Patent application number | Description | Published |
20110128630 | LENS SYSTEM AND OPTICAL APPARATUS - A lens system comprising, in order from an object side: a first lens group G | 06-02-2011 |
20110170195 | IMAGING LENS, OPTICAL APPARATUS INCLUDING IMAGING LENS AND METHOD FOR MANUFACTURING IMAGING LENS - An optical system includes, in order from an object side: a first lens group G | 07-14-2011 |
20110176215 | IMAGING LENS, OPTICAL APPARATUS EQUIPPED THEREWITH, AND METHOD FOR MANUFACTURING IMAGING LENS - An imaging lens SL comprising, in order from an object side: a first group G | 07-21-2011 |
20110273776 | ZOOM LENS SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING ZOOM LENS SYSTEM - Including, in order from an object side: a first lens group G | 11-10-2011 |
20110317278 | ZOOM LENS, IMAGING APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS - A zoom lens including, from an object: a front group having negative power; and a rear group having positive power, the rear group including, from the object, a positive lens, a negative lens having a concave surface facing the object, a cemented positive lens constructed by a negative lens and a positive lens, and a cemented lens constructed by a positive lens and a negative lens, the rear group further including a focusing group disposed to the object side of the positive lens La for focusing from infinity to a close object by moving from the object side to an image side, a distance between the front group and the rear group being varied thereby zooming from a wide-angle end state to a telephoto end state, and given condition being satisfied, thereby providing a downsized zoom lens having wide angle of view and excellent optical performance with fewer lenses. | 12-29-2011 |
20120026590 | IMAGING LENS, OPTICAL APPARATUS INCLUDING IMAGING LENS AND METHOD FOR MANUFACTURING IMAGING LENS - An optical system includes, in order from an object side: a first lens group G | 02-02-2012 |
20120069440 | OPTICAL SYSTEM, OPTICAL APPARATUS EQUIPPED THEREWITH, AND METHOD FOR MANUFACTURING OPTICAL SYSTEM - An optical system SL installed in a single-lens reflex camera includes, in order from an object side, a first lens group G | 03-22-2012 |
20120069441 | IMAGING LENS, OPTICAL APPARATUS EQUIPPED THEREWITH AND METHOD FOR MANUFACTURING IMAGING LENS - An imaging lens, an optical apparatus equipped therewith, and a method for manufacturing the imaging lens are provided. The imaging lens includes a front lens group having negative refractive power disposed to the most object side and a rear lens group having negative refractive power, disposed to an image side of the front lens group and moving at least a portion thereof in a direction including a component substantially perpendicular to an optical axis. The rear lens group includes G | 03-22-2012 |
20120081791 | WIDE-ANGLE LENS, IMAGING APPARATUS, AND METHOD FOR MANUFACTURING WIDE-ANGLE LENS - Including: a front group Gf disposed to an object side of an aperture; and a rear group Gr disposed to an image side of the aperture; the front group including a sub group Ga having negative power, the sub group including, from the object side, at least three negative lenses, at least one of the three negative lens being an aspherical negative meniscus lens having a shape that negative power is getting smaller from the center to the periphery, a cemented lens constructed by a positive lens, a negative lens and a positive lens disposed to the image side of the sub group, an antireflection coating being applied on at least one surface of the front group, the antireflection coating including at least one layer formed by a wet process, and given conditions being satisfied, thereby providing a wide-angle lens having high optical performance with a large angle of view. | 04-05-2012 |
20120105966 | ZOOM LENS, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS - A zoom lens includes, in order from an object side along an optical axis, a first lens group G | 05-03-2012 |
20120127594 | OPTICAL SYSTEM, OPTICAL APPARATUS AND OPTICAL SYSTEM MANUFACTURING METHOD - An optical system WL has, in order from an object, a first lens group G | 05-24-2012 |
20120188647 | ZOOM LENS SYSTEM, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS SYSTEM - With including, in order from an object side along an optical axis: a first lens group having positive refractive power; a second lens group having negative refractive power; a third lens group having positive refractive power; a fourth lens group having negative refractive power; and a fifth lens group having positive refractive power, upon zooming from a wide-angle end state to a telephoto end state, the first lens group being moved with respect to an image plane, a distance between the first lens group and the second lens group increasing, a distance between the second lens group and the third lens group decreasing, a distance between the third lens group and the fourth lens group varying, and a distance between the fourth lens group and the fifth lens group varying, and a given conditional expression being satisfied, thereby providing a zoom lens system having sufficiently high optical performance. | 07-26-2012 |
20120206719 | METHOD FOR MEASURING WAVEFRONT ABERRATION AND WAVEFRONT ABERRATION MEASURING APPARATUS - Providing a method for measuring wavefront aberration measured by detecting light that is emanated from a light source, incident on a test lens, and transmitted through the test lens, the method comprising steps of: measuring wavefront aberration in a state where an aperture stop of the test lens is fully opened; measuring a position of the center of a pupil of the test lens in a state where the aperture stop is stopped down; and expanding wavefront aberration by polynomials with making the position of the center of the pupil to be an origin, and a wavefront aberration measuring apparatus. | 08-16-2012 |
20130250424 | ZOOM LENS, IMAGING DEVICE AND METHOD FOR MANUFACTURING THE ZOOM LENS - The present invention has, in order from an object: a first lens group (G | 09-26-2013 |
20140307326 | EYEPIECE LENS, VIEWFINDER OPTICAL SYSTEM AND OPTICAL APPARATUS EQUIPPED WITH THE SAME, AND METHOD FOR MANUFACTURING EYEPIECE LENS - An eyepiece lens (EL) used for a viewfinder optical system (VF) for viewing, using the eyepiece lens (EL), an image formed by an objective lens (OL), an image displayed by a display member, or an object, wherein an antireflection coating ( | 10-16-2014 |
20140334013 | ZOOM LENS SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING ZOOM LENS SYSTEM - In a zoom lens system, an optical apparatus, and a manufacturing method, there are provided, in order from an object side: a first lens group having positive power, a second lens group having negative power, a third lens group having positive power, a fourth lens group having negative power, a fifth group having positive power, and an aperture stop disposed to an image side of the second lens group. Upon zooming from a wide-angle end state to a telephoto end state, a distance between the first lens and second lens groups increases, a distance between the second and third lens groups decreases, a distance between the third and fourth lens groups varies, and a distance between the fourth and fifth lens groups varies. With given conditions being satisfied, high optical performance with suppressing variation in aberrations are achieved. | 11-13-2014 |