Description: 650-1050 nm, Ø1/2" N-BK7 Bi-Convex Lens with 50.0 mm Focal Length
Part Number | LB1844-B |
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Category | Optics |
Manufacturer | ThorLabs |
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The LB1844-B by ThorLabs is a bi-convex lens that is designed for precision imaging applications. Crafted from a top-quality N-BK7 substrate and coated with a B-coating and antireflection coating for the 650-1050 nm range on both surfaces, the LB1844-B is ideal for applications where UV fused silica is not required.
The LB1844-B boasts a Ø1/2" diameter and 50.0 mm focal length, making it a perfect fit for many finite imaging applications. The N-BK7 substrate used in this lens is one of the most frequently used optical glasses for optical components that are high-quality, thanks to its excellent optical properties. The LB1844-B is best suited for imaging applications in which the image and object are on the lens’ opposite sides, and the image ratio and object distances (conjugate ratio) is between 5 and 0.2.
Diameter | 12.7 mm |
Focal Length | 50.0 mm |
Diopter | +20.0 |
Radius of Curvature | 51.1 mm |
Center Thickness | 2.6 mm |
Edge Thickness | 1.8 mm |
Back Focal Length | 49.1 mm |
Lens Size | Ø1/2" |