DIRECTION MEASURING INSTRUMENT
PURPOSE:To easily and accurately detect the incidence direction of light, by one photodetector by providing a cylindrical light spot position detector which has light transmissivity and a rod type omnidirection photodetector which is concentric with the detector. CONSTITUTION:The measuring instrumen...
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| creator | HOSOI MITSUO IMAIZUMI HISAAKI NISHI YOKICHI HIROOKA MASATAKE SUZUKI TORU TORIHATA SHIGENORI MATSUDA TOMOO |
| description | PURPOSE:To easily and accurately detect the incidence direction of light, by one photodetector by providing a cylindrical light spot position detector which has light transmissivity and a rod type omnidirection photodetector which is concentric with the detector. CONSTITUTION:The measuring instrument consists of the cylindrical light spot position detector 1 which has light transmissivity and the thin rod type omnidirectional photodetector 2 which is concentric with the detector 1. When a light beam L is incident on the photodetector 2 after being transmitted through the detector 1, a light generating current is led out of a current collecting electrode 5. Then when the light beam I from the light projecting device 6 which swivels is incident on the photodetector 2, the segment which connects the center axis of the cylinder and the incidence position P detected by the detector 1 indicates the direction of the device 6. Therefore, when the light beam L is sensed by the photodetector 2, an azimuth psi is found by arithmetic according to a specific equation on the basis of respective currents outputted by the detector 1. |
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CONSTITUTION:The measuring instrument consists of the cylindrical light spot position detector 1 which has light transmissivity and the thin rod type omnidirectional photodetector 2 which is concentric with the detector 1. When a light beam L is incident on the photodetector 2 after being transmitted through the detector 1, a light generating current is led out of a current collecting electrode 5. Then when the light beam I from the light projecting device 6 which swivels is incident on the photodetector 2, the segment which connects the center axis of the cylinder and the incidence position P detected by the detector 1 indicates the direction of the device 6. Therefore, when the light beam L is sensed by the photodetector 2, an azimuth psi is found by arithmetic according to a specific equation on the basis of respective currents outputted by the detector 1.</description><language>eng</language><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; COLORIMETRY ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; GYROSCOPIC INSTRUMENTS ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT ; MEASURING ; MEASURING DISTANCES, LEVELS OR BEARINGS ; NAVIGATION ; PHOTOGRAMMETRY OR VIDEOGRAMMETRY ; PHYSICS ; RADIATION PYROMETRY ; RADIO DIRECTION-FINDING ; RADIO NAVIGATION ; SURVEYING ; TESTING</subject><creationdate>1987</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19870414&DB=EPODOC&CC=JP&NR=S6280510A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19870414&DB=EPODOC&CC=JP&NR=S6280510A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>HOSOI MITSUO</creatorcontrib><creatorcontrib>IMAIZUMI HISAAKI</creatorcontrib><creatorcontrib>NISHI YOKICHI</creatorcontrib><creatorcontrib>HIROOKA MASATAKE</creatorcontrib><creatorcontrib>SUZUKI TORU</creatorcontrib><creatorcontrib>TORIHATA SHIGENORI</creatorcontrib><creatorcontrib>MATSUDA TOMOO</creatorcontrib><title>DIRECTION MEASURING INSTRUMENT</title><description>PURPOSE:To easily and accurately detect the incidence direction of light, by one photodetector by providing a cylindrical light spot position detector which has light transmissivity and a rod type omnidirection photodetector which is concentric with the detector. 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CONSTITUTION:The measuring instrument consists of the cylindrical light spot position detector 1 which has light transmissivity and the thin rod type omnidirectional photodetector 2 which is concentric with the detector 1. When a light beam L is incident on the photodetector 2 after being transmitted through the detector 1, a light generating current is led out of a current collecting electrode 5. Then when the light beam I from the light projecting device 6 which swivels is incident on the photodetector 2, the segment which connects the center axis of the cylinder and the incidence position P detected by the detector 1 indicates the direction of the device 6. Therefore, when the light beam L is sensed by the photodetector 2, an azimuth psi is found by arithmetic according to a specific equation on the basis of respective currents outputted by the detector 1.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ANALOGOUS ARRANGEMENTS USING OTHER WAVES COLORIMETRY DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES GYROSCOPIC INSTRUMENTS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS RADIATION PYROMETRY RADIO DIRECTION-FINDING RADIO NAVIGATION SURVEYING TESTING |
| title | DIRECTION MEASURING INSTRUMENT |
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