专利检索 ap:("Masataka Hamada" OR "Masayuki Ueyama" OR "Kenji Ishibashi" OR "Hiroshi Oosuka") AND inv:"Hiroshi Oosuka" 第 1 页

1.

发明授权
Camera having learning function 失效

公开(公告)号：US5374984A

公开(公告)日：1994-12-20

申请号：US145510

申请日：1993-11-04

申请人： Masataka Hamada , Masayuki Ueyama , Kenji Ishibashi , Hiroshi Oosuka

发明人： Masataka Hamada , Masayuki Ueyama , Kenji Ishibashi , Hiroshi Oosuka

IPC分类号： G02B7/10 , G03B7/08 , G03B5/00 , G03B7/097

CPC分类号： G03B7/0807

摘要： A camera according to the present invention comprises a taking lens whose focal length is variable. A focal length thereof is determined based on a subject distance measured by a distance measuring circuit and a relation between a subject distance and a focal length previously stored in a memory or according to a manual operation. The relation stored in the memory is changed based on a focal length determined.