LF1141-A 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-1000mm 350-700nm
- Type
- Lens
- Subtype
- Spherical Lens (Concave-Convex)
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -1000 mm
- BFL
- -994.6 mm
- R1
- 500 mm
- R2
- 253.2 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.5167984379050088
- λ
- 587.6 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
LF1141-A 25.4 mm Dia. N-BK7 Negative Meniscus Lens; EFL=-1000mm 350-700nm
The LF1141-A is a high-quality spherical lens from Thorlabs, featuring a negative meniscus design. This lens is constructed from N-BK7 Schott glass, a popular material known for its excellent optical properties and versatility. The lens has a diameter of 25.4 mm and a thickness of 3.2 mm at the edge, tapering down to 3 mm at the center, providing a sleek and compact design.
The lens boasts an effective focal length (EFL) of -1000mm, making it suitable for a wide range of applications that require powerful optical magnification or reduction. The LF1141-A is designed to work optimally with wavelengths between 350 and 700nm, covering a broad spectrum of the visible light range.
The lens features anti-reflection coatings on both the front and back surfaces, specifically THo A Bbar coatings. These coatings are designed to reduce surface reflections and increase transmission, thereby enhancing the overall performance and efficiency of the lens.
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