Measuring distance from object by using size of pattern projected onto object
US9784577B2 · kind B2 · utility
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15References
9Claims
0Family size
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Key dates
| Filing date | Mar 15, 2013 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Nov 1, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C3/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for measuring a distance can include a camera module and a film having a reference pattern. The camera module can include an infrared LED transmission unit to transmit an infrared LED light toward the film and a module unit calculating a distance from an object by using a size of a pattern projected onto the object which is obtained from an image of a camera unit. The film can include an infrared film and a plurality of holes formed in the infrared film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.