Aspheric lens

The use of aspheric optics is mainly due to their advantages over spherical optics. The biggest advantage is the correction of aberrations and the associated better imaging properties.
Aspherical lenses are also used in zoom lenses. These not only reduce system size but also improve image quality compared to applications using spherical lenses.
Aspheric lenses can be used to observe both stars and space. Aspheric optics included in its spectrometer. For use in space, optics must not only have excellent optical performance, but must also withstand extreme environmental conditions.
Another field of application is laser beam shaping, such as the production of top hat distributions. For example, in a beam shaping system with two aspheric lenses used to generate a top hat distribution, the first lens redistributes the incident laser beam (Gaussian distribution) in such a way that a uniform intensity distribution appears at a distance . The beam is then collimated with a second beam - creating a typical top hat distribution. Such aspherical applications are for example in material processing (eg cutting metals), but are of interest in medicine (eg ophthalmology). ). For market or new applications the aspherical range of lenses is from the meter. Using them can greatly reduce the total number of lenses used in the lens and increase the possible measurement range. Another plus: Reducing lens usage also makes the lens much lighter.