Abstract: In a camera module having an array lens, a first lens group has at least two lenses. A second lens group has a plurality of lenses corresponding to the lenses of the first lens group, the second lens group stacked below the first lens group and interposing a spacer part therebetween. An image sensor has an imaging region where light passing through the first and second lens groups is imaged. Also, a shielding unit shields portions excluding apertures of the lenses of the first and second lens groups, the shielding unit disposed between the first and second lens groups. The camera module has a lower optical system along an optical axis for smaller size, keeps light refracted from an adjacent lens from affecting an image, blocks leakage of light for imaging and increases definition of the image through signal processing.

Abstract: An optical lens system of a mobile camera is provided. The lens optical system includes: an optical lens in which one pair of incident surfaces corresponding to the divided view angles are adjacently arranged at the center portion, optical beams incident at the divided view angles being transmitted through respective off-axis lens systems; and one pair of image sensors separately arranged under both lower portions of the optical lens to receive the optical beams transmitted through the off-axis lens systems. As one pair of the image sensors is separately arranged on both lower portions of the optical lens, the images formed in the image sensors can be easily combined. Moreover, during the combination of the image, the disparity of the images can be prevented by the narrowed distance between the incident surfaces.

Abstract: Provided an optical system having a multiple curvature lens and a method for manufacturing the same. The optical system includes an image-forming lens group, an image sensor, and an image processing unit. The image-forming lens group has one or more multiple curvature lenses each having a multiple curvature surface provided on at least one refractive surface on one side of the multiple curvature lens. The multiple curvature surface includes two or more curved surfaces of different curvatures formed in a concentric circle. The image-forming lens group also has one or more single curvature lenses arranged before or after the multiple curvature lens and having a refractive surface. The refractive surface includes a continuous curved surface of a single curvature radius formed on both sides of the single curvature lens. The image sensor senses an image formed by the image-forming lens group, and the image processing unit recovers the image sensed by the image sensor.

Abstract: The present invention provides a mobile camera optical lens system which assures a wide view angle by dividing a view angle into two or more view angles, and simultaneously achieves the thinness of the mobile camera optical lens system by providing separate off-axis lens systems respectively corresponding to the split view angles.

Abstract: The present invention relates to an optical pickup device having a phase shift mirror, which universally adopts light sources for recording on and/or reproducing from both CDs and DVDs. In the optical pickup device with double light sources for CDs and DVDs, beams can travel the optical path at maximum efficiency (e.g., transmittance for P-polarized beams and reflectance for S-polarized beams) before being incident on the phase shift mirror. Additionally, because it employs a single element PS-MR instead of a mirror and a quarter wave plate, the optical pickup device can be constructed by assembling a smaller number of parts and thus have a low cost.