Providing uniform illumination to a moving sensor
US8292399B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2010 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Mar 12, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/009
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for providing uniform or substantially uniform illumination to a field of view of a light sensing device that is moving with respect to a light source, the method comprises the steps of (a) providing an inkjet printhead to eject ink for printing; (b) providing a monitor to track the position of the light sensing device relative to the light source; and (c) providing an energy supply that provides a time-varying energy as a function of the position of the light sensing device relative to the light source in a manner that provides substantially uniform illumination from the light source toward a field of view of the light sensing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.