Three Components Patents (Class 359/784)
  • Patent number: 10690893
    Abstract: The imaging lens consists of, in order from the object side, a first lens group, an aperture stop, a second lens group having a positive refractive power. During focusing from a distant object to a close-range object, the first lens group remains stationary, and the aperture stop and the second lens group integrally move to the object side. The imaging lens satisfies predetermined conditional expressions relating to a focal length of the whole system, a focal length of the first lens group, a principal point position of the second lens group, a focal length of the second lens group, a back focal length, and the like.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: June 23, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Kunugise, Kazuyoshi Okada
  • Patent number: 10634866
    Abstract: A lens including a lens barrel and five lens elements is provided. A relation between the amount of field curvature variation Sa1 of a system caused by a thickness tolerance of a lens element in the lens and an amount of field curvature variation Sa2 of the system caused by a change of a gap between the lens element and an adjacent lens element thereof is described as follows. Sa2 is twice or less of Sa1. Sa2 and Sa1 are both positive values or both negative values to render a better field curvature performance of the lens. A manufacturing method of the lens is also provided.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: April 28, 2020
    Assignee: Rays Optics Inc.
    Inventors: Chen-Yi Tsai, Chen-Cheng Lee
  • Patent number: 10606050
    Abstract: A portrait lens configuration for meeting handheld device form factor constraints. First and second meniscus lenses each have a reflective surface to provide internal reflections for transmitting light toward a focal plane. A third lens is positioned between the meniscus lenses and the focal plane. The first lens includes an anterior concave surface having a reflective material extending over a portion thereof. Light received by the first meniscus lens can be transmitted therethrough. The reflective material is positioned along the anterior concave surface to receive light transmitted therethrough and reflected back from the second lens. In an associated method the first meniscus lens is positioned to receive light through a first of two opposing refractive surfaces. After each lens provides an internal reflection, reflected light is transmitted through the second of the two opposing surfaces and then through a bore positioned within the second lens to the third lens.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: March 31, 2020
    Assignee: FotoNation Limited
    Inventors: Christopher Dainty, Alexander Goncharov, Conor J. Sheil
  • Patent number: 10578826
    Abstract: Lens barrel includes first group lens frame unit, second group lens frame unit, lens frame, insertion hole, and depressions. First group lens frame unit holds lenses. Second group lens frame unit holds lens. Lens frame is disposed between first group lens frame unit and second group lens frame unit on an inner circumference side of first group lens frame unit through radial clearance. Insertion hole is provided on an outer peripheral surface of first group lens frame unit, and a jig of lens frame is inserted into insertion hole. Depressions are provided at a position accessible from an outside in a state where first group, second group lens frame units and lens frame are assembled, and fix lens frame to first group lens frame unit.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: March 3, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Atsushi Hasegawa, Kenji Ikeo
  • Patent number: 10488674
    Abstract: A collimator lens includes a first lens, a second lens and a diaphragm from an object side to an image side of the assembly in turn along an optical axis, in which the first lens is of a positive focal power, and an object side surface thereof is convex; the second lens is of a positive focal power, and an image side surface thereof is convex; optical centers of the first lens and the second lens are arranged along a same straight line, the system meets following formulas: f1>f2; (dn/dt)1<?50×10?6/° C.; (dn/dt)2>?10×10?6/° C., where f1 represents a focal length of the first lens, f2 represents a focal length of the second lens, (dn/dt)1 represents a change rate of a refractive index of the first lens with temperature, and (dn/dt)2 represents a change rate of a refractive index of the second lens with temperature.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: November 26, 2019
    Assignee: JIANGXI LIANCHUANG ELECTRONIC CO., LTD.
    Inventors: Xuming Liu, Kemin Wang, Jiyong Zeng, Haojie Zeng, Yumin Bao, Weijian Chen
  • Patent number: 10365539
    Abstract: An optical imaging system according to the present invention includes, in order from an object side to an image side, a first lens with negative refractive power, a second lens that is a meniscus lens having a convex image-side surface, an aperture stop, a third lens with positive refractive power, and a lens group with positive refractive power. When the center thickness of the first lens is represented as t1, the center thickness of the second lens is represented as t2 and the focal length of the whole system is represented as f, t1/f>1.2 and t2/f>1.2 are satisfied.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: July 30, 2019
    Assignee: NALUX CO., LTD.
