LB1607-A N-BK7 Bi-Convex Lens; Dia:2 in; f=175.0 mm ARC 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- 175 mm
- BFL
- 172.8 mm
- R1
- 179.1 mm
- R2
- -179.1 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
LB1607-A N-BK7 Bi-Convex Lens; Dia:2 in; f=175.0 mm ARC 350-700nm
The LB1607-A is a high-quality bi-convex lens, designed and manufactured by Thorlabs. This lens, constructed from the renowned N-BK7 glass from Schott, is a spherical lens featuring a convex-convex base shape and a circular geometry. The lens has a diameter of 2 inches (50.8 mm) and a thickness of 3 mm at the edge, with a center thickness of 6.6 mm.
The LB1607-A boasts an effective focal length (EFL) of 175 mm, making it suitable for a wide range of optical applications. The radii of curvature for the first and second surfaces are 179.1 mm and -179.1 mm, respectively, resulting in a back focal length (BFL) of 172.8 mm. The lens's inner and outer radii are both 0, indicating a uniform curvature across the lens surface.
This lens is designed to operate at a wavelength of 633 nm, and it features anti-reflection (AR) coatings on both the front and back surfaces. These coatings, designated as THo A Bbar, are optimized for the 350-700 nm range, ensuring minimal loss of light due to reflection.
More Lens
