| 摘要 |
<p>The present invention discloses a non-contact optical lens height detecting system including: a body tube which is made of a ferrite material and includes one or more optical lenses; a camera which has an imaging device photographing an image inputted through the body tube; a resonance circuit which includes an inductor including a coil around the body tube and a capacitor; a sensor board which is disposed at a location facing the camera and has a detection region; and a sensor coil which is disposed within the detection region and includes a sensor coil in the form of a conducting wire having both ends coiled. The non-contact optical lens height detecting system controls an operation of a coil driver to have a first electromagnetic field generated in the sensor coil, has the resonance circuit generate energy by the first electromagnetic field, and determines the height of the optical lens based on a potential difference output from a comparator by a second electromagnetic field as autonomously emitting the second electromagnetic field by the generated energy.</p> |
