| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel that makes it possible to protect an electronic circuit and electronic component incorporated by the lens barrel that does not use any metal members, from static electricity.SOLUTION: In a lens barrel 1 incorporating a circuit substrate 5 within an internal space R leading to outside through a gap d1, the circuit substrate 5 is provided with a ground pattern 52c in a position facing the gap d1. The ground pattern 52c is formed in a position outside an electronic circuit portion provided on the circuit substrate. Static electricity applied from the gap d1 to the electronic circuit portion is applied to and absorbed by the ground pattern 52c near the gap d1. Accordingly, the static electricity is prevented from being applied to the electronic circuit portion, and erroneous operation and electrostatic breakdown are prevented. |
