| 摘要 |
A CCD video scope is mounted in a camera head and has an image capture optical system defining an optical axis, and a half mirror with a light source offset from the optical axis and facing the half mirror, which coaxially defracts illumination light in relation to the optical axis. The resultant optical image is incident on a CCD element also lying on the optical axis. Bundled fibers are mounted between the light source and the half mirror, and have a diameter of less than 250 mu and a length of 10 times or more the diameter. The light source has a light focusing lens with an exit angle equal to or less than the maximum light incident angle of the optical fiber elements.
|
