Method, optical filter system, optical measurement device and use
AssigneeAdmesy B.V.
InventorRuud Martin Jozef Bouten
Life of this patent
Estimating the term…
Abstract
The invention is a method for manufacturing filters for an optical filter system, for manufacturing an optical filter system, and for manufacturing an optical measurement device. The system comprises a plurality of filters, and a frame holding the plurality of filters in a predefined pattern. The method comprises, per filter, the steps of: applying a plurality of coatings on a substrate to obtain a coated substrate provided with a stack of filter coatings designed for the specific spectral sensitivity of the filter, dividing the coated substrate into a plurality of portions, determining the good ones of the portions, which meet a predefined design requirement, dicing the coated substrate into the plurality of portions, and picking a good one of the portions as the filter.
Claims16
Method for manufacturing filters for an optical filter system, wherein the optical filter system comprises:
- i) a plurality of filters, each having a specific spectral sensitivity, and ii) a filter frame holding the plurality of filters in a predefined pattern;
- and
- wherein the method comprises, per said filter of a said specific spectral sensitivity, the steps of:
- applying a plurality of filter coatings on a substrate to obtain a coated substrate provided with a stack of filter coatings, which stack is designed for the specific spectral sensitivity of the respective filter,
- dividing the coated substrate into a plurality of substrate portions,
- examining the coated substrate to determine the good ones of the substrate portions, the good ones being the substrate portions where the coated substrate meets a predefined design requirement associated to the specific spectral sensitivity-of the respective filter,
- after having determined the good ones, dicing the coated substrate into the plurality of substrate portions, and
- creating a stock of the good ones of diced substrate portions by discarding the diced substrate portions which do not meet the predefined design requirement.
Method for manufacturing an optical filter system, wherein the optical filter system comprises:
- i) a plurality of filters, each having a specific spectral sensitivity, and ii) a filter frame holding the plurality of filters in a predefined pattern;
- and
- wherein the method comprises, per said filter of a said specific spectral sensitivity, the steps of:
- applying a plurality of filter coatings on a substrate to obtain a coated substrate provided with a stack of filter coatings, which stack is designed for the specific spectral sensitivity of the respective filter,
- dividing the coated substrate into a plurality of substrate portions,
- examining the coated substrate to determine the good ones of the substrate portions, the good ones being the substrate portions where the coated substrate meets a predefined design requirement associated to the specific spectral sensitivity-of the respective filter,
- after having determined the good ones, dicing the coated substrate into the plurality of substrate portions, and
- picking a said good one of the substrate portions as the filter
- wherein the method further comprises a step of configuring the filters picked and the filter frame such that the filter frame holds the plurality of filters in the predefined pattern.
Dependencies are inferred from the claim text.