| Patent application number | Description | Published |
|---|
| 20080230934 | METHOD OF PRODUCING A WAFER SCALE PACKAGE - A method for manufacturing a wafer scale package including at least one substrate having replicated optical elements. The method uses two substrates, at least one of which is pre-shaped and has at least one recess in its front surface. Optical elements are replicated on a first substrate by causing a replication tool to abut the first substrate. The second substrate is then attached to the first substrate in an abutting relationship in such a way that the optical element is contained in a cavity formed by the recess in one of the substrates in combination with the other substrate. Thereby, a well defined axial distance between the optical elements and the second substrate is achieved. Consequently, well defined axial distance between the optical elements and any other objects attached to the second substrate, e.g. further optical elements, image capturing devices, light sources, is also established. | 09-25-2008 |
| 20100072640 | MANUFACTURING A REPLICATION TOOL, SUB-MASTER OR REPLICA - In a process of manufacturing, by replication, a plurality of optical elements each having geometrical surface features, a method of manufacturing an element that includes a plurality of replicated structures is provided. The method comprises the steps of providing an element substrate, of replicating, by embossing, a surface of a tool element, which surface comprises a negative copy of the geometrical surface feature, into replication material disposed at a first place on a surface of the element substrate, of subsequently hardening the replication material, of replicating said surface of the tool element into replication material disposed at a second place on said substrate, of hardening said replication material, the method comprising the further step of subsequently filling a gap between replication material disposed at the first place and replication material disposed at the second place by filler material. | 03-25-2010 |
| 20110024030 | MANUFACTURING OPTICAL ELEMENTS - A method includes the steps of: providing a substrate; providing a tool having, on a replication side, a plurality of replication sections, each replication section defining a surface structure of one of an optical element(s), the tool further including at least one contact spacer portion, the contact spacer portion protruding, on the replication side, further than an outermost feature of the replication sections; aligning the tool with a feature of the substrate and bringing the tool and a first side of the substrate together, with replication material between the tool and the substrate, the contact spacer portion contacting the first side of the substrate, and thereby causing the spacer portion to adhere to the first side of the substrate, thereby producing a substrate-tool-assembly; dislocating the substrate-tool-assembly to a hardening station; causing the replication material to harden at the hardening station; and separating the tool from the substrate with the hardened replication material adhering to the substrate. | 02-03-2011 |
