LM11-25-150 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-150mm Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Convex)
- Brand
- CeNing Optics
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -150 mm
- BFL
- -149.5 mm
- R1
- 90 mm
- R2
- 41.42 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
LM11-25-150 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-150mm Uncoated
The LM11-25-150 is a spherical lens with a base shape of a circle, sourced from CeNing Optics. This lens is a negative meniscus type, featuring concave and convex surfaces. The lens has a diameter of 25.4 mm and a thickness of 4 mm at the edge, tapering down to 3 mm at the center.
The effective focal length (EFL) of this lens is -150mm, indicating its diverging nature. The first radius of curvature (R1) is 90 mm, while the second radius (R2) is 41.42 mm. The back focal length (BFL) is -149.5 mm. The lens does not have an inner or outer radius, suggesting a uniform curvature across its surface.
The lens is made of n-BK7 Schott, a high-quality optical glass known for its excellent transparency and low auto-fluorescence. The lens is designed to operate at a wavelength of 546.1 nm. It is uncoated, meaning it does not have any anti-reflective or other surface coatings.
According to the vendor's website, this lens is in stock, indicating its availability for immediate purchase and use. The item data also provides a link to the vendor's website for further information and verification.
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