Kunshan Noli Optics Introduction: The application field of aspherical lenses

The use of aspherical optics is mainly due to its advantages over spherical optics. The biggest advantage is the correction of aberrations and associated better imaging characteristics.

For example, telescopes, especially those with large diameters. Aspherical lenses are also used in zoom lenses. These not only reduce the system size but also improve the image quality compared to applications using spherical lenses.

Aspherical lenses can be used to observe both stars and space. Aspherical optical elements included in its spectrometer. In order to be used in space, optics must not only have excellent optical performance, but also withstand extreme environmental conditions.

Another application area is laser beam forming, such as the production of top cap distribution. For example, in a beam-shaping system with two aspherical lenses used to generate a top-hat distribution, the first lens redistributes the incoming laser beam in such a way (Gaussian distribution) that a uniform intensity distribution appears at a certain distance. The beam is then collimated with the second beam - creating a typical bowler hat distribution. Such aspherical applications are for example in material processing (e.g., cutting metals), but are of interest in medicine (e.g., ophthalmology). For the market or new application lens the aspherical range is from the instrument. Using them can greatly reduce the total number of lenses used in a lens and increase the possible measurement range. Another advantage: Reduced lens use also makes the lens much lighter.