LB11-25-75 25.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-75mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Concave)
- Brand
- CeNing Optics
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -75 mm
- R1
- -78.09 mm
- R2
- 78.09 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.518720636186463
- λ
- 546.1 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
LB11-25-75 25.4 mm Dia. N-BK7 Double-Concave Lens; EFL=-75mm Uncoated
This is a Spherical Lens (Concave-Concave) type optical component with a circular base shape, sourced from CeNing Optics. The lens has a diameter of 25.4 mm and a center thickness of 2 mm. The effective focal length (EFL) of this lens is -75 mm, making it a double-concave lens.
The lens is made of N-BK7 Schott, a popular optical glass known for its excellent optical properties. The wavelength for this lens is 546.1 nm. The first radius of curvature (R1) is -78.09 mm, and the second radius of curvature (R2) is 78.09 mm. The lens does not have any coating specified in the item data.
The vendor, CeNing Optics, indicates that this item is in stock and provides a link to their website for more information. The link is valid at the time of writing.
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