A kind of light path system of photo-thermal treatment,Include: a light source,To provide a light beam； One first lens group,To guide the light beam； One DMD Digital Micromirror Device,System includes a plurality of microreflection mirror elements,And the optical switch status of a plurality of microreflection mirror elements is controlled by a control device,To form a patterned beam； One grating device,Pass through the patterned beam of part,To control light-inletting quantity； One second lens,To guide the patterned beam； One reflecting mirror,To change the path of the patterned beam； And the third lens,To guide the patterned beam to a sample platform,To carry out photo-thermal treatment.一種光熱療之光路系統，包含：一光源，用以提供一光束；一第一透鏡群， 用以導引該光束；一數位微鏡裝置，係包含複數個微型反射鏡元件，並由一控制裝置控制該複數個微型反射鏡元件之光開關狀態，以形成一圖案化光束；一光柵裝置，用以使部分之該圖案化光束通過，以控制進光量；一第二透鏡，用以導引該圖案化光束；一反射鏡，用以改變該圖案化光束之路徑；以及一第三透鏡，用以導引該圖案化光束至一樣品平台，以進行光熱療。
