89-021 20.0mm Dia. x 20.0mm FL; Plano-Convex Lens Laser V-Coat 785nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 20 mm
- BFL
- 17.42 mm
- R1
- 15.7 mm
Material
- Name
- N-SF11
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7655227201707375
- λ
- 785 nm
- B1
- 1.73759695
- C1
- 0.013188707 μm2
- B2
- 0.313747346
- C2
- 0.0623068142 μm2
- B3
- 1.89878101
- C3
- 155.23629 μm2
89-021 20.0mm Dia. x 20.0mm FL; Plano-Convex Lens Laser V-Coat 785nm
The 89-021 is a Plano-Convex Spherical Lens, a high-quality optical component designed for use in a wide range of applications. This lens, sourced from the renowned vendor Edmund Optics, boasts a diameter of 20.0mm and a focal length of 20.0mm, making it a versatile choice for many optical systems.
The lens is crafted from n-sf11 Schott, a material known for its excellent optical properties. This is further enhanced by the lens's geometry, which includes a 1.0mm edge thickness and a 4.6mm center thickness. The lens's effective focal length (EFL) is 20.0mm, and its radius of curvature (R1) is 15.7mm. The back focal length (BFL) is 17.42mm, and both the inner and outer radii are 0mm.
The 89-021 is coated with Edmund Optics' Las V-Coat 785, a specialized coating designed for use with a 785nm wavelength. This coating ensures optimal performance and durability, making the lens suitable for use in laser applications.