Three Groups Patents (Class 359/689)
  • Patent number: 11194136
    Abstract: An optical system includes: a first lens group with negative refractive power at an object side of an aperture stop; a second lens group with positive refractive power at an image plane side of the aperture stop; and a third lens group with positive refractive power at the image plane side of the second lens group. The first lens group includes a first lens with negative refractive power and concave image plane side, a second lens of meniscus type, with negative refractive power, and convex image plane side, and a third lens with positive refractive power and convex object side. The second lens group includes a fourth lens with positive refractive power and convex image plane side; a fifth lens of meniscus type, with negative refractive power, and convex object side; and a sixth lens with negative refractive power and concave object side.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: December 7, 2021
    Assignee: NITTOH INC.
    Inventor: Kenji Iijima
  • Patent number: 11181719
    Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging plane of the optical imaging system, wherein the first to seventh lenses are spaced apart from each other along the optical axis, and the optical imaging system satisfies 0.4<L1TR/L7TR<1.9, where L1TR is an overall outer diameter of the first lens, L7TR is an overall outer diameter of the seventh lens, and L1TR and L7TR are expressed in a same unit of measurement.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: November 23, 2021
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hag Chul Kim, Eun Chong Lee, Yong Joo Jo, Ga Young An
  • Patent number: 11156804
    Abstract: The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The first lens is made of plastic material, the second lens is made of plastic material, the third lens is made of glass material, the fourth lens is made of plastic material, the fifth lens is made of plastic material and the sixth lens is made of glass material. The camera optical lens further satisfies specific conditions.
    Type: Grant
    Filed: July 27, 2019
    Date of Patent: October 26, 2021
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Kenji Oinuma, Lei Zhang, Yanmei Wang, Yingnan Zhang
  • Patent number: 11143836
    Abstract: A zoom lens includes a first lens group with a negative refractive power, a second lens group with a positive refractive power, and a third lens group with a positive refractive power. When the zoom lens changes from a wide angle end to a telephoto end, a spacing between the first lens group and the second lens group is reduced, and a spacing between the second lens group and the third lens group changes. The first lens group includes a first lens, a second lens, a third lens, and a fourth lens. Refractive powers of the first lens, the second lens, and the third lens are negative, and a refractive power of the fourth lens is positive. Abbe numbers of the first lens, the second lens, and the third lens are larger than 60. A ratio of a focal length of the first lens group over a focal length of the zoom lens at a wide angle end is larger than ?2.5 and smaller than ?1.2.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: October 12, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Shigehiko Matsunaga, Atsushi Ohata, Atsuo Minato
  • Patent number: 11137583
    Abstract: A plurality of lens units of a zoom lens according to an aspect of the embodiments includes a first lens unit having a negative refractive power, and a rear lens group which includes one or more lens units and has a positive refractive power as a whole. The first lens unit consists of a first negative lens, a second negative lens, and a positive lens which are disposed in order from an object side to an image side. A specific gravity of the first negative lens, a focal length of the second negative lens, and a focal length of the first lens unit are appropriately determined.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: October 5, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Makoto Nakahara
  • Patent number: 11106017
    Abstract: The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens having a positive refractive power, a third lens having a positive refractive power, a fourth lens, a fifth lens, and a sixth lens. The first lens is made of plastic material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of glass material, the fifth lens is made of plastic material, and the sixth lens is made of glass material. The camera optical lens further satisfies specific conditions.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: August 31, 2021
    Assignee: AAC Optics Solutions Pte. Ltd.
