Multiple Component Lenses Patents (Class 359/754)
  • Patent number: 11378871
    Abstract: An optical system including two optical systems, each optical system including at least two reflectors and a stop. Each of the optical systems is configured to focus light. Each of the at least two reflectors is configured to reflect the light.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: July 5, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventor: Hiroyuki Satoh
  • Patent number: 11372210
    Abstract: An optical imaging lens includes 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 from an object side to an image side in order along an optical axis. The first lens element to the eighth lens element each include an object-side surface facing the object side and an image-side surface facing the image side. The periphery region of the image-side surface of the first lens element is concave. The optical axis region of the image-side surface of the third lens element is concave. The periphery region of the object-side surface of the fourth lens element is concave and the optical axis region of the image-side surface of the fourth lens element is convex. The optical axis region of the image-side surface of the seventh lens element is concave.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: June 28, 2022
    Assignee: GENIUS ELECTRONIC OPTICAL (XIAMEN) CO., LTD.
    Inventors: Jia-Sin Jhang, Ruyou Tang, Yongfeng Lai
  • Patent number: 11320633
    Abstract: An optical assembly for a point action camera or other compact digital camera having a wide field of view, includes multiple lens elements, including at least one lens element that has an aspheric lens surface. The optical assembly is configured to provide a field of view in excess of 120 degrees. The optical assembly includes a ratio of a diameter of a first lens element at the object end of the optical assembly to an image diagonal is less than approximately 3.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: May 3, 2022
    Assignee: Navitar Industries, LLC
    Inventors: Russell Hudyma, Michael Thomas, Ian Wallhead, Arash Ghorbani
  • Patent number: 11300770
    Abstract: A method for adjusting a specimen holder in the beam path of a microscope, in which at least one beam of an illumination radiation is directed onto the specimen holder; a component of the illumination radiation reflected by the specimen holder is captured by means of a detector and measurement values of the captured illumination radiation are ascertained. A current actual manner of positioning of the specimen holder in relation to the beam path is established depending on the measurement values; the established actual manner of positioning is compared to an intended manner of positioning, and control commands for modifying the actual manner of positioning are produced, the execution of which causes the specimen holder to be moved into the intended manner of positioning.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: April 12, 2022
    Assignee: Carl Zeiss Microscopy GmbH
    Inventors: Jörg Siebenmorgen, Thomas Kalkbrenner
  • Patent number: 11280985
    Abstract: An apparatus and method are disclosed to produce a stereoscopic image with a hemispherical field of view. In an implementation, the apparatus includes an optical arrangement to receive first light rays from a first fisheye lens and second light rays from a second fisheye lens. The first fisheye lens and the second fisheye lens are positioned adjacent to each other and an object side of each of the first and second fisheye lenses faces a first plane. The optical arrangement is to direct the first light rays and the second light rays onto an image sensor and bend optical axes of the first and second light rays such that the first light rays are projected onto the image sensor alongside the second light rays.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: March 22, 2022
    Assignee: Google LLC
    Inventors: Florian Kainz, Xi Chen
  • Patent number: 11262540
    Abstract: An imaging lens system includes eight lens elements which are, 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. Each of the eight lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. At least one lens element of the imaging lens system has at least one lens surface having at least one inflection point. The imaging lens system has a total of eight lens elements.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: March 1, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventor: Hsin-Hsuan Huang
  • Patent number: 11264773
    Abstract: A laser apparatus including an optical element made of a CaF2 crystal and configured to transmit an ultraviolet laser beam obliquely incident on one surface of the optical element, the electric field axis of the P-polarized component of the laser beam propagating through the optical element coinciding with one axis contained in <111> of the CaF2 crystal, with the P-polarized component defined with respect to the one surface. A method for manufacturing an optical element, the method including causing a seed CaF2 crystal to undergo crystal growth along one axis contained in <111> to form an ingot, setting a cutting axis to be an axis inclining by an angle within 14.18±5° with respect to the crystal growth direction toward the direction of another axis contained in <111>, which differs from the crystal growth direction, and cutting the ingot along a plane perpendicular to the cutting axis.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: March 1, 2022
    Assignee: Gigaphoton Inc.
