arranged +--

Introduced: January 1985

Title

Titles differ between systems:

IPC: arranged + ––

CPC: arranged +--

Full Title

Full titles differ between systems:

IPC:

Optical objectives with means for varying the magnification > by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective > with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group > having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group > having an additional fixed front lens or group of lenses > arranged + ––

CPC:

Optical objectives with means for varying the magnification (anamorphotic objectives G02B13/08) > by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective > with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group (G02B15/22 takes precedence) > having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group (G02B15/177 takes precedence) > having an additional fixed front lens or group of lenses > arranged +--

No child classifications to compare. This is a leaf node in both IPC and CPC.