Aspherical Optics

 

Aspherical optics are more challenging to manufacture and test than the spherical optics but nevertheless have numerous advantages when viewed through the eyes of an optical designer.  A given quality can be achieved with fewer elements while using aspherical optics. Consequently the resultant device is lighter and more compact.
The complexity of manufacturing aspherical surfaces drove our manufacturers to use unique CNC and MRF machines in order to obtain good surface form. Special equipment is used for testing and inspection.

 

Aspherical surfaces are characterized by various parameters:

  • The best fit radius
  • The conic constant
  • The aspherical coefficient

 

Aspherical optics can be a substrate with a single polished surface like in the case of aspherical mirrors, or with two polished surfaces like in lenses.

Our general specification for aspherical optics is as written in the table below. Tighter demands can be considered as well.

 

 

aspheric1 aspheric2