| 摘要 |
<p>An optically curved device and method of fabrication are presented wherein a flexible layer is bonded to a thick epoxy layer which functions to conform the flexible layer to a desired shape. The thick epoxy layer undergoes high viscosity flow under pressure and conforms the flexible layer to a curved surface of a mold. The pressure on the epoxy can be created by squeezing the epoxy using a backing plate. As long as the optically smooth surface of the flexible layer has good contact with the curved surface of the mold under pressure of the epoxy flow, irregularities in the flexible layer optical surface are eliminated and the shape of the flexible layer is maintained when the epoxy is cured and the mold removed. Materials other than epoxies, such as thermal plastics, can also be used for bonding and conforming the flexible layer.</p> |
