photoresist the laminate is subsequently removed for development and the rest of the u03bcpols fabrications processes as described in fig2 and 5 this printing process using apparatus 46 is automated for large area u03bcpols production as shown in fig1 the laminate 46 is furnished in a large roll is fed to apparatus 42 when the vacuum pump 48 is off and the mask and cover 44 are open by means of an electronic controller the following automatic sequences are carried out 1 the vacuum is turned on 2 the cover and mask are lowered 3 the lamp is turned on for certain period of time 4 the lamp is turned off 5 the mask and cover are lifted 6 the vacuum is turned off and 7 the laminate is advanced these steps are repeated until the whole roll is finished the exposed roll 49 is then processed further this exposure apparatus is simple and has no critical alignment requirements the fully automated embodiment in fig1 is used for continuous mass production the raw roll of laminate 46 enters from the right and the finished roll 56 of u03bcpols exists from the left as one laminate segment is exposed it is advanced to the left developed and rinsed in station 50 said segment is then further advanced to the left to be dried in station 51 and advanced further to section 52 this station carries out the most critical u03bcpols process by one of three methods discussed above in connection.