63-619 25mm Dia. x 30mm FL; VIS 0deg Coated; Double-Convex Lens VIS 0deg 425-675nm
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- 30 mm
- BFL
- 28.31 mm
- R1
- 39.22 mm
- R2
- -39.22 mm
Material
- Name
- N-SF5
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.6727030184452947
- λ
- 587.6 nm
- B1
- 1.52481889
- C1
- 0.011254756 μm2
- B2
- 0.187085527
- C2
- 0.0588995392 μm2
- B3
- 1.42729015
- C3
- 129.141675 μm2
25mm Dia. x 30mm FL Visible Light Double-Convex Lens with VIS 0° Coating
This item is a 25mm diameter x 30mm focal length double-convex lens, designed for use with visible light. The lens is sourced from Edmund Optics, a reputable vendor in the optical industry. It is made from n-SF5 Schott, a high-quality optical glass known for its excellent transmittance and low auto-fluorescence.
The lens features a double-convex geometry, with radii of curvature of 39.22mm for the first surface and -39.22mm for the second surface. This geometry results in a back focal length of 28.31mm and an effective focal length of 30mm. The lens has a thickness of 1.41mm at the edge and 5.5mm at the center, providing robustness and stability.
The lens is coated with the EDM VIS-0 STD curve on both the front and back surfaces. This coating is designed to enhance the lens's performance in the visible light spectrum, specifically between 425nm and 675nm. It reduces surface reflections, improves transmittance, and increases the lens's overall efficiency.