Diffractive optical element and a method for producing same

   
   

The invention provides a method for producing a diffractive optical element, including forming first and second gratings, substantially in mutual registration, of at least first and second optical materials, such that for predetermined two or more wavelengths, the diffractive optical element has desired phase retardations, thereby avoiding the generation of chromatic aberrations. The invention further provides a diffractive optical element.

A invenção fornece um método produzindo um elemento ótico diffractive, including dar forma primeiramente e segundos gratings, substancialmente no registo mútuo, materiais de ao menos primeiramente e em segundo óticos, tais que para dois predeterminados ou o mais wavelengths, o elemento ótico diffractive desejaram os retardations da fase, evitando desse modo a geração de aberrações chromatic. A invenção mais adicional fornece um elemento ótico diffractive.

 
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