LD1357-A N-BK7 Bi-Concave Lens; Dia:12.7 mm; f=-50.0 mm ARC 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 12.7 mm
- EFL
- -50 mm
- BFL
- -51 mm
- R1
- -52.1 mm
- R2
- 52.1 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
LD1357-A N-BK7 Bi-Concave Lens; Dia:12.7 mm; f=-50.0 mm ARC 350-700nm
The LD1357-A is a high-quality bi-concave lens offered by Thorlabs, a leading vendor in the optical industry. This lens, crafted from the renowned N-BK7 glass by Schott, is designed for use in the visible spectrum, specifically at a wavelength of 587.6 nm.
The lens features a base shape of a circle, with a diameter of 12.7 mm. It has a center thickness of 3.5 mm and an edge thickness of 4.3 mm, providing a robust structure while maintaining a compact form. The lens's effective focal length (EFL) is -50 mm, and the back focal length (BFL) is -51 mm, indicating its concave-concave geometry.
The LD1357-A is coated with ARC 350-700nm on both the front and back surfaces. This anti-reflection coating enhances transmission in the 350-700 nm range, reducing unwanted reflections and improving overall system performance.
This lens is an excellent choice for applications that require a concave-concave lens with a high-quality Schott N-BK7 glass and anti-reflection coating in the visible spectrum.