U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Imaging apparatus for endoscopes

Patent 5876327 Issued on March 2, 1999. Estimated Expiration Date: Icon_subject September 3, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Endoscope
Patent #: 4685450
Issued on: 08/11/1987
Inventor: Collins ,   et al.

Connection device for connecting an associated unit to an eyepiece section of an endoscope
Patent #: 4697894
Issued on: 10/06/1987
Inventor: Takamura ,   et al.

Endoscope having an electrically insulated solid-state image sensing unit
Patent #: 4777524
Issued on: 10/11/1988
Inventor: Nakajima ,   et al.

Light control device for endoscope
Patent #: 4868645
Issued on: 09/19/1989
Inventor: Kobayashi

Endoscope
Patent #: 4916534
Issued on: 04/10/1990
Inventor: Takhashi, et al.

Endoscope automatic light control apparatus and endoscope apparatus making use of the same
Patent #: 4967269
Issued on: 10/30/1990
Inventor: Sasagawa, et al.

Electronic endoscope
Patent #: 4987884
Issued on: 01/29/1991
Inventor: Nishioka, ;, , , --> Nishioka, et al.

Magnetically coupled lens actuator
Patent #: 5056902
Issued on: 10/15/1991
Inventor: Chinnock, et al.

Endoscope connecting apparatus
Patent #: 5101807
Issued on: 04/07/1992
Inventor: Kawashima

Iris diaphragm device and endoscope having the same
Patent #: 5150702
Issued on: 09/29/1992
Inventor: Miyanaga, et al.

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Inventors

Assignee

Application

No. 922473 filed on 09/03/1997

US Classes:

600/112, Means for coupling camera or imager600/167, Focusing600/180, With light intensity control600/181With filter, masking, diaphram, or aperture plate

Examiners

Primary: Mancene, Gene
Assistant: Hatton, Ira

Attorney, Agent or Firm

Foreign Patent References

  • 7-234365 JP. 09/12/1995

International Class

A61B 001/06

Foreign Application Priority Data

1996-09-03 JP

Abstract

An imaging apparatus for endoscopes includes an endoscope relaying an object image through an observing optical system, and an imaging section removably mounted to the rearmost end of the endoscope, including a stop unit provided with a variable stop capable of changing an aperture size thereof, an imaging lens system, a focus lens system, and an image sensor. The relative positions of the variable stop, the imaging lens system, and the image sensor are constant, and the focus lens system can be moved along the optical axis of the imaging section. In this way, the imaging apparatus for endoscopes can be provided which is simple in structure, small in size, and low in cost.

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