63-764 40 mm Dia. N-BK7/N-SF5 Negative Achromatic Doublet; EFL=-80mm MgF2 400-700nm
- Type
- Lens
- Subtype
- Multiplets
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 40 mm
- EFL
- -80 mm
- R1
- -47.32 mm
- R2
- 40.51 mm
Material 1
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5185223876207927
- λ
- 550 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
Material 2
- Name
- N-SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6771143911586193
- λ
- 550 nm
- B1
- 1.52481889
- C1
- 0.011254756 μm2
- B2
- 0.187085527
- C2
- 0.0588995392 μm2
- B3
- 1.42729015
- C3
- 129.141675 μm2
63-764 40 mm Dia. N-BK7/N-SF5 Negative Achromatic Doublet; EFL=-80mm MgF2 400-700nm
The 63-764 is a high-quality negative achromatic doublet lens, sourced from the renowned optical components manufacturer, Edmund Optics. This lens is specifically designed for use in the 400-700nm wavelength range, making it suitable for a wide array of optical applications.
The lens features a base shape of a circle, with a diameter of 40mm and a thickness at the edge of 16.26mm. The inner radius is 0mm, while the outer radius is also 0mm. The effective focal length (EFL) of this lens is -80mm, providing a strong negative lens capability.
The lens is composed of two types of materials, N-BK7 from Schott and N-SF5 from Schott. These materials are known for their excellent optical properties, contributing to the high performance of the lens. The lens is coated with Edmund Optics' standard MgF2 coating on both the front and back surfaces, ensuring optimal light transmission and protection against environmental factors.
The geometry of the lens is intricate, with three distinct radii (r1, r2, and r3) and varying thicknesses at the center and edges. The center thickness is 4mm, while the thickness at the center 'a' point is 6.5mm. This complex geometry allows for precise control over the optical properties of the lens.
