Patents by Inventor Yasufumi Fukuma

Yasufumi Fukuma 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).

  • Publication number: 20070222946
    Abstract: Image forming part 220 forms a 2-dimensional image of the surface of the fundus oculi Ef (fundus oculi image) and a tomographic image of the fundus oculi Ef. The fundus oculi image 212a and the tomographic image Ga captured at the first examination time and the fundus oculi image 212b and the tomographic image Gb captured at the second examination time are stored in an image storage part 212. Position information generating part 214 generates the position information 213a indicating the position of the tomographic image Ga in the fundus oculi image 212a and the position information 213b indicating the position of the tomographic image Gb in the fundus oculi image 212b. The generated position information 213a and 213b are stored in information storage part 213. Image processing part 230 adjusts the position between the tomographic images Ga and Gb based on such position information 213a and 213b.
    Type: Application
    Filed: March 21, 2007
    Publication date: September 27, 2007
    Inventors: Yasufumi Fukuma, Hiroyuki Aoki, Hisashi Tsukada, Tsutomu Kikawa
  • Publication number: 20070226076
    Abstract: A sale system, comprising using a measuring instrument which measures lenses in eyeglasses with frames and which is supplied to the home of a customer; and making and providing lenses based on data measured by the measuring instrument. In an embodiment of the invention, the data measured by the measuring instrument includes image data that is analyzed to compute data necessary to make lenses, and based on the newly computed data, lenses in eyeglasses with frames are made and supplied to the customer. In another embodiment, the system comprises sending image data produced by the measuring instrument and photographed by a digital camera owned by a customer to business people; analyzing the image data by the business people, to compute data necessary to make lenses in eyeglasses with a frame; making lenses in eyeglasses with the frame based on the newly computed data; and providing the lenses to the customer.
    Type: Application
    Filed: May 22, 2007
    Publication date: September 27, 2007
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Yasufumi Fukuma, Narumi Machida, Takeyuki Kato
  • Publication number: 20070222945
    Abstract: A fundus observation device is provided capable of capturing both images of the surface of the fundus oculi and tomographic images of the fundus oculi, and capable of preventing alignment indicators from being reflected in the image of the fundus oculi. Image forming part 220 operates to form surface images based on results of detecting the reflection light by the fundus oculi Ef of the illumination light obtained from a fundus camera unit 1A, and operates to form tomographic images based on results of detecting interference light LC by the OCT unit 150. The fundus camera unit comprises alignment optical systems 110A and 190A, which project an alignment indicator. Detection timing controlling part 210B controls a fundus camera unit 1A and makes it detect the illumination light substantially simultaneously with detection of the interference light.
    Type: Application
    Filed: March 21, 2007
    Publication date: September 27, 2007
    Inventors: Hisashi Tsukada, Hiroaki Okada, Yutaka Nishio, Yasufumi Fukuma
  • Patent number: 7274806
    Abstract: A service system for selecting personal goods to wear or carry, comprising a memory unit configured to memorize information on personal goods associated with types of each of decomposed body components with respect to a number of customers; an extracting unit configured to extract a given body component from a picture of a given customer; a selecting unit configured to select information on a piece of given personal goods memorized in the memory unit on the basis of the extracted result of the extracting unit; and a showing unit configured to show the selected piece of the personal goods to the given customer. Also disclosed is a selecting service system comprising a memory unit configured to memorize information on personal goods to wear or carry associated with body characteristics information of a number of customers. A program product for such a selecting service for personal goods to wear or carry is also disclosed.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: September 25, 2007
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Yasufumi Fukuma, Takeyuki Kato, Narumi Machida
  • Patent number: 7268885
    Abstract: An optical image measuring apparatus capable of effectively obtaining a direct current component of a heterodyne signal which is composed of background light of interference light is provided.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: September 11, 2007
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Kinpui Chan, Masahiro Akiba, Yasufumi Fukuma, Hiroyuki Otsuka, Hisashi Tsukada
  • Patent number: 7258442
    Abstract: An eye fundus photographing system, wherein a three-dimensional moving picture is photographed and displayed in eye fundus of infrared fluorescent photographing.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: August 21, 2007
    Inventors: Toru Noda, Yoshio Okazaki, Hidetaka Aeba, Yasufumi Fukuma
  • Publication number: 20070188704
    Abstract: Technology is provided, capable of easily acquiring high precision tomographic images of the desired observation site of the fundus oculi. A fundus observation device 1 is provided, comprising: an interferometer that generates interference light LC from a reference light LR via a reference mirror 174 and a signal light LS that reaches the fundus oculi Ef after low-coherence light L0 is split into that signal light LS and reference light LR; a CCD 184 that detects interference light LC; an image forming part 220 that forms image data G of a tomographic image based on detection results of the CCD 184; a display part 240A; an operation part 240B for specifying an observation mode (observation site); and a reference mirror drive mechanism 243. The image data G of a tomographic image includes image data of a normal image G (Re) and an inverse image G (Im).
