G313217525 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-150mm 725-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 22.4 mm
- EFL
- -150 mm
- R1
- -156.22 mm
- R2
- 156.22 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167817367777034
- λ
- 588 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
G313217525 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-150mm 725-1050nm
This is a G313217525 Double-Concave Lens, sourced from the renowned optical components manufacturer, Qioptiq Photonics. The lens boasts a 22.4 mm diameter and a center thickness of 1.5 mm, making it a robust and compact solution for various optical applications.
The lens is made of N-BK7, a high-quality borosilicate glass known for its excellent optical properties, including a low coefficient of thermal expansion and high homogeneity. This material is widely used in the optical industry for its superior performance and reliability.
The G313217525 lens features a double-concave geometry, with radii of curvature of -156.22 mm and 156.22 mm for the front and back surfaces, respectively. This design results in a negative focal length (EFL) of -150 mm, making it suitable for use in imaging systems, beam expanders, and other applications requiring a diverging lens.
The lens is coated with Qio Bbar Arb2nirnbk7 on both the front and back surfaces. This anti-reflection coating is specifically designed for the 725-1050 nm wavelength range, reducing surface reflections and improving transmission efficiency.