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Electronic endoscope

a technology of endoscope and endoscope, which is applied in the field of endoscope, can solve the problems of repeated useless image pick-up, limited image information obtained by each single image pick-up, and inability to obtain information, so as to achieve the effect of easily and accurately acquiring detailed image information over a large region

Inactive Publication Date: 2013-06-13
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0019]According to the present invention, detailed image information over a large region is acquired easily and accurately.

Problems solved by technology

Thus, when a detailed image of a diseased part or the like is acquired, the image information obtained by each single image pick-up is limited to the image of a small view field region.
This causes a possibility that information is missing at a junction part of images or that useless image pick-up is repeated.
Thus, the operation of moving the field of view is unnecessary.
Nevertheless, such an electronic endoscope is not applicable to a hole or an abdominal cavity where peristaltic motion is absent.

Method used

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  • Electronic endoscope
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Examples

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Embodiment Construction

[0126]An electronic endoscope 1 shown in FIGS. 1 to 3 has an outer shell constructed from a body part 11 and a transparent cover 13. Then, its inside is provided with: a lens holder 19 that holds an objective lens 17 for focusing object light through the transparent cover 13; a driving section 21 for moving the lens holder 19 inside the outer shell; and a solid-state imaging device 23 that receives the object light acquired through the objective lens 17 and then converts the light into an electric signal.

[0127]The body part 11 constituting a part of the outer shell is fabricated from resin material or the like having light shielding property and formed into a cylindrical shape whose one-end part 11a is closed and whose the other end part 11c is open. The closed end part (bottom part) 11a is provided with a tube-shaped battery accommodating part 11b. The battery accommodating part 11b is closed by a battery lid 27 after a power battery 25 is mounted.

[0128]That is, the electronic endo...

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Abstract

An electronic endoscope includes an outer shell that is formed in a tube shape and whose peripheral wall is provided with a transparent window part extending in an axial direction, a solid-state imaging device that is provided inside the outer shell, an objective optical system that includes an objective lens for focusing object light through the window part and that forms an image onto the solid-state imaging device, and a drive mechanism that causes the objective lens in the objective optical system to move along an axis of the outer shell. The drive mechanism includes a lens holder for supporting the objective lens, a feed screw extending along the axis of the outer shell, and a motor for driving and revolving the lens holder about the feed screw as an axis of revolution. The lens holder engages with a thread groove of the feed screw.

Description

[0001]The present application is a Continuation application of U.S. patent application Ser. No. 12 / 999,815, having a §371(c) date of Dec. 17, 2010, which was based on PCT / JP2009 / 060885 filed on Jun. 15, 2009, which is based on and claims priority from Japanese patent application Nos. 2008-157991, 2008-157992, 2008-157993, 2008-157999, 2008-158000, 2008-158002, 2008-158004, 2008-158005, 2008-158006, and 2008-158013 filed on Jun. 17, 2008, the entire contents of which is incorporated herein by reference.TECHNICAL FIELD[0002]The present invention relates to an electronic endoscope.BACKGROUND ART[0003]In an electronic endoscope described in Patent Document 1, an insert part of a small diameter is inserted into a hole or an abdominal cavity so that an objective lens attached at the tip of the insert part is directed to a diseased part or the like in the direction of insertion. Then, in this state, image information is acquired.[0004]Further, in an electronic endoscope described in Patent...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04N7/18
CPCA61B1/00172A61B1/00177A61B1/00183A61B1/00096A61B1/045H04N7/18A61B1/05A61B1/042
Inventor YAMANE, KENJI
Owner FUJIFILM CORP