平凸透鏡
Plano-convex lenses have low spherical aberration. Use them with the plano side facing the point source or the focus and the curve side towards the collimated beam.
In a Lens, the following parameter are usually used to declare it: diameter (φ), central thickness (tc), radius (R), edge thickness (te), focal length (f), reflective index.
Specifications
Material: ........................................BK7, Silica, CaF2, etc.
Diameter Tolerance: .....................................+0.0, -0.1 mm
tc tolerance: .......................................................±0.1mm
Clear Aperture: ........................................................>85%
Surface Quality: .......................................................40-20
Flatness: .....................................................N=2, △N=0.5
Centration: ......................................................±3 arc min
Size (φ): ............................................3 to 200mm or larger
