Sheet height sensor using movable and stationary mirrors
US9341466B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2014 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Dec 4, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/0691
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Apparatuses include a conveyor moving in a processing direction, a print head positioned adjacent the conveyor, a light source positioned adjacent a first side of the conveyor, a movable mirror positioned adjacent a second side of the conveyor, that is across the conveyor from the first side of the conveyor, a fixed mirror positioned adjacent the first side of the conveyor (the fixed mirror is between the light source and the print head), and a light sensor position adjacent the second side of the conveyor. The light sensor is between the movable mirror and the print head. The light source outputs light to the movable mirror across the conveyor, the movable mirror directs the light back across the conveyor to the fixed mirror, and the fixed mirror directs the light again across the conveyor to the light sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.