| 摘要 |
A catheter according to the present invention can increase a photographing range by extending the angle of view of plastic optical fiber by making a slope the front surface of a tube with exposed plastic optical fiber, and thereby, performing a more rapid and accurate test. Also, a polishing process is performed on the slope to form a convex shape, thereby extending the angle of view. Also, a wide-angle function is carried out without attaching a separate wide-angle lens, thereby simplifying structure, saving costs, and improving durability and stability. |
