发明名称 |
Diaphragm linkage device for interchangeable lens |
摘要 |
A diaphragm linkage device for interchangeable lenses wherein more than three column-shaped guide members with a groove consisting of plastic material with a small friction coefficient are provided around the optical axis of the barrel for the interchangeable lens. A diaphragm linkage ring is adapted in the grooves in such a manner that by means of the guide members the diaphragm linkage ring is carried in the direction of thrust and in the radial direction.
|
申请公布号 |
US4152064(A) |
申请公布日期 |
1979.05.01 |
申请号 |
US19760722560 |
申请日期 |
1976.09.13 |
申请人 |
CANON K K |
发明人 |
HASHIMOTO, SHIGERU;MASUDA, AKIRA;MOCHIZUKI, KATURA;ODA, TERUHISA;SATOH, AKIRA;TAKEUCHI, KOSHI |
分类号 |
G02B7/14;G03B9/06;G03B17/14;(IPC1-7):G03B9/02;G03B17/00 |
主分类号 |
G02B7/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|