Method and an apparatus for determining the color stimulus specification of an object
US6038024A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 8, 1999 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Jan 8, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/501
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In order to determine the color stimulus specification of a translucent object under test, it is suggested to illuminate the object under test with light having different wave length bandwidth portions, or, alternatively, to subdivide the light reflected by the object under test into different wave length bandwidth portions before it is captured by an image sensor. To exactly approach a probe head to the object under test, the object under test is visualized with the help of a further image sensor. Preferably, two image sensors are used, whereby the one image sensor is used for visualizing the object under test and the other image sensor is used for determining the colorimetric data of the object under test. In this way, the color stimulus specification of the object under test can be determined very exactly. Moreover, such a method including an apparatus suitable for performing the method can be practically realized very easily.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.