Patents Examined by Thong Q Nguyen
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Patent number: 10473902Abstract: A projection system that can be incorporated in a projector includes a first lens unit that makes a screen (enlargement-side image formation plane), which is located on the enlargement-side, conjugate with an intermediate image and a second lens unit that makes the intermediate image conjugate with a reduction-side image formation plane, which is located on the reduction side. The first lens unit has positive power, and the second lens unit has negative power. A second-lens-unit intermediate-image-side first lens, which is provided in the second lens unit and closest to the intermediate image, has positive power. The following expression is satisfied: ?0.3?fU1/fU2<0 where fU1 denotes the focal length of the first lens unit, and fU2 denotes the focal length of the second lens unit.Type: GrantFiled: May 22, 2017Date of Patent: November 12, 2019Assignee: SEIKO EPSON CORPORATIONInventor: Koji Shiokawa
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Patent number: 10466524Abstract: A window is provided that includes a first substrate, a second substrate spaced apart from the first substrate, an intermediate substrate between the first and second substrate and having a first transparent electrode on a surface proximal to the first substrate and second transparent electrode on a surface proximal to the second substrate, a first electrode on a surface of the first substrate proximal to the intermediate substrate, a second electrode on a surface of the second substrate proximal to the intermediate substrate, a light absorbing layer comprising an electrochromic medium between the first substrate and the intermediate substrate, and a light scattering layer comprising a liquid crystal material between the intermediate substrate and the second substrate.Type: GrantFiled: February 29, 2016Date of Patent: November 5, 2019Assignee: GENTEX CORPORATIONInventors: William L. Tonar, Henry A. Luten, George A. Neuman, John S. Anderson, Gary J. Dozeman, Tammy G. Morgan
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Patent number: 10451854Abstract: The imaging optical system consists of a first optical system and a second optical system in order from a magnified side. The first optical system consists of a la lens group, first optical path bender, and a 1b lens group in order from the magnified side, and the second optical system consists of a 2a lens group, second optical path bender, and a 2b lens group in order from the magnified side. The second optical system forms an image on an image display surface as an intermediate image, and the first optical system forms the intermediate image on a magnified-side conjugate plane, to satisfy the following predetermined Conditional Expression (1), 3<d/I??(1).Type: GrantFiled: May 23, 2017Date of Patent: October 22, 2019Assignee: FUJIFILM CorporationInventor: Yukiko Nagatoshi
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Patent number: 10451861Abstract: There is provided a medical observation device including: a microscope unit that includes an image sensor and images an operative site; and a holding unit that holds the microscope unit on a front end side. The holding unit includes a first rotation axis unit that supports the microscope unit to allow rotation about a first rotation axis substantially aligned with an optical axis of the microscope unit. From the microscope unit, a cable group including at least a signal cable that transmits a signal related to the image sensor and a light guide that guides illuminating light for imaging is run towards an outside through an interior of a housing of the first rotation axis unit.Type: GrantFiled: September 13, 2017Date of Patent: October 22, 2019Assignee: SONY OLYMPUS MEDICAL SOLUTIONS INC.Inventors: Kenji Hirose, Gakuji Higuchi, Yasuhiro Okabe
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Patent number: 10451956Abstract: A lens driving device is provided with: a driving part including a movable part and a fixing part, a base member having a rectangular shape in plan view, wherein a shield cover is attached at a peripheral portion of the base member, and a side surface of the peripheral portion and a lower inner peripheral surface of the shield cover are bonded to each other, and a ground terminal part disposed in the base member. The base member includes at a first side of the peripheral portion a plurality of terminal housing parts recessed from the side surface. The ground terminal part includes a first ground terminal part integrally attached to the first side, and the first ground terminal part includes a plurality of ground terminals having different lengths, the ground terminals being respectively disposed in the plurality of terminal housing parts to be separated from the side surface.Type: GrantFiled: December 24, 2015Date of Patent: October 22, 2019Assignee: MITSUMI ELECTRIC CO., LTD.Inventor: Shota Kudo