    Inventors: Kenji Oinuma, Lei Zhang, Yanmei Wang, Yaqiong Guo
  • Patent number: 10991134
    Abstract: Systems and methods described herein are directed towards controlling a level of detail for geostreaming data. In some examples, an identifying event data that includes location information. A polygon may be defined that comprises points on a map corresponding to the event data. A first level of detail may be determined and a fidelity of the polygon may be changed based at least in part on the first level of detail. Second event data may be received that identifies a location of an object. It may be identified whether the object is within the location information and a user interface may be prepared that presents whether the object is in an affected area.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: April 27, 2021
    Assignee: Oracle International Corporation
    Inventors: Hoyong Park, Iuliia Shmeleva, Ilya Sergeyevich Shikalov
  • Patent number: 10949963
    Abstract: The present invention relates to an inspection system and more particularly to a system and method for inspection of wet ophthalmic lens, preferably in an automated lens manufacturing line. The inspection system provides for capturing multiple images of an ophthalmic lens using multiple cameras, each with a customized optical unit which may use wavelength filters, and the ophthalmic lens illuminated by multiple lighting modules each configured for a different wavelength, or a different polarization and triggered to strobe the illumination at the same instance or at different instances in the time domain. Suitable filters used in the optical module for each camera ensures appropriate images at different illuminating wavelength, especially when all the illuminations are strobed at the same time. Images captured and inspected by this configuration aids in improvement in method of inspection with enhanced degree of reliability and quality.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: March 16, 2021
    Assignee: EMAGE VISION PTE. LTD.
    Inventors: Soon Wei Wong, Wen Sen Zhou, Sergey Smorgon, Kundapura Parameshwara Srinivas
  • Patent number: 10935761
    Abstract: Large aperture compact lens and a camera design using the lens are described. The lens comprises from object to image, three lens groups with a first lens group having a negative or positive power and comprising 3-4 lens elements, a second lens group having positive power and 3-4 elements including an aperture stop, at least one cemented doublet and one positive power lens made from athermic optical material, and a third lens group comprising 1-3 elements.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: March 2, 2021
    Inventor: Alex Ning
  • Patent number: 10838200
    Abstract: An optical system includes a first lens unit that has a positive refractive power; a second lens unit that is arranged to move during focusing and has a positive or negative refractive power; and a third lens unit that has a positive or negative refractive power. The first lens unit, the second lens unit, and the third lens unit are disposed in that order from an object side to an image side. During the focusing, an interval between adjacent lens units changes. In the optical system, a focal length f of the entire optical system, a distance LD along an optical axis from a lens surface of the first lens unit that is closest to the object side to an image plane, a material of positive lenses included in the first lens unit, and an arrangement of the positive lenses included in the first lens unit are appropriately set.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: November 17, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuichi Gyoda, Suguru Inoue, Shigenobu Sugita
  • Patent number: 10782508
    Abstract: An imaging apparatus and a method for producing the same are provided. The imaging apparatus includes a display panel, including a first face and a second face arranged opposite to each other; an imaging device on the second face of the display panel; and an optical assembly in an optical path where ambient lights pass through the first face and the second face in sequence and enter the imaging device, the optical assembly being configured to refract at least part of the ambient lights so that the refracted lights bypass shielding members in the display panel and are incident on the imaging device.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: September 22, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jifeng Tan, Liqiang Chen, Jian Gao
  • Patent number: 10775604
    Abstract: An objective optical system for endoscope consists of, in order from an object side, a first negative lens L1 which is planoconcave, and of which a flat surface is directed toward the object side, a second meniscus lens L2 having a convex surface directed toward an image side, a third positive meniscus lens L3 having a convex surface directed toward the object side, a fourth positive lens L4, and a cemented lens in which fifth positive lens L5 and a sixth negative lens L6 are cemented. Focusing is carried out by the third positive meniscus lens moving along an optical axis AX, and the following conditional expressions (1-1) and (1-2) are satisfied: 0.41<|flp/f2<1??(1-1), and 0.55<d45/flp<1??(1-2).
