| 摘要 |
PROBLEM TO BE SOLVED: To provide a method capable of observing many optical fibers simultaneously by dispensing with focusings performed in the obvserving of a multiple optical fiber in which observations are performed from directions of 45 degrees and 135 degrees normally and, however, focusings are performed while dividing the focusings into several times because the number of optical fibers to be focused is limited from the restriction of an observation lens. SOLUTION: An image sensor 40 is arranged by being inclined by a prescribed angleα(which is obtained from a drwing or the like) with respect to a virtual line 26 perpendicular to an optical axis 24. When the image sensor is arranged like this, image points of all optical fibers are made to exist on the image sensor 40 and therefor simultaneous observations are made possible. Since focusings are eliminated and the mechanism of the focusings is also eliminated, the number of parts is reduced, the cost is lowered and the reliability of a device is enhanced and also the observing time is shortened. Moreover, this method can be utilizing for the observing of single optical fibers using a mirror. |
