112-5204E 25.4 mm Dia. x -40 mm FL; Uncoated; Plano-Concave Lens
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- EKSMA Optics
Properties
- Shape
- Circular
- Diameter
- 25.4 mm
- EFL
- -40 mm
- R1
- -16.7 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
112-5204E 25.4 mm Dia. x -40 mm FL; Uncoated; Plano-Concave Lens
The 112-5204E is a Plano-Concave Lens, a type of spherical lens, sourced from EKSMA Optics. This lens is characterized by its concave shape, which is thinner at the center and thicker at the edges. The base shape of this lens is circular, with a diameter of 25.4 mm.
The lens has an effective focal length (EFL) of -40 mm, indicating that it diverges light. The center thickness of the lens is 2.5 mm, while the edge thickness is 7.8 mm. The lens is made from CAF2 (Calcium Fluoride) material, specifically the mal-1963 variant, and is designed to operate at a wavelength of 2940 nm.
The lens does not have any coating, which means it is uncoated. This may affect the lens's performance in certain applications, particularly those requiring high transmission or resistance to environmental factors. However, uncoated lenses can be advantageous in applications where cost, simplicity, or specific optical properties are a priority.
For more information about this lens, including pricing and availability, please refer to the vendor's website linked below.
Weblinks:
- http://eksmaoptics.com/optical-components/lenses/plano-concave-lenses/
Weblink status:
- Valid - in stock
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