    Inventor: Norihisa Sakagami
  • Patent number: 10031317
    Abstract: An optical lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element and a third lens element. The first lens element with positive refractive power has an object-side surface being convex, and the object-side surface and an image-side surface thereof are aspheric. The second lens element with negative refractive power has an image-side surface being concave, and an object-side surface and the image-side surface thereof are aspheric. The third lens element with refractive power has an object-side surface being concave, and the object-side surface and an image-side surface thereof are aspheric. The optical lens assembly further includes a stop with no lens element having refractive power disposed between the stop and the first lens element. The optical lens assembly has a total of three lens elements with refractive power.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: July 24, 2018
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Chun-Che Hsueh, Hsin-Hsuan Huang
  • Patent number: 9995907
    Abstract: An optical image capturing system, sequentially including a first lens element, a second lens element, a third lens element and a fourth lens element from an object side to an image side, is disclosed. The first lens element has negative refractive power. The second through third lens elements have refractive power. The fourth lens element has positive refractive power. At least one of the image-side surface and the object-side surface of each of the four lens elements are aspheric. The optical lens elements can increase aperture value and improve the imagining quality for use in compact cameras.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: June 12, 2018
    Assignee: Ability Opto-Electronics Technology Co., Ltd.
    Inventors: Chien-Hsun Lai, Yao-Wei Liu, Yeong-Ming Chang
  • Patent number: 9971130
    Abstract: Disclosed is a composite array camera lens module, including: a first lens layer disposed at a position from a diaphragm toward an object space having a first-type lens and a second-type lens; a second lens layer disposed at a position from the diaphragm toward an image space having a third-type lens and a fourth-type lens, wherein the first-type lens and the third-type lens are positive lenses and form a first camera lens with a first effective focal length, and the second-type lens and the fourth-type lens are a negative lens and a positive lens, respectively, and form a second camera lens with a second effective focal length less than the first effective focal length; and an image sensor arranged at a side of the second lens layer away from the diaphragm, wherein the first lens layer, the second lens layer and the image sensor are designed to be parallel flat planes.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: May 15, 2018
    Assignee: Industrial Technology Research Institute
    Inventors: Chun-Ting Lin, Chiun-Lern Fu, Te-Kuei Chan, Jenn-Nan Ku
  • Patent number: 9964734
    Abstract: An optical image capturing system, sequentially including a first lens element, a second lens element, a third lens element and a fourth lens element from an object side to an image side, is provided. The first lens element has negative refractive power. The second through third lens elements have refractive power. The fourth lens element has positive refractive power. At least one of the image-side surface and the object-side surface of each of the four lens elements are aspheric. The optical lens elements can increase aperture value and improve the imagining quality for use in compact cameras.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: May 8, 2018
    Assignee: Ability Opto-Electronics Technology Co., Ltd.
    Inventors: Chien-Hsun Lai, Yao-Wei Liu, Yeong-Ming Chang
  • Patent number: 9958642
    Abstract: An optical image capturing system is provided. In the order from an object side to an image side, the optical image capturing system includes a first lens with positive refractive power; a second lens with refractive power; a third lens with refractive power; and a fourth lens with refractive power; and at least one of the image-side surface and object-side surface of each of the four lens elements is aspheric. The optical lens can increase aperture value and improve the imagining quality for use in compact cameras.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: May 1, 2018
    Assignee: Ability Opto-Electronics Technology Co., Ltd.
    Inventors: Chien-Hsun Lai, Kuo-Yu Liao, Yao-Wei Liu, Yeong-Ming Chang
  • Patent number: 9720213
    Abstract: An infrared lens unit includes, in order from the object side, an aperture, a lens group, and a band-pass filter which passes a light beam of a prescribed wavelength band of the infrared region. The lens group further includes, in order from the object side, a first meniscus lens which has a positive power and is convex on the object side, a second meniscus lens which has a positive power and is convex on the image side, and a convex lens which has a positive power and is convex on the object side. The lens group further includes a near-telecentric state on the image side, wherein the angle of entry of the light beam into the band-pass filter is either 0° or close to 0°. Thus, it is possible to accurately pass a light beam of a prescribed wavelength band of the infrared region by the lens unit.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: August 1, 2017
    Assignee: HITACHI MAXELL, LTD.
