Multiple Component Lenses Patents (Class 359/754)
  • Patent number: 10962742
    Abstract: The present disclosure discloses an optical imaging lens assembly. The optical imaging lens assembly includes, sequentially along an optical axis from an object side to an image side, a first lens having a refractive power; a second lens having a positive refractive power; a third lens having a refractive power; a fourth lens having a refractive power; a fifth lens having a refractive power; a sixth lens having a refractive power; a seventh lens having a refractive power, wherein an image-side surface of the seventh lens is a convex surface; and an eighth lens having a refractive power. There is an air spacing between any two adjacent lenses in the first to eighth lenses. A total effective focal length f of the optical imaging lens assembly and an entrance pupil diameter EPD of the optical imaging lens assembly satisfy: f/EPD?2.0.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: March 30, 2021
    Inventors: Xin Zhou, Jian Yang, Jianke Wenren
  • Patent number: 10962749
    Abstract: An optical lens includes, in order along a direction, an aperture stop and a lens group with a positive refractive power. The aperture stop is disposed at an outermost side of all lenses of the optical lens, and the lens group has at least four lenses. At least one of the four lenses is an aspheric lens, and each of the four lenses has a clear aperture of smaller than 14 mm.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: March 30, 2021
    Assignee: Young Optics Inc.
    Inventors: Kai-Yun Chen, Pei-Ching Liu, Kuo-Chuan Wang
  • Patent number: 10948683
    Abstract: An imaging lens includes a front lens group, an aperture stop, and a rear lens group arranged in that order from an object side to an image side. An object-side lens closest to an object within the front lens group and an image-side lens closest to an image within the rear lens group are configured to form only three air lenses therebetween. The air lens is an air gap between an image-side surface of an object-side lens and an object-side surface of an image-side lens. The object-side lens and the image-side lens is adjacent to each other in an optical axis of the imaging lens. The three air lenses include an object-side air lens, an image-side air lens, and an intermediate air lens. The object-side air lens and the image-side air lens is biconvex, and the intermediate air lens is biconcave.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: March 16, 2021
    Assignee: Ricoh Company, Ltd.
    Inventor: Kazuyasu Ohashi
  • Patent number: 10948689
    Abstract: A large-aperture, high-pixel optical system has six lenses arranged successively from its object side to its image side along its optic axis. The first lens has a convex surface facing the object side and a concave surface facing the image side; The third lens is biconcave; the second and fifth lenses are biconvex; the fourth and sixth lenses each have a concave surface facing the object side and a convex surface facing the image side. The fifth lens and the sixth lens form a combined lens and the optical system satisfies TTL/EFL?4.5. Also disclosed is a camera module using the system. The system and the module are mainly composed of six lenses. Since the number of lenses used is limited, the structure is simple.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: March 16, 2021
    Assignee: GUANGDONG HONGJING OPTOELECTRONIC TECHNOLOGY INC.
    Inventors: Honghai Liu, Hongfei Wang, Jiajun Liu, Zhenting Liu, Zhinong Fu, Xiaoling Yin, Bo Chen, Aiping Xi
  • Patent number: 10921567
    Abstract: A photographing optical lens system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. The second lens element has positive refractive power. The eighth lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the eighth lens element has at least one convex shape in an off-axis region thereof, and both an object-side surface and the image-side surface thereof are aspheric. The photographing optical lens system has a total of eight lens elements. An air gap in a paraxial region is located between every two lens elements of the photographing optical lens system that are adjacent to each other.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: February 16, 2021
    Assignee: LARGAN PRECISION CO., LTD.
    Inventor: Wei-Yu Chen
  • Patent number: 10890840
    Abstract: A projection optical system satisfies ?1?15 (deg) and 3<EP/Ym<7. ?1 is a maximum inclination angle of the reflective surface of each of the micromirrors with respect to the line normal to the image display surface; EP is an entrance pupil distance of the projection optical system; and Ym is a maximum distance in a plane from an optical axis to a point on the image display surface, the plane being a plane in which a light ray propagating from a center of the image display surface toward the projection surface through a center of an aperture stop of the projection optical system exists, the optical axis being an axis shared by a largest number of the plurality of lenses of the projection optical system, the point corresponding to an image on the projection surface.
