69-441 12.0mm Dia. x 54.0mm FL; Plano-Convex Lens Laser V-Coat 633nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- 54 mm
- BFL
- 52.02 mm
- R1
- 27.91 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5150823520020043
- λ
- 633 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
69-441 12.0mm Dia. x 54.0mm FL; Plano-Convex Lens Laser V-Coat 633nm
The 69-441 is a Plano-Convex spherical lens, sourced from Edmund Optics, with a diameter of 12.0mm and a focal length of 54.0mm. This lens is designed for use with a wavelength of 633nm and features a laser V-coat on both the front and back surfaces.
The lens is made from n-BK7 Schott glass, a popular material for optical elements due to its excellent optical properties and high Abbe number. The lens has a planar surface on one side and a convex surface on the other, with a center thickness of 3.0mm and an edge thickness of 2.35mm. The inner radius is 0mm, and the outer radius is also 0mm, indicating a symmetrical curvature.
The lens's geometry includes a back focal length of 52.02mm and a radius of curvature of 27.91mm on the convex side. The effective focal length (EFL) is 54.0mm, which is the distance from the lens's principal plane to the focal point.
The laser V-coat on both surfaces of the lens is designed to enhance its performance in laser applications. This coating provides high transmission at the design wavelength and excellent environmental stability.
