| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Displacement information detection apparatus | JP7809095 | 1995-03-09 | JP3492012B2 | 2004-02-03 | 成樹 加藤; 誠 高宮 |
| 162 | Fundus blood flow meter | JP18200493 | 1993-06-28 | JP3363530B2 | 2003-01-08 | 久仁子 村岡; 信也 田中 |
| A retinal blood flow measuring apparatus has an irradiation system for spot-applying a laser beam for measurement onto a blood flow in the fundus of an eye to be examined, a light receiving device for receiving the reflected light of the laser beam for measurement from the fundus of the eye, the blood flow state of the fundus of the eye being measured from the light reception signal of the light receiving device, and a prescribing member for prescribing the position of the reflected light from the fundus of the eye in the direction of depth of the fundus of the eye. | ||||||
| 163 | Rear turbulence detecting system | JP2000262164 | 2000-08-31 | JP2002071807A | 2002-03-12 | OGA YASUNORI |
| PROBLEM TO BE SOLVED: To efficiently detect rear turbulence occurring from a rear of a main wing of an aircraft and affecting flights of other aircrafts by reducing blind spots of laser radars observing the rear turbulence. SOLUTION: This system is provided with first and second laser radars 1, 2 irradiating optical lasers from different positions, and a signal processor 5 generating rear turbulence information on the basis of reception signals from the first laser rader 1 and the second laser radar, specifying rear turbulence information for producing display data by synthesizing rear turbulence information in a range where observation areas of the two laser radars do not overlap and selecting rear turbulence information with larger comparison results in a range where the observation areas overlap, and on the basis of the specified rear turbulence information, producing the display data for displaying the rear turbulence information on a display device 7. COPYRIGHT: (C)2002,JPO | ||||||
| 164 | Optical flow sensor and method for measuring flow velocity of gas in predetermined flow direction of gas | JP2000394602 | 2000-12-26 | JP2001330486A | 2001-11-30 | TING-AI WANG |
| PROBLEM TO BE SOLVED: To determinate the velocity of flow of air or other fluid by a plurality of the detectors, which are provided so as to leave an interval in the direction parallel to the flow direction of air, of an optical flowmeter. SOLUTION: Laser beam is transmitted so as to traverse the flow of air to impinge against the detectors. Scintilation generated in the flow of air by the vortex and fine particles in air is detected by all of the detectors but, since the detectors are longitudinally separated in the flow direction of air, the scintilation is detected in slightly different timings. The output signals of the detectors are adjusted, amplified and converted to be brought to a digital form. Next, the analysis of temporal interrelation is performed on the signals digitalized in a digital signal processor. Next, time lag between the signals from the different detectors is electronically calculated. Next, the velocity of flow of air is judged by dividing the time lag detected with respect to the same scintilation by the respective detectors by the separation distance between the detectors. COPYRIGHT: (C)2001,JPO | ||||||
| 165 | Measurement method of fluid flow | JP9808892 | 1992-04-17 | JP3196087B2 | 2001-08-06 | 正道 一本松; 久男 大西; 光 平野; 雅司 西垣; 正秀 辻下 |
| 166 | Fluid flow velocity-measuring device of internal combustion engine | JP2000255286 | 2000-08-25 | JP2001116762A | 2001-04-27 | PARK SANG-BONG |
| PROBLEM TO BE SOLVED: To provide a fluid flow velocity-measuring device for measuring the flow velocity of a dead angle region inside a combustion chamber, especially around a valve sheet, using a cross beam LDV. SOLUTION: The measuring device consists of an LDV(laser Doppler velocimeter) having a probe 101 for discharging a pair of laser beams L1 and L2, and a beam-guiding means 210 for guiding the laser beams to the inside of a combustion chamber 202 while being fitted to the spark plug-fitting port of an engine. | ||||||
| 167 | Optical speedometer probe | JP16159397 | 1997-06-18 | JP2837401B2 | 1998-12-16 | FUREDERITSUKU GARUTEIE; ORIBIE BESON |