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: September 15, 2020
    Assignee: OLYMPUS CORPORATION
    Inventor: Hiroto Matsuura
  • Patent number: 10739578
    Abstract: Near-to-eye systems and head-mounted displays and more particularly but not exclusively to an optimized freeform wedge-shaped prism design having free-form surfaces efficiently mathematically represented and configured to provide both high resolution and a large exit pupil heretofore unachieved.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: August 11, 2020
    Assignee: THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
    Inventors: Hong Hua, Jason W Kuhn
  • Patent number: 10656387
    Abstract: An imaging lens includes a first lens group and a second lens group, arranged in this order from an object side to an image plane side. The first lens group includes a first lens, a second lens, and a third lens. The second lens group includes a fourth lens, a fifth lens having positive refractive power, a sixth lens having two aspheric surfaces, and a seventh lens having two aspheric surfaces. The imaging lens has a total of seven single lenses. The first to seventh lenses are arranged respectively with a space in between. The third lens is formed in a shape so that a surface on the object side is convex. The fourth lens is formed in a shape so that a surface on the object side is concave. The fifth lens is formed in a shape so that a surface on the image plane side is concave.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: May 19, 2020
    Assignee: KANTATSU CO., LTD.
    Inventors: Yoji Kubota, Kenichi Kubota, Hitoshi Hirano, Hisao Fukaya
  • Patent number: 10634878
    Abstract: A zoom lens includes a unit LN, a unit LP and a rear group LR, and the rear group LR has a positive unit LRP on a side closest to an image, where the unit LRP includes a positive lens GRP that has a meniscus shape having a convex surface facing the image side thereof and made of resin material. Focal lengths of the zoom lens at wide-angle end, the unit LRP, and the unit LP, back focus at telephoto end, an amount of movement of the unit LRP when zooming from wide-angle end to telephoto end, thickness on an optical axis of the positive lens GRP, and a distance in optical axis direction between center on a lens surface on object side of the positive lens GRP and an end of an effective surface of the lens surface on the object side are each appropriately set.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: April 28, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Daisuke Ito
  • Patent number: 10627610
    Abstract: The zoom lens of the present invention includes a positive lens unit LP (LULP) disposed closest to an object side, a negative lens unit LNF (LULNF) disposed at an image side of LULP, and an aperture stop disposed at image side of LULNF. The zoom lens further includes at image side of aperture stop, successively in order from object side to image side, a positive lens unit LP1, a negative lens unit LN1 (LULN1), a positive lens unit LP2 (LULP2), and a negative lens unit LN2 (LULN2), in which intervals between adjacent lens units are changed during zooming. LULN1 moves during focusing. The focal length and the total length of zoom lens at a telephoto end, the changing amount from interval between LULP2 and LULN2 at a wide angle end to that at telephoto end, and the total length of zoom lens at wide angle end are appropriately set.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: April 21, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shigenobu Sugita
  • Patent number: 10620403
    Abstract: An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive power. The seventh lens has negative refractive power, wherein both surfaces thereof can be aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: April 14, 2020
    Assignee: ABILITY OPTO-ELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Chien-Hsun Lai, Nai-Yuan Tang, Yeong-Ming Chang
  • Patent number: 10620401
    Abstract: An optical system includes a plurality of lenses. The distance from the object side lens surface of a lens arranged an the most object side to the image plane is longer than the focal length of the entire system. The material of a positive lens G1p arranged on the most object side among positive lenses included in the optical system, and the arrangement and material of a negative lens Gn located on the most object side among negative lenses arranged an the image side of the positive lens G1p are appropriately set.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: April 14, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shigenobu Sugita, Yuichi Gyoda, Suguru Inoue
  • Patent number: 10593076
    Abstract: Systems and methods described herein are directed towards controlling a level of detail for geostreaming data. In some examples, an identifying event data that includes location information. A polygon may be defined that comprises points on a map corresponding to the event data. A first level of detail may be determined and a fidelity of the polygon may be changed based at least in part on the first level of detail. Second event data may be received that identifies a location of an object. It may be identified whether the object is within the location information and a user interface may be prepared that presents whether the object is in an affected area.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: March 17, 2020
