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Match Document Document Title
7612949 Zoom lens and imaging apparatus  
A zoom lens includes, in order from the object side, 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...
7609313 Image pick-up lens, image pick-up unit and mobile terminal  
An image pick-up lens for forming an image of an object on a solid image pick-up element having a rectangular effective pixel area, has a first lens; a second lens; a third lens; and a diaphragm...
7605986 Zoom lens  
An exemplary zoom lens comprises, in order from an object side of the zoom lens, a first lens module having a negative refractive power, a second lens module having a positive refractive power and...
7599126 Zoom lens system, imaging device and camera  
A zoom lens system comprising a first lens unit of negative power, a second lens unit of positive power and a third lens unit of positive power, wherein in zooming, the lens units move respectively...
7593166 Zoom lens system, imaging device and camera  
A zoom lens system comprising a first lens unit having negative power, a second lens unit having positive power and a third lens unit having positive power, wherein: the first lens unit comprises a...
7589910 Zoom lens, camera, and personal digital assistant  
The zoom lens includes a first lens group G 1 having a negative refracting power, an aperture stop FA, a second lens group G 2 having a positive refracting power, and a third lens group G 3 ...
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...
7589906 Zoom lens system and an image pickup apparatus including the same  
A zoom lens system is provided that can be used as an optical system for an image pick-up device, which can have improved shading characteristics using multiple lens units, for example three lens...
7586691 Variable-power imaging optical system and imaging device  
A variable-power imaging optical system is provided and includes three, negative, positive and positive lenses. A first group includes a negative lens and a positive lens. A second lens group...
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...
7580200 Optical zoom lens  
An optical zoom lens includes, in this order from the object side to the image side thereof, a first lens group of negative refraction power, a second lens group of positive refraction 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...
7573650 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...
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,...
7570435 Zoom lens system, imaging device and camera  
A zoom lens system comprising a first lens unit having negative power, a second lens unit having positive power and a third lens unit having positive power, wherein in zooming from a wide-angle...
7557839 Electronic imaging device and mobile terminal including the electronic imaging device  
An electronic imaging device includes a zoom lens that includes a plurality of lens groups and an imaging element that converts an optical image formed by the zoom lens into an electric signal. The...
7551367 Wide-angle lens, optical apparatus and method for focusing  
Providing a wide-angle lens having high optical performance, an optical apparatus using the same, and a method for focusing the wide-angle lens. The lens comprising, in order from an object, a...
7545581 Zoom lens and projector unit  
To provide a compact, high-performance zoom lens having a small lens aperture for enlarging an image from a light valve such as a DMD for forming an image by changing a reflecting direction of...
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...
7535653 Zoom lens, imaging device and camera device and mobile information terminal using the zoom lens  
A zoom lens, including: a first group optical system having a negative focal length; a second group optical system having a positive focal length; a third group optical system having a positive...
7529037 Zoom lens and imaging system incorporating it  
A zoom lens that has a zoom ratio of the order of 3, and is of sufficiently compact size and improved optical properties. The zoom lens includes, in order from its object side, a first lens unit...
7529036 Projection zoom lens and projection display device  
A projection zoom lens has three negative, positive, and position group configuration in order from a magnification side. A first group G 1 includes a positive L 1 , a negative meniscus lens L 2 ,...
7525738 Lens system  
A lens system includes, in sequence from an object side to an image side, a first lens group having negative refractive power; a second lens group having positive refractive power, which includes a...
7522350 Zoom lens system and image pickup apparatus including the same  
A zoom lens system includes a first lens unit having a negative optical power and a second lens unit having a positive optical power in order from the object side to the image side. In a zooming...
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...
7511893 Zoom lens system  
A zoom lens system is disclosed which includes a first lens group with negative optical power, a second lens group with positive optical power, and a third lens group with positive optical power,...
7508601 Imaging lens  
An imaging lens includes, in order from an object side, a first lens with a positive refractive power having a biconvex shape; an aperture stop having a predetermined aperture diameter; a second...
7508600 Optical system and optical apparatus including the same  
An optical system includes at least one of a movable lens unit movable in an optical axis direction and a fixed lens unit that is not movable in the optical axis direction. The at least one lens...
7502172 Zoom optical system and image taking apparatus using the same  
A zoom optical system comprising, in order from an object side: a first lens unit having a negative refractive power; a second lens unit having a positive refractive power; and a third lens unit...
7492527 Three-group zoom lens and imaging device  
In a three-group zoom lens having negative power, positive power, and positive power in order from an object side, a first lens group is built from a first negative lens and a second positive...
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...
7486447 Compact zoom lens  
A compact zoom lens includes, from the object side to the image side, a negative first lens group ( 1 ), a positive second lens group ( 2 ) and a positive third lens group ( 3 ). The first lens...
7486446 Zoom lens and electronic imaging device having the same  
A zoom lens includes a most object-side lens unit remaining fixed on the optical axis when the magnification of the zoom lens is changed and a focusing operation is performed; a most image-side...
7477457 Zoom lens system and electronic image pickup apparatus using the same  
A zoom lens system comprises a first lens unit having a positive refractive power, a second lens unit having a negative refractive power and a third lens unit having a positive refractive power,...
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...
7471459 Zoom lens system and image pickup apparatus using the same  
A three-unit zoom lens system comprising, in order from an object side, a first lens unit having a negative refractive power; a second lens unit having a positive refractive power; and a third lens...
7468841 Zoom lens and image pickup apparatus  
A zoom lens includes a first lens group having a negative refractive power, and second and third lens groups each having a positive refractive power, sequentially aligned from an object side. 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...
7463425 Zoom lens system  
A zoom lens system is disclosed that includes a front first lens group including a first lens of divergent meniscus and a second lens of plano-convex; an intermediate second lens group including a...
7460312 Zoom lens system  
A zoom lens system includes a negative first lens group, a positive second lens group, and a positive third lens group functioning as a focusing lens group, in this order from the object. Upon...
7460311 Zoom lens system and image pickup apparatus including the same  
A compact zoom lens system having excellent optical performance. The zoom lens system includes a first lens unit of negative optical power, a second lens unit of positive optical power, a third...
7460310 Zoom lens and image pickup apparatus including the lens  
A zoom lens includes a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a third lens unit having a positive refractive power. The first...
7457050 Zoom lens system for use with small electronic sensor  
A five-element 3:1 zoom lens system in which the first lens group has a negative power and includes two lens elements and the second lens group has a positive power and includes a pair of lens...
7457045 Zoom lens  
A zoom lens includes, in order from an object side to an image side, a first lens unit of negative refractive power, a second lens unit of positive refractive power, and a third lens unit of...
7453651 Zoom lens and camera with zoom lens  
There is provided a zoom lens of variable power ratio of the order of 3 in which the whole of the zoom lens is made up of three lens elements groups and the power configuration of each of the...
7453642 Zoom lens system and image pickup apparatus having the same  
Disclosed is a compact zoom lens system having a image stabilizing function. This zoom lens system is provided with a plurality of lens units of which the interval between adjacent ones is changed...
7453507 Electronic imaging apparatus  
An electronic imaging apparatus of the present invention comprises a photographing optical system, in order from an object side, a first lens group having negative refracting power, which has a...
7450837 Zoom optical system, imaging lens device, and digital apparatus  
A zoom optical system has lens groups, and performs zooming by varying distances between the respective lens groups in an optical axis direction thereof. The zoom optical system has two or more...
Matches 1 - 50 out of 458 1 2 3 4 5 6 7 8 9 10 >