| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an interchangeable lens unit using a nonmetallic lens mount, capable of improving static electricity resistance while maintaining light weight and low cost.SOLUTION: An interchangeable lens unit comprises: an electronic circuit board insulated and fixed in the interchangeable lens unit; a nonmetallic lens mount mixed with a conductive material; a nonmetallic mount ring mixed with the conductive material and arranged so as to cover the periphery of the electronic circuit board; a contact block for electrically connecting the electronic circuit board with an electronic circuit board in a camera body; and a wiring member for connecting the electronic circuit board with the contact block. The ground signal of the electronic circuit board is connected with the ground terminal of the contact block via the ground line of the wiring member. The ground line is extended from the ground terminal of the contact block and the extended ground line is conducted and fixed to the nonmetallic lens mount mixed with the conductive material.</p> |
