Impression foam digital scanner
US7895009B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2008 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Apr 2, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/1078
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
This disclosure provides for an impression scanner system having improved calibration having a housing and a calibration plate of known geometry. The calibration plate has a plurality of different shapes thereon. The system also has a radiation source for emitting radiation towards the shapes on the plate and a surface for reflecting images created by the radiation on the shapes. A sensor for receiving the images of the shapes as the plate moves relative to the housing is also provided. A processor compares known geometry of the plate to the images received by the sensor and calibrates the sensor based upon the known geometry and images to reduce system aberration and distortion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.