111-1238E 25.4 mm Dia. x 400 mm FL; Uncoated; Double-Convex Lens
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- EKSMA Optics
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 400 mm
- R1
- 380.4 mm
- R2
- -380.4 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
111-1238E 25.4 mm Dia. x 400 mm FL; Uncoated; Double-Convex Lens
The 111-1238E is a spherical lens with a base shape of a circle, designed and manufactured by EKSMA Optics. This lens is a double-convex type, meaning it has two convex surfaces. The lens is uncoated, offering a straightforward and cost-effective solution for various applications.
The lens has a diameter of 25.4 mm and a thickness at the edge of 2.6 mm, while the center thickness measures 3 mm. The effective focal length (EFL) of this lens is 400 mm, making it suitable for applications requiring a longer focal length. The first radius of curvature (R1) is 380.4 mm, and the second radius of curvature (R2) is -380.4 mm, which indicates the lens's double-convex nature.
The lens is made of UV-FS material with the material ID "uvfs mal- 1965" and is optimized for a wavelength of 355 nm. This material selection ensures the lens's durability and performance in ultraviolet applications.
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