Solar radiation filter and reflector device and method of filtering and reflecting solar radiation
US4674823A · kind A · utility
5Cited by
11References
37Claims
0Family size
Inventor
Key dates
| Filing date | Jun 21, 1984 |
| Grant date | Jun 23, 1987 |
| Priority date | — |
| Expiry date | Jun 21, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/0667
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Radiation filter and reflector device and method which filters certain bandwidths and reflects the transmitted bandwidths of incident radiation, in particular solar radiation. In a preferred embodiment of the device, it filters ultraviolet light below 320 nanometers and reflects all other wavelengths of sunlight. The preferred embodiment of the method comprises the steps of filtering ultraviolet light below 320 nanometers and reflecting all other wavelengths of sunlight. Both device and method provide the user with an effective sunscreen for preventing sunburn while affording tanning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.