Portable device for measuring the geometry of an object and its spatially varying surface reflectance on site
US10764482B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2017 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Nov 29, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0221
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention concerns a portable device that, even for a device of small dimensions, increases the amount of the recorded imagery data of a measured object in a fixed position in order to obtain spatially varying surface reflectance data, i.e. Bidirectional Texture Function data, and the multidirectional imaging of real objects with the use of a basic three-dimensional object (2) equipped with first illumination units (4) and/or exit apertures of a light guiding system (21) in combination with multiplication of optical elements (11) contributing to the imaging on the acquisition system and/or second illumination units (9) and/or acquisition elements of the camera/detector type and/or third illumination units (12), by their placement on moveable arms (7, 8, 13) attached to the basic three-dimensional object (2). This principle is usable for small portable devices and allows for recording the visual appearance of surfaces on site without having to extract a sample from its environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.