The utility model relates to a
fluorescence imaging structure for
specimen observation, and relates to the technical field of
fluorescence imaging. Comprising a shell, a cover plate and a
fluorescence imaging mechanism, and the fluorescence imaging mechanism is arranged in an
internal cavity formed by the shell and the cover plate; the fluorescence imaging mechanism comprises an objective lens connecting plate, an objective lens fixing plate, an annular
light source mounting bracket, a multi-channel
optical filter fixing turntable, an
optical filter and a driving
assembly, the objective lens connecting plate is provided with a groove, and the objective lens fixing plate is detachably connected in the groove; the bottom end of the annular
light source mounting bracket is connected with the objective lens fixing plate, and the top end is provided with a multicolor LED annular
light source; the output end of the driving
assembly is connected with the multi-channel
optical filter fixing turntable; and the optical filters are circumferentially distributed at the edge of the multi-channel optical filter fixing turntable at equal intervals. According to a specimen marked by a dye, the rapid switching of a fluorescence imaging structure is realized through the
millisecond-level rapid automatic switching of the multicolor LED annular light source and the control of the driving
assembly on the multichannel optical filter fixing turntable.