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Match Document Document Title
7609457 Zoom lens and image pickup apparatus including the same  
A zoom lens includes a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a fourth...
7599123 Zoom lens system, imaging apparatus and method for varying focal length  
Providing a zoom lens system being inexpensive, compact and lightweight with high optical performance, and an imaging apparatus, and a method for varying a focal length. The zoom lens system...
7599122 Microscope optical system and digital microscope having the same  
A microscope optical system includes, in order from an object side to an image side, a first lens group, a second lens group, a stop, a third lens group, a fourth lens group and a sensor. The first...
7589907 Zoom lens system, image pickup device and digital device  
A zoom lens system includes, in order from an object side: a first lens group having a negative optical power, a second lens group having a negative optical power, and, a third lens group having a...
7583450 Zoom lens  
The invention relates to a zoom lens that can achieve higher performance easily. In order from the object side of the zoom lens, it comprises a positive first lens group G 1 , a negative second...
7583449 Zoom lens and image pickup apparatus having the same  
A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power configured not to move for zooming, a second lens unit having a negative...
7583448 Zoom optical system and electronic system incorporating it  
The invention relates to a zoom optical system that makes it possible to offer a sensible tradeoff between cost savings and size reductions and an electronic system that incorporates it. The zoom...
7583447 Zoom optical system and electronic system incorporating IT  
The invention relates to a zoom optical system that makes it possible to offer a sensible tradeoff between cost savings and size reductions and an electronic system that incorporates it. The zoom...
7580202 Zoom lens system and image pickup apparatus including the same  
A zoom lens system includes, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and a...
7580199 Zoom lens and image taking system having the same  
A zoom lens includes a focus unit, a zoom unit, an aperture stop, and an imaging unit having a splitting element that are arranged in that order from an object side to an image side. The splitting...
7576923 Zoom lens and image projection apparatus having the same  
A zoom lens comprises a plurality of lens units including a first lens unit disposed most adjacent to an enlargement side and having negative refractive power, wherein one or more lens units of the...
7573647 Optical unit and image capturing apparatus including the same  
In zooming, an optical unit moves the lens unit located at the most image side and the image sensor along the optical axis while not moving at least one lens unit, of a plurality of lens units,...
7567389 Zoom lens, image pickup apparatus and digital equipment  
A zoom lens includes a first lens group having a negative optical power and including a reflection optical element; a second lens group having a positive optical power; a third lens group having a...
7561342 Zoom lens system  
An object is to provide an ultra-compact zoom lens system suitable for a video camera and a electronic still camera using a solid-state imaging device and the like with securing high optical...
7558004 Variable power optical system  
A variable power optical system is provided and includes a positive first lens group, a negative second lens group, a positive fifth lens group, a positive third lens group, and a negative fourth...
7554747 Zoom lens  
A zoom lens is provided and has a first group having a positive refractive power, a second group having a negative refractive power, an aperture stop, a third group having a positive refractive...
7554746 Zoom lens and information device  
A zoom lens includes, in order from an object side, a first lens group having a positive refracting power, a second lens group having a negative refracting power, a third lens group having a...
7554745 Zoom lens employing lens eccentricity approach to compensate for image blur due to hand tremor  
Zoom lens, using lens eccentricity to compensate for image blur, has four groups of lens pieces; 1 st , 3 rd and 4 th , each with positive refractive power, and 2 nd with negative refractive...
7551365 Zoom lens, digital camera and portable information device  
A zoom lens in the present invention is composed of a first lens group G 1 having a fixed distance from the image plane side and negative refracting power, a second lens group G 2 having positive...
7549809 Image-taking lens system and digital apparatus using the same  
An aperture stop, a first lens having a positive power, a second lens having a negative power, a third lens having a positive power, and a fourth lens whose concave face is directed toward the...
7542213 Projecting zoom lens and projection display device  
A power varying operation is performed by moving four lens groups out of six lens groups. A reduction side of a zoom lens is constructed as a substantially telecentric system. An aspheric lens is...
7535652 Zoom optical system and electronic imaging apparatus using the same  
A zoom optical system has, in order from the object side, a first lens unit with negative refracting power, including one biconcave-shaped lens component, a second lens unit with positive...
7532412 Zoom lens having image stabilizing function  
A zoom lens includes, in order from object to image sides, first and second lens units having positive and negative refractive power, respectively, and a rear lens group including at least one lens...
7532411 High zoom ratio zoom lens system  
Providing a high zoom ratio zoom lens system having a short total lens length and a small diameter of the first group despite of securing excellent optical performance, a half angle of view of...
7529035 Zoom lens system and image pickup device  
A zoom lens system includes, in order from an object side: a first lens group having negative power, a second lens group having negative power, a third lens group having positive power, and, a...
