Microscope Objective Patents (Class 359/656)
  • Patent number: 10330908
    Abstract: An immersion objective includes a first lens group, with a positive refractive power, that converts divergent light from an object point into convergent light and a second lens group, with a negative refractive power, that is arranged closer to the image than is the first lens group. The immersion objective satisfies the conditional expression below where WD is a working distance of the immersion objective and D is a distance on an optical axis of the immersion objective from the observation target plane to the lens surface closest to the image in the immersion objective. 0.11?WD/D?0.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: June 25, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Kenichiro Abe
  • Patent number: 10324269
    Abstract: An immersion objective has a numerical aperture of 1.42 or higher, and includes in order from the object side a positive first lens group, a positive second lens group, and a negative third lens group. The first lens group includes a first cemented lens that includes a plano-convex lens and a first meniscus lens, and a positive lens. The second lens group includes a plurality of cemented lenses. The third lens group includes in order from the object side a second cemented lens that includes a positive lens and a negative lens, a negative lens that has a concave surface facing the object side, and a positive lens. When H is a maximum height of an axial marginal ray, f is a focal length of the objective, and NAob is the numerical aperture, the objective satisfies a conditional expression below 3.5?(H/f)×NAob?5.2??(1).
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: June 18, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Hirokazu Konishi
  • Patent number: 10162163
    Abstract: An image pickup apparatus includes an image pickup element and an optical system. The image pickup element includes a plurality of pixels, and the plurality of pixels is arranged in rows two-dimensionally. The optical system includes in order from an object side, a first lens unit which includes a plurality of lenses, a stop, and a second lens unit which includes a plurality of lenses. The first lens unit includes a first object-side lens which is disposed nearest to an object, and the second lens unit includes a second image-side lens which is disposed nearest to an image. The following conditional expressions (1), (2), (3), (4), and (5) are satisfied: 3250<2Y/p??(1), ?1.0<???(2), CRAobj<10 deg??(3), 2.0<LL/?(Y×Yobj)<15.0??(4), and 0.5<LTL/Doi<0.95??(5).
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: December 25, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Yoshihiro Uchida, Kenichiro Abe
  • Patent number: 10162157
    Abstract: An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. At least one lens among the first to the sixth lenses has positive refractive force. The seventh lens has negative refractive force, wherein both surfaces thereof can be aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the seventh lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: December 25, 2018
    Assignee: ABILITY OPTO-ELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yeong-Ming Chang, Chien-Hsun Lai, Nai-Yuan Tang
  • Patent number: 10042152
    Abstract: An immersion microscope objective includes a first lens group having a positive refractive power, a second lens group having a positive refractive power, and a third lens group having a negative refractive power. The first lens group includes a first lens surface and a second lens surface. The first lens surface is positioned nearest to the object side, and the second lens surface is positioned on an image side of the first lens surface and nearest to the first lens surface. The conditional expression ?3?(rG12/f)×(NAob/ndimm)2??1.7 is satisfied, in which rG12 denotes a radius of curvature at the second lens surface, f denotes a focal length of an entire system of the immersion microscope objective, NAob denotes an object-side numerical aperture of the immersion microscope objective, and ndimm denotes a refractive index of an immersion liquid for a d-line.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: August 7, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Yasuhiro Yamawaki
  • Patent number: 10042144
    Abstract: In an image pickup apparatus including an optical system and an image pickup element, the optical system includes, in order from an object side to an image side, lens(es), an aperture stop, and lens(es). The lens arranged at the most image side in the optical system is a negative lens, and an infrared cut film is formed on at least one lens surface in the optical system. An optical axial distance from the exit pupil of the optical system to the image plane when focusing on an infinite object, an optical axial distance from the lens surface provided with the infrared cut film to the image plane when focusing on the infinite distance object, the curvature radius of the lens surface provided with the infrared cut film, and a radius of a circle circumscribed about an effective imaging area of the image pickup element are appropriately set.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: August 7, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yoshihisa Tashiro