    Inventors: Takashi Kamitakahara, Yoshiaki Minagawa, Takashi Sugiyama
  • Patent number: 9645353
    Abstract: An optical system of the present invention includes, in order from an object side: a first lens group G1; a second lens group G2 having positive refractive power; and a third lens group G3 having positive refractive power, wherein the first lens group G1 and the third lens group G3 are fixed in an optical axis direction while the second lens group G2 is moved in an optical axis direction to focus on from an object at infinity to an object at a finite distance, and specified conditions is satisfied.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: May 9, 2017
    Assignee: Tamron Co., Ltd.
    Inventors: Hisayuki Yamanaka, Keisuke Okada, Takahiko Sakai, Yoshito Iwasawa
  • Patent number: 9612426
    Abstract: An imaging lens consists of a front group having positive refractive power as a whole and a rear group in this order from an object side. The front group consists of three positive lenses, a negative lens with its concave surface facing an image side, a positive lens with its convex surface facing the object side, a negative lens with its concave surface facing the image side, a stop, a negative lens with its concave surface facing the object side and plural positive lenses in this order from the object side. The rear group has positive refractive power and consists of a positive lens and a negative lens in this order from the object side.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: April 4, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Hideo Kanda, Tomoyuki Baba, Takashi Suzuki, Michio Cho
  • Patent number: 9541733
    Abstract: An imaging lens assembly includes an optical lens set including first, second and third optical lens elements that are arranged sequentially from an object side to an image side along an optical axis of the imaging lens assembly and that respectively have positive, negative and positive refractive powers, and a fixed aperture stop that is disposed between the object side and the first optical lens element. At least one of the object-side surface and the image-side surface of the second optical lens element is aspheric, and at least one of the object-side surface and the image-side surface of the second and third optical lens element has an inflection point.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: January 10, 2017
    Assignee: Ability Opto-Electronics Technology Co., Ltd.
    Inventor: Hung-Wen Lee
  • Patent number: 9507116
    Abstract: In a lens module, a concave portion may be formed on an image-side surface of a first lens, a convex portion protruding toward the concave portion may be formed on an object-side surface of a second lens, an outer region of the concave portion of the first lens and an outer region of the convex portion of the second lens may be closely adhered to each other, the concave portion and the convex portion may be spaced apart from each other, and a gap between the concave portion and the convex portion in an optical axis direction and a gap between the concave portion and the convex portion in a direction perpendicular to an optical axis may be formed so as to be different from each other.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: November 29, 2016
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Kwang Yun Choi
  • Patent number: 9459431
    Abstract: A wide angle lens, which forms an image on an image pickup device having a curved imaging surface, has a whole angle of view of 120° or more and comprises a first lens, a second lens and a third lens in this order from an object side. The first lens is a meniscus lens having a convex surface facing the object side, the second lens has a positive power and the third lens has a concave surface facing an image side. The first, the second and the third lenses respectively have at least one aspherical surface.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: October 4, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventor: Masatoshi Hirose
  • Patent number: 9316820
    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 longitudinal astigmatism of approximately 0.3 mm or less.
    Type: Grant
    Filed: March 16, 2014
    Date of Patent: April 19, 2016
    Assignee: Hyperion Development, LLC
    Inventors: Russell Hudyma, Michael Thomas
  • Patent number: 9274310
    Abstract: An optical imaging lens includes an aperture stop and an optical assembly, the optical assembly includes, in order from the object side to the image side: a first lens element with a positive refractive power; a second lens element with a positive refractive power; a third lens element with a negative refractive power; the aperture stop is located between an image-side surface of the first lens element and an object to be photographed; wherein a radius of curvature of an object-side surface of the first lens element is R1, a radius of curvature of the image-side surface of the first lens element is R2, a central thickness of the second lens element is CT2, a central thickness of the third lens element is CT3, and the following conditions are satisfied: ?2.0<(R1+R2)/(R1?R2)<?0.2; 2.0<CT2/CT3<4.0.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: March 1, 2016
    Assignee: Glory Science Co., Ltd.
    Inventors: Feng-Chao Chung, Kun-Ti Liu
  • Patent number: 9213169
    Abstract: The invention relates to an optical unit comprising. The present invention further relates to the use of such an optical unit. Such an optical unit comprises, seen in a direction from the object side to the imaging surface, a first substrate, a first lens element, a second lens element and a second substrate, characterized in that the first substrate includes a diaphragm function.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: December 15, 2015
    Assignee: Anteryon International B.V.
