Nikon Corporation

Mitsubishi Jukogyo Kabushiki Kaisha

Mitsubishi Electric Corporation

Mitsubishi Heavy Industries Limited

Jfe Steel Corporation

Jfe Galvanizing & Coating Co., Ltd.

Susumu Sato

Shozo Kaneko

Yoshinori Kobayashi

Shinji Matsumoto

Kazuto Kobayashi

Akira Hashimoto

Satoshi Uchida

Takuya Suzuki

Minoru Hashimoto

Satoru Ando

Yasuhiro Yamauchi

Shigeo Udagawa

Kimishiro Tokuda

Daisaku Arai

Mamoru Yoshida

Kazuyoshi Inami

Tadashi Gengo

Yoshinori Hyakutake

Marie Shimoyama

Shigeru Takano

Tsutomu Tamaki

Akihiko Furuta

Katsuhiko Shinoda

Koichi Matsuo

Tsugio Yamamoto

Toshiyuki Takegawa

Norio Murayama

Kousuke Yasooka

Masayasu Sakai

Norichika Kai

Joji Ichinari

Hideaki Ohta

Shuya Nagayama

Yoshiyuki Takeuchi

Tatsuo Kabata

Rie Umebayashi

Yoshiyuki Wakabayashi

Hideo Koumura

Yoshito Furuya

Keiji Takeno

Hideo Ogishi

Yajyuro Seike

Misao Yamamura

Jiro Takada

Shozou Kaneko

Tsuneo Fukuda

Misa Kawamura

Takeshi Sueda

An imaging device () is configured by being provided with an image pickup element () where an imaging surface () having a concave surface facing an object side is formed, an imaging optical system () which forms an image on the imaging surface () in a range smaller than the imaging surface (), and an oscillating drive section () which oscillating-drives the imaging optical system () so that a direction of an optical axis Z of the imaging optical system changes. The imaging element () captures a first formed by the imaging optical system () with a direction of the optical axis Z set to a first direction and a 2nd formed by the imaging optical system () with a direction of the optical axis Z set to a 2nd direction, in different regions in the imaging surfaces ().

Imaging device, imaging optical system, method for manufacturing imaging device, and imaging method

An optical element Oc comprising, in order from an object side: a first segment group Grhaving positive refractive power; a second segment group Grhaving positive refractive power; a third segment group Grhaving negative refractive power; and a fourth segment group Grhaving positive refractive power; focusing on a near-distance object point from an infinite-distance object point being conducted by moving said first segment group Gralong an optical axis, said third segment group Grbeing moved in a direction including a component perpendicular to the optical axis, and said optical element having positive refractive power on the whole, thereby providing an optical element including both of the focusing lens and the vibration reduction lens and capable of downsizing an imaging optical system including this optical element and acquiring a high image forming performance.

Optical element, zoom lens, optical apparatus, method for manufacturing optical element and method for manufacturing zoom lens

A hot-dip Zn&#x2014;Al alloy coated steel sheet exhibiting a beautiful coating appearance with metallic luster, in which no spangle or very fine spangles are formed, and having excellent blackening resistance and a method for manufacturing the hot-dip Zn&#x2014;Al alloy coated steel sheet are provided. The hot-dip Zn&#x2014;Al alloy coated steel sheet includes a hot-dip Zn&#x2014;Al alloy coating layer containing 1.0 to 10 percent by mass of Al, 0.2 to 1.0 percent by mass of Mg, 0.005 to 0.1 percent by mass of Ni, and the balance being Zn and incidental impurities on at least one surface of a steel sheet. The manufacturing method includes the steps of dipping the steel sheet into a hot-dip Zn&#x2014;Al alloy coating bath and pulling up and cooling the steel sheet, wherein the steel sheet pulled up from the coating bath is cooled to 250&#xb0; C. at a cooling rate of 1&#xb0; C. to 15&#xb0; C./sec.

Hot-dip Zn&#x2014;Al alloy coated steel sheet and producing method therefor

A zoom lens ZL, which is mounted on an electronic still cameraor the like, is composed of, in order from the object side, a first lens unit Ghaving a positive refractive power, a second lens unit Ghaving a negative refractive power, a third lens unit Ghaving a positive refractive power, a fourth lens unit Ghaving a negative refractive power, and a fifth lens unit Ghaving a positive refractive power. The first lens unit Ghas, in order from the object side, a negative meniscus lens with a convex surface on the object side, and a positive lens, and the second lens unit Ghas, in order from the object side, a negative meniscus lens with a convex surface on the object side, a biconcave lens, and a positive lens. The zoom lens satisfies a condition of the following expression:0.005&#x3c;(&#x2212;2)&#xd7;3/(1)&#x3c;0.023,

Zoom lens, optical apparatus with the zoom lens, and method of manufacturing zoom lens

A high-frequency module has an antenna configured by integrally connecting a slot plate laid out with radiation slots to a plate having plural thin plates formed with a waveguide for supplying power to the slot plate, using a diffusion bonding. The waveguide of the antenna is connected to a dielectric waveguide of a high-frequency package via a waveguide provided on a resin substrate, thereby configuring a slot antenna at low cost, and connecting a power-supply slot of the slot antenna to a waveguide terminal of the high-frequency package with low loss.

