69-390 12.0mm Dia. x 42.0mm FL; Plano-Convex Lens Laser V-Coat 532nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- 42 mm
- BFL
- 40.22 mm
- R1
- 21.71 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5194725830654814
- λ
- 532 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
69-390 12.0mm Dia. x 42.0mm FL; Plano-Convex Lens Laser V-Coat 532nm
The 69-390 is a Plano-Convex spherical lens, a type of optical lens with one side flat and the other side curved outwards. This lens, sourced from Edmund Optics, boasts a diameter of 12.0mm and a focal length of 42.0mm, making it suitable for a wide range of applications.
The lens is crafted from n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low dispersion. This material ensures that the lens delivers sharp, clear images with minimal chromatic aberration.
The 69-390 features a laser-optimized V-coat coating on both the front and back surfaces. This coating, designed for a wavelength of 532nm, enhances the lens's performance by reducing reflection and increasing transmission. The result is a lens that maximizes light throughput, making it ideal for laser applications.
The lens's geometry includes an edge thickness of 1.85mm and a center thickness of 2.7mm. The inner and outer radii are both zero, indicating a uniform curvature. The back focal length is 40.22mm, and the effective focal length is 42mm.