Matches 251 - 300 out of 369 < 1 2 3 4 5 6 7 8 >


Match Document Document Title
US20120194730 ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING THE SAME  
A zoom lens includes a first lens group of positive refractive power; a second lens group of negative power; a third lens group of positive power; a fourth lens group of negative power, and a...
US20120147251 IMAGING APPARATUS AND OPTICAL SYSTEM USED FOR IMAGING APPARATUS  
An imaging apparatus comprises an optical system that includes a plurality of lens groups, each lens group including one or more lenses, at least one of the lens groups being independently movable...
US20110273780 Zoom lens and imaging apparatus  
A zoom lens includes first, second, and third lens groups having positive, negative, and positive refractive powers, respectively, which are arranged in order from the object side to the image...
US20110134541 ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING THE SAME  
A zoom lens includes a first, third and fourth lens group of positive refracting power, a second lens group of negative refracting power, wherein, during zooming from a wide-angle end to a...
US20110051256 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 a positive refractive power, a second lens unit having a negative refractive power, an aperture stop,...
US20100302648 ZOOM LENS WITH HIGH OPTICAL PERFORMANCE AND IMAGE PICKUP APPARATUS HAVING THE SAME  
A zoom lens comprises a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and a rear group including at least two lens units and having a...
US20100302640 LENS SYSTEM, OPTICAL APPARATUS AND MANUFACTURING METHOD  
A lens system having, in order from an object, at least a first lens group G1 having positive refractive power, and second to fourth lens groups G2 to G4, wherein the first lens group G1 includes...
US20100238561 Image forming optical system and electronic image pickup apparatus using with the same  
There is provided a zoom lens with a wide angle of view at the wide angle end and a high zoom ratio that has good imaging performance throughout the entire zoom range with chromatic aberrations...
US20100232033 OBJECTIVE LENS FOR ENDOSCOPE  
An objective lens for an endoscope is provided and has a lens group A and a lens group B that are movable in a direction of an optical axis. In the objective lens, first focal adjustment for...
US20100232032 IMAGING APPARATUS, IMAGING METHOD AND HIGH ZOOM RATIO ZOOM LENS SYSTEM  
Providing an imaging apparatus capable of efficiently using effective pixels of a solid-state imaging device, and securing excellent peripheral light quantity of an image even upon vibration...
US20100220398 Variable-focal-length lens system and imaging apparatus  
A variable-focal-length lens system includes first to fifth lens groups having positive, negative, positive, negative, and positive refractive powers, respectively, from the object side. As the...
US20100214666 LENS BARREL AND IMAGE CAPTURING APPARATUS  
Provided is a lens barrel comprising a fixed cylinder; an optical system having a first optical component that moves relative to the fixed cylinder; a first holding frame that holds the first...
US20100194928 ZOOMING OPTICAL SYSTEM AND ELECTRONIC IMAGE PICKUP APPARATUS USING THE SAME  
A zooming optical system having six lens groups includes in order from an object side, a first lens group having a positive refracting power, which is fixed at the time of zooming, a second lens...
US20100182704 Zoom Lens and Image Pickup Apparatus  
A zoom lens includes: a first lens group with a positive refractive power, including a reflection optical element; a second lens group with a negative refractive power; a third lens group with a...
US20100165479 LENS DRIVING APPARATUS, OPTICAL APPARATUS AND CONTROL METHOD FOR LENS DRIVING APPARATUS  
The lens driving apparatus moves a magnification-varying lens and moves a focus lens to compensate for image plane variation caused by movement of the magnification-varying lens. The apparatus...
US20100165476 OPTICAL SYSTEM AND OPTICAL APPARATUS INCLUDING OPTICAL SYSTEM  
Provided are an imaging optical system in which chromatic aberrations are excellently corrected across the entire screen to realize high optical performance, and an optical apparatus including the...