| 168 | Speed measuring method based on laser doppler principle | JP30782897 | 1997-10-21 | JPH10325874A | 1998-12-08 | DREWLING PETER |
| PROBLEM TO BE SOLVED: To enable speed measurement in simple structure and a low cost by using a kester prism as a beam splitter, and intersecting partial light from the beam splitter on a measuring object as a desired angle. SOLUTION: With regard to diode laser 10, coherent light 12 is substantially perpendicularly made incident on the surface 16 of a kester prism 14. The kester prism 14 has a splitter face 18 extending from an edge 20 to a prism face 22, which is perpendicular to the splitter face 18. Thereby, two pieces of partial light 24, 24 are formed, and intersect on the surface of a measuring object 28 which moves at a speed V after they pass two equal long optical paths. At that time, the intersection angle of the two piece of the partial light 24, 24 can be changed by adjusting the rotational position of the kester prism 14. A photosensitive photoreceptor 32 receives the reflection light of the object 28, and a processor 34 inputting a corresponding output signal finds the maximum value of a spectrum and calculates a speed value. The value is shown on a display 36. COPYRIGHT: (C)1998,JPO | ||||||
| 169 | Optical speedometer probe | JP16153797 | 1997-06-18 | JP2825480B2 | 1998-11-18 | FUREDERITSUKU GARUTEIE; ORIBIE BESON |
| 170 | Particle measuring device and its calibrating method | JP9749297 | 1997-04-15 | JPH10288578A | 1998-10-27 | HIRONAGA KATSUJI; TSUNEMI AKIRA; KAMIYAMA KOJI |
| PROBLEM TO BE SOLVED: To easily calibrate a particle measuring device using a laser Doppler current meter for measuring the shape of a particle. SOLUTION: A laser beam passing through the first cross region M1 which is a measurement region is again crossed by condensing lenses 21, 22 to form the second cross region M2. The cross region M2 is expanded by a magnifying lens 23. An optical fiber 24 is moved nearby from afar and is set at the position where no AC component is generated. The size of the incidence section of the optical fiber 24 can be equivalently matched with the interval of interference fringes, and the absolute value of the shape of a particle can be obtained. | ||||||
| 171 | Dynamic light scattering apparatus | JP50184688 | 1988-02-24 | JP2813358B2 | 1998-10-22 | ブラウン，ロバート・ジヨージ・ワトリング |
| 172 | Optical displacement information measuring instrument | JP9246996 | 1996-04-15 | JPH09281219A | 1997-10-31 | TAKAMIYA MAKOTO; KATO SHIGEKI |
| PROBLEM TO BE SOLVED: To make a working distance long with a small optical head and to take a high-precision measurement with large measurement depth by compos ing an afocal optical system of a 1st lens optical system and a 2nd lens optical system which has larger focal length than it. SOLUTION: The 1st lens 21 having focal length f 1 transmits and sends pieces 5a and 5b of luminous flux from a diffraction grating 20 to a cylindrical lens 22. The lens 22 converts them into pieces 5 e and 5 f of luminous flux which are converged on a measured surface along the Z axis and the 2nd lens group 25 with focal length f 2 refract them to irradiate the measured surface 7 with pieces 5 g and 5 h. Here, the focal length f 2 is set double as large as the focal length f 1 and the lenses 21 and lens group 25 are arranged at an interval of the sum of the focal length f 1 and focal length f 2. Consequently, the working distance can be made large. Further, the lens group 25 consists of a biconcave lens 23 and a biconvex lens 24 to make their aberrations cancel each other very much, and the aberrations of final projection light are nearly eliminated by the addition of the aberrations to those of the lens 21, thereby guaranteeing high precision even with large measurement depth. COPYRIGHT: (C)1997,JPO | ||||||
| 173 | Speed measuring device of moving light scattering body | JP11907388 | 1988-05-16 | JPH0726974B2 | 1995-03-29 | DEIITORIHI DOPUHAIDE; MIHIAERU FUABERU; GERUHARUTO RAIMU; GYUNTAA TAUKUSU |
| 174 | Method and apparatus for measuring gas flow | JP17965093 | 1993-07-21 | JPH0735763A | 1995-02-07 | MINOSHIMA MASAHIKO |
