Abstract: A zooming camera module includes a first lens group, a second lens group, and a third lens group. The first lens group is implemented on an optical axis at a fixed position, and has a negative total optical power. The second lens group is implemented on the optical axis and can be moved back and forth along the optical axis, to achieve zooming and focusing. The second lens group has a positive total optical power, and includes a liquid lens unit and at least one lens with non-zero optical power, wherein the at least one lens and the liquid lens are separately or integrally configured. The third lens group is implemented on the optical axis at a fixed position, and has a non-zero total optical power.

Abstract: An optical imaging system with extended depth of focus is provided. The optical imaging system includes an optical imaging module, an array type detector and an image restoration module. The optical imaging module has a specific longitudinal spherical aberration corresponding to the depth of focus. The array type detector is coupled to the optical imaging module to obtain a image via the specific longitudinal spherical aberration provided by the optical imaging module. The image restoration module is coupled to the array type detector, wherein the array type detector converts the obtained image to a digitalized image and the image restoration module receives the digitalized image and performs an image restoration operation to the digitalized image to form an image with extended depth of focus.

Abstract: An auto-focusing lens module includes an object lens, a liquid zooming unit, and an image lens group. The object lens and the liquid zooming unit receive an object image in front and condense the image into a first-stage output light. A zoom quantity is determined by an external control on the liquid zooming unit. The image lens group including a first and second lens receives the first-stage output light to transmit a second-stage output light. The first lens has a first and second surface, in which the second surface is farther than the first surface to the liquid zooming unit and has a convex curving surface protruding toward an image sensor. The second lens has a first and second surface, in which the first surface has a concave curving surface indenting toward the image sensor to adapt at least a portion of the convex curving surface of the first lens.

Abstract: An image restoration method is disclosed. The method is used in an image restoration apparatus and configured to restore an image captured by an imaging system. The method includes capturing a scenery image by the imaging system and applying restoration processing to the scenery image using a plurality of restoration filters respectively corresponding to a plurality of depths, to generate a plurality of restored images respectively corresponding to the depths.

Abstract: A method and optical apparatus are utilized not only to increase the degree of the similarity of the point spread functions of different fields of view, but also to maintain the degree of the difference of point spread functions which are along the optical axis of the optical apparatus. Using the degree of the difference of on-axis point spread functions, the depth information of scenery can be extracted.

Abstract: A method and an apparatus for designing an image restoration filter and a method and an apparatus for restoring an image by using the image restoration filter are provided. A test image is captured by an imaging system to obtain image information of the test image. The image restoration filter is then calculated according to original image information of the test image and the image information obtained by the imaging system through a numerical method, such that the obtained image information after being processed by the image restoration filter has a better similarity to the original image information. Thereafter, an image captured by the imaging system is processed by using the image restoration filter as a kernel, so as to resolve the problems of image blur and distortion caused by the optical path and the imaging system.

Abstract: A method for designing computational optical imaging system, including a step for setting a target; a step for designing an optical module; and a step for designing an image restoration module; wherein by using the similarity and blur minimization of the optical module and the image restoration module to gather the optimization judgment standard, the step for designing an optical module and the step for designing an image restoration module operate individually synchronously or in sequence, and by a software product to design an optical imaging system so as to reduce the quantity and time of calculation and save repairing costs.

Abstract: A method for designing and manufacturing lens modules includes selecting design parameters from a design database stored with the design parameters suitable for a lens module desired to be manufactured to design the lens module according to characteristics of the lens module and storing the design parameters of the lens module in an analysis database, analyzing the lens module based on a predetermined analysis process to generate analysis parameters corresponding to the lens module and storing the generated analysis parameters in the analysis database, and re-designing the lens module based on the analysis parameters stored in the analysis database.

Abstract: A method for designing and manufacturing lens modules includes selecting design parameters from a design database stored with the design parameters suitable for a lens module desired to be manufactured to design the lens module according to characteristics of the lens module and storing the design parameters of the lens module in an analysis database, analyzing the lens module based on a predetermined analysis process to generate analysis parameters corresponding to the lens module and storing the generated analysis parameters in the analysis database, and re-designing the lens module based on the analysis parameters stored in the analysis database.

Abstract: A zoom lens formed in a small size adaptable to a thin and portable device, having three lens groups, including, from the object plane to the image forming plane: a first lens group with a negative power, a second lens group with a positive power and a third lens group with a positive power. By controlling the ratio of the focal length of the second lens group and the focal length of the tele-photo end, image distortion may be controlled, and the total length of the lens may be reduced to shrink the size of the lens. Hence production costs may be reduced, which is important to mass production.

Abstract: The present invention relates to a zoom lens assembly employing a four lens group design, which in sequence from an object end thereof to an image end thereof has a first lens group having a positive focal length; a second lens group having a negative focal length; a third lens group having a positive focal length; and a fourth lens group having a positive focal length. In the course of zooming, the third lens group moves serving as a light collector and an assisting compensator for the fourth lens group, so that the diameter of the elements behind the diaphragm can be decreased, which in turn decreases the total length and diameter of the overall zoom lens assembly, meeting the demands of miniaturization of zoom lens assembly without compromising image quality into consideration.

Abstract: A zoom lens formed in a small size adaptable to a thin and portable device, having three lens groups, including, from the object plane to the image forming plane: a first lens group with a negative power, a second lens group with a positive power and a third lens group with a positive power. By controlling the ratio of the focal length of the second lens group and the focal length of the tele-photo end, image distortion may be controlled, and the total length of the lens may be reduced to shrink the size of the lens. Hence production costs may be reduced, which is important to mass production.

Abstract: A zoom lens for digital image capturing apparatus is a shared lens of digital static cameras and digital video cameras. It contains three lens groups. From the object plane to the image plane, the first lens group has a negative refractive power, the second lens group has a positive refractive power, and the third lens group has a positive refractive power. As the focal length of the zoom lens changes from long (telescope) to short (wide-angle), the second lens group moves from the object plane to the image plane. The third lens group and the first lens group move with the second lens group.

Abstract: A zoom lens for digital image capturing apparatus is a shared lens of digital static cameras and digital video cameras. It contains three lens groups. From the object plane to the image plane, the first lens group has a negative refractive power, the second lens group has a positive refractive power, and the third lens group has a positive refractive power. As the focal length of the zoom lens changes from long (telescope) to short (wide-angle), the second lens group moves from the object plane to the image plane. The third lens group and the first lens group move with the second lens group.