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Patent number: 10441379Abstract: The disclosure demonstrates a multipurpose illuminator used in medical examinations. The multipurpose illuminator described herein employs a housing incorporating two magnification viewing lenses each having different powered magnification that allows medical practitioners to view patient tissue and structures using two different magnifications. A battery power source is also contained in the housing to provide power to an illumination source. The illumination source may include an array of LEDs to provide light for viewing the patient tissue and matter. The illumination source and the lenses may be cross polarized relative to each other to provide enhanced viewing of the patient tissues and structures. A switch is provided to initiate the LED illumination source or to provide modes of operation that provide certain of the LEDs being illuminated.Type: GrantFiled: December 28, 2017Date of Patent: October 15, 2019Assignee: 3GEN, INC.Inventor: Nizar Mullani
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Patent number: 10441138Abstract: An optical system including: a distal optical assembly; a proximal optical assembly; and an image sensor; wherein the distal and proximal optical assemblies define a beam path; the distal optical assembly couples incident beams of light from a field of view located in an object space in the proximal optical assembly; the proximal optical assembly directs the incident beams of light onto a light-sensitive surface of the image sensor; and at least one of the distal and proximal optical assemblies comprise, at least one prism arranged in the beam path, such that the at least one prism limits the field of view of the optical system on at least one side.Type: GrantFiled: July 28, 2017Date of Patent: October 15, 2019Assignee: PLYMPUS WINTER & IBE GMBHInventors: Jianxin Zhao, Mario Bock
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Patent number: 10437026Abstract: Providing a zoom lens system having excellent optical performance with a high zoom ratio, an imaging apparatus, and a method for zooming the zoom lens system. The system including, in order from an object, a first group G1 having negative refractive power, a second group G2 having positive refractive power, a third group G3 having negative refractive power, and a fourth group G4 having positive refractive power. An aperture stop S is disposed between the second group G2 and the fourth group G4. Upon zooming from a wide-angle end state to a telephoto end state, each group is moved such that a distance between the second group G2 and the third group G3 increases, a distance between the third group G3 and the fourth group G4 decreases, and the aperture stop S is moved together with the third group G3. Given conditions are satisfied.Type: GrantFiled: November 27, 2013Date of Patent: October 8, 2019Assignee: Nikon CorporationInventors: Satoru Shibata, Takeshi Suzuki, Hiroshi Yamamoto
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Patent number: 10437027Abstract: The imaging optical system consists of first and second optical systems in order from a magnified side. The second optical system forms an image on an image display surface as an intermediate image. The first optical system forms the intermediate image on a magnified-side conjugate plane. A height H of a principal ray of light having a maximum angle of view becomes maximum on a lens surface of the whole system (having focal length f) on the most magnified side, among heights of principal rays of light having a maximum angle of view on respective lens surfaces, satisfying predetermined Conditional Expressions (1) and (2): 0.03<H×|f|/(L×I)<0.09??(1) 0.35<I/dl??(2) Where L is an optical axis distance between lens surfaces on the most magnified and reduced sides, I is a reduced side maximum image height, and dl is a maximum air spacing on the optical axis within the system.Type: GrantFiled: May 23, 2017Date of Patent: October 8, 2019Assignee: FUJIFILM CorporationInventor: Yukiko Nagatoshi