    Assignee: Oracle International Corporation
    Inventors: Hoyong Park, Iuliia Shmeleva, Ilya Sergeyevich Shikalov
  • Patent number: 10594944
    Abstract: Provided is a zoom lens, including, in order from an object side, a positive first lens unit, a negative second lens unit, a positive third lens unit, a negative fourth lens unit, and a positive fifth lens unit, in which an interval between each pair of adjacent lens units is changed during zooming, in which the second lens unit moves during focusing, and includes, in order from the object side to the image side, a negative lens, a negative lens, a positive lens, and a negative lens, and in which a focal length of the second lens unit, a thickness of the second lens unit on an optical axis, a refractive index of a material of the positive lens included in the second lens unit, and an average value of refractive indices of materials of the negative lenses included in the second lens unit are each appropriately set.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: March 17, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yasuaki Hagiwara
  • Patent number: 10571651
    Abstract: Provided is the image pickup optical system including a first lens unit, a second lens unit, and a third lens unit disposed in an order from an object side to an image side, in which an interval between adjacent lens units is changed during focusing. The third lens unit includes an aperture stop. A distance on an optical axis from a lens surface closest to object side to aperture stop when focused at infinity Lf, a distance on optical axis from aperture stop to a lens surface closest to image side when focused at infinity Lr, a distance on optical axis from a lens surface closest to object side to an image plane when focused at infinity L, a focal length of the entire system f, and a moving amount of first lens unit during focusing from infinity to a closest distance M are appropriately set.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: February 25, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hideki Sakai
  • Patent number: 10509204
    Abstract: The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The camera optical lens further satisfies specific conditions.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: December 17, 2019
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Chunhuan Fang, Lei Zhang, Yanmei Wang
  • Patent number: 10451841
    Abstract: A lens module includes a first lens, an object-side surface thereof being convex; a second lens, both surfaces thereof being convex; a third lens, both surfaces thereof being concave; a fourth lens having negative refractive power, both surfaces thereof being convex; a fifth lens, an object-side surface thereof being concave; and a sixth lens, an object-side surface thereof being convex. The first to sixth lenses are sequentially disposed in numerical order from the first lens to the sixth lens from an object side of the lens module toward an image side of the lens module.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: October 22, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Jin Hwa Jung
  • Patent number: 10416410
    Abstract: The imaging lens consists of, in order from the object side, a first lens group having a positive power, a second lens group having a negative power, and a third lens group. The first lens group consists of, in order from the object side, a positive front group, a diaphragm, and a positive rear group. The front group has a negative lens and a positive lens, the rear group has a negative lens and a positive lens, the second lens group consists of one negative lens, and the third lens group has a negative lens and a positive lens. During focusing, only the second lens group moves. The following conditional expression relating to a focal length of the second lens group and a focal length of the third lens group is satisfied: 2.5<|f3/f2|.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: September 17, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Daiki Kawamura
  • Patent number: 10324275
    Abstract: An imaging lens includes first, second, third, fourth, fifth, sixth and seventh lens elements arranged in a sequence from an object side to an image side along an optical axis. Each lens element has an object-side surface and an image-side surface. The object-side of the third lens element has a convex portion in a vicinity of a periphery. The object-side of the fifth lens element has a convex portion in a vicinity of the optical axis and a concave portion in a vicinity of a periphery. The object-side of the sixth lens element has a concave portion in a vicinity of a periphery. All of lens elements having refracting power of the imaging lens are the first, second, third, fourth, fifth, sixth and seventh lens elements.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: June 18, 2019
    Assignee: GENIUS ELECTRONIC OPTICAL (XIAMEN) CO., LTD.
