66-256 12.0mm Dia. x 18.0mm FL; Plano-Convex Lens Laser V-Coat 405nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- 18 mm
- BFL
- 16.22 mm
- R1
- 12.11 mm
Material
- Name
- N-SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7109191731821858
- λ
- 405 nm
- B1
- 1.52481889
- C1
- 0.011254756 μm2
- B2
- 0.187085527
- C2
- 0.0588995392 μm2
- B3
- 1.42729015
- C3
- 129.141675 μm2
66-256 12.0mm Dia. x 18.0mm FL; Plano-Convex Lens Laser V-Coat 405nm
The 66-256 is a Plano-Convex spherical lens, part of the extensive catalog of optical elements offered by Edmund Optics. This lens boasts a 12.0mm diameter and a focal length of 18.0mm, making it suitable for a wide range of applications.
The lens is made from n-SF5 Schott, a high-quality optical material known for its excellent transmission properties in the ultraviolet and visible regions of the spectrum. This material is particularly well-suited for use with lasers operating at a wavelength of 405nm.
The 66-256 features a laser-optimized V-coat coating on both the front and back surfaces. This coating is specifically designed to enhance the performance of lasers, providing improved damage threshold, lower scatter, and better laser beam control. The coating also ensures high transmission and low reflection at the design wavelength of 405nm.
The geometry of the lens includes a thickness of 1.41mm at the edge and 3.0mm at the center. The inner and outer radii are both 0mm, indicating a flat surface on the non-curved side of the lens. The radius of curvature on the curved side is 12.11mm, and the back focal length is 16.22mm.