    Type: Grant
    Filed: March 17, 2019
    Date of Patent: January 12, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Yohei Takano, Hirotoshi Nakayama
  • Patent number: 10838167
    Abstract: Provided is a photographing lens optical system. The lens optical system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens sequentially arranged from an object to an image sensor. The first lens may have a negative (?) refractive power and have an exit surface that is concave with respect to the image sensor. The lens optical system may satisfy at least one of a condition 100°<FOV<200° and a condition 1<TTL/ImgH<2. Herein, FOV denotes an angle of view of the lens optical system, TTL denotes a distance from an incidence surface of the first lens to the image sensor, and ImgH denotes a diagonal length of a maximum pixel region of the image sensor.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: November 17, 2020
    Assignee: ACE SOLUTECH CO., LTD.
    Inventors: Pil Sun Jung, Dong Young Kim, Chi Ho An
  • Patent number: 10816780
    Abstract: The lens system forms an image conjugately between each of a magnification conjugate point and a reduction conjugate point; and an intermediate image-forming position. The lens system includes a magnification optical system with positive power, the magnification optical system having a plurality of lens elements and positioned closer to the magnification side than the intermediate image-forming position; and a relay optical system with positive power, the relay optical system having a plurality of lens elements and positioned closer to the reduction side than the intermediate image-forming position. The lens system satisfies following conditions (1) and (2). 0.08?fp/fr?0.8??(1) {Ymax?ft·tan(?max)}/{ft·tan(?max)}??0.3??(2) where fr is composite focal length of the relay optical system, fp is composite focal length of the magnification optical system, Ymax is a radius of an effective image diameter, ?max is a maximum half view angle, and ft is the focal length of the lens system.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: October 27, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Takuya Imaoka
  • Patent number: 10812786
    Abstract: According to one embodiment, an optical test apparatus includes a first optical system, a second optical system, and an image sensor. The first optical system is configured to pass a light ray of a first wavelength and having telecentricity on an object side for the light ray of the first wavelength. The second optical system is configured to pass a light ray of a second wavelength different from the first wavelength. The image sensor is configured to image an object based on the light ray of the first wavelength having passed through the first optical system and the light ray of the second wavelength having passed through the second optical system.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: October 20, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi Ohno, Hiroya Kano
  • Patent number: 10775594
    Abstract: The present disclosure provides a camera lens, constituted by eight lenses, and featuring excellent optical characteristics, an ultra-thin appearance, a wide angle and a bright Fno. The camera lens is configured with, sequentially from an object side: a 1st lens having a positive refractive power, a 2nd lens having a negative refractive power, a 3rd lens having a negative refractive power, a 4th lens having a positive refractive power, a 5th lens having a negative refractive power, a 6th lens having a positive refractive power, a 7th lens having a positive refractive power and an 8th lens having a negative refractive power, and satisfies specified conditional formulas.
    Type: Grant
    Filed: December 30, 2018
    Date of Patent: September 15, 2020
    Assignee: AAC Communication Technologies (Changzhou) Co., Ltd.
    Inventor: Hiroyuki Teraoka
  • Patent number: 10663747
    Abstract: An apparatus and method for controlling the spectrum of stimulated Raman scattering that is used for despeckling of digitally projected images. The stimulated Raman scattering is utilized to add wavelength diversity for reduced speckle and to change the color of the light to a more desirable combination of wavelengths. Digital projection with color-sequential projectors may be enabled by alternately switching the Raman spectrum between green and red. Improved projector transmission may be achieved by minimizing the amount of yellow light generated in the Raman spectrum.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: May 26, 2020
    Assignee: Projection Ventures, Inc.