    Inventors: Hung-Chien Hsieh, Binwei Zhang, Xiaohui Zhang
  • Patent number: 10306121
    Abstract: A method of manufacturing a camera module that is low profile and that can achieve superior resolving power, a camera module, and an imaging device are provided. A positioning step of positioning an object-side group optical unit (12a) along an optical axis direction with the use of a jig (40) such that the object-side group optical unit (12a) is located so as not to be in contact with an image-plane-side group lens (32a) and a fixing step of fixing the object-side group optical unit (12a) to a lens holder (20) are included.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: May 28, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Norimichi Shigemitsu, Yoshihiro Sekimoto, Masahiro Nakamura, Tetsuya Fujimoto
  • Patent number: 10281696
    Abstract: The zoom lens includes: a first optical system on a magnification side; and a second optical system on a reduction side in a state where the intermediate image is formed between the magnification side and the reduction side. The first optical system includes, in order from the magnification side, a first-1 lens group which has a positive power, and a first-2 lens group which has a positive power. The second optical system includes, in order from the magnification side, a second-1 lens group which has a positive power, a second-2 lens group which has a positive power, and a second-3 lens group which has a positive power. The first-2 lens group, the second-1 lens group, and the second-2 lens group move during zooming. The first-1 lens group and the second-3 lens group remain stationary during zooming.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: May 7, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Masaru Amano
  • Patent number: 10284762
    Abstract: A system for guidance of an imaging device may include a handheld imaging device, a multidirectional feedback device, and a control unit in communication with the multidirectional feedback device and the handheld imaging device. The control unit may be configured to receive a target location, determine an initial position and pose of the handheld imaging device, calculate a position and pose deviation relative to said initial position and pose, translate said position and pose deviation into control data, and transmit said control data to the multidirectional feedback device, wherein the multidirectional feedback device uses control data to provide an operator with feedback to guide the handheld imaging device towards the target.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: May 7, 2019
    Assignees: Clear Guide Medical, Inc., The Board of Trustees of the Leland Stanford Junior University
    Inventors: Philipp Jakob Stolka, Pezhman Foroughi, Matthew C. Rendina, Gregory Donald Hager, Allison Mariko Okamura
  • Patent number: 10281693
    Abstract: An inverted equal-magnification relay lens includes, in order from an object side: a first lens group having a positive power, and disposed near an object; a second lens group having a positive power, and disposed at a predetermined distance from the first lens group; and a third lens group having a negative power; wherein an entrance pupil position is more toward an object surface side than the first lens group, an exit pupil position is more toward a third lens group side than an image surface, and the following Formulas (1) and (2) are satisfied: 0.65?|G1F/G2F|?2.0 . . . (1); 0.35?|G3F/G2F|?3.1 . . . (2); where: G1F: a focal length of the first lens group; G2F: a focal length of the second lens group; and G3F: a focal length of the third lens group.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: May 7, 2019
    Assignee: NIKON CORPORATION
    Inventor: Tomohiko Yamahiro
  • Patent number: 10114199
    Abstract: An optical imaging system is described including first to sixth lenses sequentially disposed from an object side to an image side, and an image sensor configured to convert incident light reflected from a subject, having passed through the first to sixth lenses, into an electrical signal. One of the first to sixth lenses includes a spherical object-side surface and another of the first to sixth lenses includes corresponding aspherical object-side surfaces. The first to sixth lenses include corresponding aspherical image-side surfaces, and a lens of the first to sixth lenses that is closer to the object side than the one of the first to sixth lenses including the spherical object-side surface, has a highest refractive index among the first to sixth lenses.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: October 30, 2018
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Jung Hui Ko
  • Patent number: 10107989
    Abstract: An optical assembly for a point action camera with a wide field of view includes multiple lens elements configured to provide a field of view in excess of 150 degrees. One or more lens elements has an aspheric surface. The optical assembly exhibits a low inward field curvature of less than 75 microns.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: October 23, 2018
