LD1613-C N-BK7 Bi-Concave Lens; Dia:25.4 mm; f=-100.0 mm ARC 1050-1700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -100 mm
- BFL
- -101 mm
- R1
- -103.7 mm
- R2
- 103.7 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
LD1613-C N-BK7 Bi-Concave Lens; Dia:25.4 mm; f=-100.0 mm ARC 1050-1700nm
The LD1613-C is a high-quality bi-concave lens offered by Thorlabs, a leading vendor in the optical industry. This lens, designed with a spherical shape, is specifically crafted from N-BK7 Schott glass, a material well-known for its excellent optical properties.
The lens boasts a diameter of 25.4 mm and a thickness of 5.6 mm at the edge, reducing to 4 mm at the center. The bi-concave design, characterized by radii of curvature of -103.7 mm and 103.7 mm for the front and back surfaces, respectively, results in a back focal length of -101 mm. This configuration provides a focal length of -100 mm, making it suitable for a wide range of applications.
The lens features anti-reflection coatings on both the front and back surfaces, designed to operate within the wavelength range of 1050-1700 nm. These coatings are crucial for minimizing surface reflections and enhancing overall transmission, thereby optimizing the performance of the lens in its intended application.
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