    Inventors: Edwin Maria Wolterink, Yelena Vladimirovna Shulepova
  • Patent number: 9207429
    Abstract: A compact camera lens composed of the following five lenses in this sequence proceeding from the object side: a first positive meniscus lens, wherein the concave surface of the first positive meniscus lens faces away from the object side; a second negative lens, wherein the object-side surface of the second negative lens is concave; a third positive lens, wherein the image-side surface of the third positive lens is convex; a fourth biconvex lens; and a fifth negative lens. The fourth biconvex lens and the fifth negative lens are in each case cemented with one another. The object-side surface of the third positive lens and the image-side surface of the fifth negative lens are of aspherical form. The objective is particularly robust, compact, has a large aperture and very good imaging characteristics. It is suitable for example as an objective of an exterior mirror replacement camera in the automotive field.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: December 8, 2015
    Inventors: Udo Schauss, Ralf Linn
  • Patent number: 9201214
    Abstract: An imaging lens includes negative first lens having a concave image-side surface, positive second lens having a convex object-side surface in a paraxial region, an aperture stop, and positive third lens having a convex image-side surface in the paraxial region, which are arranged in this order from an object side. The Abbe numbers of materials constituting the first lens and the third lens for d-line are greater than or equal to 40. The Abbe number of a material constituting the second lens for d-line is less than or equal to 40. When the focal length of an entire system is f, and the center thickness of the second lens is D3, and the focal length of the first lens is f1, the following formulas (1?) and (2) are satisfied: 1.7<D3/f<2.9; and??(1?) ?5.0<f1/f<?1.8.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: December 1, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Taro Asami, Masato Kondo
  • Patent number: 9116327
    Abstract: An imaging lens system includes, sequentially from an object side to an image side: a first lens having a positive refractive power; a second lens having a negative refractive power; and a third lens having a negative refractive power, wherein a viewing angle ? satisfies following condition, 0.3<|tan ?|<0.8.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: August 25, 2015
    Assignee: KOLEN CO., LTD.
    Inventors: Chi Ho Ahn, Jae Hoon Cho, Ji Eun Kim, Chan Goo Kang, Se Jin Kim
  • Patent number: 9036279
    Abstract: An imaging lens provided with a negative first lens group and a positive second lens group disposed in order from the object side. The first lens group is composed of a first group first lens which is a negative biconcave single lens, and the second lens group is composed of a positive second group first lens, an aperture stop, a positive second group second lens, and a negative second group third lens disposed in order from the object side. The second group second lens and second group third lens are cemented together to form a cemented lens. The imaging lens is configured to satisfy a conditional expression (3) 0.9<dt3/f<1.3, and further configured to satisfy conditional expression (1) 31<?d2<55 or (1?): 35<?d2 and a conditional expression (2): ?10<?d1??d2<25.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: May 19, 2015
    Assignee: FUJIFILM CORPORATION
    Inventors: Katsuhisa Tsutsumi, Yoshiaki Ishii
  • Patent number: 9030761
    Abstract: An imaging lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element and a third lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The second lens element with refractive power has an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The third lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the third lens element has at least one convex shape in an off-axis region thereof, and both of an object-side surface and the image-side surface are aspheric. The imaging lens assembly has a total of three lens elements with refractive power.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: May 12, 2015
    Assignee: Largan Precision Co., Ltd.
    Inventor: Wei-Yu Chen
  • Publication number: 20150124341
    Abstract: Disclosed is a conversion lens including a sequential assembly of lens elements. The first lens element has a positive refractive power, the second lens element and the third lens element, the second and third lens elements each having a surface convex with respect to the first lens element. The characteristics of at least one lens element are selected to compensate for the use of the conversion lens in water. Desirably the first lens element includes a first part having a negative meniscus lens and a second part forming a bi-convex lens.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 7, 2015
    Inventor: YUK SHING LAI
  • Patent number: 9019630
    Abstract: A lens assembly of optical imaging system includes a first lens element, a second lens element, and a third lens element. The first lens element with positive refractive power has a convex object-side surface near an optical axis. The second lens element with negative refractive power has a concave object-side surface near the optical axis, and is made of plastic. The object-side surface and the image-side surface of the second lens element are aspheric. The third lens element with negative refractive power has an image-side surface being concave near the optical axis and convex away from the optical axis, and is made of plastic. The object-side surface and the image-side surface of the third lens element are aspheric.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: April 28, 2015
    Assignee: Largan Precision Co., Ltd.