    Type: Application
    Filed: February 16, 2007
    Publication date: August 16, 2007
    Inventors: Yasufumi Fukuma, Hisashi Tsukada, Tsutomu Kikawa
  • Patent number: 7248371
    Abstract: Provided is an optical image measuring apparatus capable of easily changing a scanning interval of an object to be measured in a depth direction with high precision.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: July 24, 2007
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Kinpui Chan, Masahiro Akiba, Yasufumi Fukuma, Hiroyuki Otsuka, Hisashi Tsukada
  • Patent number: 7245383
    Abstract: To provide an optical image measuring apparatus capable of calculating an intensity of a direct current component composed of background light based on a result obtained by detection of interference light and obtaining a signal intensity of the interference light using the calculated intensity. The apparatus includes: an optical interference system to divide a light beam into signal light and reference light, and the signal light propagating through an object to be measured and the reference light are superimposed to produce interference light; beam splitters for dividing it into three interference light beams; shutters to perform sampling; photo detectors for detecting the sampled interference light beams and converting them into electrical signals; and a signal processing portion for calculating the signal intensity of the interference light and the spatial phase distribution thereof based on the electrical signals.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: July 17, 2007
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Kinpui Chan, Masahiro Akiba, Yasufumi Fukuma, Hiroyuki Otsuka, Hisashi Tsukada
  • Patent number: 7244025
    Abstract: An eye's optical characteristics measuring system, comprising a first target projection optical system for projecting a target image on a fundus of an eye under test, a first photodetecting means for receiving the target image reflected from the fundus of the eye under test from the first target image projecting optical system, an ocular refractive power measuring unit for measuring ocular refractive power of the eye under test based on photodetection result from the first photodetecting means, a second target projecting means for projecting a spot-like target image to the fundus of the eye under test, a second photodetecting means for receiving the target image reflected from the fundus of the eye under test, and an eye's optical characteristics measuring unit for measuring ocular refractive power based on two or more images acquired at a predetermined refractive degree pitch before and after centering the refractive degree of the eye under test obtained by the second photodetecting means.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: July 17, 2007
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Kouji Nishio, Yasufumi Fukuma, Katsuhiko Kobayashi
  • Publication number: 20070159595
    Abstract: A fundus observation device which can simultaneously capture both surface images and tomographic images of the fundus oculi is provided. The fundus observation device 1 has a fundus camera unit 1A, an OCT unit 150, and an arithmetic and control unit 200. The fundus camera unit 1A has an illuminating optical system 100 and an imaging optical system 120. The arithmetic and control unit 200 forms the surface image of fundus oculi Ef based on signals from fundus camera unit 1A. The OCT unit 150 divides low coherence light LO into the signal light LS and the reference light LR, and detects the interference light LC that can be obtained from the signal light LS passing through fundus oculi Ef and the reference light LR passing through reference mirror 174. The arithmetic and control unit 200 forms tomographic images of fundus oculi Ef based on these detecting results.