  • Patent number: 10016119
    Abstract: Provided is an objective optical system composed of, in order from an object side, a first and a second groups, the first group including: a positive and single lens having a flat surface on an object side and a convex surface directed toward an image plane; a positive and single lens having a convex surface directed toward an object; a positive lens in which a convex lens having a flat surface directed toward the object and a negative lens are cemented, and the second group including: a lens in which a negative lens and a double-convex lens are cemented; a lens in which a lens having a concave surface directed toward the object and a lens having a convex surface directed toward the object are cemented; a negative lens in which a negative lens, a positive lens, and a negative lens are cemented; and a positive and compound lens.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: July 10, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Takeshi Watanabe, Tadashi Hirata
  • Patent number: 9939622
    Abstract: A microscope optical system includes a first lens group having a positive power, a second lens group, and a third lens group including a positive lens. The first lens group includes: a first lens component arranged closest to an object, the first lens component including a first meniscus lens that has a meniscus shape with a concave surface facing the object side; a second lens component having a positive power that has a meniscus lens shape with the concave surface facing the object side; and a cemented lens including a positive lens and a negative lens that is made of a higher-dispersion material than a material of the positive lens. When NA, ?G3, DG3i, DG23 represent a numerical aperture of the microscope optical system, a lateral magnification of the third lens group, a spacing between the third lens group and an image plane, a spacing between the second lens group and the third lens group, the microscope optical system satisfies the following conditional expressions: 0.25<NA?1.51 ??(1); 0.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: April 10, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Kenichiro Abe
  • Patent number: 9864167
    Abstract: An image forming lens is formed by sequentially arranging, from an object side to an image side, a first lens group having positive refractive power, an aperture stop, a second lens group having positive refractive power, and a third lens group having positive or negative refractive power. When focusing is performed from a long distance to a short distance, the third lens group is fixed relative to an image surface, and the first lens group, the aperture stop, and the second lens group are moved integrally to the object side. In the image forming lens, the third lens group is formed by sequentially arranging, from the object side to the image side, two lenses in order of a negative lens and a positive lens, and a conditional expression is satisfied: 0.20<D/L3F-I<0.60, where D is an air space between the negative lens and the positive lens which form the third lens group, and L3F-I is a distance from an object-side surface of the negative lens of the third lens group to the image surface.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: January 9, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuyasu Ohashi, Yoshifumi Sudoh
  • Patent number: 9775494
    Abstract: An oblique-viewing objective optical system includes in order from an object side, a front-side lens group which includes a negative lens, an optical path converting element, an aperture stop, and a rear-side lens group having a positive refractive power, wherein the rear-side lens group includes a positive lens and a cemented lens having a positive refractive power, and the cemented lens includes in order from the object side a positive lens and a negative lens.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: October 3, 2017
    Assignee: OLYMPUS CORPORATION
    Inventor: Yoshiharu Takasugi
  • Patent number: 9709790
    Abstract: An immersion microscope objective includes, a first lens group, a second lens group, and a third lens group, wherein the first lens group has a positive refractive power and includes a first cemented lens disposed nearest to the object side in the first lens group, the second lens group includes a second cemented lens, the third lens group includes a lens component that has a positive refractive power and changes a divergent light beam incident from the second lens group to a convergent light beam, two lens components that change the convergent light beam to a divergent light beam, and a lens component that has a positive refractive power and changes the divergent light beam to a parallel light beam and emits the parallel light beam, and the following conditional expressions (1) is satisfied: 60 mm2?d0×f×NAo?500 mm2??(1).
