Method for triggering through disc grooves and related optical analysis discs and system
US7251210B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 23, 2003 |
| Grant date | Jul 31, 2007 |
| Priority date | — |
| Expiry date | Feb 4, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/00178
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical analysis disc includes grooves defining corresponding laser-readable tracks and trigger marks that identify respective target regions on the disc. The trigger marks are implemented as a radial interruption of the grooves to thereby produce an increased reflection of a laser beam. There is also provided an optical analysis disc system including a trigger mechanism having a trigger detector adapted to detect interruptions in grooves of an optical analysis disc. A related method for triggering through interrupted grooves of an optical analysis disc includes detecting interruption in the grooves, generating an electrical reflection signal corresponding to the interruptions detected, and elaborating said reflection signal, so that to generate a trigger signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.