Title:
【発明の名称】fθレンズ
Document Type and Number:
Japanese Patent JP2702516
Kind Code:
B2
Inventors:
Yasushi Takahashi
Application Number:
JP20286488A
Publication Date:
January 21, 1998
Filing Date:
August 15, 1988
Export Citation:
Assignee:
Ricoh Optical Co., Ltd.
International Classes:
G02B26/10; G02B13/00; (IPC1-7): G02B13/00; G02B26/10
Domestic Patent References:
| JP59195211A |
Attorney, Agent or Firm:
Toru Kabayama (1 person outside)