PROBLEM TO BE SOLVED: To provide a sensitivity adjusting method and an imaging apparatus which enable observation with an excellent image quality even when primary color filters mixed with complementary color filters are used.SOLUTION: An endoscope system 1 in the present invention comprises: an image pickup device 24 including a color filter group 24a which has primary color pixels provided with primary color filters through which light beams of primary color components transmit, and complementary color pixels provided with complementary color filters having transmissivity different from the transmissivity of the primary color filters with respect to light beams of wavelength bands substantially equivalent to the primary color components which transmit through the primary color filters and an adjustment unit 33 for adjusting the light received by the image pickup device 24 in such a way that the light receiving sensitivity of the complementary color pixels becomes substantially equal to the light receiving sensitivity of the primary color pixels with respect to the same primary color components.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2016,JPO&INPIT【課題】原色カラーフィルタと補色カラーフィルタとが混合されたカラーフィルタを用いた場合であっても良好な画質による観察を可能にした感度調整方法および撮像装置を提供すること。【解決手段】本発明における内視鏡システム1は、原色成分の光を透過する原色カラーフィルタが設けられた原色画素と、原色画素カラーフィルタが透過する原色成分と略等しい波長帯域の光に対して原色カラーフィルタの透過率と異なる透過率を有する補色カラーフィルタが設けられた補色画素と、を有するカラーフィルタ群24aを有する撮像素子24と、同じ原色成分の光に対する補色画素の受光感度と原色画素の受光感度とがほぼ同等となるように撮像素子24が受光する光を調整する調整部33と、を備える。【選択図】図2
