Title:
【発明の名称】可変焦点レンズ系のバックフォーカス調節装置
Document Type and Number:
Japanese Patent JP3090931
Kind Code:
B2
Inventors:
Atsuro Yajima
Naoyuki Fujimori
Naoyuki Fujimori
Application Number:
JP14242089A
Publication Date:
September 25, 2000
Filing Date:
June 05, 1989
Export Citation:
Assignee:
Nitto Optical Co., Ltd.
International Classes:
G03B3/02; G02B7/04; G02B7/28; G03B13/32; G03B17/02; G03B17/12; (IPC1-7): G03B3/02; G02B7/04; G03B13/32; G03B17/02; G03B17/12
Domestic Patent References:
| JP6442614A | ||||
| JP6438611U | ||||
| JP55105407U |
Attorney, Agent or Firm:
Minoru Nakamura (7 outside)