    Inventors: Daisuke Tei, Osamu Wakabayashi
  • Patent number: 11247368
    Abstract: Provided is a silicone mold with which a curable composition containing an epoxy resin can be molded with good precision even if used repeatedly. The silicone mold according to an embodiment of the present invention is a silicone mold for use in molding a curable composition containing an epoxy resin, the silicone mold including a cured product of a silicone resin composition, wherein the cured product has a light transmittance at a wavelength of 400 nm of 80% or higher at a thickness of 1 mm, an elongation at break in accordance with JIS K 7161 of 250% or less, and a thermal linear expansion coefficient of 350 ppm/° C. or less at 20 to 40° C.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: February 15, 2022
    Assignee: DAICEL CORPORATION
    Inventors: Takeshi Fujikawa, Sadayuki Fukui
  • Patent number: 11181720
    Abstract: A telephoto lens includes first, second and third lens units. The first lens unit has positive refractive power front-side lens, first rear-side lens, and second rear-side lens units. The first lens unit has a negative lens element satisfying 0.5?|f/fLn|?4.908. The third lens unit has positive and negative lens elements. The first rear-side lens unit includes a predetermined negative lens element and a positive lens element. Lens elements of the front-side lens unit include at least one positive lens element. The second rear-side lens unit has a positive lens element. Conditional Expression 0.247??GFGR1/f?0.5 is satisfied. f and fLn are focal lengths of the telephoto lens and predetermined negative lens element. ?GFGR1 is an axial distance from an object-side surface in the front-side lens unit to an object-side surface in the first rear-side lens unit.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: November 23, 2021
    Assignee: OLYMPUS CORPORATION
    Inventor: Kazuteru Kawamura
  • Patent number: 11169385
    Abstract: A laser optical device includes: an optical fiber unit for transmitting a laser beam; a connector for connecting the optical fiber unit; a collimator for transforming the laser beam into a parallel beam; and a condenser lens unit for condensing the parallel beam. The parallel beam emitted from the condenser lens unit is a flat-top beam. A laser optical head includes: a housing; a connector located in the housing and for connecting an optical fiber unit; a collimator formed at one side of the connector located in the housing and for transforming a laser beam transmitted from the optical fiber unit into a parallel beam; and a condenser lens unit located in the housing and for condensing the parallel beam. The parallel beam emitted from the condenser lens unit is a flat-top beam.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: November 9, 2021
    Assignees: Laservall Asia Co., Ltd.
    Inventors: Byoung-Chan Choi, Ki-Seok Kang
  • Patent number: 11165935
    Abstract: An imaging device includes a casing, a plurality of optical systems disposed in the casing, a plurality of image sensors, disposed in the casing, for generating images captured by using the plurality of optical systems, a heat generation member disposed in the casing, and a pair of sandwiching members disposed in the casing to sandwich the heat generation member between the pair of members.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: November 2, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventor: Takashi Tada
  • Patent number: 11143849
    Abstract: An optical system (OL) used for an optical apparatus such as a camera (1) includes a focusing group (Gf) that moves upon focusing, a diffractive optical element (GD) disposed on an object side of the focusing group (Gf) and a negative lens element (L1n) disposed on the object side of the diffractive optical element (GD). The optical system (OL) satisfies the following expressions 0.030<f/fpf<0.050 nd1n+0.006×?d1n<1.910 35<?d1n where, f: focal length of whole system in infinity focusing state fpf: focal length of diffractive optical element (GD) nd1n: refractive index of medium of negative lens element (L1n) on d-line ?d1n: Abbe number of medium of negative lens element (L1n) on d-line.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: October 12, 2021
    Assignee: NIKON CORPORATION
    Inventors: Satoshi Miwa, Hiroshi Yabumoto
  • Patent number: 11042013
    Abstract: A projection optical system is for an image projection device. The projection optical system includes a whole lens system of seven to nine lenses and an aperture stop. The seven to nine lenses are all single lenses. One negative lens and one or two positive lenses are located on a magnifying side with respect to the aperture stop. Two negative lenses and three or four positive lenses are located on a reducing side with respect to the aperture stop. A lens adjacent to the magnifying side of the aperture stop and a lens adjacent to the reducing side of the aperture stop are both a negative lens.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: June 22, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takashi Kubota, Hibiki Tatsuno
  • Patent number: 11002944
    Abstract: Provided is an optical system consisting of, in order from an object side to an image side, a front lens group (FLG), an aperture stop and a rear lens group (RLG), in which FLG includes at least one positive lens and at least one negative lens. A focal length of a positive lens Lp arranged closest to object side among the at least one positive lens, a focal length of a negative lens Ln arranged closest to image side among the at least one negative lens, a distance on an optical axis from an object-side lens surface of positive lens Lp to aperture stop, a distance on optical axis from an object-side lens surface of negative lens Ln to aperture stop, and a distance on optical axis from aperture stop to a lens surface closest to image side in RLG when focused at infinity are appropriately set.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: May 11, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masato Katayose
  • Patent number: 10988569
    Abstract: Provided is a curable composition which has excellent curability, less causes silicone molds to swell, and allows the silicone molds to have better durability and a longer service life in repeated use. The curable composition according to the present invention is a curable composition for production of an optical component by molding using silicone molds. The curable composition contains curable compounds and a cationic initiator. The curable compounds include (A) a cycloaliphatic epoxy compound and (B) an oxetane compound. The oxetane compound (B) is present in a content of 10 to 45 weight percent of the totality of all the curable compounds contained in the curable composition. Of the totality of all the curable compounds contained in the curable composition, 90 weight percent or more is a compound or compounds having a solubility parameter of 9.0 (cal/cm3)½ or more as determined at 25° C. by the Fedors' method.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: April 27, 2021
    Assignee: DAICEL CORPORATION
    Inventors: Takeshi Fujikawa, Sadayuki Fukui
  • 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: 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: 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: 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