| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a lens unit which can be manufactured using less number of parts and at low cost.SOLUTION: A lens unit includes a first lens 2, an image-side lens group 3, and a cylindrical lens barrel 4 which holds the image side lens group 3. The first lens 2 has a first threaded portion 21a and a lens pressing portion 22. The lens barrel 4 has a second threaded portion 41a which is screwed together with the first threaded portion 21a. The lens pressing portion 22 is configured to press the image-side lens group 3 held by the lens barrel 4 toward the image side relative to the lens barrel 4 while the first threaded portion 21a and the second threaded section 41a are being screwed together.</p> |
