Zoom lens
In a zoom lens comprising, from the object side to the image side, a front lens group and a controllable lens group, the controllable lens group comprises two lens elements having different dispersions and being movable with respect to each other so as to perform a focusing action. One of the lens e...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | In a zoom lens comprising, from the object side to the image side, a front lens group and a controllable lens group, the controllable lens group comprises two lens elements having different dispersions and being movable with respect to each other so as to perform a focusing action. One of the lens elements corrects for the dispersion of the zoom lens. Preferably, the zoom lens comprises at least one folding mirror. |
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