Abstract: A simple focusable lens combination of a camera including a housing formed with a lens hole. A photosensor and a base board are disposed in the housing. The base board is movably disposed in the housing. Multiple lenses with different focal lengths are disposed on the base board. By means of moving the base board, one of the multiple lenses is selected to aim at the lens hole for focusing images of different distances onto the photosensor.

Abstract: A simple focusable lens combination of a camera including a housing formed with a lens hole. A photosensor and a base board are disposed in the housing. The base board is movably disposed in the housing. Multiple lenses with different focal lengths are disposed on the base board. By means of moving the base board, one of the multiple lenses is selected to aim at the lens hole for focusing images of different distances onto the photosensor.

Abstract: A CCD and CMOS image pickup module including a circuit main board on which an image sensor (CMOS, CCD) and relevant electronic elements are laid. A lens seat is disposed on an upper edge of a package of the image sensor. The lens seat has an image pickup cylinder correspondingly positioned above a coupling transistor of the image sensor. The lens seat covers and encloses the image sensor with the connecting section of the bottom of the image pickup cylinder sealedly attaching to the periphery of the top face of the package of the image sensor. With the profile of the outer periphery of the package of the image sensor serving as a normal standard for the axis of the lens, the axis of the lens being projected onto the sensor center of the coupling transistor.

Abstract: A lens assembly including a lens seat and a lens holder. A lens is disposed on the lens seat. Another lens is inlaid in the lens holder. The lens holder is slidably disposed in a receptacle of the lens seat. An electromagnetic coil is disposed around the circumference of the lens seat. The lens holder is made of magnetic conductive material. After the coil is powered on, the coil creates a magnetic force to push and move the lens holder and change the distance between the lenses and thus adjust the focal length of the lens assembly. A resilient member is disposed between the lens holder and the lens seat for resiliently pushing and restoring the lens holder.

Abstract: A passive control system for taking a three dimensional picture comprises a 2D-3D converting device, and a rotary disk apparatus. The 2D-3D converting device at one end thereof connects with a digital picture taking apparatus via a shift interface and at the other end thereof connects with a data processing center. The 2D-3D converting device provides a preset program to regulate the digital picture taking apparatus with a start of scanning at a preset time. The rotary disk apparatus provides a positioning interface to connect with a rotary disk thereof and the rotary disk is able to stay in place after turning a preset angular displace in accordance with the preset program. An object to be taken a picture is placed on the rotary disk and is taken a picture by the digital picture taking apparatus as soon as the rotary disk is turned the preset angular displacement once.