Patent ID: 7241306
Filing Date: 2007-07-10
Classification: A61N,C09K,H01J

Abstract:
1. A narrow-band UV-B phototherapeutic device for treating an area requiring treatment by irradiating narrow-band UV-B, comprising: a light source unit that includes a fluorescent lamp of planar structure, said fluorescent lamp being an ultraviolet ray source for emitting narrow-band UV-B; a power supply for causing said fluorescent lamp to emit light; and a control unit for controlling light emission of said fluorescent lamp; wherein said fluorescent lamp of planar structure comprises: a first substrate that is a flat plane in shape and that is permeable to ultraviolet rays; a second substrate that is a flat plane in shape and that confronts said first substrate across an interposed gap; a discharge chamber that is formed by hermetic sealing of perimeters of said first substrate and said second substrate; a discharge medium gas that is charged in said discharge chamber; and a pair of electrodes that are both provided on said second substrate for causing discharge inside said discharge chamber; wherein a cooling device for cooling said fluorescent lamp is provided on an external side of said second substrate.