To provide a surgical microscope and method for observing an object within an observation area during an operation, and a retrofit kit for the surgical microscope, which solve the problem in which solution means by conventional arts has an observation direction lacking flexibility, it is likely to need pre-operation planning, and it is likely to be expensive and bulky.SOLUTION: A surgical microscope of the present invention overcomes a disadvantage by at least one optical stand for variably deflecting an observation axis of an optical observation assembly toward an optical visual axis pointing at an observation area direction. The optical stand includes at least one optical beam deflector, and is arranged between the optical observation assembly and the observation area. A method of the present invention includes the steps of: variably deflecting the observation axis of the optical observation assembly toward the optical visual axis pointing at the observation area direction； causing light generated from the observation area to propagate substantially along the optical visual axis and observation axis； and causing the light to be image-formed via the optical observation assembly.SELECTED DRAWING: Figure 2【課題】本発明は、手術中に観察領域内の物体を観察するための手術用顕微鏡および方法、ならびに手術用顕微鏡のためのレトロフィットキットに関する。従来技術による解決手段は、柔軟性に欠く観察方向を有し術前のプラニングが必要になる可能性があり、かつ高価で嵩張る可能性がある。【解決手段】本発明の手術用顕微鏡は欠点を、光学観察アセンブリの観察軸を観察領域の方向を指す光学視軸に向けて可変に偏向するための、少なくとも１つの光学台によって克服している。この光学台は、少なくとも１つの光学ビーム偏向器を含み、光学観察アセンブリと観察領域との間に配置されている。本発明の方法は、光学観察アセンブリの観察軸を観察領域の方向を指す光学視軸に向けて可変に偏向するステップと、観察領域から生じた光を光学視軸および観察軸に実質的に沿って伝播させ、この光を、光学観察アセンブリを介して結像させるステップと、を含む。【選択図】図２