    Type: Application
    Filed: January 10, 2007
    Publication date: July 12, 2007
    Inventors: Yasufumi Fukuma, Hiroyuki Otsuka, Kazuhiko Yumikake
  • Publication number: 20070159596
    Abstract: Highly reliable technology is provided with the capable of forming three-dimensional images of fundus oculi. The image forming part 220 of a computational control unit 200 forms images of the surface of fundus oculi Ef based on results of detecting fundus oculi catoptric light of light illuminated by a fundus camera unit 1A, in addition to forming tomographic images of the fundus oculi Ef based on results of detecting interference light LC from the OCT unit 150. The controlling part 210 synchronizes the timing of detecting fundus oculi catoptric light of light illuminated by the fundus camera unit 1A with the timing of detecting interference light LC from the OCT unit 150. The correction processing part 240 corrects the image positions of the tomographic images based on results of detecting interference light LC from the OCT unit 150 on the basis of two-dimensional images based on the results of detecting fundus oculi catoptric light of light illuminated from the fundus camera unit 1A.
    Type: Application
    Filed: January 10, 2007
    Publication date: July 12, 2007
    Inventors: Yasufumi FUKUMA, Hisashi Tsukada, Tsutomu Kikawa
  • Publication number: 20070159597
    Abstract: The invention provides an optical image-measuring device that avoids long examination time and reduces some troublesome tasks. A fundus observation device 1 (optical image-measuring device) splits light that is output from a low-coherence light source 160 into a signal light LS directed toward the fundus oculi Ef and a reference light LR directed toward a reference mirror 174, and detects interference light LC that is generated by superimposing the signal light LS passing through the fundus oculi Ef and the reference light LR passing through the reference mirror 174 using a spectrometer 180 to form tomographic images of the fundus oculi Ef. Furthermore, the device comprises a reference mirror drive mechanism 243 shifting the reference mirror 174 toward the optical path direction of the reference light LR and a information storage part 225 storing the reference mirror 174 position information based on previous tomographic images.
    Type: Application
    Filed: January 10, 2007
    Publication date: July 12, 2007
    Inventors: Yasufumi Fukuma, Hisashi Tsukada, Tsutomu Kikawa
  • Patent number: 7241982
    Abstract: Provided is an optical image transmitting system capable of producing signal light including plural image information and emitting the signal light, and in addition, receiving the signal light and selectively extracting target image information. An optical image transmitting system of the present invention includes an optical image transmitting apparatus (100) for producing plural optical image information beams (S1 to Sn) representing plural optical image information and including light beams of different frequencies, superimposing the plural optical image information beams (S1 to Sn) into signal light (S) and emitting the signal light (S) through free space or an optical waveguide such as an image fiber, and an optical image receiving apparatus (200) for receiving the emitted signal light (S) and selectively detecting the optical image information beams (S1 to Sn) based on the frequency difference.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: July 10, 2007
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Kinpui Chan, Masahiro Akiba, Yasufumi Fukuma, Hiroyuki Otsuka, Hisashi Tsukada
  • Publication number: 20070070295
    Abstract: To provide a technology that makes it easy to capture a positional relation of a 2-dimensional image of the surface of a fundus oculi and a tomographic image of the fundus oculi. The fundus observation device 1 is provided with a fundus camera unit 1A for forming a 2-dimensional image of the surface of a fundus oculi Ef of an eye to be examined, an OCT unit 150 for forming a tomographic image of the fundus oculi Ef, a scanning unit 141 as well as an image processing part 220, a display 207, and a controlling part 210 of a computer 200 for displaying the 2-dimensional image formed by the fundus camera unit 1A and a tomographic image formed by the OCT unit, etc. in parallel on the display 207, and also for displaying the cross-sectional position information (attention line L, attention region P) indicating the cross-sectional position of the tomographic image on the surface of the fundus oculi Ef, so as to be overlapped with the 2-dimensional image.
