| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an optical system that acquires a light field, is compact and reduces the effects of pupil variations.SOLUTION: The optical system has, in order from and object side to an image side, an objective optical system (101) having a positive angular magnification, and a plurality of imaging optical systems (102a-102j) two-dimensionally arranged. When a focal length of one of the plurality of imaging optical systems is defined as f, and a focal length of the objective optical system is defined as f, the condition of the following formula is satisfied.</p> |
