Remote distance-measurement between any two arbitrary points using laser assisted optics
US7706573B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Sep 19, 2005 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Oct 20, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C1/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The disclosed method measures the distance between two arbitrary points of interest from the user position by determining the range and angle between the two points. To measure the angle between the two points, a first method uses a micro-opto-electro-mechanical scanner to form a scan line between the two points of interest. A scan angle is determined based on the applied AC voltage needed to cause the endpoints of the scan line to coincide with the points of interest. The second method, an image-processing method, is applied to determine the angles between the points of interest. A Microprocessor uses captured images including the points of interest to determine the angle between the points. In both methods, the Microprocessor calculates the distance between the two points of interest by using the determined angle, together with the measured ranges and sends the calculated distance to a display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.