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Patent number: 10437041Abstract: A magnification device including a housing having a distal open end and a proximal open end is disclosed. The housing includes an optical system including one or more objective lenses adjacent the distal open end, and one or more eye lenses adjacent the proximal open end, the optical system produced a desired level of magnification; and a filtering system having first filter selectively filtering a first group of wavelengths and a second filter selective filtering a second group of wavelengths. The first and second filters having an optical density selected based on a magnification level of the optical system. A vision enhancing assembly including a carrier device and one or more magnification devices coupled to the carrier device is also disclosed, wherein the magnification devices include filters that have optical densities based on a magnification level.Type: GrantFiled: July 10, 2018Date of Patent: October 8, 2019Assignee: Designs for Vision, Inc.Inventors: Richard E. Feinbloom, Kenneth Braganca, Margaret Burns
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Patent number: 10427606Abstract: Anisotropic film laminates for use in image-preserving reflectors such as rearview automotive mirror assemblies, and related methods of fabrication. A film may comprise an anisotropic layer such as a light-polarizing layer and other functional layers. The film having controlled water content is heated under omnidirectional pressure and vacuum to a temperature substantially equal to or above a lower limit of a glass-transition temperature range of the film so as to be laminated to a substrate. The laminate is configured as part of a mirror structure so as to increase contrast of light produced by a light source positioned behind the mirror structure and transmitted through the mirror structure towards a viewer. The mirror structure is devoid of any extended distortion and is characterized by SW and LW values less than 3, more preferably less than 2, and most preferably less than 1.Type: GrantFiled: December 28, 2015Date of Patent: October 1, 2019Assignee: GENTEX CORPORATIONInventors: John S. Anderson, William L. Tonar, Henry A. Luten, George A. Neuman, Gary J. Dozeman, Tammy G. Morgan, David J. Cammenga
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Patent number: 10423005Abstract: An electromagnetic driving device is provided which includes a stationary portion, an OIS driving assembly, a movable portion, and a flexible member. The stationary portion and the movable portion are arranged along a main axis. The OIS driving assembly is configured to drive the movement of the movable portion relative to the stationary portion. The flexible member extends on a plane that is located on a side of the moveable portion and connects the movable portion to the stationary portion.Type: GrantFiled: January 30, 2017Date of Patent: September 24, 2019Assignee: TDK TAIWAN CORP.Inventors: Chao-Chang Hu, Cheng-Kai Yu
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Patent number: 10415300Abstract: Provided is a low-emissivity coating comprising successively: a first dielectric layer comprising a first metal oxide; a low-emissivity layer; and a second dielectric layer having first and second layers stacked on each other, the first layer comprising a second metal oxide, and the second layer comprising a silicon aluminum nitride, wherein each of the first and second metal oxides has a refractive index ranging from about 2.2 to about 2.6 with regard to a wavelength of about 550 nm.Type: GrantFiled: July 24, 2015Date of Patent: September 17, 2019Assignee: LG HAUSYS, LTD.Inventors: Dae-Hoon Kwon, Youn-Ki Jun
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Patent number: 10408981Abstract: A near-infrared cut filter has a transparent substrate and an optical multilayer film formed on the transparent substrate and including high-refractive index films each having a refractive index at a wavelength of 500 nm in a range of 2.0 to 2.8 and low-refractive index films each having a refractive index at the wavelength of 500 nm of less than 1.6. The multilayer film is formed such that the high-refractive and low-refractive index films are alternately stacked and that the filter has spectral transmittance characteristic for the entire wavelength range of 450 nm to less than 550 nm and part of that wavelength range for incident light having incident angle of 0 degree, and part of wavelength range of 450 nm to less than 550 nm and the entire wavelength range of 450 nm to less than 550 nm for incident light having incident angle of 40 degrees.Type: GrantFiled: May 27, 2015Date of Patent: September 10, 2019Assignee: AGC Inc.Inventors: Akihiko Yoshihara, Takaaki Murakami
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Patent number: 10409046Abstract: Field diaphragms for use in surgical microscopes are provided. The field diaphragms are positioned along an optical axis of a microscope illumination system. The field diaphragms include a frame portion configured to be received by the surgical microscope; and a non-circularly symmetric mask portion integrated with the frame portion. The mask portion is aligned such that marginal rays from an edge of the field diaphragm along a meridian of minimum diameter that reflect from a surface of an objective lens of the microscope reflect outside of an acceptance angle for relay through any ocular channel of the microscope.Type: GrantFiled: November 9, 2015Date of Patent: September 10, 2019Assignee: Bioptigen, Inc.Inventors: Christopher Saxer, Al-Hafeez Z. Dhalla, Robert H. Hart, Eric L. Buckland