US20170184828 VARIABLE-POWER OPTICAL SYSTEM, OPTICAL DEVICE, AND METHOD FOR MANUFACTURING VARIABLE-POWER OPTICAL SYSTEM  
Composing, in order from an object side, a first lens group G1 having negative refractive power, a second lens group G2 having positive refractive power and at least one lens group G3; upon...
US20170176725 VARIABLE-POWER OPTICAL SYSTEM, OPTICAL DEVICE, AND METHOD FOR MANUFACTURING VARIABLE-POWER OPTICAL SYSTEM  
Composing, in order from an object side along the optical axis, a first lens group having positive refractive power, and at least one lens group; upon varying magnification, an interval between...
US20170153429 ZOOM LENS  
A zoom lens including first to seventh lens units arranged in this order from an object side to an image side is provided. The first to seventh lens units respectively have refractive powers of...
US20170139190 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 a positive refractive power, a second lens unit having a negative refractive power, a third lens unit...
US20170139189 ZOOM LENS AND CAMERA DEVICE  
The zoom lens comprises five or more groups of lens pieces, namely, the foremost or first lens group of positive refractive power located the closest to an object, the succeeding second lens group...
US20170108676 ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME  
Provided is a zoom lens, including first to fourth lens units having positive, negative, positive, and positive refractive powers and a rear lens unit, which are arranged in order from object side...
US20170090170 ZOOM LENS AND IMAGING APPARATUS  
A zoom lens is constituted by, in order from the object side: a positive first lens group; a negative second lens group; a positive third lens group; a positive fourth lens group; a negative fifth...
US20170082841 ZOOM LENS AND CAMERA DEVICE  
A zoom lens has in order from the object side, at least a foremost, first lens group having positive refractive power, a succeeding, second lens group having negative refractive power, a third...
US20170075131 ANTI-VIBRATION OPTICAL SYSTEM, TELEPHOTO OPTICAL SYSTEM, BINOCLE, AND ANTI-VIBRATION UNIT  
The object of the present invention is to provide an anti-vibration optical system, a telephoto optical system, a binocle (binoculars), and an anti-vibration unit that are capable of appropriate...
US20170075094 PROJECTION LENS SYSTEM WITH MAGNIFICATION-VARYING CAPABILITY AND PROJECTOR  
A projection lens system includes a first lens group including a 1a-th lens group having a negative refractive power, a 1b-th lens group having a positive or negative refractive power, and a 1c-th...
US20170068075 ZOOM LENS SYSTEM  
A zoom lens system includes a positive first lens group, a negative second lens group, a positive third lens group, a negative fourth lens group, and a positive fifth lens group, in that order...
US20170052351 LENS BARREL, LENS DRIVING DEVICE, AND IMAGE PICKUP APPARATUS  
A lens barrel that is capable of miniaturizing and thinning an image pickup apparatus by enabling to switch manual lens drive and electric lens drive with a simple mechanism. A lens barrel is...
US20160349492 ZOOM LENS AND IMAGE PICKUP APPARATUS HAVING THE SAME  
A zoom lens has a first positive lens unit having a positive refractive power, a second positive lens unit arranged adjacent to the first positive lens unit on its image side, a third positive...
US20160349491 ZOOM LENS, AN OPTICAL APPARATUS, AND A MANUFACTURING METHOD OF THE ZOOM LENS  
A first lens group (G1) having a positive refractive power, a second lens group (G2) having a negative refractive power, a third lens group (G3) having a positive refractive power, a fourth lens...
US20160341941 LENS DEVICE AND CORRECTION METHOD FOR LENS DEVICE  
This invention provides a lens device and a correction method therefor whereby the focal position of the lens device can be corrected with high accuracy even if a lens surface shape or the like is...
US20160341940 ZOOM LENS, OPTICAL DEVICE, AND METHOD FOR MANUFACTURING ZOOM LENS  
In a zoom lens comprising a first lens group (G1) having positive refractive power, a second lens group (G2) having negative refractive power, a third lens group (G3) having positive refractive...