    Inventors: Ian Lee, Barret Lippey, John Amsten
  • Patent number: 10656366
    Abstract: A lens unit includes: a lens in which first and second circular portions are arranged in an optical axis direction, the first circular portion having a first diameter, the second circular portion having a second diameter larger than the first diameter; a sealing member that is annular when viewed in the optical axis direction and that has an inner peripheral surface that contacts an outer peripheral surface of the first circular portion; and a lens barrel including first and second inner wall portions, the first inner wall portion being circular when viewed in the optical axis direction and pressing the sealing member between the first inner wall portion and the first circular portion, the second inner wall portion having three or more contact portions that contact an outer peripheral surface of the second circular portion and that are arranged with spaces therebetween in a circumferential direction of the lens.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: May 19, 2020
    Assignee: NANCHANG O-FILM OPTICAL-ELECTRONIC TECH CO., LTD.
    Inventors: Motokazu Shimizu, Kensuke Masui
  • Patent number: 10627601
    Abstract: An optical imaging system includes a first lens comprising a positive refractive power, and a concave object-side surface, a second lens comprising a positive refractive power, a third lens comprising a negative refractive power, a fourth lens comprising a positive refractive power, and a fifth lens comprising a positive refractive power, a concave image-side surface. The first through fifth lenses are sequentially disposed from an object side toward an imaging plane.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: April 21, 2020
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Hag Chul Kim
  • Patent number: 10620398
    Abstract: The imaging lens consists of, in order from the object side, a first lens group having a positive refractive power, a second lens group, and a third lens group. In the second lens group, a first focus lens group having a negative refractive power is disposed to be closest to the object side, and a second focus lens group having a positive refractive power is disposed to be closest to the image side. During focusing, only the first and second focus lens groups move by changing the mutual spacing therebetween. The first lens group has two positive lenses and one negative lens. The first focus lens group consists of two or less lenses including a negative lens. Predetermined conditional expressions are satisfied.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: April 14, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Daiki Kawamura, Tetsuya Ori
  • Patent number: 10606036
    Abstract: An imaging lens includes first, second, third, fourth, fifth and six lens elements arranged in order 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 image-side surface of the second lens element has a concave portion in a vicinity of the optical axis. The third lens element has negative refractive power. The object-side surface of the third lens element has a concave portion in a vicinity of the optical axis. The object-side surface of the fifth lens element has a convex portion in a vicinity of a periphery. All lens elements of the imaging lens having the refractive power are only the first, second, third, fourth, fifth and six lens elements.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: March 31, 2020
    Assignee: GENIUS ELECTRONIC OPTICAL CO., LTD.
    Inventors: Yu-Ming Chen, Pei-Chi Wang
  • Patent number: 10564404
    Abstract: Provided are an optical lens assembly and an electronic apparatus including the same according to various embodiments. The optical lens assembly includes: a first lens group having a positive refractive power; a second lens group having a positive refractive power; and a bending unit located between the first lens group and the second lens group and configured to bend an optical path, wherein the first lens group, the second lens group, and the bending unit are sequentially arranged from an object side to an image side, and the optical lens assembly has a maximum viewing angle of 130° or more. Other embodiments may be implemented.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: February 18, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-kun Lee, Min Heu, Yun-jeong Kim
  • Patent number: 10534160
    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 negative 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 glass material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of glass material, and the sixth lens is made of plastic material. The camera optical lens further satisfies specific conditions.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: January 14, 2020
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Hiroyuki Teraoka, Lei Zhang, Yanmei Wang, Yang Zhang
  • Patent number: 10514528
    Abstract: A photographing optical lens system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. The second lens element has positive refractive power. The eighth lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the eighth lens element has at least one convex shape in an off-axis region thereof, and both an object-side surface and the image-side surface thereof are aspheric. The photographing optical lens system has a total of eight lens elements. An air gap in a paraxial region is located between every two lens elements of the photographing optical lens system that are adjacent to each other.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: December 24, 2019
    Assignee: LARGAN PRECISION CO., LTD.
