发明授权
- 专利标题: Iris diaphragm for high speed photographic printers
- 专利标题(中): 虹膜光圈用于高速摄影打印机
-
申请号: US3447申请日: 1998-01-06
-
公开(公告)号: US5993079A公开(公告)日: 1999-11-30
- 发明人: Michael J. O'Brien , Richard A. Colleluori , Robert C. Bryant
- 申请人: Michael J. O'Brien , Richard A. Colleluori , Robert C. Bryant
- 申请人地址: NY Rochester
- 专利权人: Eastman Kodak Company
- 当前专利权人: Eastman Kodak Company
- 当前专利权人地址: NY Rochester
- 主分类号: G03B39/00
- IPC分类号: G03B39/00 ; G03B9/06 ; G03B27/72 ; G03B9/02 ; H02K7/02
摘要:
An iris diaphragm for selectively varying a diameter of an aperture, the iris diaphragm comprises at least two movable blades which are adaptable for forming the aperture; and a plurality of ceramic motors respectively attached to each one of the blades for causing said blades to vary the aperture formed therefrom.
公开/授权文献
- USD357824S Umbrella stand 公开/授权日:1995-05-02
信息查询