| 摘要 |
A zoom lens device comprises a zooming section including a group of focusing lenses, a group of variator lenses and a group of compensator lenses, and a relay section for focusing the light beam from the zooming section. The zoom lens device permits its zooming section alone to be interchanged with another zooming section. By fitting this other zooming section to the relay section, the zoom lens device having different magnification, and so on can be obtained. The light beam from this other zooming section is substantially equal in aberration and image forming conditions to the light beam from the original zooming section.
|
