LIGHT-RECEIVING UNIT AND IMAGE PICKUP DEVICE

PROBLEM TO BE SOLVED: To allow photoelectric conversion elements to receive multi-color light while suppressing the decrease in quantity of light incident on each photoelectric conversion element per unit time.SOLUTION: A light-receiving unit comprises: a color filter part having a plurality kinds of color filters arrayed on a flat plane and allowing light of different wavelength regions to go through themselves; an image pickup device having a plurality of photoelectric conversion elements each receiving light of the wavelength region having passed through one color filter of the plurality of color filters, which is located at a corresponding position; displacement parts each operable to relatively displace the color filter part in units of an interval of the color filters with respect to the image pickup device in a direction along the plane where the plurality of color filters are arrayed; and a control part operable to control the displacement parts, to expose the image pickup device to light in a state in which the color filter part is located at a first position, and a state in which the color filter part is present at a second position to which the color filter part is displaced from the first position, and to read out signals obtained by the plurality of photoelectric conversion elements each time the image pickup device is exposed to light.SELECTED DRAWING: Figure 2 【課題】単位時間あたりに各光電変換素子に入射する光量の低下を抑制しつつ、光電変換素子に多色の光を受光させること。【解決手段】受光ユニットは、互いに異なる波長域の光を透過させる複数種類のカラーフィルタが平面上にそれぞれ複数配置されたカラーフィルタ部と、それぞれ複数のカラーフィルタのうち対応する位置にある１つのカラーフィルタが透過した波長域の光を受光する複数の光電変換素子を有する撮像素子と、複数のカラーフィルタの配置面に沿う方向に、撮像素子に対してカラーフィルタ部をカラーフィルタの配置間隔単位で相対的に変位させる変位部と、変位部を制御してカラーフィルタ部が第１位置にある状態とカラーフィルタ部が第１位置から変位した第２位置にある状態とでそれぞれ撮像素子を露光し、撮像素子を露光する毎に複数の光電変換素子で得られた信号を読み出す制御部とを備える。【選択図】図２