| 摘要 |
<p>A distance measurement device (10) is provided with an image capturing element (20) for capturing an image, a diffraction optical element (24) for diffracting a subject image, an optical system (22) for forming the subject image diffracted by the diffraction optical element (24) on the image capturing element, and a distance measurement unit (16) for measuring the distance from the image captured by the image capturing element (20) to a subject, and the distance measurement unit (16) measures the distance to the subject on the basis of the interval between diffraction figures of the subject image produced by the diffraction optical element (24) on the image captured by the image capturing element (20).</p> |
