87-963 25 mm Dia. Germanium Positive Meniscus Lens; EFL=35mm BBAR 3-5µm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 35 mm
- BFL
- 33.29 mm
- R1
- 38.43 mm
- R2
- 57.61 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
87-963 25 mm Dia. Germanium Positive Meniscus Lens; EFL=35mm BBAR 3-5µm
This is a 25 mm diameter Germanium positive meniscus lens, featuring an effective focal length (EFL) of 35mm and broadband anti-reflection (BBAR) coating for a wavelength of 10600nm with a 3-5µm bandwidth. The lens is sourced from Edmund Optics, a reputable vendor in the optical industry.
The lens is designed with a convex-concave geometry, making it a spherical lens with a base shape of a circle. The edge thickness of the lens is 1.6mm, while the center thickness is 2.5mm. The front and back surfaces of the lens are coated with edm arcedgermanium35, providing excellent anti-reflection properties.
The inner and outer radii of the lens are 0, indicating a symmetrical design. The back focal length (BFL) of the lens is 33.29mm. The first radius of curvature (r1) is 38.43mm, and the second radius of curvature (r2) is 57.61mm.
This lens is made of germanium burnett, a high-quality material known for its excellent optical properties. The lens is currently in stock, according to the vendor's website. For more detailed information, please refer to the vendor's website using the provided weblink.
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