Patents by Inventor Yoshio Okazaki
Yoshio Okazaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9994045Abstract: Disclosed are a light irradiation apparatus that prevents or suppresses projection of light on adjoining other portions and can be miniaturized overall, and a photocurable material treatment apparatus that includes this light irradiation apparatus. The light irradiation apparatus includes: a light source having a plurality of light emitting elements arranged in the x direction; and an elongated cylindrical lens extending in the x direction along the light source unit. A light source reference plane that includes a center of a light emission surface of each light emitting element is located on a plane separated in the y direction from a lens reference plane that includes a center axis of the cylindrical lens.Type: GrantFiled: July 30, 2015Date of Patent: June 12, 2018Assignee: Ushio Denki Kabushiki KaishaInventors: Takumi Sato, Koji Enomoto, Yoshihiro Kanahashi, Yoshihisa Yokokawa, Yoshio Okazaki, Norihiro Sengoku
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Publication number: 20170217214Abstract: Disclosed are a light irradiation apparatus that prevents or suppresses projection of light on adjoining other portions and can be miniaturized overall, and a photocurable material treatment apparatus that includes this light irradiation apparatus. The light irradiation apparatus according to the present invention includes, with three mutually orthogonal directions as an x direction, a y direction and a z direction: a long light source unit in which a plurality of light emitting elements are disposed in a state of being arranged in the x direction along a plane extending in the x direction and the y direction; and a cylindrical lens that has an elongated shape extending in the x direction along the light source unit, a longitudinal peripheral surface of the cylindrical lens including a light reception surface for receiving light from the light source unit and a light-exiting surface for allowing the received light to exit therethrough.Type: ApplicationFiled: July 30, 2015Publication date: August 3, 2017Applicant: Ushio Denki Kabushiki KaishaInventors: Takumi SATO, Koji ENOMOTO, Yoshihiro KANAHASHI, Yoshihisa YOKOKAWA, Yoshio OKAZAKI, Norihiro SENGOKU
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Patent number: 8882275Abstract: In a light source device, in each division of an image frame, two or more of the color lights X, Y and Z (e.g., red, green and blue) can be projected simultaneously. Each of the color lights X, Y and Z is divided into two in terms of time so that synthesized light of one group of division color lights enters a first spatial modulation element. Synthesized light of another group of division color lights enters a second spatial modulation element, whereby gradation of each color light in each of the first and second spatial modulation elements is controlled.Type: GrantFiled: April 12, 2012Date of Patent: November 11, 2014Assignee: Ushio Denki Kabushiki KaishaInventors: Akihiko Sugitani, Kiyoyuki Kabuki, Yoshihiro Horikawa, Yoshio Okazaki
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Patent number: 8779654Abstract: The present invention provides a discharge lamp apparatus including a high pressure discharge lamp, a concave reflection mirror, and a laser light source. An electrical discharge space is within the high pressure discharge lamp. A pair of electrodes faces each other in the electrical discharge space. A concave reflection mirror surrounds the high pressure discharge lamp. A laser light source emits laser light of a red wavelength band, wherein the laser light passes through the electrical discharge space.Type: GrantFiled: January 31, 2012Date of Patent: July 15, 2014Assignee: Ushio Denki Kabushiki KaishaInventors: Ai Okazaki, Yoshio Okazaki, Takumi Sato
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Patent number: 8714777Abstract: An optical device includes a high pressure discharge lamp, a concave condensing mirror placed so as to surround the high pressure discharge lamp while an optical axis stays extended along a direction of an arc of the high pressure discharge lamp, and an aspherical lens that is placed forward the light exit direction of the concave condensing mirror and that is rotationally symmetrical with respect to the optical axis of the concave condensing mirror, in which a reflecting surface of the concave condensing mirror is configured so as to have a shape set in connection with the shape of a light incident surface and the shape of a light exit surface of the aspherical lens.Type: GrantFiled: March 23, 2012Date of Patent: May 6, 2014Assignee: Ushio Denki Kabushiki KaishaInventors: Mikio Shimizu, Yoshio Okazaki
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Patent number: 8668339Abstract: In a light source device, that obtains high light usage efficiency by projecting simultaneously two or more of three primary color lights X, Y and Z. Moreover, each color light X, Y and Z is divided into two in terms of time so that p-wave and s-wave linear polarization lights are formed, such that the synthesized light of the p-wave linear polarization lights enters a first spatial modulation element and the synthesized light of the s-wave linear polarization lights enters a second spatial modulation element to permit gradation control of each color light.Type: GrantFiled: April 12, 2012Date of Patent: March 11, 2014Assignee: Ushio Denki Kabushiki KaishaInventors: Kiyoyuki Kabuki, Akihiko Sugitani, Yoshihiro Horikawa, Yoshio Okazaki
