SLB-07B-20P 7.0 mm Dia. x 20.4 mm FL; Double-Convex Lens Uncoated
- Type
- Lens
- Subtype
- Spherical Lens (Convex-Convex)
- Brand
- OptoSigma
Properties
- Shape
- Circular
- Diameter
- 7 mm
- EFL
- 20.4 mm
- BFL
- 19.6 mm
- R1
- 20.76 mm
- R2
- -20.76 mm
Material
- Name
- N-BK7
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.518720636186463
- λ
- 546.1 nm
- B1
- 1.03961212
- C1
- 0.00600069867 μm2
- B2
- 0.231792344
- C2
- 0.0200179144 μm2
- B3
- 1.01046945
- C3
- 103.560653 μm2
SLB-07B-20P 7.0 mm Dia. x 20.4 mm FL; Double-Convex Lens Uncoated
The SLB-07B-20P is a 7.0 mm diameter double-convex lens with a focal length of 20.4 mm, sourced from OptoSigma. This lens is made of n-bk7 schott material, a popular choice for its high refractive index and low dispersion, making it ideal for a wide range of optical applications.
The lens features a base shape of a circle, with a thickness of 1.7 mm at the edge and 2.3 mm at the center. The effective focal length (EFL) is 20.4 mm, while the back focal length (BFL) is 19.6 mm. The radii of curvature are 20.76 mm for the first surface and -20.76 mm for the second surface, indicating a convex-convex or biconvex geometry.
Notably, this lens is uncoated, which means it does not have any additional layers to enhance light transmission or reduce reflection. This may be suitable for applications where such coatings are not required or desirable.
According to the vendor's website, this item is currently in stock, making it readily available for immediate use. For more detailed information or to make a purchase, please visit the provided weblink.