Detecting device and laminated body manufacturing apparatus employing such detecting device
US7534989B2 · kind B2 · utility
63Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2005 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Aug 27, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/8916
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A laser beam emitted from a laser diode of each of detectors is applied to a partly cut region of a photosensitive sheet film which is spread toward the detectors by a film bending roller. Part of the laser beam which is reflected from the partly cut region is detected by an amount-of-light sensor. The laser beam that is applied to a surface of the photosensitive sheet film other than the partly cut region is reflected outside of a light-detecting area of the amount-of light sensor, and is not detected by the amount-of-light sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.