    Inventor: Wei-Yu Chen
  • Patent number: 10509206
    Abstract: An optical imaging lens includes a first, a second, a third, a fourth, a fifth, a sixth, a seventh and an eighth lens elements from an object side to an image side in order along an optical axis. The first lens element and the second lens element both have positive refracting power. An optical axis region of an object-side surface of the fifth lens element is concave. A periphery region of an image-side surface of the fifth lens element, an optical axis region of an object-side surface of the sixth lens element and an optical axis region of an object-side surface of the seventh lens element are convex. Materials of the third, the fourth and the eighth lens elements are plastic. The eight lens elements are the only lens elements having refracting power in the optical imaging lens.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: December 17, 2019
    Assignee: GENIUS ELECTRONIC OPTICAL (XIAMEN) CO., LTD.
    Inventors: Jia-Sin Jhang, Yanxuan Yin, Lihua Lei
  • Patent number: 10473899
    Abstract: An optical imaging system includes a first lens having refractive power; a second lens having refractive power; a third lens having refractive power and cemented to the second lens; a fourth lens having refractive power; a fifth lens having refractive power and cemented to the fourth lens; a sixth lens having refractive power; a seventh lens having refractive power; and an eighth lens having refractive power. The first to eighth lenses are sequentially disposed in numerical order beginning with the first lens from an object side of the optical imaging system toward an imaging plane of the optical imaging system.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: November 12, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hyuk Joo Kim, Seong Ho Hwang
  • Patent number: 10466473
    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: May 26, 2017
    Date of Patent: November 5, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuichi Gyoda, Suguru Inoue, Shigenobu Sugita
  • Patent number: 10386610
    Abstract: The present disclosure discloses a camera optical lens. The camera optical lens includes, 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 camera optical lens further satisfies specific conditions.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: August 20, 2019
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventors: Hiroyuki Teraoka, Lei Zhang, Yanmei Wang, Yang Zhang
  • Patent number: 10302915
    Abstract: A photographing optical lens system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. The second lens element has positive refractive power. The eighth lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the eighth lens element has at least one convex shape in an off-axis region thereof, and both an object-side surface and the image-side surface thereof are aspheric. The photographing optical lens system has a total of eight lens elements. An air gap in a paraxial region is located between every two lens elements of the photographing optical lens system that are adjacent to each other.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: May 28, 2019
    Assignee: LARGAN PRECISION CO., LTD.
    Inventor: Wei-Yu Chen
  • Patent number: 10295797
    Abstract: An imaging device includes two imaging optical systems each of the imaging optical systems including a wide-angle lens having an angle of view wider than 180 degrees, and an imaging sensor configured to image an image by the wide-angle lens, so as to obtain an image in a solid angle of 4? radian by synthesizing the images by the respective imaging optical systems, wherein the wide-angle lens of each of the imaging optical systems includes, in order from an object side to an image side, a front group having a negative power, a reflection surface and a back group having a positive power, and is configured to bend an optical axis of the front group by the reflection surface at 90 degrees toward the back group.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: May 21, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Kensuke Masuda, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hirokazu Takenaka, Hideaki Yamamoto, Satoshi Sawaguchi, Daisuke Bessho, Hiroyuki Satoh, Makoto Shohara
  • Patent number: 10281685
    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 camera optical lens further satisfies specific conditions.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: May 7, 2019
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventors: Hiroyuki Teraoka, Lei Zhang, Yanmei Wang, Yang Zhang
  • Patent number: 10241307
    Abstract: An image forming lens system includes a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, and a third lens unit. The first lens unit includes in order from the object side, a front-side lens unit having a positive refractive power and a rear-side lens unit. The second lens unit moves at a time of focusing. The third lens unit has a positive lens element. The rear-side lens unit includes a negative lens element and a positive lens element. The front-side lens unit has an aspherical surface having a positive refractive power on an axis, or the rear-side lens unit has an aspherical surface having a negative refractive power on an axis. The lens element closest to the object side in the first lens unit is fixed in position. Following Conditional Expression (9) is satisfied: 0.06?|fG2/f|?0.195??(9).
