Solar tracking sensor based on fiber light guidance
US11133774B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2018 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Jan 27, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/50
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A solar tracking sensor includes lens and four fibers respectively representing four directions installed in a lens barrel to serve as a fine-positioning daylighting module, and four groups of fibers installed on the side of the lens barrel to serve as a coarse-positioning daylighting module. A circuit board and four photocells are installed at the bottom of a cassette. Each photocell is connected to fine positioning fibers located in the same direction as the photocell, and is connected to coarse positioning fibers located in a direction diagonal to the direction of the photocell. By using a daylighting method of combining fine-positioning daylighting and coarse-positioning daylighting, the number of the photocells is reduced, the design of the circuit board is simplified, and costs are reduced; moreover, because the coarse-positioning daylighting module can collect sunlight in a wide-angle range, the tracking angle range of the sensor is enlarged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.