PROBLEM TO BE SOLVED: To provide an optical scanning observation device that is suitable for displaying a color image and suppresses power consumption by reducing the number of light emissions of light sources.SOLUTION: An optical scanning observation device 10 comprises: light sources 33R, 33G, 33B with different colors a light emission timing control part 32 an illumination optical fiber 11 for emitting light from the light sources from the tip part toward an object 100 a drive part 21 for driving the tip part of the illumination optical fiber 11 spirally a photo-detector 35 for converting the light obtained by irradiating the object with light into an electric signal and a signal processing part 37 for generating an image signal on the basis of the electric signal. The light emission timing control part 32 controls light emission timing of the light sources 33R, 33G, 33B so that an irradiation density per unit angle in the central region of the spiral scanning is smaller than an irradiation density per unit angle in the outer peripheral region, and an irradiation density of light of at least one color is different from irradiation densities of light of other colors.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】カラー画像の表示に適し、光源の発光回数を少なくして消費電力を抑制した走査型観察装置を提供する。【解決手段】光走査型観察装置10は、異なる色の光源33R,33G,33Bと、発光タイミング制御部32と、光源からの光を先端部から対象物100に射出する照明用光ファイバ11と、照明用光ファイバ11の先端部を螺旋状に駆動する駆動部21と、対象物への光の照射により得られた光を電気信号に変換する光検出器35と、この電気信号に基づいて画像信号を生成する信号処理部37とを備える。発光タイミング制御部32は、螺旋走査の中央領域における単位角度当たり照射密度が、外周領域における単位角度当たりの照射密度よりも小さく、且つ、少なくとも1色の光の照射密度が他の色の光の照射密度と異なるように、光源33R,33G,33Bの発光タイミングを制御する。【選択図】図1
