G313206331 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-30mm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 22.4 mm
- EFL
- -30 mm
- R1
- -31.4 mm
- R2
- 31.4 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
G313206331 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-30mm
This is a G313206331 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 glass type in the optical industry known for its excellent optical properties, including low auto-fluorescence and a high Abbe number.
The lens has a negative focal length (EFL) of -30mm, making it suitable for applications that require light convergence. The double-concave design, characterized by two concave surfaces, further enhances its light convergence capabilities.
The lens's geometry includes inner and outer radii of 0, suggesting a symmetrical design. The radii of curvature for the first and second surfaces are -31.396mm and 31.396mm, respectively.
The lens is coated with Qio AL RALVIS AOI 45 on both the front and back surfaces, which is designed to enhance the lens's durability and performance in specific wavelength ranges. The lens operates at a wavelength of 588nm.
This lens is sourced from Qioptiq Photonics, a renowned vendor in the optical industry, and is currently in stock. For more information, please refer to the provided weblink.