A DEVICE TO FOCUS AUTOMATICALLY IN OPTICAL LENS
The present invention relates to an automatic focus - adjusting device for an optical lens, in which the structure of a magnetic circuit is improved by changing the arrangement of a permanent magnet and the outer size of the device is reduced. The present invention has been made to solve the above-...
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| Format: | Patent |
| Sprache: | eng ; fre |
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| Zusammenfassung: | The present invention relates to an automatic focus - adjusting device for an optical lens, in which the structure of a magnetic circuit is improved by changing the arrangement of a permanent magnet and the outer size of the device is reduced. The present invention has been made to solve the above- mentioned problem occurring in the conventional art, and the object of the present invention is to provide an automatic focus-adjusting device for an optical lens, in which production cost and reliability are enhance by improving a magnetic circuit.
L'invention concerne dispositif de réglage de la focalisation automatique d'une lentille optique, dans lequel on améliore la structure d'un circuit magnétique en modifiant la disposition d'un aimant permanent et la dimension extérieure du dispositif est réduite. L'invention concerne la résolution le problème susmentionné survenant dans la technique classique, qui consiste à fournir un dispositif de réglage de la focalisation automatique d'une lentille optique, les coûts et la fiabilité de production étant améliorés par un meilleur un circuit magnétique. |
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