49-901 20.0mm Dia. x 25.0mm FL; VIS 0deg Coated; Plano-Convex Lens VIS 0° 425-675nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 20 mm
- EFL
- 25 mm
- BFL
- 22.76 mm
- R1
- 19.62 mm
Material
- Name
- N-SF11
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7847141030246312
- λ
- 587.6 nm
- B1
- 1.73759695
- C1
- 0.013188707 μm2
- B2
- 0.313747346
- C2
- 0.0623068142 μm2
- B3
- 1.89878101
- C3
- 155.23629 μm2
49-901 20.0mm Dia. x 25.0mm FL; VIS 0deg Coated; Plano-Convex Lens VIS 0° 425-675nm
The 49-901 is a Plano-Convex Lens, a type of spherical lens, sourced from Edmund Optics. This lens has a base shape of a circle and a diameter of 20.0mm, making it suitable for a wide range of optical applications. The lens has a thickness of 1.26mm at the edge and 4.0mm at the center, providing a balanced structure for efficient light transmission.
The effective focal length (EFL) of this lens is 25.0mm, which is the distance from the lens's secondary principal plane to its focal point. The first radius of curvature (R1) is 19.62mm, and the back focal length (BFL) is 22.76mm. The lens does not have an inner or outer radius, indicating a uniform curvature across its surface.
The lens is made from n-sf11 Schott, a high-index glass with excellent optical properties. It is designed to work within the visible light spectrum, specifically at a wavelength of 587.6nm. The lens features a standard VIS 0° coating on both the front and back surfaces, which enhances its light transmission capabilities and reduces surface reflections.
