69-646 50mm Dia. x 50mm FL; Uncoated; Ge Plano-Convex Lens
- 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
69-646 50mm Dia. x 50mm FL; Uncoated; Ge Plano-Convex Lens
The 69-646 is a 50mm diameter, 50mm focal length plano-convex lens, sourced from Edmund Optics. This lens is made of germanium burnett, a material with a refractive index suitable for infrared applications at a wavelength of 10600nm. The lens has a base shape of a circle, with an edge thickness of 2.9mm and a center thickness of 5mm.
The lens's geometry includes an inner radius of 0mm and an outer radius of 0mm, indicating a uniform curvature. The effective focal length (EFL) is 50mm, and the back focal length (BFL) is 48.76mm. The radius of curvature (R1) is 150.21mm.
This lens does not come with any coating, as indicated in the item data. The absence of a coating may affect the lens's performance in certain applications, particularly those requiring high transmission or resistance to environmental factors. Therefore, users should consider their specific needs when choosing this lens.
