LB1056-A N-BK7 Bi-Convex Lens; Dia:1 in; f=250.0 mm ARC 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 250 mm
- BFL
- 249.1 mm
- R1
- 257.1 mm
- R2
- -257.1 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
LB1056-A N-BK7 Bi-Convex Lens; Dia:1 in; f=250.0 mm ARC 350-700nm
The LB1056-A is a high-quality bi-convex lens from Thorlabs, designed for use in a wide range of optical applications. This lens is made from N-BK7, a popular glass type known for its excellent optical properties, and features a diameter of 1 inch and a focal length of 250.0 mm.
The lens is spherical in shape, with a front radius of curvature (R1) of 257.1 mm and a back radius of curvature (R2) of -257.1 mm. This bi-convex design allows for efficient light transmission and focusing. The lens has an effective focal length (EFL) of 250 mm, a clear aperture of 1 inch, and a center thickness of 2.6 mm.
The LB1056-A is coated with a broadband anti-reflection coating, designed to reduce surface reflections and increase transmission in the 350-700 nm range. This coating is applied to both the front and back surfaces of the lens.
This lens is part of Thorlabs' extensive catalog of optical elements, and is available for immediate purchase from their website. The 'weblink status' indicates that the lens is currently in stock, ensuring quick delivery for your optical project needs.
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