Compact VCSEL sensor with multiple sensing capabilities
US7129508B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 11, 2002 |
| Grant date | Oct 31, 2006 |
| Priority date | — |
| Expiry date | Oct 31, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/0068
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention includes also a sensor tat includes at least one laser, at least one detector, and at least one lens system that includes a sensor surface having three individual surfaces that are virtually the same, and an object surface having two individual surfaces that are virtually the same. The invention also includes a sensor having at least one source that produces radiation, at least one detector; and a lens system that collimates and focuses the radiation onto at least two different regions of a surface of a reflective object, wherein the reflective object reflects the incident radiation, and the lens system collimates and focuses the reflected radiation onto the detector, thereby sensing the reflective object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.