    Assignee: Navitar Industries, LLC
    Inventors: Russell Hudyma, Michael Thomas
  • Patent number: 10006982
    Abstract: The present invention relates to a solar position tracking accuracy measurement system based on an optical lens, by which the solar position tracking accuracy of a tracker can be effectively analyzed and detected in real-time by using a technique on the basis of an astronomical analysis on the trajectory of the sun through an accurate measurement based on an optical lens, thereby establishing the reproducibility of a physical measurement method, calculating an error angle according to the vertical incidence of solar light and minimizing physical errors.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: June 26, 2018
    Assignee: Industry Academic Cooperation Foundation of Nambu University
    Inventors: Byeong Ho Jeong, Ju Hoon Park
  • Patent number: 9880375
    Abstract: Provided is a zoom lens, including: a negative first lens unit; an aperture stop; and a positive second lens unit, in which the first and second lens units are configured to move so that an interval between the first and second lens units is changed in an optical axis direction, in which the second lens unit includes a positive lens and a negative lens, and in which, when refractive indices of a material with respect to a wavelengths of 400 nm, 1,050 nm and 1,700 nm are respectively represented by Ns, Nm and Nl, and a relative partial dispersion ? of the material is expressed as: ?=(Ns?Nm)/(Ns?Nl), an average value ?IR(G2p)AVE of relative partial dispersions of materials of the positive lens in the second lens unit, and an average value ?IR(G2n)AVE of relative partial dispersions of materials of the negative lens in the second lens unit are appropriately set.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: January 30, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masatsugu Nakano
  • Patent number: 9823452
    Abstract: A zoom lens comprising in order from an object side, a first lens unit having a negative refractive power, a second lens unit having a negative refractive power, a lens unit having a positive refractive power, and a rearmost lens unit having a negative refractive power, and the rearmost lens unit is positioned nearest to an image in the plurality of lens units, and at the time of zooming, distances between the lens units in the plurality of lens units change. Moreover, an image pickup apparatus includes the zoom lens, and an image pickup element having an image pickup surface.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: November 21, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Takashi Fujikura, Keisuke Takada
  • Patent number: 9810883
    Abstract: The present invention discloses a photographic optical system which includes a first lens (focal length f1), a second lens (focal length f2), a third lens (focal length f3), a fourth lens (focal length f4), a fifth lens (focal length f5), a sixth lens (focal length f6) and a seventh lens (focal length f7). The photographic optical system disclosed in the present invention by optimizing rationally face shape, distributing focal power, selecting optical material, is designed as a big relative aperture photographic optical system, and can provide the imaging performance in low illumination environment.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: November 7, 2017
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventor: Rongbao Shi
  • Patent number: 9804364
    Abstract: An imaging lens for a solid-state imaging sensor includes, in order from an object side to an image side of the imaging lens, a first through sixth lens. The first lens has positive refractive power. The second lens has positive refractive power. The third lens has negative refractive power. The fourth lens has positive or negative refractive power and aspheric surfaces facing the object side and the image side. The fifth lens has positive refractive power. The sixth lens has negative refractive power and aspheric surfaces facing the object side and the image side.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: October 31, 2017
    Assignee: KANTATSU CO., LTD.
    Inventors: Yukio Sekine, Tomohiro Yonezawa
  • Patent number: 9720208
    Abstract: An inner focusing lens has sequentially from the object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having a negative refractive power. The first lens group has negative meniscus lenses disposed farthest on the object side thereof. The second lens group is moved along the optical axis whereby focusing from a focus state for an object at infinity to a focus state for the minimum object distance is performed. The inner focusing lens satisfies predetermined conditions and thereby, realizes a compact inner focusing lens having high imaging performance at wide angles, suitable for compact cameras having a function of capturing video.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: August 1, 2017
    Assignee: TAMRON CO., LTD.