    Type: Application
    Filed: September 15, 2006
    Publication date: March 29, 2007
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Hisashi Tsukada, Koki Harumoto, Hiroyuki Aoki, Tsutomu Kikawa, Yasufumi Fukuma
  • Patent number: 7159984
    Abstract: Disclosed is a subjective optometric apparatus in which the earpiece members and the nose pad member for attaching the main body of the device to the subject can be easily adjusted without involving any effort. The subjective optometric apparatus has a horizontal frame and an inner tube inserted into the horizontal frame, with a support bar for supporting a nose pad member being passed through the horizontal frame and the inner tube. In a state in which the inner tube is being biased by a spring, a rubber member provided in a through-hole of the inner tube abuts the peripheral surface of the support bar to lock the support bar, thereby bringing the nose pad member into a locked state. Further, when a push-button is pushed in against the biasing force of the spring, the inner tube is displaced and the rubber member is detached from the peripheral surface of the support bar, with the result that the nose pad member is released from the locked state and becomes capable of being displaced.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: January 9, 2007
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Yasufumi Fukuma, Yukihiro Noda, Yasuo Kato
  • Patent number: 7152976
    Abstract: An apparatus for simulating the processing of eyeglass lenses where an operation control means displays a chamfering contour of an end portion of the edge of the eyeglass lens on a display means, and the operation control means is set to be capable of specifying a chamfering location of the chamfering contour. The apparatus can be utilized in connection with an eyeglass frame selecting system in which the eyeglass lens picture can be synthesized with the eyeglass frame image and the customer's facial image so that the effect for the eyeglass lens based on the lens prescription value of the customer can be known, is provided.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: December 26, 2006
    Assignee: Kabushiki Kaisha Topcon
    Inventors: Yasufumi Fukuma, Takeyuki Kato
  • Publication number: 20060256286
    Abstract: An eye's optical characteristics measuring system, comprising a first target projection optical system for projecting a target image on a fundus of an eye under test, a first photodetecting means for receiving the target image reflected from the fundus of the eye under test from the first target image projecting optical system, an ocular refractive power measuring unit for measuring ocular refractive power of the eye under test based on photodetection result from the first photodetecting means, a second target projecting means for projecting a spot-like target image to the fundus of the eye under test, a second photodetecting means for receiving the target image reflected from the fundus of the eye under test, and an eye's optical characteristics measuring unit for measuring ocular refractive power based on two or more images acquired at a predetermined refractive degree pitch before and after centering the refractive degree of the eye under test obtained by the second photodetecting means.
    Type: Application
    Filed: April 12, 2006
    Publication date: November 16, 2006
    Inventors: Kouji Nishio, Yasufumi Fukuma, Katsuhiko Kobayashi
  • Patent number: 7088439
    Abstract: A lens meter having a measurement optical system including a light-emitting optical system, emitting a measurement luminous flux to an eyeglass lens, and a light-receiving optical system having a light-receiving element, receiving the measurement luminous flux passing through the eyeglass lens, an eyeglass holding device between the light-emitting and light-receiving systems, and an arithmetic control circuit computing characteristics of the lens based on receiving element output. The holding device includes a lens receiver supporting the lens, and an eyeglass sandwiching unit, which sandwiches the eyeglasses. The lens receiver is freely movable between the measurement optical path of the measurement optical system and a withdrawal position outside the path, and is moved in the withdrawal position after the eyeglasses have been sandwiched by the sandwiching unit.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: August 8, 2006
    Inventors: Yasufumi Fukuma, Takeyuki Kato, Eiichi Yanagi
  • Publication number: 20060164598
    Abstract: A fundus examination apparatus includes an illumination optical system (20), which illuminates a fundus by fundus illumination light, an imaging optical system (21), which photographs a fundus image based on a polarization property of reflected illumination light, and a picture signal processing device, which processes a signal output from the imaging optical system; and the imaging optical system includes a phase plate array (42) that a plurality of unit constitutional plates (U1) is arranged in a matrix in a plane; each of the unit constitutional plates comprising four or more micro phase plates (44a-44d), a polarizer (43), which polarizes the reflected illumination light passing through the phase plate array (42) into a predetermined polarization direction, and an image pickup device (5a) that a plurality of constitutional units (U2) is arranged in a matrix in a plane; each of the constitutional units comprising four or more pixels (Ga-Gd).
    Type: Application
    Filed: January 24, 2006
    Publication date: July 27, 2006
    Applicant: KABUSHIKI KAISHA TOPCON
    Inventors: Hisao Kikuta, Kazuhiko Ohnuma, Yasufumi Fukuma, Takashi Shioiri, Hidetaka Aeba