In-flight drop location verification system
AssigneeBoston Scientific Scimed, Inc.
InventorEyal Teichman
Life of this patent
Estimating the term…
Abstract
A system measures a location of a drop delivered by, for example, an ink-jet type applicator. An image of the drop is captured from two directions, resulting in two drop images. Only one image capturing apparatus is needed to capture the drop images. The location in three-dimensional space is determined by using the two images but only one image capturing device. The position or location information can then be used to calibrate a coating apparatus.
Claims16
A method of detecting an in-flight location of a drop in an inkjet system, the method comprising:
- ejecting a first drop from a first location, the first location having a predefined first axis coordinate and a predefined first axis threshold value associated therewith;
- capturing a first drop image of the first drop in flight;
- capturing a second drop image of the first drop in flight;
- determining a first axis coordinate of the first drop in the first drop image;
- calculating a first axis coordinate difference value between the determined first axis coordinate and the predefined first axis coordinate;
- and
- determining whether or not the calculated first axis coordinate difference value exceeds the first axis threshold value.
A computer program product for use with an inkjet system coupled to a computer, the computer program product comprising computer readable program code for causing the computer to perform a method of detecting an in-flight location of a drop in the inkjet system, the method comprising:
- ejecting a first drop from a first location, the first location having a predefined first axis coordinate and a predefined first axis threshold value associated therewith;
- capturing a first drop image of the first drop in flight;
- capturing a second drop image of the first drop in flight;
- determining a first axis coordinate of the first drop in the first drop image;
- calculating a first axis coordinate difference value between the determined first axis coordinate and the predefined first axis coordinate;
- and
- determining whether or not the calculated first axis coordinate difference value exceeds the first axis threshold value.
Dependencies are inferred from the claim text.