G314325329 25.4 mm Dia. N-BK7 Plano-Concave Lens; EFL=-1000mm 1064nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Qioptiq Photonics
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -1000 mm
- R1
- -523.3 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
G314325329 25.4 mm Dia. N-BK7 Plano-Concave Lens; EFL=-1000mm 1064nm
This is a Plano-Concave lens with a diameter of 25.4 mm, sourced from the renowned optical components manufacturer, Qioptiq Photonics. The lens is made of N-BK7, a popular glass type known for its excellent optical properties, particularly its low dispersion.
The lens features a center thickness of 1.5 mm and an effective focal length (EFL) of -1000mm at a wavelength of 1064nm. The negative EFL indicates that this is a diverging lens, which spreads out light rays that pass through it. This can be useful in various applications where beam expansion is required.
The lens is coated with Qio HP Nbar ARHS-YAG on both the front and back surfaces. This anti-reflection coating is designed to reduce surface reflections and increase transmission, particularly at the YAG laser wavelength of 1064nm.
The lens is spherical in shape, a common geometry for optical lenses due to its ease of manufacturing and good optical performance. However, it's important to note that spherical lenses can introduce spherical aberration, especially in off-axis beam applications.
The lens is currently in stock and available for purchase on the Qioptiq Photonics website. For more detailed specifications and purchasing information, please refer to the provided weblink.
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