39-528 12.7mm Dia. x 50.8mm FL; Uncoated; ZnSe Plano-Convex Lens
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- 50.8 mm
- R1
- 71.26 mm
Material
- Name
- ZnSe
- Dispersion Equation
- Modified Sellmeier
- n (λ)
- 2.4293852609245956
- λ
- 10600 nm
- A
- 4
- B1
- 1.9
- C1
- 0.113 μm2
- B2
- 0
- C2
- 0 μm2
- B3
- 0
- C3
- 0 μm2
39-528 12.7mm Dia. x 50.8mm FL; Uncoated; ZnSe Plano-Convex Lens
The 39-528 is a 12.7mm diameter, 50.8mm focal length plano-convex lens, sourced from Edmund Optics. This lens is made of ZnSe (Zinc Selenide) material, specifically the ZnSe Marple-1964 variant, which is known for its excellent transmission properties in the infrared region.
The lens geometry features a planar surface on one side and a convex surface on the other, with a center thickness of 2mm and an edge thickness of 1.72mm. The inner radius is 0mm, and the outer radius is also 0mm, indicating a symmetrical curvature. The effective focal length (EFL) is 50.8mm, making this lens suitable for applications that require a long focal length.
This lens is uncoated, which means it does not have any anti-reflective coatings. While this may result in higher reflective losses, it also means that the lens is less susceptible to damage from environmental factors.
The lens is designed to work with a wavelength of 10600nm, making it suitable for various infrared applications. It is important to note that the lens is spherical, which may cause some spherical aberration. However, this can be corrected with proper design considerations.
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