| Patent application number | Description | Published |
|---|
| 20080218875 | Zoom Lens System and Imaging Device - There is provided a zoom lens system including at least a first lens group GR | 09-11-2008 |
| 20080225405 | Image pickup apparatus and zoom lens - An image pickup apparatus includes a zoom lens including at least two movable lens groups; an image pickup element that converts an optical image formed with the zoom lens into an electric signal; and an image processor that electrically corrects a lateral chromatic aberration to be generated at the zoom lens. The zoom lens satisfies Conditional Expressions (1) and (2) as follows, | 09-18-2008 |
| 20080259464 | Zoom Lens and Image Pick-Up Apparatus - There is provided a zoom lens including broad picture angle of 60 to 100 degrees as photographic picture angle of the wide-angle end state, and having magnification ratio of about three to six times, small front gem diameter, excellent compactness and high image formation performance, which is used in video camera or digital still camera, and an image pick-up apparatus using such a zoom lens. A zoom lens ( | 10-23-2008 |
| 20080309798 | Zoom Lens System and Image Pick-Up Apparatus - There is provided a zoom lens system, compact and light in weight and having high image formation performance over the zoom entire range irrespective of object lens while covering the range from the broad angle side up to the telescopic end state side, which is used in video camera and/or digital still camera. A zoom lens system at least includes a first lens group GR | 12-18-2008 |
| 20090046382 | Lens barrel and image pickup apparatus - A lens barrel including: a shooting optical system contained in a barrel and operable to lead a subject image to an image sensor; a back focus adjustment lens group constituting a part of the shooting optical system and operable to be fixed immovably after the position of the back focus adjustment lens group is adjusted in an optical axis direction of the shooting optical system; and a back focus adjustment mechanism operable to adjust the position of the back focus adjustment lens group in the optical axis direction. The back focus adjustment mechanism of the lens barrel includes a barrel engagement member possessing plural engagement surfaces arranged in the barrel in a circumferential direction centering on the optical axis, each of the plural engagement surfaces possessing a different height in a direction parallel with the optical axis, and a lens engagement member arranged in a lens holding frame which holds the back focus adjustment lens group, the lens engagement member being operable to be selectively engaged with the engagement surfaces. The back focus adjustment lens group of the lens barrel is adjusted in position in the optical axis direction by changing the engagement surfaces with which the lens engagement member is engaged. The adjoining engagement surfaces of the back focus adjustment mechanism are formed to possess one of increasing difference in height and decreasing difference in height along the circumferential direction. | 02-19-2009 |
| 20090324207 | ZOOM LENS AND IMAGING CAPTURING DEVICE - An object is to reduce the effect of defocusing due to the movement of an image plane when a shifting lens group movable in a direction perpendicular to the optical axis for correcting hand jiggling is positionally deviated along the optical axis, thereby maintaining high optical performance at the time of correcting hand jiggling. A zoom lens | 12-31-2009 |
| 20100060993 | Zoom lens and image pickup device - Disclosed herein is a zoom lens formed by arranging a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power in order from an object side to an image side, wherein at a time of varying power from a wide-angle end to a telephoto end, the first lens group is moved, and the second lens group is moved to the object side such that an air interval between the first lens group and the second lens group is decreased and such that an air interval between the second lens group and the third lens group is increased. | 03-11-2010 |
| 20100123959 | Zoom lens and image pickup device - Disclosed herein is a zoom lens formed by arranging a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power in order from an object side to an image side, wherein at a time of varying power from a wide-angle end to a telephoto end, the first lens group is moved and the second lens group is moved to the object side integrally with a diaphragm such that an air interval between the first lens group and the second lens group is decreased and such that an air interval between the second lens group and the third lens group is increased. | 05-20-2010 |
| 20100128363 | Zoom lens and imaging apparatus - A zoom lens includes: first, second and third lens groups having negative refracting power, positive refracting power and positive refracting power, respectively, disposed in the order listed from an object side to an image side, wherein during zooming from a wide angle end to a telephoto end, the first lens group is moved and the second lens group is moved toward the object such that an air space between the first and second lens groups decreases and an air space between the second and third lens groups increases; and the first lens group is formed by first and second lenses, the first and second lenses being disposed in the order listed from the object side to the image side, and the zoom lens satisfying the following Conditional Expressions (1) and (2) | 05-27-2010 |
| 20100149657 | Zoom lens and imaging apparatus - A zoom lens includes: first, second and third lens groups having negative refracting power, positive refracting power and positive refracting power, respectively, disposed in the order from an object side. During zooming from a wide angle end to a telephoto end, the first lens group is moved and the second lens group is moved together with a stop toward the object such that an air space between the first and second lens groups decreases and an air space between the second and third lens groups increases. The second lens group includes positive and negative lenses aspherically shaped on at least a side thereof facing the object and having a convex or concave surface facing the object, the negative lens being positioned on the image side of the positive lens. The zoom lens is configured to satisfy the following Conditional Expressions (1) and (2) | 06-17-2010 |
| 20100246027 | Image capturing apparatus and optical adjustment method - An image capturing apparatus includes: at least one or more vertically movable lens groups among at least three or more lens groups, which constitute a zoom lens, movable in an optical axis direction, the vertically movable lens group being movable in a direction substantially perpendicular to the optical axis; a zoom lens group among the three or more lens groups, the zoom lens group being movable in the optical axis direction; and a correction mechanism that corrects a position of the optical axis based on the three or more lens groups by moving the vertically movable lens group in a wide-angle end state to a predetermined position in the substantially perpendicular direction. When the vertically movable lens group is moved for the purpose of anti-vibration at each zoom position in the substantially perpendicular direction, the apparatus is configured to satisfy the following Conditional Expression (1). | 09-30-2010 |
| 20100265594 | Zoom lens and imaging apparatus - A zoom lens includes a negative first lens group, a positive second lens group, and a positive third lens group; wherein, when changing power from a wide-angle end state to a tele end state, the first lens group moves such that air space between the first lens group and the second lens group decreases, and air space between the second lens group and the third lens group increases, and the second lens group moves toward the object side; and wherein the first lens group includes a negative lens with both faces formed aspherically and the concave face facing the image side, and a positive meniscus lens with at least one face formed aspherically and the convex face facing the object side, satisfying | 10-21-2010 |
| 20100322607 | Imaging lens device and imaging apparatus - An imaging apparatus and imaging lens device comprises a light path folding optical system having a reflector that folds the optical axis incident perpendicular to the gravitational direction toward the gravitational direction. An imaging element converts an image formed by the light path folding optical system into an electrical signal. A drive unit moves a shake correction lens group including at least one lens in the direction perpendicular to a vertical optical axis, the vertical optical axis being folded toward the gravitational direction by the reflector, wherein the shake correction lens group is moved in the direction perpendicular to the vertical optical axis to move the image in the direction perpendicular to the vertical optical axis. | 12-23-2010 |
