Patent application number | Description | Published |
20080252992 | ZOOM LENS SYSTEM, IMAGING DEVICE AND CAMERA - An object is to provide: a zoom lens system that has a reduced overall length, a high resolution, and a variable magnification ratio as high as 9 or greater and that is satisfactorily adaptable for wide-angle image taking where the view angle at a wide-angle limit is 70° or greater; an imaging device employing this zoom lens system; and a thin and compact camera. The zoom lens system has a plurality of lens units each composed of at least one lens element, and, in order from the object side to the image side, comprises a first lens unit having positive optical power, a second lens unit having negative optical power, a third lens unit having positive optical power, a fourth lens unit and a fifth lens unit. In zooming from a wide-angle limit to a telephoto limit at the time of image taking, at least the first lens unit and the second lens unit move in an optical axis direction, while the fourth lens unit and the fifth lens unit are each composed of one lens element. An imaging device and a camera employ this zoom lens system. | 10-16-2008 |
20100097496 | ZOOM LENS SYSTEM, IMAGING DEVICE AND CAMERA - An object is to provide: a zoom lens system that has a reduced overall length, a high resolution, and a variable magnification ratio as high as 9 or greater and that is satisfactorily adaptable for wide-angle image taking where the view angle at a wide-angle limit is 70° or greater; an imaging device employing this zoom lens system; and a thin and compact camera. The zoom lens system has a plurality of lens units each consisting of at least one lens element, and, in order from the object side to the image side, comprises a first lens unit having positive optical power, a second lens unit having negative optical power, a third lens unit having positive optical power, a fourth lens unit and a fifth lens unit. In zooming from a wide-angle limit to a telephoto limit at the time of image taking, at least the first lens unit and the second lens unit move in an optical axis direction, while the fourth lens unit and the fifth lens unit are each consists of one lens element. An imaging device and a camera employ this zoom lens system. | 04-22-2010 |
20100097497 | ZOOM LENS SYSTEM, IMAGING DEVICE AND CAMERA - An object is to provide: a zoom lens system that has a reduced overall length, a high resolution, and a variable magnification ratio as high as 9 or greater and that is satisfactorily adaptable for wide-angle image taking where the view angle at a wide-angle limit is 70° or greater; an imaging device employing this zoom lens system; and a thin and compact camera. The zoom lens system has a plurality of lens units each consisting of at least one lens element, and, in order from the object side to the image side, comprises a first lens unit having positive optical power, a second lens unit having negative optical power, a third lens unit having positive optical power, a fourth lens unit and a fifth lens unit. In zooming from a wide-angle limit to a telephoto limit at the time of image taking, at least the first lens unit and the second lens unit move in an optical axis direction, while the fourth lens unit and the fifth lens unit are each consists of one lens element. An imaging device and a camera employ this zoom lens system. | 04-22-2010 |
20100165480 | ZOOM LENS SYSTEM, IMAGING DEVICE AND CAMERA - A zoom lens system, in order from an object side to an image side, comprising a first lens unit having negative optical power, a second lens unit having positive optical power, and at least one subsequent lens unit having optical power, wherein in zooming from a wide-angle limit to a telephoto limit, the lens units are moved along an optical axis such that an air space between at least any two lens units among the lens units should vary, so that variable magnification is achieved, wherein the first lens unit includes a lens element having a reflecting surface for bending a light beam incident from the object, and wherein the condition is satisfied: 0.20<|f | 07-01-2010 |
20110085247 | ZOOM LENS SYSTEM, IMAGING DEVICE AND CAMERA - A zoom lens system, in order from an object side to an image side, comprising a first lens unit having positive optical power, a second lens unit having negative optical power, a third lens unit having positive optical power, and subsequent lens units including a fourth lens unit having optical power, wherein any one of the first lens unit, the second lens unit, the third lens unit, and the subsequent lens units includes a lens element having a reflecting surface that bends a light beam incident from an object, wherein in zooming from a wide-angle limit to a telephoto limit at the time of image taking, the first lens unit and the third lens unit do not move along an optical axis, and wherein the condition is satisfied: 1.4204-14-2011 | |
20110261232 | ZOOM LENS SYSTEM, IMAGING DEVICE AND CAMERA - A zoom lens system comprising a first lens unit having positive optical power, a second lens unit having negative optical power, a third lens unit having positive optical power, a fourth lens unit having negative optical power, and a fifth lens unit having positive optical power, wherein the third lens unit includes at least one lens element having positive optical power and at least one lens element having negative optical power, at least the first to third lens units are moved along an optical axis in zooming so that air spaces between the respective lens units vary, thereby performing magnification change, a lens unit positioned on the image side relative to an aperture diaphragm is moved along the optical axis in focusing, and the conditions: 8.110-27-2011 | |
