| 摘要 |
PURPOSE: A camera module is provided to prevent fluid impurities and sessile impurities such as burrs from transferring to an infrared cutoff filter arranged under a lens holder. CONSTITUTION: A camera module comprises a base(10), a bobbin(20), a lens holder(30), and an impurity blocking unit. The base is installed in the upper part of a PCB, where an image sensor is mounted, and includes an infrared cutoff filter(11) installed in a position corresponding to the image sensor. The bobbin is installed in the upper part of the base to reciprocate, and includes a screw thread(21) in the inner periphery of the bobbin. The lens holder includes a lens holder screw thread(31) in the outer periphery of the lens holder, and one or more lenses(33). The impurity blocking unit is formed in a screw-joined portion of the bobbin and lens holder, and prevents fluid impurities and sessile impurities generated when screw-joining the bobbin and the lens holder from being transferred to the infrared cutoff filter. |
