| 摘要 |
The casing of the camera module is composed of at least two housings. In the opening part of the first housing for attaching the object side fixed lens is formed an annular formation extending radially inwardly to support the fixed lens. The annular formation has protruded portions protruding inwardly. A lens moving mechanism including a cylindrical cam and moving lens holders are incorporated in the casing. The lens holders each has a cam follower arm which contact the corresponding cam face of the cylindrical cam, the movement of each of the lens holders being defined by the cam face, and supporting arms fitted slidably to guide shafts for guiding the lens holders in the direction of the optical axis. One of the lens holders has depressed portions to correspond to the protruded portions of the annular formation in order to allow the lens holder to advance into the space surrounded by the annular formation without interfering with the protruded portions of the annular formation whereby the lens holder can come near to the fixed lens. A driving motor for rotating the cylindrical cam is bonded to the second housing. The casing defines a plurality of openings to be covered after assembling. Assembling and adjustment of the lens moving mechanism, etc. can be performed with ease. A small and lightweight camera module can be constructed, and a user-friendly portable terminal equipped with the camera module can be provided.
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