| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a portable clock system containing an user-friendly ultraviolet light sensor to accurately gain ultraviolet light intensity. <P>SOLUTION: The portable clock system 1 comprises a control circuit unit 11 on storage space of its housing, a display unit 12, a memory unit 13, an input unit 14, a clock unit 15, a battery 16, an ultraviolet light sensing unit 17, and a time intensity accumulator 18. It is provided with both ultraviolet light sensing and warning functions capable of detecting and displaying ambient ultraviolet light intensity and accumulated intensity. <P>COPYRIGHT: (C)2004,JPO |
