Visual efficacy measuring method for objects in different light environments
US10746605B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 30, 2016 |
| Grant date | Aug 18, 2020 |
| Priority date | — |
| Expiry date | May 14, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a visual efficacy measuring method for objects in different light environments, which comprises: (a) setting a light environment; (b) measuring a relationship between color temperature and time; (c) a driver visually recognizing a target object; (d) resetting the light environment, and repeating the step (c); (e) processing the visual recognition information data collected by the experiments so as to establish a relationship of the visual recognition time in relation with the light environmental parameters of color temperature, color rendering index and brightness; (f) performing visual efficacy analysis according to the processing results of the visual recognition information data. The present invention also provides a color temperature standard determining method for a tunnel middle section in day time, which comprises: (a) setting a light environment; (b) measuring a relationship between color temperature and time; (c) selecting a stably distributed color temperature segment; (d) determining the color temperature standard. The method of the present invention performs visual efficacy analysis of the influence that light environment settings of ill…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.