High definition machine vision camera lens
The utility model provides a high definition machine vision camera lens, include along focusing group and fixed group that the optical axis was arranged from the object space to the image space in proper order, focusing group is including first lens, second lens, third lens, fourth lens, the 5th len...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Online-Zugang: | Volltext bestellen |
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| Zusammenfassung: | The utility model provides a high definition machine vision camera lens, include along focusing group and fixed group that the optical axis was arranged from the object space to the image space in proper order, focusing group is including first lens, second lens, third lens, fourth lens, the 5th lens and VI lenses, first and the 5th lens, the biconvex lens, its focal power is for just, second lens, convex surface are towards the object space, and the concave surface is towards the image space, and its focal power is for just, the third lens, the convex surface is the burden towards object space, concave surface towards image space, its focal power, the fourth lens, the biconcave lens, its focal power is the burden, VI lenses, concave surface be towards the object space, and the convex surface is towards the image space, and its focal power is for just. The combined focal length ft of focusing group and the focus fg of fixed group satisfy following condition with the focus f of whole camera lens respectively: |
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