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LM11-25-125 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-125mm Uncoated

LM11-25-125 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-125mm Uncoated

Type
Lens
Subtype
Spherical Lens (Concave-Convex)
Brand
CeNing Optics
Product webpage
CeNing Optics products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
25.4 mm
EFL
-125 mm
BFL
-123.7 mm
R1
90 mm
R2
37.26 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

LM11-25-125 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-125mm Uncoated

The LM11-25-125 is a spherical lens from CeNing Optics, featuring a negative meniscus design with a diameter of 25.4 mm. This lens is made from N-BK7, a popular glass type known for its excellent optical properties, particularly its high refractive index and low dispersion. The lens has a base shape of a circle, with a thickness of 4.2 mm at the edge and 3 mm at the center.

The lens has an effective focal length (EFL) of -125 mm, indicating that it is a diverging lens, which spreads out light rays. This makes it suitable for applications such as beam expansion or collimation. The back focal length (BFL) is -123.7 mm, and the lens has no inner or outer radius, suggesting a simple meniscus design.

The LM11-25-125 is uncoated, meaning it does not have any anti-reflective coatings. While this may result in higher reflective losses, it also means the lens is more cost-effective and suitable for applications where such losses are not critical.

This lens is currently in stock and available for purchase through the vendor's website. With its robust design and versatile applications, the LM11-25-125 is an excellent choice for various optical projects.

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