69-662 25mm Dia. x 30mm FL; Coated; Ge Plano-Convex Lens BBAR 8-12µm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 30 mm
- BFL
- 29.25 mm
- R1
- 90.12 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
69-662 25mm Dia. x 30mm FL; Coated; Ge Plano-Convex Lens BBAR 8-12µm
The 69-662 is a 25mm diameter, 30mm 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 optical components.
The lens is made from Germanium burnett, a material known for its high refractive index and transparency in the infrared spectrum. The plano-convex geometry, where one side is flat and the other is curved, is ideal for collimating or focusing light. The lens has a 90.12mm radius of curvature on the curved side, resulting in a back focal length of 29.25mm.
The lens features broadband anti-reflection (BBAR) coatings on both the front and back surfaces, specifically the EDM ARCEDGERMANIUM81 coating. This coating is designed to reduce surface reflections and increase transmission in the 8-12µm spectral range. The lens has a center thickness of 3mm and an edge thickness of 2.13mm.
This lens is suitable for a variety of applications, including infrared spectroscopy, thermal imaging, and other infrared-based technologies. It is currently in stock, as indicated by its weblink status. For more information, including pricing and availability, please refer to the provided weblink.