    Inventors: Tsung-Han Tsai, Wei-Yu Chen
  • Patent number: 9007701
    Abstract: An optical lens assembly for image pickup, sequentially arranged from an object side to an image side along the optical axis, comprising: the first lens element with negative refractive power has a convex object-side surface and a concave image-side surface; the second lens element with positive refractive power has bi-convex surfaces; and the third lens element with negative refractive power, made of plastic, and which has a convex object-side surface and a concave image-side surface with at least one thereof is aspheric. By such arrangements, the optical lens assembly for image pickup satisfies conditions related to shorten the total length and to reduce the sensitivity for use in compact cameras and mobile phones with camera functionalities.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: April 14, 2015
    Assignee: Largan Precision Co.
    Inventors: Chih-Wen Hsu, Ming-Ta Chou
  • Patent number: 8995062
    Abstract: Projection lens having improved properties such as a high throughput are described. In one embodiment, a projection lens is described comprising in sequential order from a screen side a first lens group, a second lens group of positive refractive power, and a third lens group of positive refractive power. At least one lens group has an aspheric surface. The ratio of the focal length of the projection lens (F) to the focal length of each of the lens groups (F1, F2, and F3) is such that |F1/F|>5, 0.5<|F2/F|<0.9, and 1<F3/F<8. In another embodiment, a projection lens is described comprising in sequential order from a screen side a first lens group, a second lens group of positive refractive power, and a third lens group of positive refractive power. At least one lens group has an aspheric surface. The ratio of the focal length of the projection lens (F) to the focal length of each of the lens groups (F1, F2, and F3) is such that |F1/F|>5, 0.5<|F2/F|<2.0, and 1.4<F3/F<8.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: March 31, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Zhisheng Yun, Stephen J. Willett
  • Patent number: 8995065
    Abstract: An imaging lens includes: a first lens group; a second lens group having positive refractive power; and a third lens group having negative refractive power, which are arranged in order from an object side, wherein the first lens group includes a front lens group having a negative lens in a most object side, a diaphragm, and a rear lens group having positive refractive power, wherein the second lens group includes a first lens having negative refractive power, a second lens having positive refractive power, and a third lens having positive refractive power in an order from the object side, and wherein, when focusing is performed, the second lens group is moved in an optical axis direction.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: March 31, 2015
    Assignee: Sony Corporation
    Inventor: Naoki Miyagawa
  • Publication number: 20150085383
    Abstract: A wide-angle photographic lens system enabling correction of distortion composed of three lenses, in which a first lens, an iris, a second lens and a third lens sequentially arranged along an optical axis from an object, wherein the first lens has weak refractivity, the second lens has strong positive refractivity, and the third lens has negative refractivity, wherein the lens system satisfies relations, |f1/f|>2.8, f2/f<1, and te/tc<0.4, wherein f1 is a focal length of the first lens, f is a total focal length of all the lenses, f2 is a focal length of the second lens, te is a lens thickness on an effective diameter of a rear surface of the second lens, and tc is a center thickness of the second lens.
    Type: Application
    Filed: December 19, 2013
    Publication date: March 26, 2015
    Applicant: Sekonix Co., Ltd.
    Inventors: Soon Chul Choi, Seung Nam Nam, Sung Nyun Kim
  • Patent number: 8964311
    Abstract: The present invention provides an optical unit and an imaging device, which are capable of providing a small-sized low-cost imaging optical system that has high resolution and high heat resistance. The optical unit comprises at least a first lens group (110) and a second lens group (120) among the first lens group, the second lens group and a third lens group which are sequentially arranged from the object side to the image plane side. The first lens group (110) comprises an assembly of at least a first lens element (111) and a second lens element (112), a transparent body (113) and a third lens element (114) which are sequentially arranged from the object side to the image plane side. The first lens element (111) and the second lens element (112) of the assembly are formed from resin materials that have different temperature-dependent refractive index changes.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: February 24, 2015
    Assignee: Sony Corporation
    Inventor: Tomohiko Baba
  • Patent number: 8958151
    Abstract: Provided are an ocular zoom optical system which has a wide apparent field of view even on a low power side and in which aberrations are favorably corrected while a sufficient eye relief is secured over the entire zoom range, and an optical instrument including the ocular zoom optical system. The ocular zoom optical system 3 includes, in order from the object side: a first lens group G1 having a negative refractive power; a second lens group G2 having a positive refractive power; and a third lens group G3 having a positive refractive power and at least one aspheric surface. An intermediate image I? is formed between the first lens group G1 and the second lens group G2. During zooming, the third lens group G3 is fixed on the optical axis, and the first lens group G1 and the second lens group G2 are moved in directions opposite to each other with the intermediate image I? interposed therebetween.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: February 17, 2015
    Assignee: Nikon Vision Co., Ltd.
