Patent ID: 9738042
Date: 2017-08-22
CPC Classifications: B29D,G02B

Claim:
1. A method for the production of a monolithic lens wafer having a large number of microlenses, said method including the following steps, with the following sequence: oppositely arranging and fixing first and second dies to respective first and second holding systems, the first and second dies having first and second embossing sides, respectively; at least roughly orienting the first and second dies to one another in the X- and Y-directions and around an axis of rotation; applying a curable fluid on one of the first and second embossing sides of said first and second dies, respectively; and embossing the lens wafer by shaping and subsequent curing of the curable fluid, the shaping comprising moving the second die toward the first die via wedge error compensation means without contacting the first die during the embossing; wherein a wedge error compensation for parallel orientation of the first and second embossing sides is performed using said wedge error compensation means during said moving of the second die and/or during the embossing.