LA1253-A N-BK7 Plano-Convex Lens; Dia:25.0 mm; f=200.0 mm ARC 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 200 mm
- BFL
- 198.1 mm
- R1
- 103 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5150891983370924
- λ
- 632.8 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
LA1253-A N-BK7 Plano-Convex Lens; Dia:25.0 mm; f=200.0 mm ARC 350-700nm
The LA1253-A is a high-quality plano-convex lens from Thorlabs, designed for use in a wide range of optical applications. This lens is made from N-BK7 glass, a popular material for its excellent optical properties and high damage threshold. The lens has a diameter of 25.0 mm and a focal length of 200.0 mm, making it suitable for use in systems where a long focal length is required.
The lens features an 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, ensuring high-quality performance and minimal loss of light. The lens has a thickness of 2.04 mm at the edge and 2.8 mm at the center, providing a robust and durable design.
The geometry of the lens is spherical, with a radius of curvature of 103 mm on the convex side. The back surface of the lens is flat, providing a planar surface for coupling with other optical components. The lens has a clear aperture of 25.0 mm, providing a wide field of view and high light-gathering capability.