A kind of laser accunputure light field changing device is suitable for treating a position to be treated using light, and includes: dimming source, a columnar smooth conducting piece, Ji Yiguang adjustment part together. The light conducting piece includes an incidence surface, a light-emitting surface and one from the incidence surface periphery towards the envelope surface of light-emitting surface extension connection. Wherein one side of the light adjustment part in incidence surface, the light-emitting surface and envelope surface three of the light conducting piece, and the micro-structure with several tool optical diffraction properties. The light of the people having the same aspiration and interest light source can be projected via the incidence surface of the light conducting piece toward the light-emitting surface direction, and light by the light adjustment part this etc. micro-structures Hou can be changed Energy distribution Hou and project again. By the cooperation of said elements, it can produce x-ray diffraction effect, reach light beam integer effect, and keep light uniform.一種光針光場調變裝置，適用於利用光來對一待治療部位進行治療，並包含：一同調光源、一柱狀的光傳導件，及一光調整件。該光傳導件包括一入光面、一出光面，以及一自該入光面周緣朝該出光面延伸連接的圍面。該光調整件鄰近該光傳導件的該入光面、該出光面與該圍面三者中的其中一面，並具有數個具光學繞射性質之微結構。該同調光源的光線可經由該光傳導件的入光面往該出光面方向射出，且光線通過該光調整件的該等微結構後可被改變能量分布後再射出。藉由上述元件之配合，可產生光繞射作用，達到光束整型效果，並使光線均勻。