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Publication number: 20120262675Abstract: In a light source device, that obtains high light usage efficiency by projecting simultaneously two or more of three primary color lights X, Y and Z. Moreover, each color light X, Y and Z is divided into two in terms of time so that p-wave and s-wave linear polarization lights are formed, such that the synthesized light of the p-wave linear polarization lights enters a first spatial modulation element and the synthesized light of the s-wave linear polarization lights enters a second spatial modulation element to permit gradation control of each color light.Type: ApplicationFiled: April 12, 2012Publication date: October 18, 2012Applicant: USHIO DENKI KABUSHIKI KAISHAInventors: Kiyoyuki Kabuki, Akihiko Sugitani, Yoshihiro Horikawa, Yoshio Okazaki
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Publication number: 20120262676Abstract: In a light source device, in each division of an image frame, two or more of the color lights X, Y and Z (e.g., red, green and blue) can be projected simultaneously. Each of the color lights X, Y and Z is divided into two in terms of time so that synthesized light of one group of division color lights enters a first spatial modulation element. Synthesized light of another group of division color lights enters a second spatial modulation element, whereby gradation of each color light in each of the first and second spatial modulation elements is controlled.Type: ApplicationFiled: April 12, 2012Publication date: October 18, 2012Applicant: Ushio Denki Kabushiki KaishaInventors: Akihiko Sugitani, Kiyoyuki Kabuki, Yoshihiro Horikawa, Yoshio Okazaki
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Publication number: 20120243238Abstract: An optical device includes a high pressure discharge lamp, a concave condensing mirror placed so as to surround the high pressure discharge lamp while an optical axis stays extended along a direction of an arc of the high pressure discharge lamp, and an aspherical lens that is placed forward the light exit direction of the concave condensing mirror and that is rotationally symmetrical with respect to the optical axis of the concave condensing mirror, in which a reflecting surface of the concave condensing mirror is configured so as to have a shape set in connection with the shape of a light incident surface and the shape of a light exit surface of the aspherical lens.Type: ApplicationFiled: March 23, 2012Publication date: September 27, 2012Applicant: USHIO DENKI KABUSHIKI KAISHAInventors: Mikio SHIMIZU, Yoshio OKAZAKI
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Publication number: 20120200216Abstract: A discharge lamp apparatus comprises a high pressure discharge lamp in which a pair of electrodes face each other in an electrical discharge space, a concave reflection mirror which surrounds the high pressure discharge lamp, and a laser light source that emits laser light of a red wavelength band. The laser light source is arranged so that the laser light may pass through an electrical discharge space of the high pressure discharge lamp.Type: ApplicationFiled: January 31, 2012Publication date: August 9, 2012Applicant: USHIO DENKI KABUSHIKI KAISHAInventors: Ai Okazaki, Yoshio Okazaki, Takumi Sato
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Patent number: 7492082Abstract: It is an object of the present invention to provide a light source apparatus capable of reducing the production cost and increasing productivity. A light source apparatus comprises an approximately spherical discharge container, sealing portions continuously formed from both ends of the discharge container respectively, and a concave reflection mirror disposed so as to surround the discharge lamp, wherein the concave reflection mirror has a spheroidal surface or paraboloid of revolution formed from a front opening edge thereof, a sealing portion receiving section is formed at a head section of the concave reflection mirror and has a flat inner bottom surface, in which an end of one of the sealing portions is received, and an end surface of an end portion of the one of the sealing portions and the inner bottom surface of the sealing portion receiving section are brought into contact.Type: GrantFiled: October 5, 2005Date of Patent: February 17, 2009Assignee: Ushio Denki Kabushiki KaishaInventors: Yukiharu Tagawa, Yoshio Okazaki
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Patent number: 7347591Abstract: A reflector according to the present invention can certainly reflect light emitted from a lamp in a desired direction without producing distortion in a reflection surface by specifying the distance between a projection portion and a back side end portion of the reflection surface of a reflector to be in the optimal range. The reflector, having a front side opening portion, a back side opening portion and a reflection surface, the reflector comprises a projection portion provided in an inner surface of the reflector, wherein, the projection portion is formed in an area at a 2.5 mm or more distance from a back side end portion of the reflection surface toward a back side.Type: GrantFiled: October 28, 2004Date of Patent: March 25, 2008Assignee: Ushio Denki Kabushiki KaishaInventor: Yoshio Okazaki