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: July 18, 2017
    Assignee: OLYMPUS CORPORATION
    Inventor: Hirokazu Konishi
  • Patent number: 9664887
    Abstract: An illumination module for a coordinate measuring machine for measuring a workpiece by means of an optical sensor, wherein the illumination module comprises a main body having a sensor side and a workpiece side, wherein the sensor side has a first interface device at least for the sensor-side coupling of the illumination module in a defined position, and wherein the illumination module comprises at least one illumination arrangement for illuminating the workpiece. Furthermore, the main body has the form of a ring having a free central region and an edge region, wherein the at least one illumination arrangement and the first interface device are arranged in the edge region.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: May 30, 2017
    Assignee: CARL ZEISS INDUSTRIELLE MESSTECHNIK GMBH
    Inventor: Thomas Engel
  • Patent number: 9645380
    Abstract: The invention relates to a high aperture immersion objective particularly for uses in confocal microscopes where oil is the immersion fluid, which objective is composed of three lenses and/or subsystems comprising lens groups. An apochromatic correction in a range from 365 to 900 nm is achieved at high resolving numeric apertures of 1.3 to 1.4 and an object field from 0.4 to 0.625 mm by the specification of the optical components. Additionally, the immersion objective has sufficiently good transparency up to a wavelength of 340 nm.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: May 9, 2017
    Assignee: Carl Zeiss Microscopy GmbH
    Inventor: Rolf Wartmann
  • Patent number: 9612427
    Abstract: A microscopy optoelectronic device for reconstructing a three-dimensional model of a sample, which can be connected to any PC in order to obtain three-dimensional surface micro-reliefs, includes a portable device body, having a casing and a frame supporting: a digital optical sensor; an optical group, coupled to the sensor including an objective lens directed towards a distal end of the device body, faceable towards the sample; a motor that translates the optical group and sensor with respect to said frame; a connector to connect the device body to an energy source and to a device that controls the position of the optical group and to transmit the digitalized images; and a light source that provides diffused lighting at the objective lens arranged to surround a front region with respect to the objective lens and also includes a luminescent and diffusing surface having a tubular portion coaxial to the optical group.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: April 4, 2017
    Assignee: CONSIGLIO NAZIONALE DELLE RICERCHE
    Inventors: Salvatore Siano, Andrea Azelio Mencaglia, Ilaria Cacciari
  • Patent number: 9523845
    Abstract: An imaging system consisting of a cell-phone with camera as the detection part of an optical train which includes other components. Optionally, an illumination system to create controlled contrast in the sample. Uses include but are not limited to disease diagnosis, symptom analysis, and post-procedure monitoring, and other applications to humans, animals, and plants.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: December 20, 2016
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Daniel Fletcher, Wendy Hansen, Neil Switz, David N. Breslauer, Erik Douglas, Robi Maamari, Wilbur Lam, Jesse Dill
  • Patent number: 9488817
    Abstract: An immersion objective for a light microscope with a first lens group including a first and second lenses, with a third lens arranged behind the first lens group, a first air gap between the first lens group and the third lens, with a second lens group behind the third lens and including fourth, fifth and sixth lenses, a second air gap formed the third lens and the second lens group, and a third lens group behind the second lens group including seventh, eighth and ninth lenses. Tenth, eleventh and twelfth lens are provided behind the third lens group. For correction of aberrations a fourth air gap is formed between the third lens group and the tenth lens, a fifth air gap is formed between the tenth lens and the eleventh lens and a sixth air gap is formed between the eleventh lens and the twelfth lens.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: November 8, 2016
    Assignee: Carl Zeiss Microscopy GmbH
    Inventors: Renhu Shi, Werner Kleinschmidt, Georg Herbst, Holger Richter, Carsten Hoyer
  • Patent number: 9383565
    Abstract: A tube lens unit for microscopes with achromatically corrective effect for the use with objectives that image an object to infinity and that have achromatic residual errors. The tube lens unit includes of at least two lenses with the properties: nP<1.50 and vP<71 nN<1.66 and vN<37, wherein nP and nN signify the refractive index (ne) at a wavelength of 546 nm for a positive and negative lens respectively, and vP and vN signify the Abbe number (ve) at a wavelength of 546 nm for a positive and negative lens respectively, and the beam paths are characterized by the conditions: |?A|<0.60 and |?B|<0.30, wherein ?A signifies the variation of the aperture ray and ?B signifies the variation of the main ray while passing through the surfaces of the lenses.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: July 5, 2016
    Assignee: Carl Zeiss Microscopy GmbH
    Inventors: Renhu Shi, Matthias Gonschor
  • Patent number: 9297993
    Abstract: The invention relates to a ring illumination device (07) for a microscope objective (01), and a microscope objective (01) provided with such a ring illumination device (07). The ring illumination device (07) has at least two LED units (11) which are accommodated in an illumination ring (17) which can be connected to the microscope objective (01). According to the invention, the ring illumination device (07) has at least one lower entrance opening (08) and at least one upper outlet opening (09) for cooling air, for cooling the LED units (11).
