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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...
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...
7450314 Zoom lens system and image pickup apparatus using the same  
A zoom lens system comprises, in order from an object side, a first lens unit having a positive refractive power; a second lens unit having a negative refractive power; a third lens unit having a...
7447426 Optical apparatus and lens control method  
An optical apparatus is disclosed, which is capable of suppressing an image blur at the start of zooming. The optical apparatus comprises a memory storing data indicating the position of a second...
7446804 Camera system and zoom lens  
The present invention provides a camera system which comprises: a zoom lens; phototaking means converting an image captured by the zoom lens into an electric image signal; and image control means,...
7443599 Magnification varying optical system and image taking apparatus  
A magnification varying optical system that directs light from an object to an image sensor includes in order from the object side: a first lens unit having negative optical power and including an...
7433132 Zoom lens system and electronic image pickup apparatus using the same  
A four-unit zoom lens system includes in order from an object side, a first lens unit having a positive refracting power, a second lens unit having a negative refracting power, a third lens unit...
7430079 Zoom lens and imaging system using the same  
The invention relates to a high-performance, high-zoom-ratio zoom lens that can be much more reduced in terms of thickness upon received at a collapsible lens mount, and an imaging system...
7428107 Zoom lens and image pickup apparatus having the same  
A zoom lens includes first to fifth lens units arranged in sequence from an object side to an image side, and having positive, negative, positive, negative, and positive refractive powers in that...
7423812 Zoom lens and projector employing zoom lens  
In a thin projector for projecting an image from a light valve such as a DMD, a compact zoom lens comprises, in order, a first lens group having a negative refractive power, a second lens group...
7418200 Optical unit and imaging device  
A collapsible type optical unit is described that is capable of moving its optical system between a working position and a retracted position as well as an image-pickup apparatus including the...
7411741 Zoom lens system including reflective surface which reflects optical path and image pickup apparatus including the system  
There is disclosed a zoom lens system including, in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third...
7411740 Zoom lens  
Disclosed is a zoom lens, which includes, in sequence from an object side to an image side, a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth...
7408719 Telephoto lens, telephoto lens system, and imaging system incorporating the same  
The invention relates to a telephoto lens that can easily have high resolving power best suited for use with digital cameras and maintain the integrity of performance even at the nearest distance...
7403340 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 a single lens component; a second lens unit with positive refracting power,...
7400458 Imaging optics with wavelength dependent aperture stop  
An imaging system includes a wavelength dependent aperture stop, which transmits light with different ranges of wavelengths through apertures of different diameters. Thus, different colored light...
7397610 Zoom lens and image projection apparatus having the same  
A zoom lens of the invention has three lens groups. In the zoom lens, magnification change is performed by moving only one lens group among the three lens groups, and focus adjustments is performed...
7390098 Projection lens, and projection display apparatus and rear projection display apparatus using the projection lens  
A projection lens that, though designed for right projection, shows good aberration performance and can realize specifications required for a projection display apparatus, such as a low F number, a...
7385766 Variable focal length lens system and image capturing apparatus  
A variable focal length lens system includes first to fourth lens groups having positive, negative, positive, and positive powers, respectively, and a fifth lens group arranged in this order from...
7379249 Downsize, high performance, and wide range magnification zoom lens and camera apparatus  
A zoom lens includes a first lens band having a positive focal length, a second lens band having a negative focal length, and at least third to fifth lens bands having positive focal lengths. An...
7365907 Rear projection image display apparatus  
A compact rear projection image display apparatus in which the projection distance in a projection optical system is substantially reduced and no reflection mirror is used, thereby eliminating a...
7339745 Zoom lens system and electronic image pickup apparatus using the same  
A zoom lens system comprising, a first negative lens unit; a second positive lens unit; and a third negative lens unit, wherein a space between the second and third lens units changes during...
7336429 Zoom lens system  
Providing a zoom lens system that satisfies making the focusing lens light and reducing a moving amount for focusing, simultaneously. The zoom lens system includes a first lens group having...
7330316 Zoom lens system  
Object is to provide an inner-focusing type zoom lens system carrying out focusing by moving a portion of a first lens group suitable for an auto-focus SLR camera. A zoom lens system includes, in...
7317580 Zoom lens  
In this invention, to provide a compact zoom lens having a small number of optical element groups to be driven and a simple moving mechanism, at least one of a plurality of optical element groups...
7315425 Zoom lens and image projection apparatus having the same  
A zoom lens of the invention has three lens groups. In the zoom lens, magnification change is performed by moving only one lens group among the three lens groups, and focus adjustments is performed...
