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Match Document Document Title
7623300 Zoom lens and image pickup apparatus including the same  
A zoom lens comprises, from object to image side: a positive first-lens unit; a negative second-lens unit; a positive third-lens unit; and a positive fourth-lens unit; the third-lens unit...
7623299 Zoom lens and imaging apparatus  
A zoom lens is provided, which includes a first lens group Gr 1 having positive refractive power, a second lens group Gr 2 having negative refractive power, which is movable in an optical axis...
7616386 Zoom lens and image-pickup apparatus  
A zoom lens achieves a high zoom ratio and high optical performance in an entire zoom range. The zoom lens includes, in order from an object side to an image side, a first lens unit having a...
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...
7609456 Standard zoom lens system  
A standard zoom lens system including a positive first lens group, a negative second lens group, a positive third lens group and a positive fourth lens group. Upon zooming from the short focal...
7605987 Zoom optical system and imaging apparatus incorporating the same  
The invention relates to a zoom optical system that, albeit having high zoom capabilities, has its total length reduced in consideration of size reductions upon received at a lens mount, and an...
7602558 Zoom lens and imaging apparatus  
A zoom lens is provided and includes: in order from the object side, a first lens group having a positive power and including in order from the object side, a negative lens, a reflecting member...
7599125 Image pickup apparatus having wide angle zoom lens system  
An image pickup apparatus having a wide angle zoom lens system includes a zoom lens system, and an image pickup element which is disposed at an image side of the zoom lens system. The zoom lens...
7599124 Telephoto zoom lens  
The present invention is directed to a compact large-aperture-ratio inner-focusing telephoto zoom lens of the reduced total lens extension where minimizing a photo-shooting distance down to as...
7595936 Zoom lens system and camera having the same  
A zoom lens system, in that order from an object side to an image side, includes first to fourth lens units respectively having positive, negative, positive, and positive optical powers. The second...
7589908 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, a second lens unit having a negative refractive power, a third lens unit...
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...
7580201 Zoom lens system  
A zoom lens system includes, in order from an object side to an image side, a first positive lens group (G 1 ), a second negative lens group (G 2 ), a third positive lens group (G 3 ), and a fourth...
7576927 Zoom lens and electronic imaging apparatus incorporating the same  
The invention relates to a less costly zoom lens that can offer a sensible tradeoff between size reductions and high zoom ratios with a well-kept image quality, and that lends itself to an...
7573649 High variable power zoom lens  
The present invention is directed to a high variable power zoom lens that ensures a flange-back or a backfocal distance required for typical 35-mm film cameras while keeping an angle of view...
7561787 Reduction optical system with a meniscus single-lens element  
A reduction optical system for forming, without re-imaging, a reduced image of a subject image formed by a main lens system. The reduction optical system has on the most object side a meniscus...
7561344 Zoom lens system and image pickup apparatus including the same  
A simple, compact, high-zoom-ratio zoom lens system exhibiting high optical performance at all zoom positions is provided. The system includes, in order from the object side to the image side,...
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...
7551366 Zoom lens and image capture apparatus  
A zoom lens includes, in order from an object side, a first lens group having a positive refractive power and fixed in an optical axis direction, a second lens group having a negative refractive...
7545580 Zoom lens and image pickup apparatus including the same  
A zoom lens includes, in order from an object side to an image side, a first lens unit having positive refractive power, a second lens unit having negative refractive power, a third lens unit...
7540671 Variable-power optical system and electronic device using same  
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...
7535654 Zoom lens, imaging device, and personal digital assistant  
The invention provides a zoom lens capable of achieving a half angle of view over 38 degrees at the wide-angle end, a magnification ratio 6.5 to 10 or more, and a resolving power corresponding to...
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...
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...
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...
7508595 Taking lens apparatus  
A taking lens apparatus has a zoom lens system that forms an optical image of an object at a variable magnification and that includes an aperture stop in the optical path, and an image sensor that...
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...
7489452 Telephoto zoom lens system  
A telephoto zoom lens system includes a positive first lens group, a negative second lens group as a focusing lens group, a diaphragm, a positive third lens group, and a positive fourth lens group,...
7489451 Taking lens system and image capturing apparatus  
A taking lens system is provided with, from the side of the object to be photographed, a first lens unit (G 1 ) having positive optical power, a second lens unit (G 2 ) having negative optical...
7489450 Lens unit and an image-sensing apparatus therewith  
In a lens unit including a plurality of lens groups, the first, most object-side lens group includes a prism that changes the optical axis. In this lens unit, during zooming, while the first lens...
7477456 Zoom lens  
A zoom lens includes in the order from an object a first lens group having a negative refractive power, including at least one negative lens and one positive lens, wherein a negative plastic 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...
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...
7466496 Zoom lens and image pickup apparatus having the same  
A zoom lens includes: a first lens unit of positive refractive power; a second lens unit of negative refractive power; a third lens unit of positive refractive power; and a fourth lens unit of...
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;...
7463427 Zoom lens and image pickup apparatus  
A zoom lens made up of a first lens group having positive refracting power, a second lens group having negative refracting power, a third lens group having positive refracting power, and a fourth...
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...
7457046 Zoom lens system and image-taking apparatus  
A zoom lens system is disclosed which comprises in order from an object side to an image side: a first lens unit with a positive optical power (inverse of the focal length), a second lens unit with...
RE40582 Zoom lens system  
The invention provides a zoom lens system that is reduced in terms of both size and cost. The zoom lens system comprises a first positive lens group G1, a second negative lens group G2, a stop S, a...
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...
Matches 1 - 50 out of 364 1 2 3 4 5 6 7 8 >