    Inventor: Yosuke Miyazaki
  • Patent number: 8958154
    Abstract: A microscope objective lens OL includes, in order from the object side: a first lens group G1 having a positive refractive power, a second lens group G2, and a third lens group G3 having a negative refractive power, wherein the first lens group G1 includes a positive lens component L1 having a lens surface with a negative refractive power and at least one cemented lens component CL11 having a positive refractive power, the second lens group G2 includes a diffractive optical element GD that joins two diffractive element components L6 and L7 respectively made from different optical materials and which has a diffractive optical surface D on which diffractive grating grooves are formed on the bonded surface of the two diffractive element components, and at least one cemented lens component CL21, and the third lens group G3 includes at least one achromatic lens component CL31.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: February 17, 2015
    Assignee: Nikon Corporation
    Inventors: Toshi Taeko, Miyakawa Akiko
  • Publication number: 20150029600
    Abstract: Embodiments relate to an image pickup lens including a first lens having both convex surfaces, a second lens in the form of a positive meniscus lens and a third lens in the form of a negative meniscus lens, the first lens to the third lens being arranged in sequence from an object side to an image side. The first lens to the third lens are formed of the same material.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 29, 2015
    Inventors: Jin Young Kim, Duk Keun Kwon
  • Patent number: 8941930
    Abstract: An imaging lens includes a first lens; a second lens; and a third lens arranged from an object side to an image plane side. The first lens has an object-side surface with a positive curvature radius. The second lens has an object-side surface and an image plane-side surface with negative curvature radii. The third lens has an object-side surface and an image plane-side surface with positive curvature radii. The object-side surface and the image plane-side surface of the third lens are respectively formed as an aspheric shape having an inflexion point. When the whole lens system has a focal length f, the first lens has a focal length f1, the second lens has a focal length f2, and the third lens has a focal length f3, the imaging lens satisfies the following conditional expressions: f1<f2 1.0<f1/f<1.5 0.7<f2/f3<1.2.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: January 27, 2015
    Assignees: Optical Logic Inc., Kantatsu Co., Ltd.
    Inventors: Yoji Kubota, Kenichi Kubota, Hitoshi Hirano, Ichiro Kurihara, Yukio Sekine
  • Publication number: 20150002727
    Abstract: An imaging lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element and a third lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The second lens element with refractive power has an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The third lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the third lens element has at least one convex shape in an off-axis region thereof, and both of an object-side surface and the image-side surface are aspheric. The imaging lens assembly has a total of three lens elements with refractive power.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 1, 2015
    Inventor: Wei-Yu CHEN
  • Patent number: 8922917
    Abstract: An optical unit that is configured of a three-group wide-angle lens, that is capable of suppressing optical distortion to a small amount, that has favorable optical characteristics, and that is tolerant of reflow, and an image pickup apparatus are provided. An optical unit 100 includes: a first lens group 110 including a first lens element 111; a second lens group 120 including a second lens element 121, a first transparent member 122, and a third lens element 123 that are arranged in order from object plane toward image plane; and a third lens group 130 including a fourth lens element 131, a second transparent member 132, and a fifth lens element 33 that are arranged in order from the object plane toward the image plane, the first lens group 110, the second lens group 120, and the third lens group 130 being arranged in order from the object plane toward the image plane.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: December 30, 2014
    Assignee: Sony Corporation
    Inventor: Tomohiko Baba
  • Patent number: 8922913
    Abstract: A wafer-level lens system includes a first substrate, a first lens having a planar surface in contact with the first substrate and a concave aspheric surface, a second substrate, a second lens having a convex aspheric surface facing the first lens and a planar surface in contact with the second substrate, a third lens having a planar surface in contact with the second substrate and a concave aspheric surface, a third substrate, a fourth lens having a convex aspheric surface facing the third lens and a planar surface in contact with the third substrate, and a fifth lens having a planar surface in contact with the third substrate and a concave aspheric surface.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: December 30, 2014
    Assignee: OmniVision Technologies, Inc.
