LB1247-A N-BK7 Bi-Convex Lens; Dia:2 in; f=750.0 mm ARC 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 750 mm
- BFL
- 748.7 mm
- R1
- 772 mm
- R2
- -772 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5150823520020043
- λ
- 633 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
LB1247-A N-BK7 Bi-Convex Lens; Dia:2 in; f=750.0 mm ARC 350-700nm
The LB1247-A is a high-quality bi-convex lens, designed and manufactured by Thorlabs, a leading global supplier of photonics equipment. This lens, constructed from the renowned N-BK7 glass from Schott, is a spherical lens with a base shape of a circle.
The lens boasts a diameter of 2 inches (50.8 mm) and a thickness at the edge of 3 mm, while the center thickness measures 3.8 mm. The effective focal length (EFL) is 750.0 mm, and the back focal length (BFL) is 748.7 mm. The radii of curvature for the first and second surfaces are 772 mm and -772 mm, respectively.
This lens is designed to work optimally with a wavelength of 633 nm. The front and back surfaces of the lens are coated with ARC 350-700nm, a broadband anti-reflection coating that enhances transmission in the 350-700 nm range.
The LB1247-A is currently in stock, as indicated by its weblink status. For more detailed information, users are encouraged to visit the product page at https://www.thorlabs.com/thorproduct.cfm?partnumber=LB1247-A.
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