69-653 25mm Dia. x 50mm FL; Coated; Ge Plano-Convex Lens BBAR 3-5µm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 50 mm
- BFL
- 49.25 mm
- R1
- 150.19 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
69-653 25mm Dia. x 50mm FL; Coated; Ge Plano-Convex Lens BBAR 3-5µm
The 69-653 is a 25mm diameter, 50mm focal length plano-convex lens, designed for use in the infrared spectrum with a wavelength of 10600nm. This lens is sourced from Edmund Optics, a reputable vendor known for their high-quality optical components.
The lens is made from Germanium burnett, a material well-suited for infrared applications due to its high refractive index and transparency in the infrared spectrum. The lens features a front and back coating of EDM ARCEDGERMANIUM35, a broadband anti-reflection coating that reduces surface reflections and increases transmission in the 3-5µm range.
The lens has a planar surface on one side and a convex surface on the other, with a center thickness of 3mm and an edge thickness of 2.48mm. The radius of curvature of the convex surface is 150.19mm, and the back focal length is 49.25mm. The lens does not have any inner or outer radii, indicating it is a simple, single-element lens.
According to the vendor's website, this lens is in stock, making it readily available for immediate use. The item data also indicates that the lens comes with a coating, which is confirmed by the presence of the ARCEDGERMANIUM35 coating on both the front and back surfaces.
