Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2013161995) ZOOM LENS, IMAGE-CAPTURING DEVICE, AND DIGITAL INSTRUMENT
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2013/161995 International Application No.: PCT/JP2013/062375
Publication Date: 31.10.2013 International Filing Date: 26.04.2013
IPC:
G02B 15/167 (2006.01) ,G02B 7/08 (2006.01) ,G02B 13/18 (2006.01) ,G03B 5/00 (2006.01) ,G03B 17/17 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
15
Optical objectives with means for varying the magnification
14
by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
16
with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
163
having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group
167
having an additional fixed front lens or group of lenses
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
7
Mountings, adjusting means, or light-tight connections, for optical elements
02
for lenses
04
with mechanism for focusing or varying magnification
08
adapted to co-operate with a remote control mechanism
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
13
Optical objectives specially designed for the purposes specified below
18
with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
5
Adjustment of optical system relative to image or object surface other than for focusing of general interest for cameras, projectors or printers
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
17
Details of cameras or camera bodies; Accessories therefor
02
Bodies
17
with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
Applicants:
コニカミノルタ株式会社 KONICA MINOLTA, INC. [JP/JP]; 東京都千代田区丸の内二丁目7番2号 2-7-2 Marunouchi, Chiyodaku, Tokyo 1007015, JP
Inventors:
尾崎雄一 OZAKI, Yuichi; JP
Agent:
福田充広 FUKUDA, Mitsuhiro; 東京都千代田区内神田2丁目5番3号 児谷ビル1階 Kotani Bldg. 1F, 5-3 Uchikanda 2-chome, Chiyoda-ku Tokyo 1010047, JP
Priority Data:
2012-10420227.04.2012JP
Title (EN) ZOOM LENS, IMAGE-CAPTURING DEVICE, AND DIGITAL INSTRUMENT
(FR) OBJECTIF ZOOM, DISPOSITIF DE CAPTURE D'IMAGE ET INSTRUMENT NUMÉRIQUE
(JA) ズームレンズ、撮像装置、及びデジタル機器
Abstract:
(EN) Provided is a zoom lens that has a light-beam incident angle appropriate for an image-capturing element while allowing compactness in the thickness direction. The zoom lens comprises, in order from the object side, a first lens group having negative refractive power, a second lens group having positive refractive power, a third lens group having negative refractive power, and a fourth lens group, power being varied by changing the gap between adjacent lens groups, wherein the gap between the first lens group and the second lens group is reduced when moving from a wide-angle end to a telephoto end; the first lens group includes a reflective optical element having a bending effect on a light path by reflecting light rays; and the fourth lens group comprises at least two lenses, has a negative-refraction lens closest to the image and satisfies the conditional expression 0.5<|f4N/(fW×fT)1/2|<1.5 (f4N is the focal distance of the lens closest to the image of the fourth lens group, fW is the focal distance of the complete system at the wide-angle end, and fT is the focal distance of the complete system at the telephoto end).
(FR) L'invention concerne un objectif zoom qui comporte un angle d'incidence de faisceau lumineux approprié pour un élément de capture d'image tout en permettant une compacité dans la direction de l'épaisseur. L'objectif zoom comprend, dans l'ordre à partir du côté objet, un premier groupe de lentilles ayant une réfringence négative, un deuxième groupe de lentilles ayant une réfringence positive, un troisième groupe de lentilles ayant une réfringence négative, et un quatrième groupe de lentilles, la puissance variant en changeant l'espace entre les groupes de lentilles adjacents, l'espace entre le premier groupe de lentilles et le deuxième groupe de lentilles étant réduit lors du passage d'une extrémité grand-angle à une extrémité téléobjectif ; le premier groupe de lentilles comprenant un élément optique réfléchissant ayant un effet de courbure sur un chemin de lumière par réflexion de rayons lumineux ; et le quatrième groupe de lentilles comprenant au moins deux lentilles, ayant une lentille de réfraction négative la plus proche de l'image et satisfaisant l'expression conditionnelle 0,5<|f4N/(fW×fT)1/2|<1,5 (f4N est la distance focale de la lentille la plus proche de l'image du quatrième groupe de lentilles, fW est la distance focale du système complet au niveau de l'extrémité grand angle, et fT est la distance focale du système complet au niveau de l'extrémité téléobjectif).
(JA)  厚さ方向のコンパクト化を達成しつつ、さらに撮像素子に適した光線入射角度を示すズームレンズを提供する。ズームレンズは、物体側より順に、負の屈折力を有する第1レンズ群と、正の屈折力を有する第2レンズ群と、負の屈折力を有する第3レンズ群と、第4レンズ群とから構成され、隣接するレンズ群の間隔を変えることにより変倍を行うズームレンズであって、広角端から望遠端に至る変倍で第1レンズ群と第2レンズ群との間隔が縮小し、第1レンズ群は、光線を反射させることで光路を折り曲げる作用を持つ反射光学素子を含み、第4レンズ群は、少なくとも2枚のレンズから構成され、最も像側に負の屈折力のレンズを有し、以下の条件式を満足する。 0.5<|f4N/(fW×fT)1/2|<1.5 … (1) ただし、 f4N:第4レンズ群の最も像側のレンズの焦点距離 fW:広角端における全系の焦点距離 fT:望遠端における全系の焦点距離
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)