| PURPOSE:To measure gas flow without contact based on an intensity change of scattered light when a certain amount of fine particles having a certain grain size is continuously discharged from a tube as an air current tracer and a slope of belt-like laser light applied laterally straight to perpendicularity of the trace. CONSTITUTION:Belt-like laser light can be individually applied from two directions which are perpendicular to each other by a cylindrical lens 13 or the like, and a certain amount of fine particles 22 having a constant grain size is continuously discharged from vertically above a virtual intersection 20 of the light as an air current tracer. A laser light path 18 is provided there, and an entire system is horizontally rotated with the virtual intersection 20 as the center and stopped at a point where intensity of scattered light is the maximum. Then the light path is changed to a light path 19, a stage 17 is slid and stopped at a point where the intensity of scattered light is the maximum, and further the cylindrical lens 13 is rotated with an optical axis as the center, whereby with the belt-like laser light rotated with the optical axis as the center, the most particles 22 come against the belt-like laser light when the intensity of the scattered light is the maximum, so that a rotation angle of the cylindrical lens 13 can be determined as an angle of the gas flow. | ||||||
| 175 | JPH0559383B2 - | JP509289 | 1989-01-11 | JPH0559383B2 | 1993-08-30 | NAKAJIMA TAKESHI; IKEDA JUJI |
| 176 | JPH0345341B2 - | JP21536182 | 1982-12-08 | JPH0345341B2 | 1991-07-10 | FUIRITSUPU RUIZU ROJAAZU |
| 177 | JPH02502482A - | JP50184688 | 1988-02-24 | JPH02502482A | 1990-08-09 | |
| 178 | Optical measuring equipment for air data | JP9861789 | 1989-04-18 | JPH01301171A | 1989-12-05 | FUIRITSUPU RUIZU ROJIYAAZU |
| PURPOSE: To ensure an accurate and reliable measurement by irradiating an air sample at a position remote from an aircraft with a radiation, receiving the radiation scattered and returned from granular substances thereat and measuring variation in the intensity of the received radiation. CONSTITUTION: A laser beam 14 is projected from an optical transmitter installed in a supersonic aircraft 10 toward a sample region 12. Since the region 12 is defined by intersection of the beams 14 and remote from the closest surface 16 of the aircraft 10, it exists in an air flow part not disturbed by a supersonic shock wave 18. A set of linear independent radiation fronges is formed in the regions 12 and the radiation is converged to the region 12 so that fluorescence is emitted from a selected component of air, e.g. N 2. Fluorescence (air dencity information) returned from the region 12 is converged, along with the radiation (speed information) scattered from the region 12, onto an optical receiver 20. Output from the receiver 20 is processed by means of a data processor 22 and displayed on an instrument 24 and utilized by the avionics 26 of the aircraft 10. COPYRIGHT: (C)1989,JPO | ||||||
| 179 | JPH0126697B2 - | JP14890178 | 1978-12-01 | JPH0126697B2 | 1989-05-25 | OKAMOTO SHINSEIRO; NISHIMURA SHINICHI; YOKOKURA TAKASHI |
| PURPOSE:To make agreement two light flux to the measuring point easily, by freely inserting the transparent parallel plate in the optical path of laser light at least one between the focussed optical system and the measuring point. CONSTITUTION:The single laser light flux a from the laser oscillator 11 is sectioned into two light flux b1, b2 with the semi-transparent mirror prism 14, emitted to the eyeground 30 to be measured, and the scattered light C from the measuring point of the light flux b1, b2 is received at the photo detector 40 via the pin hole 37. On the other hand, the light from the illumination light source 11 illuminates the eyeground 30 via the pupilary surface 28 of inspected person, and the inspector 44 observes the measurement formed at the position conjugated to the pin hole 37 through the eyepiece lens 43. In this case, the eye lens 29 of body eye is optically ununiform media to cause error easily. But, adjusting independently two parallel plates 20-1 and 20-2, the light flux b1, b2 can surely be in agreement with one point in the eyeground 30 being the measuring point. | ||||||
| 180 | Speedmeter and speed processing system | JP1753588 | 1988-01-29 | JPS63252256A | 1988-10-19 | ARAN BUTEIE; JIYAN REFUEBURU |
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