G314315400 22.4 mm Dia. N-BK7 Plano-Concave Lens; EFL=-50mm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 22.4 mm
- EFL
- -50 mm
- R1
- -26.04 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
G314315400 22.4 mm Dia. N-BK7 Plano-Concave Lens; EFL=-50mm
This is a Plano-Concave Lens, type N-BK7, with a diameter of 22.4 mm and a center thickness of 1.5 mm. The effective focal length (EFL) of this lens is -50mm, making it a negative or diverging lens. The radius of curvature (R1) for this lens is -26.039mm, indicating a concave shape. The inner and outer radii are both 0, suggesting a simple, unmounted lens.
The lens is made of N-BK7, a type of borosilicate glass commonly used in optical applications due to its low coefficient of thermal expansion and excellent optical transmission properties. The wavelength for this lens is 588nm, which is within the visible light spectrum.
The lens is coated with Qio Silver RAGV 45 on both the front and back surfaces. This coating enhances the lens's durability and resistance to environmental factors, while also improving its optical performance by reducing reflection and increasing transmission.
This lens is sourced from Qioptiq Photonics, a leading vendor in the field of precision optics. According to the vendor, the lens is in stock and available for immediate purchase. For more information, please refer to the provided weblink.
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