48-691 12mm Dia. x -15 FL; VIS 0deg Coated; Plano-Concave Lens 425-675nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- -15 mm
- BFL
- -16.68 mm
- R1
- -11.77 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
48-691 12mm Dia. x -15 FL; VIS 0deg Coated; Plano-Concave Lens 425-675nm
The 48-691 is a Plano-Concave Spherical Lens with a 12mm diameter, offering a -15 FL (Focal Length) and a wavelength coverage of 425-675nm. This lens is sourced from Edmund Optics, a reputable vendor known for its high-quality optical components.
The lens is made from n-sf11 Schott, a popular material in the optical industry due to its excellent optical properties. It features a front and back coating of EDM VIS-0 STD CURVE, providing improved light transmission and reduced surface reflections.
The geometry of the lens includes a 4.47mm thickness at the edge and a 3mm thickness at the center. The inner and outer radii are both 0, indicating a flat surface on both sides of the lens. The back focal length (BFL) is -16.68mm, and the effective focal length (EFL) is -15mm.
The lens is available for purchase through the provided weblink, which is currently valid and indicates the product is in stock. This makes it an ideal choice for users looking for a reliable and readily available Plano-Concave Spherical Lens.