Title:
ENDOSCOPIC VIDEO CAMERA WITH MAGNETIC DRIVE FOCUSING
Document Type and Number:
Japanese Patent JP3856721
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a magnetic drive focusing device having at least one lens at the inside of a chamber and having an adjuster with a magnet at the outside of the chamber.
SOLUTION: A second sleeve having a spiral guide path exists between the lens and the chamber. When the adjuster is moved at the outside of the chamber, the lens at the inside of the chamber is moved by a magnetic field at the inside of the chamber. When the lens is rotated, the lens is moved in an axial direction at the inside of a device by a non-magnetic guide provided at the inside of the spiral guide path.
Inventors:
Thomas Jay Anhalt
Application Number:
JP2002114487A
Publication Date:
December 13, 2006
Filing Date:
April 17, 2002
Export Citation:
Assignee:
KARL STRUTZ IMAGING INC.
International Classes:
G02B7/04; G02B23/24; A61B1/00; A61B1/04; (IPC1-7): G02B7/04; G02B23/24; //A61B1/04
Domestic Patent References:
| JP5281454A | ||||
| JP62276522A | ||||
| JP8166530A | ||||
| JP622221A | ||||
| JP5034556A | ||||
| JP62002222A | ||||
| JP2002189162A |
Attorney, Agent or Firm:
Takehiko Saito
Yasuyuki Hata
Yasuyuki Hata