LB1157-B N-BK7 Bi-Convex Lens; Dia:6.0 mm; f=10.0 mm ARC 650-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 6 mm
- EFL
- 10 mm
- BFL
- 9.2 mm
- R1
- 9.9 mm
- R2
- -9.9 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
LB1157-B N-BK7 Bi-Convex Lens; Dia:6.0 mm; f=10.0 mm ARC 650-1050nm
The LB1157-B is a high-quality bi-convex lens from Thorlabs, designed with a diameter of 6.0 mm and a focal length of 10.0 mm. This lens is fabricated from N-BK7, a popular glass type known for its excellent optical properties, making it an ideal choice for various applications.
The lens features a double-convex geometry, which provides a superior optical performance. The front and back surfaces of the lens are coated with a broadband anti-reflection coating (ARC), specifically designed for the 650-1050nm wavelength range. This coating significantly reduces surface reflections, thereby enhancing the overall transmission of the lens.
The lens has a central thickness of 2.4 mm and an edge thickness of 1.5 mm, ensuring robustness and durability. The inner and outer radii are 0 mm, and the back focal length is 9.2 mm. The lens is available in the Schott n-BK7 material, which offers a high Abbe number and low dispersion, making it suitable for a wide range of applications, including laser systems, interferometry, and imaging applications.
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