Abstract: A zoom lens control mechanism includes a lens barrel with a lens group arranged in advance therein, a lens barrel support portion for the lens barrel seated on, a guiding device and a driving device. The lens barrel has three cylinders with the same center, and each of the cylinders has a post disposed at the bottom edge thereof and arranged with the imaginary center of the cylinders on the same line. Each of the cylinders except the innermost cylinder further has an elongated slot extended along the outer surface thereof. The guiding device is received in the two elongated slots and fixed on the innermost cylinder for leading the cylinders of the lens barrel moving relatively along the optical axis in the range of the allowable deviation. The lens barrel support portion includes three protruding cylinders which have the same center thereof for mating with the corresponding cylinders of the lens barrel.

Abstract: A zoom lens control mechanism includes a lens barrel with a lens group arranged in advance therein, a lens barrel support portion for the lens barrel seated on, a guiding device and a driving device. The lens barrel has three cylinders with the same center, and each of the cylinders has a post disposed at the bottom edge thereof and arranged with the imaginary center of the cylinders on the same line. Each of the cylinders except the innermost cylinder further has an elongated slot extended along the outer surface thereof. The guiding device is received in the two elongated slots and fixed on the innermost cylinder for leading the cylinders of the lens barrel moving relatively along the optical axis in the range of the allowable deviation. The lens barrel support portion includes three protruding cylinders which have the same center thereof for mating with the corresponding cylinders of the lens barrel.

Abstract: This invention relates to a method for aligning an image sensor, comprising the steps of providing a circuit substrate and an image sensor, providing a device for aligning the image sensor with the circuit substrate, and assembling the circuit substrate, the image sensor and the device so as to maintain the preciseness and consistency of the assembly of the image sensor and the circuit substrate. Furthermore, a device for aligning an image sensor comprises a frame having a receptacle and an opening at the center thereof. The image sensor is received within the receptacle. The peripheral dimension of the image sensor is smaller than that of the opening so that the image sensor is confined in the opening. The alignment device insures the desired assembly of the image sensor and the circuit substrate.