65-256 2.0mm Dia. x 4.0mm FL; Uncoated; Plano-Convex Lens
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 2 mm
- EFL
- 4 mm
- BFL
- 3.57 mm
- R1
- 3.4 mm
Material
- Name
- N-LASF9
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.8502442055719617
- λ
- 587.6 nm
- B1
- 2.00029547
- C1
- 0.0121426017 μm2
- B2
- 0.298926886
- C2
- 0.0538736236 μm2
- B3
- 1.80691843
- C3
- 156.530829 μm2
65-256 2.0mm Dia. x 4.0mm FL; Uncoated; Plano-Convex Lens
The 65-256 2.0mm Dia. x 4.0mm FL is a Plano-Convex lens sourced from Edmund Optics. This lens, with a diameter of 2.0mm, is designed to provide a focal length of 4.0mm, making it suitable for a variety of optical applications.
The lens is uncoated, which means it does not have any additional layers to enhance its optical properties. This can be beneficial in certain applications where the introduction of additional layers might interfere with the desired optical outcomes. However, it's important to note that uncoated lenses may be more susceptible to environmental factors such as dust and moisture, and they may not perform as well in high-intensity light situations due to reduced light transmission and potential for lens flare.
The lens geometry includes a thickness of 0.65mm at the edge and 0.8mm at the center. The effective focal length (EFL) is 4.0mm, and the radius of curvature (R1) is 3.4mm. The back focal length (BFL) is 3.57mm. The lens is made from the material n-lasf9 schott, which is a high-quality optical material known for its excellent transparency and durability.
This lens is designed to work with a wavelength of 587.6nm, making it suitable for applications that use this specific wavelength. The lens shape is spherical, which is a common and versatile lens shape in optical systems.
