69-670 50mm Dia. x 50mm FL; Coated; Ge Plano-Convex Lens BBAR 8-12µm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 50 mm
- EFL
- 50 mm
- BFL
- 48.76 mm
- R1
- 150.21 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
69-670 50mm Dia. x 50mm FL; Coated; Ge Plano-Convex Lens BBAR 8-12µm
The 69-670 is a 50mm diameter, 50mm focal length plano-convex lens, designed for use in the 8-12µm wavelength range. This lens is sourced from Edmund Optics, a leading provider of optical components.
The lens is made from Germanium Burnett, a material known for its excellent transmission properties in the mid-infrared region. The lens has a clear aperture, with no inner or outer radius specified, indicating a uniform, unobstructed surface.
The geometry of the lens is characterized by a 2.9mm edge thickness and a 5mm center thickness. The front surface has a radius of curvature of 150.21mm, while the back surface is flat. The effective focal length (EFL) is 50mm, and the back focal length (BFL) is 48.76mm.
The lens is coated with Edmund Optics' ARC ED Coating for Germanium 8-12µm, a broadband anti-reflection coating that reduces surface reflections and improves transmission. The coating is applied to both the front and back surfaces of the lens.
This lens is suitable for a wide range of applications, including infrared spectroscopy, thermal imaging, and other mid-infrared optical systems. It is available for purchase directly from Edmund Optics, and the current stock status indicates that it is in stock.
