111-0418E 38.1 mm Dia. x 200 mm FL; Uncoated; Double-Convex Lens
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- EKSMA Optics
Properties
- Shape
- Circular
- Diameter
- 38.1 mm
- EFL
- 200 mm
- R1
- 206.6 mm
- R2
- -206.6 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5187257728940171
- λ
- 546 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
111-0418E 38.1 mm Dia. x 200 mm FL; Uncoated; Double-Convex Lens
This is a 38.1 mm diameter, double-convex lens offered by EKSMA Optics. The lens has a focal length of 200 mm and is made of BK7 Schott glass, a popular choice for its excellent optical properties and high damage threshold. The lens is uncoated, which means it does not have any additional layers to enhance its optical performance or protect it from environmental factors.
The lens's geometry is characterized by its edge thickness of 3.2 mm and center thickness of 5 mm. The radii of curvature for the first and second surfaces are 206.6 mm and -206.6 mm, respectively. The lens's design is spherical, which is a common choice for its simplicity and versatility. However, it's important to note that spherical lenses can introduce spherical aberration, especially in high-power applications.
The lens is designed to operate at a wavelength of 546 nm. This wavelength falls within the visible spectrum, making this lens suitable for applications in the visible range. However, its performance at other wavelengths may vary.