High frequency module

A zoom lens is provided with comprising a plurality of lens groups including, in order from an object, a first lens group Ghaving positive refractive power, a second lens group Ghaving negative refractive power, a third lens group G, and a fourth lens group G, upon zooming from a wide-angle end state W to a telephoto end state T, a distance between the first lens group Gand the second lens group Gincreasing, a distance between the second lens group Gand the third lens group Gdecreasing, and the most image side lens group among the plurality of lens groups moving along an optical axis with a trajectory having convex shape facing the object side, and given conditional expressions being satisfied, thereby excellently correcting chromatic aberration in a farther away shooting range, capable of having excellent optical performance with being compact.

Zoom lens and optical apparatus equipped therewith

A zoom lens is provided with comprising a plurality of lens groups including, in order from an object side, a first lens group Ghaving positive refractive power, a second lens group Ghaving negative refractive power, a third lens group G, and a fourth lens group G, the third lens group Gincluding, in order from the object side, a first positive lens of the third lens group, a negative lens of the third lens group, and a second positive lens of the third lens group, and a given conditional expression being satisfied, thereby excellently correcting chromatic aberration in a farther away shooting range, capable of having excellent optical performance with being compact.

A zoom lens includes a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a fourth lens group having a positive refractive power, which are disposed in order from an object along the optical axis, wherein the third lens group comprises: a pre-group, which has a first positive lens, a negative meniscus lens having a convex surface facing the object, a second positive lens, and which has a positive refractive power; and a negative meniscus lens having a convex surface facing the object, which are disposed in order from the object; at least one of three surfaces of an object side and image side lens surfaces of the first positive lens and an object side lens surface of the negative meniscus lens is aspherical; and at least one of three surfaces of an object side lens surface of the second positive lens, and an object side and image side lens surfaces of the negative meniscus lens is aspherical.

Zoom lens and optical apparatus and method for manufacturing thereof

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 reduction. The imaging apparatus comprising: a high zoom ratio zoom lensincluding, in order from the object, a first positive group, a second negative group, a third group, a fourth group, and a fifth group, upon zooming the first through fourth groups are moved along an optical axis; an imaging device capturing an image formed by the lens; a detector detecting variation in an image position; a driver moving the imaging device substantially perpendicularly to the optical axis; a controller controlling the driver for correcting variation in the image position; and a shield with an aperture for limiting bundle of rays incident on the periphery of the most object side lens in the lens; and given condition is satisfied.

Imaging apparatus, imaging method and high zoom ratio zoom lens system

Providing a compact zoom lens exhibiting optical performance, of which a chromatic aberration in a telephoto state is well corrected. The zoom lens includes a plurality of lens groups, the plurality of lens groups includes at least three lens groups with positive refractive power, each of the three lens groups with positive refractive power has a positive lens, and given conditional expressions are satisfied.

Zoom lens and optical apparatus having zoom lens

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 3.5&#xb0; or less in the telephoto end, an f-number of 6 or less in the telephoto end, and a zoom ratio of about 10 or more. The system is composed of a first group having positive power, a second group having negative power, a third group having positive power , and a fourth group having positive power. The first group is composed of, in order from the object, a negative meniscus lens having a convex surface facing the object, a first positive lens having a convex surface facing the object, and a second positive lens. All groups moves along the optical axis upon zooming from a wide-angle end to a telephoto end. Given conditions are satisfied.

High zoom ratio zoom lens system

A high-zoom-ratio zoom lens having superb optical performance despite compactness and a high zoom ratio. The lens includes, in order from an object, a first group having positive power; a second group having negative power; a third group having positive power; and a fourth group having positive power. The third group includes, in order from the object, a first positive lens having a convex surface facing the object, a second positive lens having a convex surface facing the object, a double concave negative lens having a radius of curvature of the image side surface smaller than that of the object side surface, and a third positive lens having a double convex shape. Any of lens surfaces composing the third group is an aspherical surface. Upon zooming from a wide-angle end to a telephoto end, all groups moving along the optical axis. Given condition is satisfied.

High zoom ratio zoom lens, optical apparatus using the same, and method for varying focal length

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 3.5&#xb0; or less in the telephoto end, an f-number of 6 or less in the telephoto end, and a zoom ratio of about 10 or more. The system is composed of a first group having positive power, a second group having negative power, a third group having positive power, and a fourth group having positive power. The first group is composed of, in order from the object, a negative meniscus lens having a convex surface facing the object, a first positive lens having a convex surface facing the object, and a second positive lens. All groups moves along the optical axis upon zooming from a wide-angle end to a telephoto end. Given conditions are satisfied.

Providing a zoom lens system having a high zoom ratio, a small diameter of the first lens group, capable of being effectively retracted upon retracting the lens barrel. The system includes, in order from an object, a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group having positive refractive power, and a fifth lens group having positive refractive power. When zooming from a wide-angle end state to a telephoto end state, the first, second, third, and fourth lens groups move along an optical axis and the second lens group moves along a zoom trajectory being concave to the object. The fourth lens group is composed of a front lens group having positive power and a rear lens group having negative power with a space in between. Given conditional expressions are satisfied.

Zoom lens system

The object is to provide an afocal zoom lens system with the f-number of about 4 or less capable of performing vibration reduction correction. The system includes, in order from an object, a first group Gbeing positive, a second group Gbeing negative, a third group Gbeing positive, and a fourth group Gbeing positive. Zooming is performed by moving the second and third groups along the optical axis. The fourth group Gis composed of a front group GF being positive, a middle group GM being negative, and a rear group GR being positive. Vibration reduction is performed by shifting the middle group GM perpendicular to the optical axis. The first group Gconsists of a first front group Gf being fixed, a first middle group Gm being movable, and a first rear group Gr being fixed. Focusing is performed by moving Gm along the optical axis.

Growing community of inventors

Yotsukaido, Japan

Susumu Sato