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Patent number: 7344246Abstract: An observation apparatus is provided. An apex angle of a contact prism is inputted by operating an apex angle setting knob of a control panel. A fining angle of the contact prism is inputted by operating a fitting angle setting knob. A control unit determines the amount of correction for astigmatism of a left observation optical system and the amount of correction for astigmatism of a right observation optical system based on a recognized observation magnification and the inputted apex angle. An axial angle for the astigmatism of the left observation optical system and an axial angle for the astigmatism of the right observation optical system are determined based on the inputted fitting angle. Variable cross cylinder lens rotating drive units are controlled to rotate cylinder lenses of each of the right and left observation optical systems, thereby obtaining the determined axial angle and the determined amount of correction.Type: GrantFiled: June 8, 2004Date of Patent: March 18, 2008Assignee: Kabushiki Kaisha TopconInventors: Toru Noda, Kazuhiko Onuma, Yasufumi Fukuma, Koji Nishio, Hidetaka Aeba, Yoshio Okazaki, Masaru Sato, Yasuo Kato
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Patent number: 7258442Abstract: An eye fundus photographing system, wherein a three-dimensional moving picture is photographed and displayed in eye fundus of infrared fluorescent photographing.Type: GrantFiled: June 17, 2005Date of Patent: August 21, 2007Inventors: Toru Noda, Yoshio Okazaki, Hidetaka Aeba, Yasufumi Fukuma
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Publication number: 20060139572Abstract: An eye fundus photographing system, wherein a three-dimensional moving picture is photographed and displayed in eye fundus of infrared fluorescent photographing.Type: ApplicationFiled: June 17, 2005Publication date: June 29, 2006Applicant: KABUSHIKI KAISHA TOPCONInventors: Toru Noda, Yoshio Okazaki, Hidetaka Aeba, Yasufumi Fukuma
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Publication number: 20060071583Abstract: It is an object of the present invention to provide a light source apparatus capable of reducing the production cost and increasing productivity. A light source apparatus comprises an approximately spherical discharge container, sealing portions continuously formed from both ends of the discharge container respectively, and a concave reflection mirror disposed so as to surround the discharge lamp, wherein the concave reflection mirror has a spheroidal surface or paraboloid of revolution formed from a front opening edge thereof, a sealing portion receiving section is formed at a head section of the concave reflection mirror and has a flat inner bottom surface, in which an end of one of the sealing portions is received, and an end surface of an end portion of the one of the sealing portions and the inner bottom surface of the sealing portion receiving section are brought into contact.Type: ApplicationFiled: October 5, 2005Publication date: April 6, 2006Inventors: Yukiharu Tagawa, Yoshio Okazaki
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Publication number: 20050094406Abstract: A reflector according to the present invention can certainly reflect light emitted from a lamp in a desired direction without producing distortion in a reflection surface by specifying the distance between a projection portion and a back side end portion of the reflection surface of a reflector to be in the optimal range. The reflector, having a front side opening portion, a back side opening portion and a reflection surface, the reflector comprises a projection portion provided in an inner surface of the reflector, wherein, the projection portion is formed in an area at a 2.5 mm or more distance from a back side end portion of the reflection surface toward a back side.Type: ApplicationFiled: October 28, 2004Publication date: May 5, 2005Inventor: Yoshio Okazaki
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Publication number: 20050018134Abstract: An observation apparatus capable of preferably removing an astigmatism and chromatic aberration which occur in an observation image is provided. An apex angle of a contact prism is inputted by operating an apex angle setting knob of a control panel. A fitting angle of the contact prism is inputted by operating a fitting angle setting knob. A control unit determines the amount of correction for astigmatism of a left observation optical system and the amount of correction for astigmatism of a right observation optical system based on a recognized observation magnification and the inputted apex angle. An axial angle for the astigmatism of the left observation optical system and an axial angle for the astigmatism of the right observation optical system are determined based on the inputted fitting angle.Type: ApplicationFiled: June 8, 2004Publication date: January 27, 2005Applicant: KABUSHIKI KAISHA TOPCONInventors: Toru Noda, Kazuhiko Onuma, Yasufumi Fukuma, Koji Nishio, Hidetaka Aeba, Yoshio Okazaki, Masaru Sato, Yasuo Kato
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Patent number: 6570303Abstract: A lamp unit (3) for use with digital micromirror devices has a direct current short arc discharge lamp (1) in which at least 0.15 mg/mm3 of mercury is sealed.Type: GrantFiled: March 13, 2001Date of Patent: May 27, 2003Assignee: Ushiodenki Kabushiki KaishaInventor: Yoshio Okazaki
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Publication number: 20010040806Abstract: A lamp unit (3) for use with digital micromirror devices has a direct current short arc discharge lamp (1) in which at least 0.15 mg/mm3 of mercury is sealed.Type: ApplicationFiled: March 13, 2001Publication date: November 15, 2001Inventor: Yoshio Okazaki