LB1869-B N-BK7 Bi-Convex Lens; Dia:1 in; f=500.0 mm ARC 650-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 500 mm
- BFL
- 499.2 mm
- R1
- 514.7 mm
- R2
- -514.7 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
LB1869-B N-BK7 Bi-Convex Lens; Dia:1 in; f=500.0 mm ARC 650-1050nm
The LB1869-B is a high-quality bi-convex lens from Thorlabs, designed for use in the 650-1050nm wavelength range. This lens is fabricated from N-BK7 Schott glass, a popular material for its excellent optical properties and wide transmission range.
The lens features a diameter of 1 inch (25.4mm) and a focal length of 500.0mm, providing a high level of magnification and precision. The bi-convex design, with radii of curvature of 514.7mm on both sides, ensures a wide field of view and minimal distortion.
The lens has a center thickness of 2.3mm and an edge thickness of 2mm, providing robustness and durability. The lens is coated with Thorlabs' BBAR coating on both the front and back surfaces, enhancing its transmission capabilities and reducing unwanted reflections.
This lens is ideal for use in various applications, including imaging systems, beam shaping, and laser applications. It is currently in stock, as indicated by its valid weblink status, making it readily available for immediate use.
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