87-999 12.7mm Dia. x 25.4mm FL; Coated; ZnSe Plano-Convex Lens BBAR 8-12µm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 25.4 mm
- R1
- 35.97 mm
Material
- Name
- ZnSe
- Dispersion Equation
- Sellmeier
- n (λ)
- 2.402780893783937
- λ
- 10600 nm
- B1
- 4.45813734
- C1
- 0.040344681 μm2
- B2
- 0.467216334
- C2
- 0.15317139 μm2
- B3
- 2.8956629
- C3
- 2221.822369 μm2
87-999 12.7mm Dia. x 25.4mm FL; Coated; ZnSe Plano-Convex Lens BBAR 8-12µm
The 87-999 is a 12.7mm diameter, 25.4mm focal length plano-convex lens, designed for use in the 8-12µm spectral range. This lens is sourced from Edmund Optics, a leading provider of high-quality optical components.
The lens is made from ZnSe (Zinc Selenide) material, identified as "znse connolly" in the material ID. This material is known for its excellent transmission properties in the infrared region, making it ideal for applications such as thermal imaging and spectroscopy.
The lens features a front and back coating of "edm dbbarl znse 812", which is a broadband anti-reflection (BBAR) coating specifically designed for ZnSe in the 8-12µm range. This coating reduces surface reflections, improving transmission and overall system performance.
The geometry of the lens includes a 2mm edge thickness and a 2.6mm center thickness. The inner and outer radii are both zero, indicating a plano-convex design. The effective focal length (EFL) is 25.4mm.
The lens is available directly from Edmund Optics, and the provided weblink indicates that it is currently in stock. With its high-quality construction, advanced coating, and excellent transmission properties, the 87-999 is a reliable choice for a wide range of infrared optical applications.
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