An apparatus and method for photodynamic therapy or photodynamic diagnosis using an illuminator comprising a plurality of light sources generally conforming to a contoured surface and irradiating the contoured surface with substantially uniform intensity visible light. The light sources may comprise...http://www.google.com.tw/patents/US6223071?utm_source=gb-gplus-share專利 US6223071 - Illuminator for photodynamic therapy and diagnosis which produces substantially uniform intensity visible light
