LM01-25-500 25.4 mm Dia. N-BK7 Positive Meniscus Lens; EFL=500mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Concave)
- Brand
- CeNing Optics
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- 500 mm
- BFL
- 495.4 mm
- R1
- 123.9 mm
- R2
- 235 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
LM01-25-500 25.4 mm Dia. N-BK7 Positive Meniscus Lens; EFL=500mm Uncoated
The LM01-25-500 is a spherical lens with a base shape of a circle, sourced from CeNing Optics. This lens is a positive meniscus type, characterized by its convex-concave geometry. The lens has a diameter of 25.4 mm and a thickness at the edge of 3.2 mm, while the center thickness is slightly more at 3.5 mm.
The effective focal length (EFL) of this lens is 500mm, making it suitable for applications that require long-focus lenses. The first radius of curvature (R1) is 123.9 mm, and the second radius (R2) is 235 mm. The back focal length (BFL) is 495.4 mm. The lens does not have any inner or outer radius, indicating a uniform curvature.
The lens is made of N-BK7, a type of glass commonly used in optical applications due to its excellent optical properties. The wavelength for this lens is 546.1 nm. The lens does not have any coating, which may affect its light transmission properties.
Please note that the vendor, CeNing Optics, lists this lens as in stock on their website. For more information, you can refer to the provided web link.
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