    Inventor: Keisuke Omori
  • Patent number: 9664884
    Abstract: A projection zoom lens is essentially constituted by, in order from the magnification side: a negative first lens group; a positive second lens group; a third lens group; a positive fourth lens group; a fifth lens group; and a positive sixth lens group. The distance between the first and second lens groups is shorter, the distance between the second and third lens groups is longer, the distance between the third and fourth lens groups is shorter, the distance between the fourth and the fifth lens groups is longer, and the distance between the fifth and sixth lens groups is longer at the telephoto end than at the wide angle end. A lens having a negative refractive power in the paraxial region is provided most toward the magnification side in the first lens group. The fifth lens group has a negative lens.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: May 30, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Akiko Nagahara, Michio Cho
  • Patent number: 9658430
    Abstract: An optical imaging lens includes: a first, second, third and fourth lens element, the first lens element has negative refractive power, the second lens element has an image-side surface with a concave part in a vicinity of the optical axis, the third lens element has positive refractive power, and has an object-side surface with a convex part in a vicinity of the optical axis, the fourth lens element has an image-side surface with a concave part in a vicinity of the optical axis, where the optical imaging lens set does not include any lens element with refractive power other than said first, second, third and fourth lens elements.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: May 23, 2017
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Yanbin Chen, Long Ye, Feng Chen
  • Patent number: 9606338
    Abstract: A zoom lens consists of a negative first lens group, a positive second lens group, and a positive third lens group. Upon zooming from the wide angle end to the telephoto end, the first, second, and third lens groups are moved such that distance between the first lens group and the second lens group is reduced, and distance between the second lens group and the third lens group is increased. The first lens group is composed of a negative lens and a positive lens from the object side. The zoom lens satisfies given conditional expressions related to radius of curvature, center thickness, refractive index, and Abbe number of the negative lens and refractive index of the positive lens of the first lens group, and distance from the most object side surface to the most image side surface of the first lens group on the optical axis.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: March 28, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Taiga Noda
  • Patent number: 9594231
    Abstract: An inner focusing lens has sequentially from the object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group having a negative refractive power. The first lens group has negative meniscus lenses disposed farthest on the object side thereof. The second lens group is moved along the optical axis whereby focusing from a focus state for an object at infinity to a focus state for the minimum object distance is performed. The inner focusing lens satisfies predetermined conditions and thereby, realizes a compact inner focusing lens having high imaging performance at wide angles, suitable for compact cameras having a function of capturing video.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: March 14, 2017
    Assignee: TAMRON CO., LTD.
    Inventor: Keisuke Omori
  • Patent number: 9575296
    Abstract: A zoom lens is provided which has a wide angle of view and is bright and in which the entire lens system is compact and which can achieve high optical characteristic over the entire zoom range.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: February 21, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Tomonori Kimura, Shinji Yamasaki
  • Patent number: 9513465
    Abstract: The present invention provides a camera device and an optical imaging lens thereof. The optical imaging lens comprises six lens elements positioned in an order from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements, the view angle of the optical imaging lens is efficiently increased to shows better optical characteristics.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: December 6, 2016
    Assignee: GENIUS ELECTRONIC OPTICAL CO., LTD.
    Inventors: Sheng Wei Hsu, Tzu Chien Tang, Chih Yang Yeh
  • Patent number: 9509912
    Abstract: A zoom lens including, in order from an object side: a positive first lens unit; a negative second lens unit; and a positive third lens unit, in which: an interval between the first and second lens units is increased, and an interval between the second and third lens units is decreased during zooming from a wide angle end to a telephoto end; the second lens unit is an image stabilizing lens unit which moves with a component of motion in a direction perpendicular to an optical axis whereby an imaging position is moved in the direction of motion perpendicular to the optical axis; and a focal length of an entire system at the wide angle end, a focal length of the first lens unit, and a movement amount of the first lens unit during zooming from the wide angle end to the telephoto end are each set appropriately.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: November 29, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tetsuichirou Okumura
  • Patent number: 9447942
