JPS5773614A - Azimuth recognition mechanism of front observation device - Google Patents

Azimuth recognition mechanism of front observation device

Info

Publication number
JPS5773614A
JPS5773614A JP14929280A JP14929280A JPS5773614A JP S5773614 A JPS5773614 A JP S5773614A JP 14929280 A JP14929280 A JP 14929280A JP 14929280 A JP14929280 A JP 14929280A JP S5773614 A JPS5773614 A JP S5773614A
Authority
JP
Japan
Prior art keywords
image pickup
azimuth
transmission line
terminal surface
lens system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14929280A
Other languages
Japanese (ja)
Inventor
Kenichi Yoshida
Kozo Ono
Koichi Tsuno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP14929280A priority Critical patent/JPS5773614A/en
Priority to AT81304533T priority patent/ATE11344T1/en
Priority to DE8181304533T priority patent/DE3168344D1/en
Priority to EP19810304533 priority patent/EP0050922B1/en
Publication of JPS5773614A publication Critical patent/JPS5773614A/en
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00163—Optical arrangements
    • A61B1/00174—Optical arrangements characterised by the viewing angles
    • A61B1/00183—Optical arrangements characterised by the viewing angles for variable viewing angles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/02—Magnetic compasses
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Optics & Photonics (AREA)
  • Biophysics (AREA)
  • Radiology & Medical Imaging (AREA)
  • General Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

PURPOSE:To detect an azimuth at the sea bottom and under the ground by providing a magnetic needle, oscillating in a plane parallel to an incidence terminal surface, in the visual field of an image pickup optical system provided to the incidence terminal surface of a picture transmission line, and observing a body to be measured at the same time. CONSTITUTION:To the incidence terminal surface 2a of the picture transmission line 2 of a front observation device, an image pickup adapter 3 having an incorporated image pickup lens system 5 is fitted. A magnetic needle 6 is so provided that it oscillates in a plane parallel to the end surface if the adapter 3 and in the visual field of the image pickup lens system 5. the magnetic needle 6 is installed in a transparent, watertight case 7, which is provided with an azimuth scale 10. In addition to the image pickup lens system 5, it is recommended that an imaging lens is provided and the magnetic needled between both the lenses. Consequenctly, for long- distance observation at the bottom of the sea and under the ground, an azimuth is recongnized correctedly even if a picture transmission line consisting of, for example, optical fibers is twisted.
JP14929280A 1980-10-27 1980-10-27 Azimuth recognition mechanism of front observation device Pending JPS5773614A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP14929280A JPS5773614A (en) 1980-10-27 1980-10-27 Azimuth recognition mechanism of front observation device
AT81304533T ATE11344T1 (en) 1980-10-27 1981-09-30 OBSERVATION SYSTEM FOR THE INVESTIGATION OF SMALL OPENINGS.
DE8181304533T DE3168344D1 (en) 1980-10-27 1981-09-30 Observation system for inspecting small diameter holes
EP19810304533 EP0050922B1 (en) 1980-10-27 1981-09-30 Observation system for inspecting small diameter holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14929280A JPS5773614A (en) 1980-10-27 1980-10-27 Azimuth recognition mechanism of front observation device

Publications (1)

Publication Number Publication Date
JPS5773614A true JPS5773614A (en) 1982-05-08

Family

ID=15471984

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14929280A Pending JPS5773614A (en) 1980-10-27 1980-10-27 Azimuth recognition mechanism of front observation device

Country Status (1)

Country Link
JP (1) JPS5773614A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112714209A (en) * 2021-01-14 2021-04-27 维沃移动通信有限公司 Electronic device, control method and control device thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112714209A (en) * 2021-01-14 2021-04-27 维沃移动通信有限公司 Electronic device, control method and control device thereof

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