7525737 Zoom lens and image pickup apparatus having same  
A zoom lens comprises a first positive lens unit, a second negative lens unit, a third positive lens unit, and a fourth positive lens unit, the lens units being arranged in order from the object...
7522349 Wide-angle zoom lens system  
A wide-angle zoom lens system includes a positive first lens group, a negative second lens group, a positive third lens group, and a positive fourth lens group, in this order from the object. Upon...
7522346 Imaging device and digital camera using the imaging device  
An imaging device has a zoom lens system having a plurality of lens units and forming an optical image of an object so as to continuously optically zoom by varying distances between the lens unit;...
7515353 Zoom lens system and camera including zoom lens system  
A zoom lens system includes, in order from an object side to an image side, a first lens unit having a positive optical power, a second lens unit having a negative optical power, and a rear lens...
7515352 Zoom lens system and optical device using thereof  
Providing an ultra-compact zoom lens system having a vibration reduction function, suitable for a compact optical device using a solid-state imaging device. The system includes, in order from an...
7511892 Image-acquisition optical system  
There is provided a compact image-acquisition optical system which is capable of observing from normal observation to microscopic observation with a single image-acquisition optical system, whose...
7508594 Wide-angle zoom lens system  
A wide-angle zoom lens system includes a negative first lens group, a positive second lens group, a negative third lens group and a positive fourth lens group, in this order from the object. Upon...
7505213 Zoom lens and image pickup apparatus  
A focusing group G 1 is disposed on an object side relative to a variator group G 2 . The focusing group G 1 includes, in order from the object side, a first group G 11 having a positive...
7499225 Compact zoom lens optical system and driving method of the same  
A refractive-type zoom lens optical system includes a first lens group having a negative lens power and including a reflection member, a second lens group having a negative lens power, a third lens...
7495841 Zoom lens and projector using zoom lens  
To provide a high performance compact zoom lens with a small lens aperture which projects an image from a light valve such as a DMD (Digital Micromirror Device) in which an image is formed by...
7492525 Zoom lens, camera apparatus and portable information terminal apparatus  
A zoom lens having five lens groups arranged in succession. The zoom lens is configured such that when zooming from a short focal length end toward a long focal length end, the second lens group...
7492524 Zoom lens system, imaging apparatus, method for vibration reduction, and method for varying focal length  
Providing a zoom lens system with a vibration reduction function, a high zoom ratio, and a wide angle of view, an imaging apparatus, a method for vibration reduction, and a method for varying a...
7489449 Zoom lens for projection and projection display device  
A zoom lens for projection is provided and includes a first group having a negative refractive power, a second group having a positive refractive power, a third group having a positive refractive...
7486448 Zoom lens and image pickup apparatus  
A zoom lens includes, in order from an object side to an image side, first, second, and third lens units having negative, positive, and positive refractive power, respectively. The zoom lens...
7471462 Zoom lens and image pickup apparatus having the same  
A zoom lens includes, in order from the object side to the image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and a third lens...
7471460 Zoom lens system and camera having same  
A zoom lens system includes, in order from an object side to an image side, a first lens unit having positive optical power, a second lens unit having negative optical power, a third lens unit...
7471453 Zoom lens system, imaging device and camera  
A zoom lens system comprising a plurality of lens units each composed of at least one lens element, wherein an interval between at least any two lens units among the lens units is changed so that...
7468845 Zoom lens  
A zoom lens suitable for imaging an object on a photosensitive element is provided. The zoom lens includes a first lens group, a second lens group disposed between the first lens group and the...
7466495 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;...
7463426 Image pickup apparatus  
An image pickup apparatus includes an image pickup element and an optical system configured to form an image on the image pickup element. The optical system includes, in order from an object side...
7457049 High magnification zoom lens  
A high magnification zoom lens system includes a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive...
7457048 High magnification zoom lens system  
A high magnification zoom lens system includes first through fifth lens groups respectfully arranged sequentially from an object side. At least one of the first through fifth lens groups moves...
7457047 Zoom optical system and imaging apparatus using the same  
A zoom optical system includes, in order from the object side, a first lens unit with positive refracting power, a second lens unit with negative refracting power, a third lens unit with positive...
7453650 Zoom optical system and electronic imaging apparatus having the same  
An electronic imaging apparatus includes a zoom optical system having, in order from the object side, a first lens unit with positive power, a second lens unit with negative power, and an aperture...
7453649 Zoom lens and image pickup device  
A zoom lens includes 10 or less lens elements and having a zoom ratio of more than 20×, said zoom lens having first, second, third, and fourth groups of lens elements placed in turn from object...
Matches 1 - 50 out of 384 1 2 3 4 5 6 7 8 >