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: March 26, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Kazuteru Kawamura
  • Patent number: 10114195
    Abstract: An optical system includes a first lens having negative refractive power and having two concave surfaces, a second lens having positive refractive power, a third lens having refractive power, a fourth lens having refractive power, a fifth lens having refractive power, a sixth lens having refractive power, and a seventh lens having refractive power. The first to seventh lenses are sequentially disposed from an object side.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: October 30, 2018
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Ju Hwa Son
  • Patent number: 10036876
    Abstract: A photographing optical lens system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. The second lens element has positive refractive power. The eighth lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the eighth lens element has at least one convex shape in an off-axis region thereof, and both an object-side surface and the image-side surface thereof are aspheric. The photographing optical lens system has a total of eight lens elements. An air gap in a paraxial region is located between every two lens elements of the photographing optical lens system that are adjacent to each other.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: July 31, 2018
    Assignee: LARGAN Precision Co., Ltd.
    Inventor: Wei-Yu Chen
  • Patent number: 9964443
    Abstract: A spectrometer having substantially increased spectral and spatial fields.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: May 8, 2018
    Assignee: WAVEFRONT RESEARCH, INC.
    Inventor: Thomas A. Mitchell
  • Patent number: 9946050
    Abstract: An image forming lens system includes a front lens unit having a positive refractive power, and a rear lens unit, and does not include any other lens unit. The front lens unit includes a first lens unit having a positive refractive power and a second lens unit having a negative refractive power. Each of the first lens unit and the second lens unit includes a positive lens and a negative lens. The second lens unit is a focusing lens unit. The rear lens unit includes a positive lens and a negative lens. The second lens unit is the only lens unit that moves, in the front lens unit, and the following conditional expressions (1) and (2?) are satisfied: 0.5<fFF/f<1.65??(1) 0?|f/rG2b|<6.5??(2?).
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: April 17, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Takashi Fujikura, Keisuke Ichikawa, Kazuteru Kawamura
  • Patent number: 9885855
    Abstract: A photographing optical lens system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. The second lens element has positive refractive power. The eighth lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the eighth lens element has at least one convex shape in an off-axis region thereof, and both an object-side surface and the image-side surface thereof are aspheric. The photographing optical lens system has a total of eight lens elements. An air gap in a paraxial region is located between every two lens elements of the photographing optical lens system that are adjacent to each other.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: February 6, 2018
    Assignee: LARGAN PRECISION CO., LTD.
    Inventor: Wei-Yu Chen
  • Patent number: 9804368
    Abstract: A near-infrared hybrid lens system for imaging a wide field-of-view scene onto an image plane includes (a) a first cast lens positioned closest to the scene and at least partly transmissive to near-infrared light, (b) a second cast lens positioned closest to the image plane and at least partly transmissive to near-infrared light, and (c) a wafer-level lens at least partly transmissive to near-infrared light and disposed between the first cast lens and the second cast lens, wherein the wafer-level lens has (i) a planar substrate with a first surface facing away from the image plane and a second surface facing the image plane, (ii) a first lens element disposed on the first surface, and (iii) a second lens element disposed on the second surface.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: October 31, 2017
    Assignee: OmniVision Technologies, Inc.
