G313216525 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-100mm 725-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 22.4 mm
- EFL
- -100 mm
- R1
- -104.41 mm
- R2
- 104.41 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
G313216525 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-100mm 725-1050nm
This is a G313216525 model double-concave lens, featuring a 22.4 mm diameter and a center thickness of 1.5 mm. The lens is made of N-BK7, a popular optical glass from Schott, known for its excellent optical properties and wide transparency range.
The lens has a focal length (EFL) of -100mm, indicating its concave nature. It is designed to work within the wavelength range of 725-1050nm, making it suitable for near-infrared applications.
The lens features a symmetric concave shape, with both radii of curvature being equal in magnitude but opposite in sign (R1=-104.41mm, R2=104.41mm). This design ensures a uniform curvature across the lens surface, providing a consistent optical performance.
The lens is coated with Qio Bbar Arb2nirnbk7 on both the front and back surfaces. This coating is specifically designed for N-BK7 glass and provides broadband anti-reflection properties, reducing surface reflections and improving transmission within the specified wavelength range.
The lens is sourced from Qioptiq Photonics, a leading global designer and manufacturer of photonic products and solutions. The weblink provided leads to the product page on Qioptiq's official website, where users can find more detailed specifications and purchase information.
