens
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- -100 mm
- BFL
- -101.37 mm
- R1
- -45.85 mm
Material
- Name
- Fused Silica
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.458462342053241
- λ
- 587.6 nm
- B1
- 0.6961663
- C1
- 0.00467914825849 μm2
- B2
- 0.4079426
- C2
- 0.013512063073959999 μm2
- B3
- 0.8974794
- C3
- 97.934002537921 μm2
85-879 12.0mm Dia. x -100 FL; Uncoated; UV Plano-Concave Lens
The 85-879 is a 12.0mm diameter Plano-Concave lens with a focal length of -100mm, sourced from Edmund Optics. This lens is uncoated and designed for use with UV light, making it suitable for applications in the ultraviolet spectrum.
The lens features a base shape of circle, with a thickness of 2.36mm at the edge and 2.0mm at the center. The inner and outer radii are both 0mm, indicating a uniform curvature. The back focal length (BFL) is -101.37mm, and the effective focal length (EFL) is -100mm. The radius of curvature (R1) is -45.85mm.
The lens is made from fused silica, a material with the material ID 1965. This material is known for its high transparency in the UV range, making it an ideal choice for UV applications. The lens is designed to work with a wavelength of 587.6nm.
Please note that the lens is uncoated. This means that it does not have any additional layers to protect it from environmental factors or to enhance its optical properties. Uncoated lenses can be more susceptible to damage and may not perform as well in certain conditions, but they can be a cost-effective choice for applications where these factors are not a concern.
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