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: March 29, 2016
    Assignee: Carl Zeiss Microscopy GmbH
    Inventors: Ingo Fahlbusch, Jan Buchheister, Georg Herbst, Max Funck, Uwe Wolf
  • Patent number: 9223107
    Abstract: The adapter correcting for glass thickness includes an adapter main body, a plane parallel plate, and a retainer. The adapter main body includes an attacher/detacher capable of attaching and detaching with respect to an adapter connecter on the lens barrel; a tubular accommodator extending from the attacher/detacher toward the objective along an optical axis of the field lens; and a tongue provided on the attacher/detacher side of the accommodator. The plane parallel plate includes two mutually parallel flat surfaces and is inserted into the accommodator such that the two flat surfaces are orthogonal to the optical axis of the field lens. The retainer is attached to an end of the accommodator closest to the objective and holds the plane parallel plate between the retainer and the tongue. The accommodator is formed to have a tubular length sufficient to insert at least two plane parallel plates.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 29, 2015
    Assignee: MITUTOYO CORPORATION
    Inventor: Hidekazu Sano
  • Patent number: 9207364
    Abstract: An optical lens includes a lens member and two shade layers on opposite sides of the lens member. The lens member respectively has a lens portion on each side thereof. Each shade layer has an aperture above the corresponding lens portion of the lens member to serve the function of aperture. A method uses optical lithography technique to make such optical lens in a fast way, and the shade layers will have a strong bonding strength with the lens member.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: December 8, 2015
    Assignee: GENIUS ELECTRONIC OPTICAL CO., LTD.
    Inventors: Ching-Shan Yang, Wu-Li Wang
  • Patent number: 9091844
    Abstract: The invention is directed to correcting compound lens forms for 3rd and 5th order ray aberrations. All lens design forms have limiting aberrations. The proposed classes of lenses can be corrected for all 3rd and 5th order ray aberrations. The limiting aberrations are seventh order or higher. A variety of these lenses are disclosed here for the sake of example. These lens design forms can be used in various applications including the objective lens for an endoscope or other optical instrument.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: July 28, 2015
    Assignee: KARL STORZ IMAGING, INC.
    Inventor: George E. Duckett, III
  • Publication number: 20150146304
    Abstract: An immersion microscope objective includes, a first lens group having a positive refractive power, a second lens group having a positive refractive power, and a third lens group having a negative refractive power, wherein the first lens group includes a first lens surface and a second lens surface, the first lens surface is positioned nearest to the object side and the second lens surface is positioned on an image side of the first lens surface and nearest to the first lens surface, and the following conditional expression (1) is satisfied: ?3?(rG12/f)×(NAob/ndimm)2?1.7??(1) where rG12 denotes a radius of curvature at the second lens surface, f denotes a focal length of an entire system of the immersion microscope objective, NAob denotes an object-side numerical aperture of the immersion microscope objective, and ndimm denotes a refractive index of an immersion liquid for a d-line.
    Type: Application
    Filed: October 1, 2014
    Publication date: May 28, 2015
    Applicant: OLYMPUS CORPORATION
    Inventor: Yasuhiro YAMAWAKI
  • Patent number: 9030750
    Abstract: An objective lens OL comprises: a first lens group G1 disposed on an object side, having positive refractive power as a whole and having a positive lens (plano-convex lens L1) which is disposed closest to the object and of which lens surface closest to the object is a plane or a surface having a low curvature, and at least one cemented lens (cemented lens CL12 or the like); a second lens group G2 disposed on an image side, having negative refractive power as a whole, and having a concave surface facing the image and a concave surface facing the object, which face each other; and a diffractive optical element GD in which two diffractive element constituents made from different optical materials are cemented, which has a diffractive optical surface D formed with diffraction grating grooves on the cemented surface, and which is disposed closer to the object than a position where a principal ray crosses the optical axis.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: May 12, 2015
    Assignee: Nikon Corporation
    Inventors: Miwako Yoshida, Akiko Miyakawa
  • Publication number: 20150109681
    Abstract: An immersion microscope objective includes, a first lens group, a second lens group, and a third lens group, wherein the first lens group has a positive refractive power and includes a first cemented lens disposed nearest to the object side in the first lens group, the second lens group includes a second cemented lens, the third lens group includes a lens component that has a positive refractive power and changes a divergent light beam incident from the second lens group to a convergent light beam, two lens components that change the convergent light beam to a divergent light beam, and a lens component that has a positive refractive power and changes the divergent light beam to a parallel light beam and emits the parallel light beam, and the following conditional expressions (1) is satisfied: 60 mm2?d0×f×NAo?500 mm2??(1)
    Type: Application
    Filed: October 7, 2014
    Publication date: April 23, 2015
    Applicant: OLYMPUS CORPORATION
    Inventor: Hirokazu KONISHI
  • Publication number: 20150109682
    Abstract: An immersion microscope objective includes, in order from an object side, a first lens group having a positive refractive power, a second lens group, and a third lens group, wherein the first lens group changes a light beam from an object to a convergent light beam, the second lens group has a refractive power smaller than that of the first lens group, and the following conditional expression (1-1) is satisfied: 7.5 mm?NAo×d0??(1-1) where NAo denotes an object-side numerical aperture of the immersion microscope objective, and d0 denotes a working distance of the immersion microscope objective.
