G313215331 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-50mm
- 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
G313215331 22.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-50mm
This is a G313215331 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. The effective focal length (EFL) of this lens is -50mm, making it a concave lens that diverges light.
The lens has two radii of curvature: r1 is -52.33mm, and r2 is 52.33mm. These radii, combined with the lens's material and thickness, contribute to its optical power and performance. The lens's inner and outer radii are both 0, indicating that the lens has a uniform thickness across its diameter.
The lens is coated with Qio AL RALVIS AOI 45 on both the front and back surfaces. This coating enhances the lens's performance by reducing reflection and increasing transmission, which is particularly beneficial at the specified wavelength of 588nm.
This lens is sourced from Qioptiq Photonics, a renowned vendor in the optical industry. According to the vendor's information, the lens is in stock and available for immediate purchase.
