Search, compare and simulate with 3DOptix!

SLB-20B-50N 20.0 mm Dia. x -49.7 mm FL; Double-Concave Lens Uncoated

SLB-20B-50N 20.0 mm Dia. x -49.7 mm FL; Double-Concave Lens Uncoated

Type
Lens
Subtype
Spherical Lens (Concave-Concave)
Brand
OptoSigma
Product webpage
OptoSigma products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
20 mm
EFL
-49.7 mm
BFL
-50.3 mm
R1
-51.9 mm
R2
51.9 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-20B-50N 20.0 mm Dia. x -49.7 mm FL; Double-Concave Lens Uncoated

The SLB-20B-50N is a high-quality double-concave lens offered by OptoSigma, a leading vendor in the optical industry. This lens, designed with a base shape of a circle, is fabricated from the renowned material n-BK7 Schott, ensuring durability and reliability.

The lens boasts a diameter of 20.0 mm and a thickness at the edge of 3.9 mm, while the center thickness is 2 mm. The effective focal length (EFL) is -49.7 mm, indicating a strong converging power. The first radius of curvature (R1) is -51.9 mm, and the second radius (R2) is 51.9 mm, demonstrating the double-concave nature of the lens.

The back focal length (BFL) is -50.3 mm, and the lens does not have any coating, which is indicated in the 'coating' parameter being an empty object. This lens is designed to operate at a wavelength of 546.1 nm, making it suitable for various applications in the optical field.

Find and simulate products from trusted suppliers!