    Type: Application
    Filed: October 14, 2014
    Publication date: April 23, 2015
    Applicant: OLYMPUS CORPORATION
    Inventor: Takashi KASAHARA
  • Patent number: 8988780
    Abstract: The invention relates to a planapochromatically-corrected immersion microscope objective for high-resolution microscopy applications with changing dispersive immersion conditions, having a plurality of lenses and/or subsystems (T1, T2, T3) comprising lens groups and a corrective function (LA2) for eliminating spherical aberrations. According to the invention, the microscope objective has an additional corrective function (LA1) for eliminating longitudinal chromatic aberrations caused by dispersive changes in the immersion by changing the air gaps between the lenses or gap combinations, wherein the influence on the longitudinal chromatic aberration corresponds to a rotation of the curve s(?), which describes the color point (s) as a function of the wavelength (?).
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: March 24, 2015
    Assignee: Carl Zeiss Microscopy GmbH
    Inventors: Manfred Matthae, Georg Herbst
  • 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: 20150022799
    Abstract: An imaging optical system includes a plurality of mirrors configured to image an object field in an object plane of the imaging optical system into an image field in an image plane of the imaging optical system. An illumination system includes such an imaging optical system. The transmission losses of the illumination system are relatively low.
    Type: Application
    Filed: October 6, 2014
    Publication date: January 22, 2015
    Inventors: Hans-Juergen Mann, Armin Schoeppach, Johannes Zellner
  • Patent number: 8928987
    Abstract: A microscope objective lens satisfies the following conditional expressions (1) and (2). 0.05<NA<0.4??(1) 3 mm<D/NA<50 mm??(2) where, NA denotes a numerical aperture on an object side of the microscope objective lens, and D denotes a total thickness of the microscope objective lens.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: January 6, 2015
    Assignee: Olympus Corporation
    Inventors: Yoshimasa Suzuki, Kazuo Kajitani, Hisashi Goto, Hisashi Ode
  • Patent number: 8908294
    Abstract: An optical system includes a first optical group configured to form, at a first intermediate image plane, a first intermediate image of an object disposed at an object plane; a second optical group and a third optical group configured to form, at an image plane, a final image of the object based on the first intermediate image. The first optical group consists of a solid lens having a first surface and a concave second surface facing the first surface; the solid lens is configured to collect light originated at the object and to reflect thereinside at least twice the collected light. The second optical group includes at least one mangin mirror and the third optical group includes a plurality of lenses. The first, second and third optical groups can appropriately control axial chromatic aberration and Petzval curvature, so that imaging with high NA illumination may be performed.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: December 9, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masatsugu Nakano
  • Publication number: 20140320975
    Abstract: An immersion microscope objective includes a first lens group having a positive refractive power, a second lens group having a positive refractive power, and a third lens group having a negative refractive power. The first lens group includes a cemented lens of a positive lens and a meniscus lens, and at least one positive single lens, the second lens group changes a divergent light beam to a convergent light beam, and the third lens group includes an object-side lens group and an image-side lens group disposed concave surfaces are face-to-face sandwiching one air space. There is a plurality of lenses having a positive refractive power, and at least one lens having a positive refractive power out of the plurality of lenses having a positive refractive power has a cemented surface which is cemented to a lens having a negative refractive power.
    Type: Application
    Filed: April 21, 2014
    Publication date: October 30, 2014
    Applicant: OLYMPUS CORPORATION
    Inventor: Takashi KASAHARA
  • Publication number: 20140247502
    Abstract: A microscope immersion objective having a numerical aperture of NA>1.36 includes a front lens group. The front lens group has a first, object-side optical element having a plane parallel plate and a second optical element having a hyper-hemisphere. The plane parallel plate is wrung together with a planar side of the hyper-hemisphere.
