Title:
【発明の名称】プロジェクター用投影レンズ
Document Type and Number:
Japanese Patent JP3113941
Kind Code:
B2
Inventors:
Hiroshi Yamada
Application Number:
JP25871489A
Publication Date:
December 04, 2000
Filing Date:
October 05, 1989
Export Citation:
Assignee:
Fuji Photo Optical Co., Ltd.
International Classes:
G02B13/18; G02B13/24; (IPC1-7): G02B13/18; G02B13/24
Domestic Patent References:
| JP1188815A | ||||
| JP63180926A | ||||
| JP2228620A | ||||
| JP63163317A | ||||
| JP63161421A | ||||
| JP6361214A | ||||
| JP5858515A |
Attorney, Agent or Firm:
Michio Ohshima