An object of the present invention is to allow two images to be formed in different regions of a single image pickup device without greatly changing the focus position and to increase the depth of focus in a continuous range while suppressing an increase in the size of the entire image pickup apparatus. Of an imaging apparatus and an imaging apparatus system that can An objective optical system for imaging a light beam from an object, a single image sensor arranged near the imaging position of the objective optical system, and an objective optical system and the image sensor. A splitting element 4 for splitting the light flux from the objective optical system into two light fluxes, a reflected light flux and a transmitted light flux, a first reflecting member 6 for folding back and reflecting the light flux reflected by the splitting element, and the splitting element And a second reflecting member 7 for reflecting the light that has passed through the first reflecting member 7. The second reflecting member 7 forms an image on the first region 3 a of the imaging element through the splitting element, and the second reflecting member 7 The reflected light beam is imaged in a second region 3b different from the first region in the image sensor. [Selection] Figure 1【課題】撮像装置全体の大型化を抑えながら、１つの撮像素子における異なる領域に２つの画像を、ピント位置を大きく変えることなく結像させることができ、連続した範囲で焦点深度を拡大することが可能な撮像装置及び撮像装置システムの提供。【解決手段】物体からの光束を結像させるための対物光学系１と、対物光学系の結像位置近傍に配置された１つの撮像素子３と、対物光学系と撮像素子との間に配置され、対物光学系からの光束を反射光束と透過光束の２つの光束に分割するための分割素子４と、分割素子で反射した光束を折り返して反射させるための第１反射部材６と、分割素子を透過した光を反射させるための第２反射部材７とを有し、分割素子を介して第１反射部材で反射した光束を撮像素子における第１領域３ａに結像させ、第２反射部材で反射した光束を撮像素子における第１領域とは異なる第２領域３ｂに結像させる。【選択図】図１
