G313215525 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-50mm 725-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 22.4 mm
- EFL
- -50 mm
- R1
- -52.33 mm
- R2
- 52.33 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
G313215525 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-50mm 725-1050nm
This is a G313215525 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 double-concave geometry, with radii of curvature of -52.33 mm on both sides, resulting in a back focal length (BFL) of -50 mm.
The lens is designed to operate in the near-infrared region of the spectrum, with a specified wavelength of 588 nm. It comes with broadband anti-reflection coatings on both surfaces, identified as "qio bbar arb2nirnbk7". These coatings are optimized for the 725-1050 nm range, reducing surface reflections and increasing transmission in this spectral region.
The lens is sourced from Qioptiq Photonics, a leading global provider of photonic solutions and components. According to the vendor, the lens is in stock, ensuring quick delivery times. The product's webpage provides more detailed specifications and purchasing information.