    Abstract: A condensing system and method with a plurality of LEDs is disclosed. The LEDs are positioned on the same plane. A first condensing lens is disposed at front of each LED, a second condensing lens is disposed at front of each first condensing lens, a third condensing lens is disposed at front of each second condensing lens, and a fourth condensing lens is disposed at front of all the third condensing lenses. After the light emitted by each LED is condensed by the corresponding first condensing lens, second condensing lens and third condensing lens, the divergence angle of the light becomes smaller, forming a bunch of nearly parallel light beams. The bunches of nearly parallel light beams simultaneously transmit through the fourth condensing lens, and then combine. The condensing system can be used as the light source with imaging lenses disposed therebehind to form an imaging system.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: September 20, 2016
    Assignee: GUANGZHOU YAJIANG PHOTOELECTRIC EQUIPMENT CO., LTD
    Inventor: Chunrong Li
  • Patent number: 9182575
    Abstract: A zoom lens system having a plurality of lens units, each lens unit being composed of at least one lens element, the zoom lens system, in order from an object side to an image side, comprising: a first lens unit having negative optical power and being composed of at least two lens elements; and a second lens unit having positive optical power, wherein in zooming from a wide-angle limit to a telephoto limit at the time of image taking, the lens units are individually moved along an optical axis to vary magnification such that an interval between the first lens unit and the second lens unit decreases, and the conditions: fW/D1>7.5 and Z=fT/fW>4.0 (fW: a focal length of the entire system at a wide-angle limit, fT: a focal length of the entire system at a telephoto limit, D1: a center thickness of a lens element located on the most object side in the first lens unit) are satisfied; an imaging device; and a camera.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: November 10, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takakazu Bito, Takanori Yogo
  • Patent number: 9164261
    Abstract: This super-wide lens substantially consists of a positive first lens group, a positive second lens group, and a negative third lens group, in this order from the object side. The first lens group and the third lens group are fixed and the second lens group moves toward the object side while focusing from an object at infinity to an object at the closest distance. The first lens group substantially consists of a negative first sub lens group, a positive second sub lens group, an aperture stop, and a positive third sub lens group in this order from the object side. Conditional expressions (1) and (2) are satisfied: 0.15<f1/f2<0.60??(1) 2.5<f2/f<7.0??(2), where f1: the focal length of the first lens group, f2: the focal length of the second lens group, and f: the focal length of the entire system when focusing on an object at infinity.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: October 20, 2015
    Assignee: FUJIFILM CORPORATION
    Inventor: Kazunori Ono
  • Patent number: 9151935
    Abstract: A zoom lens includes an imaging lens unit having a positive refractive power and provided nearest to an image-side end, and a focusing lens unit having a positive refractive power and provided on an object side of the imaging lens unit. A distance between the imaging lens unit and the focusing lens unit changes during zooming. The focusing lens unit moves during focusing. The imaging lens unit includes, at a position thereof nearest to an object-side end, a negative meniscus lens component that is concave on the object side thereof.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: October 6, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takahiro Hatada
  • Patent number: 9146389
    Abstract: A zoom lens system that includes a first lens group including at least one lens and having a negative refractive power, and a second lens group including at least one lens and having a positive refractive power in an order from an object side to an image side, wherein the zoom lens system is configured to perform zooming by changing a distance between the first lens group and the second lens group and satisfies: 2<|f1/fw|<2.5 and 0.60<|f1/f2|<0.85, wherein f1 indicates a synthetic focal length of the first lens group, fw indicates an overall focal length at a wide angle end, and f2 indicates a synthetic focal length of the second lens group.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: September 29, 2015
    Assignee: Hanwha Techwin Co., Ltd.
    Inventor: Hee-Joong Han
  • Patent number: 9148575
    Abstract: A zoom lens includes first, second, and third lens units respectively having negative, positive, and negative refractive powers in this order from an object side to an image side. The lens units move during zooming such that the spacing between adjacent lens units changes, the second and third lens units are positioned on the object side at a telephoto end when compared to a wide angle end, and the third lens unit moves during focusing. A lateral magnification of the second lens unit at the wide angle end, a lateral magnification of the second lens unit at the telephoto end, a lateral magnification of the third lens unit at the wide angle end, a lateral magnification of the third lens unit at the telephoto end, a focal length of the first lens unit, and a focal length of the second lens unit are appropriately set.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: September 29, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shinji Yamasaki