    Type: Application
    Filed: February 27, 2014
    Publication date: September 4, 2014
    Inventors: Tobias Bauer, Christian Schulz
  • Patent number: 8824067
    Abstract: Provided is an endoscope objective optical system that is constituted of, in order from the object side, a positive first group, an aperture stop, and a positive second group, wherein the first group is constituted of a negative first lens whose surface on the object side is flat and a positive second lens; the second group is constituted of a combined lens formed of a positive third lens and a negative fourth lens; and Conditional Expressions (1) to (3) are satisfied. F31, F32, and f are the focal lengths of the third lens, the fourth lens, and the entire system, respectively; and R3 and R4 are the radii of curvature at the object-side surface and the image-side surface of the second lens, respectively. 1.2<f31/f<1.55 . . . (1), ?2.8<f32/f<?1.98 . . . (2), and 0.38<|R4+R3|/|R4?R3|<0.77 . . . (3).
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: September 2, 2014
    Assignee: Olympus Corporation
    Inventor: Hideyasu Takato
  • Patent number: 8817395
    Abstract: A portable high-power microscope magnification lens structure, mainly comprises: a main body, a high-power lens being disposed on a middle part thereof which is passed through, an adhesive portion being disposed on a rear edge of the main body, LED lamps used for light compensating illumination being disposed around the lens on a front side of the main body; and a rear cover, one side thereof being pivotally connected to the main body, the rear cover being foldable to cover a rear side of the main body, and a hollow space for receiving batteries being disposed on the rear cover and connected to the LED lamps through a switch; whereby, the additional unit can be attached to the lens of a cellular phone, tablet or camera, used to shoot and observe high-power microscopically magnified images, used as the teaching assistance for the observation of organisms or physical objects, and used for the microscopic magnification photography of the details of other industrial product structures, and the pictures taken from
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: August 26, 2014
    Assignee: Digilens Co., Ltd.
    Inventor: Chen-Feng Wu
  • Patent number: 8773765
    Abstract: An endoscope apparatus includes an objective optical system mounted at a distal end portion of an endoscope, which is inserted into a tube cavity, and configured to form an image of an object in the tube cavity, the objective optical system including a focusing lens movable in an optical axis direction, a solid-state image pickup device for color image pickup configured to pick up the image formed by the objective optical system, a color separation filter being arranged for each pixel in the solid-state image pickup device, a focus adjusting mechanism configured to move the focusing lens and automatically adjust the objective optical system to a focus position in a focused state, a moving range switching section configured to perform switching of a moving range of the focusing lens, a moving range limiting section configured to limit the moving range in association with the switching by the moving range switching section, and the like.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: July 8, 2014
    Assignee: Olympus Medical Systems Corp.
    Inventor: Tsutomu Sasamoto
  • Patent number: 8773757
    Abstract: The present invention provides a slit-scan multi-wavelength confocal lens module, utilizing at least two lenses having chromatic aberration for splitting a broadband light into continuously linear spectral lights having different focal length respectively. The present invention utilizes the confocal lens module employing slit-scan confocal principle and chromatic dispersion techniques and the confocal microscopy with optical sectioning ability and high resolution in spectral dispersion to establish a confocal microscopy method and system with long DOF and high resolution, capable of modulating a broadband light to produce the axial chromatic dispersion and focus on different depths toward an object's surface for obtaining the reflected light spectrum from the surface.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: July 8, 2014
    Assignee: National Taipei University of Technology
    Inventors: Liang-Chia Chen, Chao-Nan Chen, Yi-Wei Chang
  • Publication number: 20140146396
    Abstract: A portable high-power microscope magnification lens structure, mainly comprises: a main body, a high-power lens being disposed on a middle part thereof which is passed through, an adhesive portion being disposed on a rear edge of the main body, LED lamps used for light compensating illumination being disposed around the lens on a front side of the main body; and a rear cover, one side thereof being pivotally connected to the main body, the rear cover being foldable to cover a rear side of the main body, and a hollow space for receiving batteries being disposed on the rear cover and connected to the LED lamps through a switch; whereby, the additional unit can be attached to the lens of a cellular phone, tablet or camera, used to shoot and observe high-power microscopically magnified images, used as the teaching assistance for the observation of organisms or physical objects, and used for the microscopic magnification photography of the details of other industrial product structures, and the pictures taken from
    Type: Application
    Filed: November 23, 2012
    Publication date: May 29, 2014
    Inventor: Chen-Feng Wu
  • Patent number: 8730582
    Abstract: A microscope apparatus includes a laser beam source for emitting a laser beam, an objective lens for irradiating a sample with the laser beam, a phase-modulating spatial light modulator placed between the laser beam source and the objective lens at a position optically conjugate with a pupil position of the objective lens, and a beam diameter variable unit placed between the laser beam source and the phase-modulating spatial light modulator for varying a beam diameter of the laser beam incident to the phase-modulating spatial light modulator.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: May 20, 2014
    Assignee: Olympus Corporation
    Inventor: Eiji Yokoi
  • Patent number: 8730583
    Abstract: Described is a microscope objective (10, 100, 200) having an objective housing (12) which contains a lens system including a lens unit (60) capable of being moved along the optical axis (O) of the lens system to compensate for the thickness of the coverslip, and further having an adjusting device for adjusting the lens unit (60), said adjusting device including a drive unit (14, 102, 202) and a transmission (42, 44, 46, 48, 50, 52, 54, 56, 62) which is drivable by the drive unit (14, 102, 202) and coupled to the lens unit (60). According to the present invention, the drive unit (14, 102, 202) has a motor (34) and is mounted on the objective housing (12).