US20160334608 ZOOM LENS DRIVING DEVICE AND ZOOM LENS  
A zoom lens driving device and a zoom lens. The driving device comprises a focus motor (402) and a zoom motor (403) that are respectively used for driving a first focus lens group (411) and a...
US20160274341 ZOOM LENS AND IMAGING APPARATUS  
A zoom lens consists of, in order from the object side, a positive first lens group that is fixed during magnification change, at least three movable lens groups that are moved during...
US20160274340 ZOOM LENS AND IMAGING APPARATUS  
A zoom lens consists of, in order from the object side, a positive first lens group that is fixed during magnification change, at least two movable lens groups that are moved during magnification...
US20160259155 ZOOM LENS AND IMAGING APPARATUS  
A zoom lens consists of five lens groups consisting of, in order from the object side, positive, negative, positive, positive, and positive lens groups, wherein the first and fifth lens groups are...
US20160216496 VARIABLE POWER OPTICAL SYSTEM, OPTICAL APPARATUS AND MANUFACTURING METHOD FOR VARIABLE POWER OPTICAL SYSTEM  
Provided is a variable power optical system (ZL) used for an optical apparatus such as a camera (1). The variable power optical system (ZL) includes, in order from an object: a first lens group...
US20160202453 ZOOM LENS AND CAMERA DEVICE INCORPORATING THE SAME  
Provided are: a zoom lens which exhibits a large variable-power ratio, an increased degree of freedom with respect to aberration correction, and which has been achieved having a sufficient...
US20160195703 ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME  
A zoom lens including: a positive first lens unit; a negative second lens unit; and a positive rear lens group, an interval of adjacent lens units is changed during zooming, the rear lens group...
US20160187627 ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME  
Provided is a zoom lens, comprising, in order from object side to image side: first positive, second negative and third positive lens units and a rear lens group including at least one lens unit,...
US20160161725 ZOOM LENSES AND IMAGE PICKUP APPARATUS INCLUDING THE ZOOM LENSES  
A zoom lens include, from an object side, a first magnification-varying group, an aperture stop and a second magnification-varying group, the first magnification-varying group including: a...
US20160154226 ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME  
Provided is a zoom lens, including, in order from an object side to an image side: first to fourth lens units respectively having positive, negative, positive and negative refractive powers; and a...
US20160154222 ZOOM LENS AND IMAGING APPARATUS  
A zoom lens is constituted by, in order from the object side: a positive first lens group; a negative second lens group; a positive third lens group; a negative fourth lens group; and a positive...
US20160154221 ZOOM LENS AND IMAGING APPARATUS  
A zoom lens includes, in order from the object side: a positive first lens group; a negative second lens group; a positive third lens group; a negative fourth lens group; and a positive fifth lens...
US20160154219 ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME  
Provided is a zoom lens, including, in order from an object side to an image side: a positive first lens unit; a negative second lens unit; a positive third lens unit; and a rear lens group...
US20160154217 ZOOM LENS AND IMAGING APPARATUS HAVING 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...
US20160147049 ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME  
A zoom lens includes, in order from an object side: first to fifth lens units respectively having positive, negative, positive, positive, and positive or negative refractive powers. The first lens...
US20160147048 ZOOM LENS AND IMAGE PICKUP APPARATUS INCLUDING THE SAME  
Provided is a zoom lens, comprising, 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...
US20160147047 ZOOM LENS SYSTEM  
A zoom lens system includes a positive first lens group, a negative second lens group, a positive third lens group, a negative fourth lens group, and a positive fifth lens group having a plurality...
US20160139374 ELECTRONIC IMAGE PICKUP SYSTEM  
The invention relates to an electronic image pickup system whose depth dimension is extremely reduced, taking advantage of an optical system type that can overcome conditions imposed on the...

Matches 251 - 300 out of 369 < 1 2 3 4 5 6 7 8 >