Production of microlenses or microlens arrays made from glassy material comprises preparing a first substrate having a surface with recesses, covering the first substrate with a second substrate, joining together in a vacuum, and tempering

摘要

Production of single microlenses or microlens arrays made from glassy material comprises preparing a first substrate having a surface with recesses, covering the first substrate with a second substrate, joining together in a vacuum, tempering the substrate composite so that the second substrate reaches into the recesses of the first substrate. The side of the second substrate facing away from the first substrate is structured to form a microlens surface. The glassy material of the second substrate flows into the recesses of the first substrate to form a microlens surface. An independent claim is also included for an alternative process for the production of single microlenses or microlens arrays made from glassy material.