Patent application number | Description | Published |
20090073453 | ELASTICITY AND VISCOSITY MEASURING APPARATUS - Brillouin scattered light is used to measure the distribution of elasticity and viscosity in a measurement object without contact and in a noninvasive and simpler manner. Measuring light emitted from a light source is directed from a light probe onto a measurement object, and scattered light is received by the light probe. A control computer analyzes the light spectrum of scattered light received by the light probe, calculates at least one parameter selected from the center frequency and the linewidth of the elastic wave scattered components as viscoelastic information, matches the viscoelastic information with the position of a target area in the measurement object, and outputs image information. The position information of the target area in the measurement object is acquired by photographing light spots of guide light with a camera provided to the light probe. | 03-19-2009 |
20100331706 | OPTICAL ANALYZER - An optical analyzer performing analysis excellent in spatial resolution and in invasion depth is provided. The analyzer includes a diagnostic light source section including a seed light source which outputs seed light, and a silica optical fiber to which seed light is input and which generates diagnostic light having a HE11 mode field pattern utilizing a nonlinear optical phenomenon, an irradiation optical system converging the diagnostic light and irradiating a measurement subject with the diagnostic light, an acquisition optical system acquiring object light generated at the measurement subject, a spectrum measurement section receiving the object light and measuring a frequency spectrum of the object light, a storage section storing information of a frequency spectrum of a known substance, and an arithmetic section calculating a correspondence between the frequency spectrum of the object light and the frequency spectrum of the known substance, and analyzing the measurement subject based on the calculation result. | 12-30-2010 |
20110001959 | OPTICAL FIBRE CIRCUIT MONITORING SYSTEM AND MONITORING DEVICE INCLUDED IN THIS SYSTEM - Optical fiber lines of a PON system can be monitored with the remote fiber test system having a practical structure, comprising a branch-type optical fiber line constituting the PON system and test equipment connected to the branch-type optical fiber line on the central office side. The test equipment comprises a light source, an optical splitter, a detecting part, and a control unit. The light source outputs light having an optical coherence function of a comb shape that is formed as a result of the optical frequency being modulated by a modulation signal of period p. The optical splitter receives light output from the light source and splits the light into probe light and reference light. The detecting part detects interference light that occurs from mutual interference between the reference light and reflected light arising while the probe light propagates through the branch-type optical fiber line. And, upon detection of the interference light, the detecting part converts the interference light into an electrical signal. The control unit changes the period p, and on the basis of the period p and the electrical signal output from the detecting part, obtains reflectance distribution along the direction of the probe light propagation in the branch-type optical fiber line. | 01-06-2011 |
20110155709 | LASER PROCESSING APPARATUS AND PROCESSING METHOD EMPLOYED THEREIN - A laser processing apparatus | 06-30-2011 |
20140056023 | BROADBAND LIGHT SOURCE - A broadband light source that outputs broadband light with reduced peak power includes a pulsed light source, an optical fiber, a band-elimination filter, and a light echo unit. The optical fiber receives pulsed light output from the pulsed light source, expands the spectrum of the pulsed light by a nonlinear optical effect within the fiber to generate supercontinuum light, and outputs the supercontinuum light. The light echo unit has a plurality of optical paths between an input terminal and an output terminal thereof. At least one optical path in the plurality of optical paths serves as a loop optical path. The light echo unit receives, via the input terminal, the supercontinuum light output from the optical fiber and having traveled through the band-elimination filter, guides the supercontinuum light through the plurality of optical paths, and outputs the supercontinuum light guided by the plurality of optical paths from the output terminal. | 02-27-2014 |
20140071434 | OPTICAL TOMOGRAPHIC IMAGE ACQUISITION APPARATUS - The optical tomographic image acquisition apparatus is based on FD-OCT. A detection unit | 03-13-2014 |
20140158888 | OPTICAL PROBE AND OPTICAL MEASURING METHOD - An optical measurement method that can suppress variation in detection sensitivity even if an optical probe is bent, and an optical probe suitably used for the method are provided. An optical probe | 06-12-2014 |
20140212091 | OPTICAL PROBE - Provided is an optical probe that can perform low-noise precise OCT measurement even if an object with a high scattering property is measured. The optical probe | 07-31-2014 |