A projection exposure lens system has an object side catadioptric system, and intermediate image and a refractive lens system. The refractive lens system from its intermediate image side and in the direction of its image plane has a first lens group of positive refractive power, a second lens group of negative refractive power, a third lens group of positive refractive power, a fourth lens group of negative refractive power, and a fifth lens group of positive refractive power.

 
Web www.patentalert.com

< Damped control of a micromechanical device

< Optical transmission system using Raman amplification

> Medical binocular stereomicroscope

> Illumination apparatus for microscope and microscope

~ 00231