69-660 50mm Dia. x 100mm FL; Coated; Ge Plano-Convex Lens BBAR 3-5µm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- 100 mm
- BFL
- 99 mm
- R1
- 300.39 mm
Material
- Name
- Germanium
- Dispersion Equation
- Sellmeier
- n (λ)
- 4.00355628065046
- λ
- 10600 nm
- B1
- 0.4886331
- C1
- 1.393959 μm2
- B2
- 14.5142535
- C2
- 0.1626427 μm2
- B3
- 0.0091224
- C3
- 752.19 μm2
69-660 50mm Dia. x 100mm FL; Coated; Ge Plano-Convex Lens BBAR 3-5µm
The 69-660 is a 50mm diameter, 100mm focal length plano-convex lens, sourced from Edmund Optics. This lens is made of Germanium burnett, a material well-known for its excellent transmission properties in the infrared spectrum, specifically at 10600nm. The lens's geometry includes a 2.61mm edge thickness and a 4mm center thickness, with a 300.39mm radius of curvature on the convex side.
The lens features a broadband anti-reflection (BBAR) coating on both the front and back surfaces, using the EDM ARCEDGERMANIUM35 coating. This coating enhances the lens's performance by reducing surface reflections, thereby increasing transmission and minimizing dispersion. The coating is designed to operate within the 3-5µm wavelength range, making it suitable for various infrared applications.
This lens is available for purchase directly from the Edmund Optics website, and the link provided indicates that it is currently in stock. With its high-quality materials, precise geometry, and advanced coatings, the 69-660 is an excellent choice for users seeking a reliable and efficient plano-convex lens for their infrared optical systems.
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