Determining a media feature using a photovoltaic cell and an electroluminescent light panel
US7675622B2 · kind B2 · utility
1Cited by
14References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 14, 2005 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Jan 11, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/003
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention relates to an apparatus for determining a media feature, comprising: a plurality of light filters such that the filters include a media measurement aperture and a calibration aperture and wherein the filters are spaced a predetermined distance apart to allow media to be introduced between the filters; a light source located substantially adjacent to one of the filters; and a light detector located substantially adjacent to another of the filters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.