67-940 12mm Dia. x 25mm FL; Laser Grade Plano-Convex Lens Laser V-Coat 266nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- 25 mm
- BFL
- 22.31 mm
- R1
- 11.46 mm
Material
- Name
- Fused Silica
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4996834240856278
- λ
- 266 nm
- B1
- 0.6961663
- C1
- 0.00467914825849 μm2
- B2
- 0.4079426
- C2
- 0.013512063073959999 μm2
- B3
- 0.8974794
- C3
- 97.934002537921 μm2
67-940 12mm Dia. x 25mm FL; Laser Grade Plano-Convex Lens Laser V-Coat 266nm
The 67-940 is a laser grade plano-convex lens, boasting a diameter of 12mm and a focal length of 25mm. This lens is sourced from Edmund Optics, a reputable vendor known for their high-quality optical components. The lens is designed for use with a wavelength of 266nm, making it suitable for a variety of applications in the ultraviolet spectrum.
The lens is made from fused silica, a material with a high damage threshold and excellent transmission properties in the UV range. The front and back surfaces of the lens are coated with Edmund Optics' Laser V-Coat, specifically designed for 266nm. This coating enhances the lens's performance by reducing surface reflections and improving transmission.
The geometry of the lens is carefully crafted to ensure optimal performance. The lens has an outer radius of 0mm and an inner radius of 0mm, focusing all light towards a single point. The thickness at the edge of the lens is 2.22mm, while the thickness at the center is 3.92mm. The effective focal length (EFL) of the lens is 25mm, and the back focal length (BFL) is 22.31mm.