Smoke detector with increased scattered light intensity
US11913864B2 · kind B2 · utility
1Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 2022 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | May 18, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/0046
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is provided a smoke detector including a substrate, a light source and a light sensor. The light source and the light sensor are arranged adjacently on the substrate. The substrate is arranged with an asymmetric structure to cause an illumination region of the light source to deviate toward the light sensor thereby increasing a ratio of light intensity reflected by smoke with respect to reference light intensity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.