    Inventors: Tingyu Cheng, Jau-Jan Deng
  • Patent number: 9739976
    Abstract: An imaging lens includes, in order from the object side: a positive first lens group; a stop; a positive second lens group; and a negative third lens group. The first lens group includes, in order from the object side, at least one positive single lens, at least one cemented lens, at least one negative single lens, and a negative meniscus single lens. The second lens group includes, in order from the object side, a cemented lens and a biconvex lens. The third lens group includes, in order from the object side, a negative meniscus lens, at least one negative lens, and at least one positive lens. Focusing from infinity to a close distance is performed by moving the first lens group, the stop, and the second lens group while the third lens group is fixed with respect to an imaging surface.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: August 22, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Ping Sun
  • Patent number: 9678315
    Abstract: A photographing optical lens system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. The second lens element has positive refractive power. The eighth lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the eighth lens element has at least one convex shape in an off-axis region thereof, and both an object-side surface and the image-side surface thereof are aspheric. The photographing optical lens system has a total of eight lens elements. An air gap in a paraxial region is located between every two lens elements of the photographing optical lens system that are adjacent to each other.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: June 13, 2017
    Assignee: LARGEN PRECISION CO., LTD.
    Inventor: Wei-Yu Chen
  • Patent number: 9606335
    Abstract: An F? lens for extreme ultraviolet laser marking assembly and a laser processing device are provided. The lens assembly includes a first lens (L1), a second lens (L2), a third lens (L3), and a fourth lens (L4) successively coaxially arranged along a transmission direction of an incident laser. The first lens (L1) is a biconcave negative lens; the second lens (L2) is a falcate negative lens; the third lens (L3) is a falcate positive lens; and the fourth lens (L4) is a biconvex positive lens; and an intermediate part of the second lens (L2) and the third lens (L3) are both convex toward a transmission direction of the laser. A proportion of the refractive index of the first, the second, the third and the fourth lenses to the abbe number is 1.476/68, with a tolerance of 5%. By means of the design of the four lenses and relative positions therebetween, astigmatism and distortion are effectively corrected, and the focusing degree of the energy is high.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: March 28, 2017
    Assignees: HAN'S LASER TECHNOLOGY INDUSTRY GROUP CO., LTD., HAN'S CNC SCIENCE AND TECHNOLOGY CO., LTD.
    Inventors: Jiaying Li, Chaoming Zhou, Yunfeng Gao
  • Patent number: 9560279
    Abstract: A camera device includes a lens module and a birefringent sapphire lens. The sapphire lens is coupled to the lens module as a light window to protect the lens module. The sapphire lens has a crystal structure and a crystal axis. The crystal structure is a single-crystal structure and the crystal axis is one of c-axis (0001), a-axis [including (1210), (1120), (2110), (1120), (2110) and (1210)], m-axis [including (1010), (1100), (0110), (1010), (1100), and (0110)], and r-axis [including (1011), (1011), (0111), (0111), (1101) and r-axis (1101)].
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: January 31, 2017
    Assignee: TERA XTAL TECHNOLOGY CORPORATION
    Inventors: Wei-Hsiang Wang, Chen-Hui Wu
  • Patent number: 9523841
    Abstract: A photographing optical lens system includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. The second lens element has positive refractive power. The eighth lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the eighth lens element has at least one convex shape in an off-axis region thereof, and both an object-side surface and the image-side surface thereof are aspheric. The photographing optical lens system has a total of eight lens elements. An air gap in a paraxial region is located between every two lens elements of the photographing optical lens system that are adjacent to each other.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: December 20, 2016
    Assignee: LARGAN PRECISION CO., LTD.
