87-948 25mm Dia. x 75mm FL; Coated; Ge Plano-Convex Lens BBAR 3-12µm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 75 mm
- BFL
- 75.25 mm
- R1
- 225.29 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
87-948 25mm Dia. x 75mm FL; Coated; Ge Plano-Convex Lens BBAR 3-12µm
The 87-948 is a 25mm diameter, 75mm focal length plano-convex lens, designed for use in the 3-12µm 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 infrared spectrum. The front and back surfaces of the lens are coated with EDM ARCEDGERMANIUM31, a broadband anti-reflection coating that reduces surface reflections and improves transmission.
The lens has a spherical shape, with a 225.29mm radius of curvature on the convex side. The center thickness of the lens is 3mm, while the edge thickness is 2.65mm. The back focal length of the lens is 75.25mm, and the effective focal length is 75mm.
This lens is ideal for applications that require a high-quality, infrared-transmitting lens with a long focal length. It is suitable for use in a variety of systems, including thermal imaging systems, spectroscopy, and other infrared-based technologies.
Please note that the lens is designed to be used in a specific wavelength range and with specific coatings. Therefore, it is important to ensure that it is suitable for your specific application before use.