专利内容由知识产权出版社提供
专利名称：Aiming device发明人：Walter Gehmann申请号：US07/026952申请日：19870317公开号：US04856879A公开日：190815
摘要：An aiming device (diopter) has an easily removable eyepiece with adjustablediaphragm mounted on one end of a housing portion which housing portion has a cavityeccentrically formed therein. A color filter disc and two polarizing filter discs arerotatably disposed in the cavity and provided with circumferential gear structures whichare in engagement with internal gear structures formed on operating rings extendingaround the housing portion and the respective discs to move the discs relative to theviewing axis of the aiming device.
申请人：GEHMANN; WALTER
更多信息请下载全文后查看