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Patent number: 10401589Abstract: A lens driving device comprising: an autofocus driving unit in which an autofocus movable part is elastically supported by an autofocus fixed part due to an elastic support part; and an auxiliary magnet which, in a reference position of the autofocus movable part, has a movement direction action force of zero relative to the autofocus movable part and which generates the movement direction action force in the opposite direction to a restoring force of the elastic support part when the autofocus movable part has moved.Type: GrantFiled: July 8, 2015Date of Patent: September 3, 2019Assignee: MITSUMI ELECTRIC CO., LTD.Inventor: Tomoyuki Murakami
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Patent number: 10401597Abstract: A projection optical system is constituted by, in order from the reduction side, a first optical system constituted by a plurality of lenses for forming an image displayed by image display elements as an intermediate image, and a second optical system constituted by a plurality of lenses for forming the intermediate image on a magnification side conjugate plane. Conditional Formula (1), being that 0.020<enP/TL2<0.160, is satisfied, wherein enP is the distance along the optical axis from the surface most toward the magnification side in the second optical system to the position of an entrance pupil in the case that the magnification side is a light entry side, and TL2 is the distance along the optical axis from the surface most toward the reduction side in the second optical system to the surface most toward the magnification side in the second optical system.Type: GrantFiled: February 2, 2016Date of Patent: September 3, 2019Assignee: FUJIFILM CorporationInventor: Masaru Amano
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Patent number: 10397455Abstract: An imaging lens includes first to sixth lens elements arranged from an object side to an image side in the given order. Through designs of surfaces of the lens elements and relevant optical parameters, a short system length of the imaging lens may be achieved while maintaining good optical performance.Type: GrantFiled: June 1, 2017Date of Patent: August 27, 2019Assignee: Genius Electronic Optical Co., Ltd.Inventors: Shih-Han Chen, Jia-Sin Jhang, Guan-Ning Huang
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Patent number: 10386614Abstract: An optical apparatus includes plural optical lens groups with a specified field of view and an optical sensor accommodated and fixed within a casing. After a light beam passes through any of the plural optical lens groups, its travelling direction is changed, and it is sensed by the optical sensor and converted into an image signal by the optical sensor. The optical apparatus has a single optical lens module of minimized volume and is able to implement different optical functions simultaneously. Consequently, the fabricating cost of the optical apparatus is reduced, the assembling process is simplified, and the number of components to be assembled is reduced.Type: GrantFiled: October 14, 2015Date of Patent: August 20, 2019Assignee: Everready Precision Ind. Corp.Inventors: Jyh-Long Chern, Chih-Ming Yen
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Patent number: 10365470Abstract: An endoscope including: an endoscope shaft having an outer tube and an inner tube rotatable relative to each other, the outer tube radially surrounding the inner tube; a first optical assembly disposed in a distal region of the endoscope shaft and being accommodated in and/or operated by the outer tube; a second optical assembly disposed in the distal region and being accommodated in the inner tube; an axial bearing arranged between the outer tube and the inner tube in a proximal region of the endoscope shaft wherein the axial bearing includes an outer ring associated with the outer tube and an inner ring associated with the inner tube; and a fixing device for the axial bearing, the fixing device including a first elastomer body provided for the outer ring of the axial bearing and/or a second elastomer body provided for the inner ring of the axial bearing.Type: GrantFiled: January 5, 2016Date of Patent: July 30, 2019Assignee: OLYMPUS WINTER & IBE GMBHInventors: Martin Wieters, Alrun Thuemen