7315423 Zoom lens including four lens groups  
A zoom lens that is designed to enable a thinner image pickup device includes, in order from the object side, a first lens group having positive refractive power and a reflecting surface for...
7312931 Zoom lens and image pickup apparatus  
The present invention provides a zoom lens provided with, in order from an object side: a first lens group having a positive refractive power whose position on the optical axis is fixed during a...
7307797 Zoom lens system, lens barrel, 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 is changed so that an optical image is...
7304803 Zoom lens unit, imaging device and photographing device  
A zoom lens unit includes: a positive first lens group; a negative second lens group; and a positive subsequent lens group as a whole, the subsequent lens group includes a third lens group, and an...
7295380 Zoom lens and imaging device  
A zoom lens of rear focus type in which a total lens system is able to be miniaturized by further miniaturizing a prism, without deteriorating an optical performance. The zoom lens has a first lens...
RE39899 Image pickup system  
The invention provides a zoom lens system much more reduced in size and cost than ever before and best-suited for use on portable information terminals of small size. The zoom lens system...
7289274 Telescopic zoom lens system  
A telescopic zoom lens system includes first through fourth lens groups, wherein upon zooming from the short to long focal length extremities, the first and fourth lens groups remain stationary,...
7286299 Zoom lens and image sensing apparatus  
A zoom lens sequentially includes, along an optical axis from the object (to be imaged) side, a first lens group which has positive refracting power and is always fixed at a position in the optical...
7283310 Zoom lens, and imaging system incorporating it  
A zoom lens system includes a first group G 1 of positive power, a second group G 2 of negative power, a third group G 3 of positive power and a fourth group G 4 of positive power. Upon...
7280286 Zoom lens system  
Providing a zoom lens system that can excellently correct aberrations over entire range from a wide-angle end state W to a telephoto end state T in spite of having a high zoom ratio including, in...
7277629 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...
7256945 Zoom lens and image pick-up apparatus  
A zoom lens is proposed, which includes a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive...
7253965 Zoom lens system with vibration reduction  
To provide a zoom lens system with a vibration reduction having a long back focal length suitable for a digital SLR camera, a high zoom ratio, and a wide angle of view of 70° or more. The system...
7253962 Zoom lens and image pickup apparatus  
A zoom lens including a first lens unit exhibiting a positive refractive power and always being statically positioned along an optical axis when a power of the zoom lens is varied or the focusing...
7253961 Zoom lens system and image pickup apparatus including the same  
At least one exemplary embodiment is directed to a zoom lens system which includes, in order from an object side to an image side, a first lens unit with positive optical power, a second lens unit...
7251080 Zoom lens system  
A zoom lens system includes a negative first lens group, a diaphragm, and a positive second lens group, in this order from the object. Zooming is performed by moving the negative first lens group...
7248418 Zoom lens system and image pickup apparatus including the same  
A zoom lens system includes a first lens unit, a lens unit having a positive optical power placed on an image side of the first lens unit, and a lens unit having a negative optical power placed on...
7248293 Image-sensing apparatus having a zoom lens system that folds an optical path  
An image-sensing apparatus has a zoom lens system for forming an optical image of an object with variable magnification, which zoom lens system includes a plurality of lens units and achieves...
7244030 Rear projection type image display device  
The present invention relates to a rear projection type image display device comprising projection lenses ( 2, 3 ) for projecting an image displayed on an image display element onto a transmission...
7242529 Zoom lens and image pickup apparatus  
A zoom lens includes: a first lens group having a positive refractive power and statically positioned along an optical axis when a power of the zoom lens is varied or the zoom lens is focused; a...
7227699 Zoom lens system and image pick-up apparatus including same  
At least one exemplary embodiment is directed to a four-group zoom lens system including, in order from the object side to the image side, a first lens unit having positive refractive power, a...
7227698 Optical unit, and image taking apparatus provided therewith  
A plurality of lens units in an optical unit has at least: from the object side toward the image side, a first lens unit having a positive optical power, a second lens unit having a negative...
7221511 Vibration-proof zoom lens and camera provided with the same  
A vibration-proof zoom lens comprises a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, and a positive fifth lens group, which...
7215485 Zoom lens for image capturing element  
A rear focus type zoom lens for an image capturing element, comprising, in the order from the object side: a first lens group having a positive refracting power; a second lens group having a...
Matches 1 - 50 out of 443 1 2 3 4 5 6 7 8 9 >