89-027 20.0mm Dia. x 70.0mm 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
- 70 mm
- BFL
- 68.03 mm
- R1
- 36.18 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5110795649082278
- λ
- 785 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
89-027 20.0mm Dia. x 70.0mm FL; Plano-Convex Lens Laser V-Coat 785nm
The 89-027 is a Plano-Convex Spherical Lens, a high-quality optical component designed for use in a wide range of applications. Sourced from the renowned vendor Edmund Optics, this lens boasts a diameter of 20.0mm and a focal length of 70.0mm, making it a versatile choice for many optical systems.
The lens is crafted from the esteemed material N-BK7 Schott, a borosilicate glass known for its excellent optical properties, including a high refractive index and low dispersion. This makes the lens ideal for use in applications where high-quality imaging and minimal distortion are crucial.
The lens features a Plano-Convex geometry, with a flat front surface and a curved back surface. The radius of curvature of the back surface is 36.18mm, and the lens has a central thickness of 3mm and an edge thickness of 1.59mm. The back focal length is 68.03mm, and the effective focal length is 70mm.
The 89-027 is coated with Edmund Optics' Las V-Coat 785, a specialized coating designed to enhance the lens' performance in the 785nm wavelength range. This coating improves the lens' transmission and reduces reflection, making it an excellent choice for laser applications.
