Measuring apparatus and measuring method thereof
A measuring apparatus for measuring a voice-coil-motor focusing device having a magnet holder and a coil carrier movably disposed in the magnet holder includes a current device, an image capturing device, a collimator, a half-reflecting mirror, a reflecting mirror, and an optical sensing device. The image capturing device captures images of the coil carrier during the coil carrier is driven by the current device to move transversely to calculate displacement data of the coil carrier. Light of the collimator is reflected to the coil carrier by the half-reflecting mirror and then reflected back to the half-reflecting mirror by the reflecting mirror. The optical sensing device detects light reflected by the half-reflecting mirror during the coil carrier is driven by the current device to move transversely to calculate tilt-angle data of the coil carrier.
Genius Electronic Optical Co., Ltd.
H G G H H G G G
H04N G02B G02B H04N H04N G02B G01N G02B
inventional inventional additional inventional inventional inventional additional additional
Jiun-Ping Chih-Jung Tung-Shen
Huang Chang Chen