| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a capsule endoscope which has attained miniaturization, wider angle, and wider light distribution. <P>SOLUTION: The capsule endoscope comprises: object lenses 4; transparent domes 2 covering the respective object sides of the object lenses 4; and light emitting elements 5 disposed on the peripheral portions of the object lenses 4. In the capsule endoscope, the two object lenses 4 are arranged one behind the other, the transparent dome 2 is arranged so as to cover the objective side of the object lenses 4, and the light emitting elements 5 are arranged on the peripheral portions of the object lenses 4. The light emitting elements 5 disposed one behind the other are arranged in positions receding from the respective leading ends of the object lenses 4 and obliquely outward with respect to the respective central axes of the object lenses 4, so that light rays distributed by the light emitting elements 5 intersect at the front and back on the peripheries. <P>COPYRIGHT: (C)2012,JPO&INPIT |
