Distance acquisition device, lens correcting system and method applying the distance acquisition device
US8718330B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2011 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Apr 6, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S11/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A distance acquisition device is for acquiring a first rounded distance from a reference point to a basis point, and for subsequently acquiring a second rounded distance from an adjacent point to the basis point. The reference, adjacent, and basis points are disposed on a plane. The adjacent point is adjacent to the reference point. The distance acquisition device includes: a reference distance acquisition unit for acquiring a precise distance from the reference point to the basis point, and for subsequently performing rounding upon the precise distance so as to obtain the first rounded distance; a reference error acquisition unit for obtaining a first reference error corresponding to a difference between the precise distance and the first rounded distance; and a distance estimating unit for setting the second rounded distance based on the first rounded distance and the first reference error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.