| 摘要 |
A compact, wide angle, high magnification zoom lens in which the following lens groups are successively disposed in order from the object side: a first lens group with positive refractive power in a fixed position, a second lens group with negative refractive power; a third lens group with positive refractive power; a fourth lens group with negative refractive power; and a fifth lens group that is moved along the optical axis in order to compensate for a discrepancy of the image focal point caused by a change of magnification, wherein the second through fifth lens groups are movable along the optical axis of the zoom lens during a change in magnification.
|
