Lens system with reduced sensitivities and a method of manufacturing

摘要

A lens system has nominal focal length and aberrations and includes a plurality of lens components defined by design parameter values and a special airspace distance. The lens system is characterized in design such that manufacturing deviations from the design parameter values cause a variation from the nominal focal length and a variation in at least one of the aberrations. Both of these deviations can be offset simultaneously by a single change in the special airspace distance.