Compared to the monofocal intraocular lens, the multifocal lens can provide a wider range for depth of focus.
多焦点人工晶状体具有比单焦点人工晶状体更广阔的焦点深度范围。
It makes the central maximum in the Airy pattern narrower and increases the depth of focus.Calculation results have shown that this kind of apodizer is superior to the phase-shifting apodizer.
So by having lots of different input, lots of different connections from our visual world, that helps to provide depth of feel, depth of focus, and gives you really great clarity for your vision.
Depth of focus is a lens optics concept that measures the tolerance of placement of the image plane (the film plane in a camera) in relation to the lens. In a camera, depth of focus indicates the tolerance of the film's displacement within the camera, and is therefore sometimes referred to as "lens-to-film tolerance."