Methods and apparatus for an optical system outputting direct light and having a sensor
US9297750B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Jan 12, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0386
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In some embodiments, an apparatus includes a housing and an image sensor that is coupled to the housing. The apparatus also includes a non-imaging optical system coupled to the housing that can output light to a surface and produce a scattered light component and a specular reflected light component. The image sensor and the non-imaging optical system are collectively configured in such a manner that during operation, the image sensor receives from a surface (1) at least a portion of the scattered light component and not the specular reflected light component or (2) at least a portion of the scattered light component having a magnitude and at least a portion of the specular reflective light component having a magnitude less than the magnitude of the portion of the scattered light component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.