Mobile device
US11003052B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2017 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Mar 21, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2215/0567
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A mobile device including: at least an imaging element; and a light-emitting device that irradiates a subject in accordance with imaging of the imaging element, in which the light-emitting device includes a semiconductor light-emitting element, and the difference of the normalized spectral power distribution at a wavelength of 580 nm and a value B representing a difference between normalized spectral power distributions in a wavelength range from 540 nm to 610 nm and a wavelength range from 610 nm to 680 nm are appropriate values. By providing a wavelength control element, it is possible to improve the color reproducibility and the like of a captured image. The mobile device achieves both sensitivity improvement and color reproducibility in a trade-off relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.