Abstract: A wireless radiation sensor is disclosed. The wireless radiation sensor including a radiation sensing module capable of detecting radiation and generate pulsed signals; a wireless module (which can be a passive component/high-frequency antenna) that is connected to the radiation sensing module, which is capable of transmitting the pulsed signals without signal processing, which are received by a computer for data analysis, and a power supply module that is connected to the radiation sensing module and/or wireless module (if an active transmitting module is used) to supply required electricity.

Abstract: The present invention relates to a small ultraviolet (UV) irradiation module, at least including a solar panel (or a miniature power generating device) utilizing the photo-electric effect to convert light into electricity and an ultraviolet light-emitting device receiving electricity from solar panel to emit UV light. The present invention further relates to a clothing with the solar panel attached outside to absorb light and the ultraviolet light-emitting device attached inside to irradiate the skin for its efficient stimulation of vitamin D synthesis.