G313214525 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-40mm 725-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 22.4 mm
- EFL
- -40 mm
- R1
- -41.87 mm
- R2
- 41.87 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
G313214525 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-40mm 725-1050nm
This is a G313214525 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 of -40mm, indicating its double-concave nature, which means it diverges light rays. It is designed to operate within the wavelength range of 725-1050nm, making it suitable for near-infrared applications.
The lens is coated with Qio Bbar Arb2nirnbk7 on both the front and back surfaces. This coating enhances the lens's performance by reducing reflection and increasing transmission within the specified wavelength range.
The lens's geometry is spherical, with radii of curvature of -41.867mm and 41.867mm for the first and second surfaces, respectively. The lens is unmounted, providing flexibility for integration into various optical systems.
This lens is available from Qioptiq Photonics, a leading vendor in the field of precision optics. According to the vendor's website, the lens is currently in stock, ensuring quick delivery for your optical system needs.