Body Insertable Apparatus

• US 20080021281A1
• Filed: 10/31/2005
• Published: 01/24/2008
• Est. Priority Date: 11/29/2004
• Status: Abandoned Application

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Corporation
• Inventors: Fujimori, Noriyuki
• Application Number:
  US11/597,228
• Publication Number:
  US 20080021281A1
• Time in Patent Office: Days
• US Class Current: 600/160
• CPC Class Codes: A61B 1/00016 using wireless means
• CPC Class Codes: A61B 1/00096 Optical elements
• CPC Class Codes: A61B 1/041 Capsule endoscopes for imaging
• CPC Class Codes: A61B 1/0607 for annular illumination
• CPC Class Codes: A61B 1/0684 using light emitting diodes [LED]

Abstract

A plurality of LEDs 72, which includes a power unit including two electrodes 72a connected to an illuminating board 71 and includes an irradiation unit 72b formed on a top portion of the power unit, with a stair-shaped structure in which an end surface 72b1 in a longitudinal side of the irradiation unit 72b is shorter than an end surface 72a1 of the power unit, is arranged so that a longitudinal side is to be along a direction of a circumference “A” having a radius larger a field of view determined by an optical quality of the imaging lens 83, with an imaging lens 83 of an imaging unit 8 as a center. As a result, an optical flare is prevented from being generated and a capsule endoscope is downsized.

Claims

1. A body insertable apparatus comprising:

an outer case having at least one dome-shaped end portion;

an imaging unit, arranged in the outer case, that captures an image of an inside of a body into which the body insertable apparatus being inserted, and acquires an image information of the inside of the body;

an illuminating unit that includes an electrode unit provided in the dome-shaped end portion and in the periphery of the imaging unit, and an irradiation unit formed on a top portion of the electrode unit, an end surface of the irradiation unit in a longitudinal direction being constituted to be shorter than an end surface of the electrode unit, the irradiation unit providing a plurality of light emitting diodes that outputs an illuminating light for illuminating the inside of the body from which an image is captured by the imaging unit; and

an arrangement board, provided in the outer case, on which the imaging unit and the illuminating unit are arranged respectively.

2. The body insertable apparatus according to claim 1, wherein each of the light emitting diodes is arranged so that a longitudinal side of the light emitting diode is arranged along a circumferential direction with a predetermined radius having the imaging unit as a center.

3. The body insertable apparatus according to claim 1, wherein each of the light emitting diodes is arranged so that a longitudinal side of the light emitting diode is arranged along a radial direction with a predetermined radius having the imaging unit as a center.

4. The body insertable apparatus according to claim 1, wherein each of the light emitting diodes is arranged so that a longitudinal side of the light emitting diode is arranged being inclined from a radial direction with a predetermined radius having the imaging unit as a center.

5. The body insertable apparatus according to claim 2, wherein the predetermined radius having the imaging unit as a center, is set larger than a field of view determined by an optical quality of an optical system of the imaging unit.

6. The body insertable apparatus according to claim 3, wherein the predetermined radius having the imaging unit as a center, is set larger than a field of view determined by an optical quality of an optical system of the imaging unit.

7. The body insertable apparatus according to claim 4, wherein the predetermined radius having the imaging unit as a center, is set larger than a field of view determined by an optical quality of an optical system of the imaging unit.