LC1715-A N-BK7 Plano-Concave Lens; Dia:1 in; f=-50.0 mm ARC 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -50 mm
- BFL
- -52.3 mm
- R1
- -25.7 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
LC1715-A N-BK7 Plano-Concave Lens; Dia:1 in; f=-50.0 mm ARC 350-700nm
The LC1715-A is a plano-concave lens made from N-BK7 glass, a popular material in the optical industry due to its excellent optical properties. This lens, sourced from Thorlabs, features a diameter of 1 inch (25.4 mm) and a focal length of -50.0 mm, making it suitable for a wide range of applications.
The lens's geometry includes a thickness of 6.9 mm at the edge and 3.5 mm at the center, with an effective focal length (EFL) of -50 mm. The radius of curvature (R1) is -25.7 mm, and the back focal length (BFL) is -52.3 mm. The lens's inner and outer radii are both 0, indicating a flat surface on one side and a curved surface on the other.
The lens is coated with ARC 350-700nm, 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.
The LC1715-A is a spherical lens, a common type of lens used in various optical systems. The lens's material, N-BK7, is a type of borosilicate glass known for its low coefficient of thermal expansion and excellent optical transmission.