Patent ID: 7540983

Claim:
A method of producing aspherical optical surfaces of optical elements, wherein said optical element is pre-ground, wherein a) in a first method step, said optical element is introduced into a basic form, which has a spherical form bed and is being held at a distance over the form bed, after which b) an intermediate medium is introduced in said basic form between said optical element and said form bed and, subsequently, said optical element is removed together with said intermediate medium from said basic form, after which c) said spherical form bed of said basic form or a second basic form is transformed into an aspherical form bed computationally determined In advance, after which d) said optical element is re-introduced with said intermediate medium into said basic form or said second basic form and said intermediate medium is sucked against said form bed by applying a vacuum, after which e) said optical element deformed by the vacuum applied is spherically machined on a free surface and f) finally, after removing the vacuum, the free surface assumes the form of an aspherical surface.