FABRICATION OF AN ARRAY ILLUMINATOR USING TANDEM MICHELSON INTERFEROMETERS

Recently interferometric methods have been proposed for generation of arrays of equal intensity light spots. Double wedge plate interferomet er and Michelson interferometers in tandem are used as array generator s. However, there interferometric methods have poor light efficiency a nd low level of concentration of energy in addition to being bulky. We propose that a phase element realized by recording the cross interfer ence pattern using Michelson interferometers in tandem on a photograph ic plate and subsequently bleaching it, can be used as a new type of a rray generator. The performance of such an element as an array generat or is studied.