专利内容由知识产权出版社提供
专利名称：Optical apparatus having a focus detecting
device with decentration position detection
发明人：Kazuhiko Momoki申请号：US08/677354申请日：19960705公开号：US05698841A公开日：19971216
摘要：An optical apparatus provided with a light receiving device for receiving lightdistributions from light beams passed through different portions of a pupil of a mainimaging lens, a focus state detecting device for detecting the focus state of the mainimaging lens from the positional relation between the light distributions received by thelight receiving device, a decentration position detecting device for detecting thedecentration position of a decenterable lens provided in the main imaging lens, amemory for memorizing inherent data of the main imaging lens which should correct thefocus state detection output at each decentration position, and a calculating device forcalculating the amount of movement of a focusing lens for focusing by the use of theinherent data read out from the memory conforming to a signal from the decentrationposition detecting device and the focus state detection output.
申请人：CANON KABUSHIKI KAISHA
代理机构：Fitzpatrick, Cella, Harper & Scinto
更多信息请下载全文后查看