20110261250 | ZOOM LENS SYSTEM, IMAGING DEVICE AND CAMERA - A zoom lens system comprising a first lens unit having positive optical power, a second lens unit having negative optical power, a third lens unit having positive optical power, a fourth lens unit having negative optical power, and a fifth lens unit having positive optical power, wherein the third lens unit includes at least one lens element having positive optical power and at least one lens element having negative optical power, at least the first to third lens units are moved along an optical axis in zooming so that air spaces between the respective lens units vary, thereby performing magnification change, a lens unit positioned on the image side relative to an aperture diaphragm is moved along the optical axis in focusing, and the conditions: 4.010-27-2011 | |
20110310231 | STEREOSCOPIC IMAGING OPTICAL SYSTEM, INTERCHANGEABLE LENS APPARATUS, AND CAMERA SYSTEM - A stereoscopic imaging optical system is provided, which forms two optical images having no mutual interference, side-by-side, on a rectangle image sensor, and which is applicable to an interchangeable-lens type digital camera system. The stereoscopic imaging optical system includes a first lens system and a second lens system which are arranged in parallel, and a field diaphragm arranged on the object side relative to these lens systems. The first lens system and the second lens system form optical images of an object on a first imaging area and a second imaging area, respectively. The field diaphragm has an aperture arranged in front of the first lens system and the second lens system. The field diaphragm blocks only a portion of a light beam incident on the first lens system, which portion enters the second imaging area, and blocks only a portion of a light beam incident on the second lens system, which portion enters the first imaging area. | 12-22-2011 |
20120092457 | STEREOSCOPIC IMAGE DISPLAY APPARATUS - A display apparatus | 04-19-2012 |
20120113233 | Stereoscopic Imaging Optical System, Imaging Device, and Camera - A stereoscopic imaging optical system having a function to adjust a stereo base, an imaging device that includes the stereoscopic imaging optical system, and a camera that includes the imaging device, are provided. The stereoscopic imaging optical system includes two imaging lens systems arranged in parallel, and two diaphragms arranged in the imaging lens systems, respectively. At least one of the diaphragms is decentered with respect to an optical axis to adjust the stereo base. Further, a condition (1.8≦SB | 05-10-2012 |
20120154524 | Zoom Lens System, Imaging Device and Camera - A zoom lens system comprising a plurality of lens units including, in order from an object side to an image side, at least a positive first lens unit, a negative second lens unit, and a positive third lens unit, wherein any one of the plurality of lens units includes a lens element having a reflecting surface that bends a light beam incident from an object, in zooming from a wide-angle limit to a telephoto limit at the time of image taking, the first lens unit and the third lens unit do not move along an optical axis, and the conditions: 4.25<√(f | 06-21-2012 |
20120162497 | Zoom Lens System, Imaging Device and Camera - A zoom lens system comprising: a negative first lens unit; a positive second lens unit; and a positive third lens unit, wherein the first to third lens units are individually moved along an optical axis to vary magnification in zooming, the first lens unit is composed of two lens elements and includes a positive lens element having at least one aspheric surface, the third lens unit is composed of one lens element, and the condition: 1.7406-28-2012 | |
20120162768 | Zoom Lens System, Imaging Device and Camera - A zoom lens system comprising: a first lens unit having negative optical power; a second lens unit having positive optical power; and a third lens unit having positive optical power, wherein the first to third lens units are individually moved along an optical axis to vary magnification in zooming, each lens unit includes at least one lens element that satisfies the conditions: nd≦1.67, vd<59 and 0.00006-28-2012 | |
20120307087 | Zoom Lens System, Imaging Device and Camera - A zoom lens system comprising: a positive first lens unit; a negative second lens unit; a positive third lens unit; and a subsequent lens unit, wherein the first to third lens units move along an optical axis in zooming, a part of the third lens unit is a third-b lens unit moving in a direction perpendicular to the optical axis, and the conditions: 1.5<(D | 12-06-2012 |
20120307366 | Zoom Lens System, Imaging Device and Camera - A zoom lens system, in order from an object side to an image side, comprising: a first lens unit having positive optical power; a second lens unit having negative optical power; a third lens unit having positive optical power; and a subsequent lens unit, wherein in zooming from a wide-angle limit to a telephoto limit at the time of image taking, the first lens unit, the second lens unit, and the third lens unit are moved along an optical axis to perform magnification change, and wherein the third lens unit, in order from the object side to the image side, comprises: a third-a lens unit that, at the time of retracting, escapes along an axis different from that at the time of image taking; and a third-b lens unit that moves in a direction perpendicular to the optical axis to optically compensate image blur. | 12-06-2012 |
20120307367 | Zoom Lens System, Imaging Device and Camera - A zoom lens system, in order from an object side to an image side, comprising: a first lens unit having positive optical power; a second lens unit having negative optical power; a third lens unit having positive optical power; and a subsequent lens unit, wherein in zooming from a wide-angle limit to a telephoto limit at the time of image taking, the first lens unit, the second lens unit, and the third lens unit are moved along an optical axis to perform magnification change, wherein the third lens unit has at least two air spaces, and the conditions: −4.912-06-2012 | |