Title:
【発明の名称】自動焦点調節レンズ
Document Type and Number:
Japanese Patent JP3026577
Kind Code:
B2
Inventors:
Hitoshi Tanaka
Application Number:
JP3700390A
Publication Date:
March 27, 2000
Filing Date:
February 17, 1990
Export Citation:
Assignee:
Asahi Optical Co., Ltd.
International Classes:
G03B13/36; G02B7/08; G02B7/09; (IPC1-7): G02B7/09
Domestic Patent References:
| JP6442615A | ||||
| JP5567716A | ||||
| JP58195207U | ||||
| JP53140446U | ||||
| JP3922078B1 | ||||
| JP437329Y1 |
Attorney, Agent or Firm:
Takashi Matsuura