    Inventor: Wei-Yu Chen
  • Patent number: 9465192
    Abstract: An imaging optical system, includes: in the order from an object side to an image plane side, a first lens group having a first lens which is formed as a negative lens; a second lens group having a second lens which is formed as a plano-concave lens, a third lens which is formed as a negative meniscus lens, and a fourth lens which is formed as a biconvex lens; an aperture stop; a third lens group having a fifth lens which is formed as a biconvex lens, and a sixth lens which is formed as a biconcave lens; and a fourth lens group having a seventh lens which is formed as a negative meniscus lens.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: October 11, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventor: Takahiro Nakayama
  • Patent number: 9453988
    Abstract: An imaging lens composed of six lenses of a negative first lens, a positive second lens, a negative third lens, a positive fourth lens, a positive fifth lens, and a negative sixth lens, disposed in order from the object side, and when refractive indices of the third lens to the sixth lens are taken as Nd3 to Nd6 respectively, the imaging lens satisfies conditional expressions (1): Nd3<1.7, (2): Nd4<1.6, (3):Nd5<1.6 and (4): Nd6<1.89.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: September 27, 2016
    Assignee: FUJIFILM Corporation
    Inventor: Taro Asami
  • Patent number: 9348112
    Abstract: The present invention relates to an optical system. An optical system of the present invention includes a first lens having a positive refractive power and an object-side surface convex toward an object side; a second lens having a negative refractive power and an image-side surface concave toward an image side; a third lens having a negative refractive power; a fourth lens having a positive refractive power; a fifth lens having a positive refractive power and an image-side surface convex toward the image side; and a six lens having a negative refractive power and an image-side surface concave toward the image side.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: May 24, 2016
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Il Yong Park, Jin Hwa Jung, Young Suk Kang
  • Patent number: 9104010
    Abstract: An imaging lens includes a plurality of lenses, wherein a surface on an image side of a lens on an object side and a surface on the object side of a lens on the image side of two lenses arranged adjacently and separately from each other face each other across an air space, the air space is termed an air lens, a shape of the air lens is defined such that the surface on the image side of the lens on the object side is taken as a surface on the object side of the air lens and the surface on the object side of the lens on the image side is taken as a surface on the image side of the air lens, and an air lens positioned on a most object side and an air lens positioned on a most image side each have a biconvex shape.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: August 11, 2015
    Assignee: RICOH COMPANY, LTD.
    Inventor: Kazuyasu Ohashi
  • Publication number: 20150116849
    Abstract: The present invention provides an optical imaging lens. The optical imaging lens comprises a lens barrel and several lens elements positioned therein. Each lens element has a lens portion and a peripheral portion formed around the lens portion and extending to the rim. The lens portion is formed with an object-side surface facing to the object side and an image-side surface facing to the image side for passing the light. One of the lens elements is an embedded lens element. The radius from the center to the rim of the embedded lens element is smaller than that of another lens element adjacent to the embedded lens element and thus the rim of the embedded lens element is embedded in the peripheral portion of the adjacent lens element.
    Type: Application
    Filed: February 26, 2014
    Publication date: April 30, 2015
    Applicant: GENIUS ELECTRONIC OPTICAL CO., LTD.
    Inventor: Hsien-Chang Hou
  • Publication number: 20150116553
    Abstract: Methods and systems are provided to enable the capture of large (e.g., Gigapixel) images with high image quality using optical imaging systems that have a small form factor. The disclosed systems can be manufactured in a cost effective fashion, and can be readily assembled, aligned, tested and utilized. One such system comprises a monocentric primary optics section that includes one or more surfaces adapted to form a symmetrical arrangement around a common point of origin. The system also includes a secondary optics section that includes a plurality of secondary optics subsections, where each secondary optics subsection can intercept at least a portion of the light collected by the monocentric primary optics section. The combination of the primary optics section and the secondary optics section is adapted to form an image.
    Type: Application
    Filed: January 5, 2015
    Publication date: April 30, 2015
    Inventors: Joseph E. Ford, Eric Tremblay
  • Publication number: 20150103418
    Abstract: An objective optical system consists of, from an object side to an image side: a first lens group having positive optical power; a second lens group having negative optical power; and a third lens group having positive optical power, wherein the first lens group includes, from the object side to the image side, a first lens having negative optical power and a second lens having positive optical power, and the second lens group is moved according to a change in an object distance to perform focusing, and the following conditional expressions are satisfied: ?19<f2/f1<?3.5 0.5<v/f<1.1 where f2 is a focal length of the second lens, f1 is a focal length of the first lens, v is an amount of movement of the second lens group, and f is a focal length of an entire system during the most distant view observation.
