| 摘要 |
Because of the holes in the Ozonosphere near polars of the earth, skin diseases such as skin cancers, caused by solar ultraviolet, are becoming big threats to human beings. The induction of skin cancers is mainly attibuted to absorption of too much ultraviolet everyday over many years. This invention is a device or an instrument (called as Sun UV Alarm, or Solar UV Alarm, MED Alarm, etc.) which calculates how much solar ultraviolet one's skin has already received when one is exposing to the sun, and gives alarm when too much solar ultraviolet in certain period has been received, the alarm limit may be a Minimal Erythema Dose (MED) in one day, or other limits. |