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: May 20, 2014
    Assignee: Leica Microsystems CMS GmbH
    Inventor: Stefan Schek
  • Patent number: 8724227
    Abstract: A high-aperture immersion objective, in particular for confocal applications in fluorescence microscopy and for TIRF applications, having three subsystems of lenses and/or lens groups. The design of the subsystems has made it possible for a relatively large object field of 0.25 mm to be present in the case of a high-resolution numerical aperture of 1.49. Furthermore, improved transparency is possible up to a wavelength of 340 nm.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: May 13, 2014
    Assignee: Carl Zeiss Microscopy GmbH
    Inventor: Rolf Wartmann
  • Patent number: 8705178
    Abstract: A microscope objective lens includes, in an order starting from an object side, a first lens group having a positive power, a second lens group having a positive power, a third lens group having a negative power, and a fourth lens group having a positive power. The second lens group is configured to move in an optical axis direction between the first lens group and the third lens group so as to correct a variation in an aberration caused by a thickness of a cover glass. The following conditions are satisfied: 0.65<NA<1; and 1<f1/F<2, where NA is a numerical aperture of the microscope objective lens, F is a focal length of the microscope objective lens, and f1 is a focal length of the first lens group.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: April 22, 2014
    Assignee: Olympus Corporation
    Inventor: Yuso Fujita
  • Patent number: 8576482
    Abstract: An immersion microscope objective formed of thirteen or fewer lens elements includes, in order from the object side, first and second lens groups of positive refractive power, a third lens group, a fourth lens group having negative refractive power with its image-side surface being concave, and a fifth lens group having positive refractive power with its object-side surface being concave. The first lens group includes, in order from the object side, a lens component that consists of a lens element of positive refractive power (when computed as being in air) and a meniscus lens element having its concave surface on the object side. Various conditions are satisfied to ensure that images of fluorescence, obtained when the immersion microscope objective is used in a laser scanning microscope that employs multiphoton excitation to observe a specimen, are bright and of high resolution. Various laser scanning microscopes are also disclosed.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: November 5, 2013
    Assignee: Olympus Corporation
    Inventors: Masayoshi Saito, Eiji Yokoi, Kenichi Kusaka
  • Publication number: 20130271829
    Abstract: A microscope objective comprises in order from an object side, a first lens group, a second lens group, and a third lens group. The first lens group includes a first cemented lens, and at least one positive single lens, the second lens group includes a second cemented lens, and the third lens group includes a first lens component and a second lens component. A positive lens and a meniscus lens are cemented in the first cemented lens. A surface nearest to an image side of the first lens component is a concave surface, and a surface nearest to the object side of the second lens component is a concave surface. The first lens component and the second lens component are disposed such that the both concave surfaces are face-to-face, and the following conditional expression (1) is satisfied. 0.5<(n0/nlo)/NAob<0.
    Type: Application
    Filed: March 17, 2013
    Publication date: October 17, 2013
    Inventor: Takashi Kasahara
  • Publication number: 20130271847
    Abstract: An immersion objective for a light microscope with a first lens group including a first and second lenses, with a third lens arranged behind the first lens group, a first air gap between the first lens group and the third lens, with a second lens group behind the third lens and including fourth, fifth and sixth lenses, a second air gap formed the third lens and the second lens group, and a third lens group behind the second lens group including seventh, eighth and ninth lenses. Tenth, eleventh and twelfth lens are provided behind the third lens group. For correction of aberrations a fourth air gap is formed between the third lens group and the tenth lens, a fifth air gap is formed between the tenth lens and the eleventh lens and a sixth air gap is formed between the eleventh lens and the twelfth lens.
