1. Articles from akihiro horii

    1-8 of 8
    1. Optical imaging apparatus

      An optical imaging apparatus has an optical scanning probe configured to irradiate low-coherence light onto a subject and to perform photo-reception of light scattered at the subject, and an observation device adapted to construct a cross-section image of the subject based on information from the light received through the optical scanning probe. The optical scanning probe is detachably connected to the observation device.
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      Mentions: Olympus
    2. Optical scanning observation apparatus

      Before performing observation with an optical scanning probe using a low-coherence light source and the like, a shutter is inserted in a reference light side optical path to create a state wherein interference light does not occur, in which state a reference member is set to a focal position of a converging optical system such that the output of a light detector is maximal by moving the reference member by a driving device at an observation light optical path side of an optical scanning probe, following which the shutter is opened, and the position of a mirror at the reference ...
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      Mentions: Olympus
    3. Rapid depth scanning optical imaging device

      An optical imaging device includes a reference scanning unit offering a high signal-to-noise ratio and capable of scanning an object rapidly. An interference optical system can be realized inexpensively. In the optical imaging device, low coherent light passed through an optical coupler and another optical coupler, irradiated from an optical scanner probe, reflected from an observed point in a living tissue, returned to the optical coupler, propagated over a fourth SM optical fiber, and routed to another optical coupler shall be referred to as sample light. Light passed through an optical length variation optical system via the optical coupler and ...
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      Mentions: Olympus
    4. Rapid depth scanning optical imaging device

      An optical imaging device includes a reference scanning unit offering a high signal-to-noise ratio and capable of scanning an object rapidly. An interference optical system can be realized inexpensively. In the optical imaging device, low coherent light passed through an optical coupler and another optical coupler, irradiated from an optical scanner probe, reflected from an observed point in a living tissue, returned to the optical coupler, propagated over a fourth SM optical fiber, and routed to another optical coupler shall be referred to as sample light. Light passed through an optical length variation optical system via the optical coupler and ...
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      Mentions: Olympus
    5. Optical imaging device

      An Optical Coherence Tomography (OCT) device irradiates a biological tissue with low coherence light, obtains a high resolution tomogram of the inside of the tissue by low-coherent interference with scattered light from the tissue, and is provided with an optical probe which includes an optical fiber having a flexible and thin insertion part for introducing the low coherent light. When the optical probe is inserted into a blood vessel or a patient's body cavity, the OCT enables the doctor to observe a high resolution tomogram. In a optical probe, generally, a fluctuation of a birefringence occurs depending on a ...
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    6. Optical imaging device

      An Optical Coherence Tomography (OCT) device irradiates a biological tissue with low coherence light, obtains a high resolution tomogram of the inside of the tissue by low-coherent interference with scattered light from the tissue, and is provided with an optical probe which includes an optical fiber having a flexible and thin insertion part for introducing the low coherent light. When the optical probe is inserted into a blood vessel or a patient's body cavity, the OCT enables the doctor to observe a high resolution tomogram. In a optical probe, generally, a fluctuation of a birefringence occurs depending on a ...
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    7. Light scanning devices of a water-tight structure to be inserted into a body cavity to obtain optical information on inside of a biological tissue

      A light scanning device has a tip structure which includes a light scanning part connected to a light source, and which is insertable into a body cavity and is formed so as to be water-tight. A controlling part controls the light scan through the tip structure, and the tip structure and the controlling part are also connected to each other in a water-tight manner by a slender tube through which a plurality of electrical cables pass. An electric connector is fixed with the proximal end portion of the tube in a water-tight manner, and is electrically connectable so as to ...
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      Mentions: Olympus
    8. Optical imaging apparatus which radiates a low coherence light beam onto a test object, receives optical information from light scattered by the object, and constructs therefrom a cross-sectional image of the object

      A low coherence beam emitted by a low coherence light source is split into two portions. One portion is transmitted from the outward end of a first single mode fiber via a detachable connector to a beam scanning probe, and then to a biological tissue; and the other is transmitted from an optical coupler placed midway along the light path via a second single mode fiber to a light path modifier. The light path modifier includes a galvanometer mirror to modify the light path length in accordance with a scan range, and a uniaxial stage to adjust the light path ...
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      Mentions: Olympus
    1-8 of 8
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