112-5519E 50.8 mm Dia. x -200 mm FL; Uncoated; Plano-Concave Lens
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- EKSMA Optics
Properties
- Shape
- Circular
- Diameter
- 50.8 mm
- EFL
- -200 mm
- R1
- -83.6 mm
Material
- Name
- CaF2
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4182691687600177
- λ
- 2940 nm
- B1
- 0.5675888
- C1
- 0.00252643 μm2
- B2
- 0.4710914
- C2
- 0.010078333 μm2
- B3
- 3.8484723
- C3
- 1200.555973 μm2
112-5519E 50.8 mm Dia. x -200 mm FL; Uncoated; Plano-Concave Lens
The 112-5519E is a plano-concave lens, a type of spherical lens, sourced from EKSMA Optics. This lens boasts a diameter of 50.8 mm and a center thickness of 3.6 mm, with an edge thickness of 7.2 mm. The lens's design includes an inner radius of 0 mm and an outer radius of 0 mm, contributing to its plano-concave shape.
The lens's effective focal length (EFL) is -200 mm, indicating that it is a diverging lens, causing incoming light rays to spread out. This property makes it suitable for various applications, such as beam expansion or divergence.
The lens is crafted from CAF2 (Calcium Fluoride) material, specifically the mal-1963 variant, and is designed to operate at a wavelength of 2940 nm. Notably, this lens does not have any coating, which may affect its performance in certain applications. However, its uncoated nature can be advantageous in specific use cases where coating might introduce unwanted reflections or alter the lens's optical properties.
For more information and to check the lens's availability, please refer to the vendor's website at http://eksmaoptics.com/optical-components/lenses/plano-concave-lenses/.
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