    Inventors: Chuen-Yi Yin, Jau-Jan Deng
  • Patent number: 8908286
    Abstract: A zoom lens system includes, in order from the object side to the image side, a first, a second, and a third lens groups. The first lens group includes, in order from the object side to the image side, a first and a second lenses. The second lens group is capable of floating to realize an image stabilizating function and includes, in order from the object side to the image side, a third to sixth lenses. The zoom lens system satisfies various formulas, including 0.3<d2a/D2<0.4, wherein d2a is the distance between image-side surfaces of the fifth lens and of the sixth lens, and D2 is a width of the second lens group along an optical axis of the zoom lens system.
    Type: Grant
    Filed: April 1, 2012
    Date of Patent: December 9, 2014
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Fang-Ying Peng, Hai-Jo Huang, Sheng-An Wang, An-Tze Lee, Xiao-Na Liu
  • Patent number: 8885270
    Abstract: A single-focal-length imaging lens system achieves focusing by, while keeping first and third lens groups stationary relative to the image plane, moving a second lens group along the optical axis. The second lens group includes a positive lens element. The third lens group includes an aspherically shaped lens element having an inflection point at a position other than the intersection with the optical axis. The first and second air lenses formed by the intervals between the first and second and between the second and third lens groups have negative and positive refractive powers respectively. The conditional formula 0?|Fi1/Fi2|?|Fm1/Fm2|?10 is fulfilled (Fi1 and Fi2 representing the focal lengths of the first and second air lenses, respectively, when focusing on the infinite object distance; Fm1 and Fm2 representing the focal lengths of the first and second air lenses, respectively, when focusing on the closest object distance).
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: November 11, 2014
    Assignee: Konica Minolta Advanced Layers, Inc.
    Inventors: Hiroaki Tanaka, Keiji Matsusaka, Eigo Sano, Maiko Nishida
  • Publication number: 20140327977
    Abstract: A method of manufacturing a lens module including following is provided. A first lens plate having a plurality of first lens sections, a second lens plate having a plurality of second lens sections and a third lens plate having a plurality of third lens sections are provided. The first lens sections of the first lens plate are separated to form a plurality of first lens units. The second and third lens plates are connected. A relative position between each of the first lens units and one of the second lens sections corresponding to the first lens unit is adjusted. Each of the first lens units and the second lens section corresponding to the first lens unit are connected. The second and third lens sections are separated to form a plurality of second lens units and a plurality of third lens units connected to the second lens units.
    Type: Application
    Filed: July 15, 2014
    Publication date: November 6, 2014
    Inventors: Yin-Dong Lu, Han-Yi Kuo
  • Patent number: 8879169
    Abstract: This invention provides an image capturing lens system comprising three non-cemented lens elements with refractive power: a first lens element with positive refractive power having a convex object-side surface, and both the object-side and image-side surfaces being aspheric; a plastic second lens element with negative refractive power having a concave object-side surface and a convex image-side surface, and both the object-side and image-side surfaces being aspheric; and a plastic third lens element having a convex object-side surface and a concave image-side surface, and both the object-side and image-side surfaces being aspheric. By such arrangement, the space of the image capturing lens system can be allocated much more properly and thereby an image capturing lens system with shorter total track length can be obtained while retaining superior image quality.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: November 4, 2014
    Assignee: Largan Precision Co., Ltd.
    Inventors: Dung-Yi Hsieh, Tsung-Han Tsai, Wei-Yu Chen
  • Publication number: 20140313395
    Abstract: A wide-angle lens system includes, in an order from an object side toward an image surface side: a first lens group having positive or negative refractive power; a second lens group having positive refractive power; and a third lens group having negative refractive power. When an object position changes from an infinite distance to a nearest distance, the first and third lens groups are fixed, and the second lens group moves along an optical axis to perform focusing.