    Type: Application
    Filed: April 10, 2013
    Publication date: October 17, 2013
    Applicant: Carl Zeiss Microscopy GmbH
    Inventors: Renhu Shi, Werner Kleinschmidt, Georg Herbst, Holger Richter, Carsten Hoyer
  • Patent number: 8508856
    Abstract: An immersion microscope objective formed of thirteen or fewer lens elements includes, in order from the object side, first and second lens groups of positive refractive power, a third lens group, a fourth lens group having negative refractive power with its image-side surface being concave, and a fifth lens group having positive refractive power with its object-side surface being concave. The first lens group includes, in order from the object side, a lens component that consists of a lens element of positive refractive power (when computed as being in air) and a meniscus lens element having its concave surface on the object side. Various conditions are satisfied to ensure that images of fluorescence, obtained when the immersion microscope objective is used in a laser scanning microscope that employs multiphoton excitation to observe a specimen, are bright and of high resolution. Various laser scanning microscopes are also disclosed.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: August 13, 2013
    Assignee: Olympus Corporation
    Inventors: Masayoshi Saito, Shuhei Horigome, Noriyuki Sugizaki
  • Publication number: 20130194678
    Abstract: A microscope objective lens satisfies the following conditional expressions (1) and (2). 0.05<NA<0.4??(1) 3 mm<D/NA<50 mm??(2) where, NA denotes a numerical aperture on an object side of the microscope objective lens, and D denotes a total thickness of the microscope objective lens.
    Type: Application
    Filed: January 31, 2013
    Publication date: August 1, 2013
    Applicant: OLYMPUS CORPORATION
    Inventor: Olympus Corporation
  • Patent number: 8498048
    Abstract: A focusing apparatus for use with an optical system having a high NA objective lens includes an image forming and capturing mechanism for forming an image in an intermediate image zone and for capturing an image by receiving and refocusing light from a selected focal plane within the intermediate image zone, and a focus adjusting mechanism for adjusting the position of the selected focal plane within the intermediate image zone. The image forming and capturing mechanism includes at least one high NA lens. In use, spherical aberration introduced by the high NA objective lens is reduced.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: July 30, 2013
    Assignee: Isis Innovations Limited
    Inventors: Tony Wilson, Rimvydas Juskaitis, Martin James Booth, Edward Botcherby
  • Patent number: 8488248
    Abstract: An immersion microscope objective includes, in order from the object side, a first lens group having positive refractive power for converting the luminous flux from an object into convergent luminous flux, a second lens group having the refractive power lower than that of the first lens group, and a third lens group, and satisfies the following conditional expression where NA indicates the numerical aperture on the object side, and d0 indicates a working distance: 3 mm<NA×d0<8 mm.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: July 16, 2013
    Assignee: Olympus Corporation
    Inventors: Takashi Kasahara, Katsuyuki Abe, Kenichi Kusaka
  • Patent number: 8441529
    Abstract: An endoscope objective lens unit includes a front lens group and a rear lens group with a diaphragm interposed therebetween. The front lens group includes a first lens and a second lens, and the rear lens group includes a third lens, a fourth lens and a fifth lens. The endoscope objective lens unit satisfies following expressions (1A) to (4): (1A) ?3 <SF ?1; (2) ?3 <Fr/Ff <?1.1; (3) ?1.6 <Ff/f <?0.6; and (4) Ff/f1 <1.6, where SF is a shape factor, Ff is a focal length of the front lens group, Fr is a focal length of the rear lens group, f is a focal length of the entire unit, and f1 is a focal length of the first lens.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: May 14, 2013
    Assignee: Olympus Medical Systems Corp.
    Inventor: Tsutomu Sasamoto
  • Patent number: RE46984
    Abstract: A method and apparatus for using in an imaging scanner. The apparatus includes a solid-state imager, an imaging lens assembly comprising a base lens and a MEMS lens, and an electric circuitry operative to transfer the image captured by the solid-state imager to a decoding circuitry. The imaging lens assembly is configured to focus light reflected from the target object onto the array of photosensitive elements in the solid-state imager by passing the light reflected from the target object through the base lens followed by the MEMS lens.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: August 7, 2018
    Assignee: Symbol Technologies, LLC
    Inventor: David Tsi Shi