| 摘要 |
<p>Disclosed is an optical unit that can be used to implement a small, bright lens device that has a high MTF and is optimal for a fixed-focus camera, while still exhibiting the large-DOF advantage of a three-group configuration. Also disclosed is an imaging apparatus. The disclosed optical unit (100) has a first lens group (110), a second lens group (120), and a third lens group (130), arranged in that order from the object side to the image side. The first lens group (110) contains a first lens element (111), a first transparent body (112), and a second lens element (113), arranged in that order from the object side to the image side.</p> |