    Type: Application
    Filed: November 11, 2013
    Publication date: October 23, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Yong-jae Lee
  • Patent number: 8842380
    Abstract: An imaging lens includes: a first lens group; a second lens group having positive refractive power; and a third lens group having negative refractive power, which are arranged in order from an object side, wherein the first lens group includes a former lens group having a negative lens in a most object side, a diaphragm, and a rear lens group, and wherein, when focusing is performed, the second lens group is moved in the optical axis direction.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: September 23, 2014
    Assignee: Sony Corporation
    Inventor: Toshihiro Sunaga
  • Patent number: 8804255
    Abstract: A variety of optical arrangements and methods of modifying or enhancing the optical characteristics and functionality of these optical arrangements are provided. The optical arrangements being specifically designed to operate with camera arrays that incorporate an imaging device that is formed of a plurality of imagers that each include a plurality of pixels. The plurality of imagers include a first imager having a first imaging characteristics and a second imager having a second imaging characteristics. The images generated by the plurality of imagers are processed to obtain an enhanced image compared to images captured by the imagers.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: August 12, 2014
    Assignee: Pelican Imaging Corporation
    Inventor: Jacques Duparre
  • Patent number: 8792186
    Abstract: An imaging lens includes a first lens; a second lens; and a third lens arranged from an object side to an image plane side. The first lens has an object-side surface having a positive curvature radius R1f and an image plane-side surface having a negative curvature radius R1r. The second lens has an object-side surface and an image plane-side surface with negative curvature radii. The third lens has an object-side surface and an image plane-side surface with positive curvature radii and formed as aspheric surfaces having inflexion points. When the whole lens system has a focal length f, the first lens has a focal length f1, the second lens has a focal length f2, and the third lens has a focal length f3, the imaging lens satisfies the following conditional expressions: f1<f2<f3 1.0<f1/f<1.5 ?0.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: July 29, 2014
    Assignees: Optical Logic Inc., Kantatsu Co., Ltd.
    Inventors: Yoji Kubota, Kenichi Kubota, Hitoshi Hirano, Ichiro Kurihara, Sayuri Noda
  • Patent number: 8792184
    Abstract: An image-capturing lens includes, in order from an object side: a meniscus-shaped first lens which has positive power near an optical axis; a second lens which has positive power near the optical axis and has negative power in the periphery of the second lens; and a meniscus-shaped third lens. The image-capturing lens satisfies the following conditional formulas: TL/f<1.10, 2.00<(r2+r1)/(r2?r1)<4.00, and 0.07<D2/f<0.19, where TL: the air-converted distance from the object-side surface of the first lens to the image-side surface thereof, f: the focal length of the entire system, r2: the radius of curvature of the first lens on the image side thereof, r1: the radius of curvature of the first lens on the object side thereof, D2: the distance between the first lens and the second lens.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: July 29, 2014
    Assignee: Konica Minolta Advanced Layers, Inc.
    Inventors: Kazuki Matsui, Eigo Sano, Yasunari Fukuta
  • Patent number: 8786964
    Abstract: A photographing lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element and a third lens element. The first lens element with positive refractive power has an object-side surface being convex at a paraxial region. The second lens element with negative refractive power has an object-side surface being concave at a paraxial region and an image-side surface being concave or planar at a paraxial region, wherein the second lens element is made of plastic material and the surfaces thereof are aspheric. The third lens element with negative refractive power has an object-side surface being concave at a paraxial region, and an image-side surface being concave at a paraxial region and being convex at a peripheral region, wherein the third lens element is made of plastic material, and the surfaces thereof are aspheric.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: July 22, 2014
    Assignee: Largan Precision Co., Ltd.
    Inventors: Tsung-Han Tsai, Wei-Yu Chen
  • Publication number: 20140198399
    Abstract: A method of manufacturing a lens module including following is provided. A first lens plate having a plurality of first lens sections, a second lens plate having a plurality of second lens sections and a third lens plate having a plurality of third lens sections are provided. The first lens sections of the first lens plate are separated to form a plurality of first lens units. The second and third lens plates are connected. A relative position between each of the first lens units and one of the second lens sections corresponding to the first lens unit is adjusted. Each of the first lens units and the second lens section corresponding to the first lens unit are connected. The second and third lens sections are separated to form a plurality of second lens units and a plurality of third lens units connected to the second lens units.
    Type: Application
    Filed: January 17, 2013
    Publication date: July 17, 2014
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Yin-Dong Lu, Han-Yi Kuo