    Type: Application
    Filed: November 3, 2014
    Publication date: April 16, 2015
    Inventor: Hideyasu Takato
  • Patent number: 9001434
    Abstract: An imaging lens system includes six non-cemented lens elements with refractive power, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element has positive refractive power. The second lens element has refractive power. The third lens element has positive refractive power. The fourth lens element has refractive power. The fifth lens element has refractive power, wherein both of the surfaces thereof are aspheric. The sixth lens element with refractive power has a concave image-side surface in a paraxial region thereof, wherein the image-side surface has at least one convex shape in an off-axis region thereof, and both of the surfaces thereof are aspheric. The imaging lens system has a total of six lens elements with refractive power.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: April 7, 2015
    Assignee: Largan Precision Co., Ltd.
    Inventors: Kuan-Ming Chen, Wei-Yu Chen
  • Patent number: 9001440
    Abstract: A macro lens system includes a positive first lens group, and a positive or negative second lens group, in that order from the object side, wherein at least the first lens group moves toward the object side when focusing on an object at infinity to an object at a close distance, wherein the second lens group includes a negative first sub-lens group and a positive second sub-lens group, in that order from the object side, wherein the following condition (1) is satisfied: ?5.0<f2A/fi<?0.8??(1), wherein f2A designates the focal length of the first sub-lens group, and fi designates the focal length of the entire the macro lens system when focusing on an object at infinity.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: April 7, 2015
    Assignee: Pentax Ricoh Imaging Company, Ltd.
    Inventor: Masakazu Saori
  • Patent number: 8988792
    Abstract: A telephoto lens TL having, in order from an object, a plurality of lenses L1, L2, . . . and a diffractive optical element DOE which has a diffraction grating having a rotationally symmetric shape with respect to the optical axis, wherein the diffractive optical element DOE is disposed on any one of lens surfaces of the plurality of lenses L1, L2, . . . , and conditional expression 0.50<fa/Rd<0.90 or 1.10<fa/Rd<2.00 is satisfied, where fa denotes a combined focal length of each lens from the lens L1, which is closest to the object, of the plurality of lenses L1, L2, . . . to the lens L2, on which the diffractive optical element DOE is disposed, and Rd is a radius of curvature of the lens surface on which the diffractive optical element DOE is disposed.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: March 24, 2015
    Assignee: Nikon Corporation
    Inventor: Makoto Fujimoto
  • Patent number: 8988790
    Abstract: Disclosed herein is an imaging lens, including: a first lens having positive (+) power and being biconvex; a second lens having negative (?) power and being concave toward an image side; a third lens having positive (+) power and being biconvex; a fourth lens having positive (+) power and being convex toward the image side; and a fifth lens having negative (?) power and being concave toward the image side, wherein the first lens, the second lens, the third lens, the fourth lens, and the fifth lens are sequentially disposed from an object side.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: March 24, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Yong Joo Jo
  • Patent number: 8982474
    Abstract: A zoom lens includes, in order from an object side to an image side along an optical axis, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a negative refractive power, a fourth lens group having a positive refractive power, and a fifth lens group having a positive refractive power.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: March 17, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiromichi Atsuumi, Yohei Takano
  • Publication number: 20150062404
    Abstract: An image-capturing lens is disclosed in the disclosure. The image-capturing lens includes a central portion and a periphery portion. The central portion includes a plurality of optical elements arranged in a circular fashion, and each of the optical elements differs in thickness. The periphery portion extends peripherally from the central portion and has a constant thickness. The thickness of the periphery portion is smaller than a thickness of one of the plurality of optical elements that is approximate to the periphery portion.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 5, 2015
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Yin-Dong Lu, Chuan-Hui Yang