Lens assembly
The present invention relates to a lens assembly, which sequentially includes a focus lens group, a zoom lens group, a grating and a compensation lens group. The focus lens group is immovable and comprises a first lens. The zoom lens group is movable and sequentially comprises a second lens, a third...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The present invention relates to a lens assembly, which sequentially includes a focus lens group, a zoom lens group, a grating and a compensation lens group. The focus lens group is immovable and comprises a first lens. The zoom lens group is movable and sequentially comprises a second lens, a third lens, a fourth lens, and a fifth lens. The distances between each two of the second lens, the third lens, the fourth lens and the fifth lens are fixed. The grating is attached to the second lens. The compensation lens group is immovable and sequentially comprises a sixth lens and a seventh lens. In this way, the lens assembly can be fixed within the total length of 20 mm, and can reach a 3x optical zooming. |
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