111-1522E 50.8 mm Dia. x 200 mm FL; Uncoated; Double-Convex Lens
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- EKSMA Optics
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 200 mm
- R1
- 189.3 mm
- R2
- -189.3 mm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4760718797567198
- λ
- 355 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
111-1522E 50.8 mm Dia. x 200 mm FL; Uncoated; Double-Convex Lens
The 111-1522E is a double-convex lens, also known as a biconvex lens, sourced from EKSMA Optics. This lens boasts a diameter of 50.8 mm and an effective focal length (EFL) of 200 mm, making it suitable for a wide range of optical applications.
The lens is uncoated, which means it does not have any additional layers to protect it from environmental factors or to enhance its optical properties. This can be advantageous in certain applications where the natural transmission of the lens material is desired, or where additional coatings might introduce unwanted reflections or interferences.
The geometry of the lens is defined by its base shape, which is circular, and its radii of curvature. The first radius of curvature (r1) is 189.3 mm, while the second radius of curvature (r2) is -189.3 mm. These radii, combined with the lens's thickness at the edge (3.6 mm) and center (7 mm), contribute to the lens's overall optical performance.
The lens is made from UVFS MAL-1965, a material specifically designed for use in the ultraviolet (UV) spectrum at a wavelength of 355 nm. This makes the lens particularly suitable for UV-based applications.
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