JPS55103485A - Method and device for detection of belt-type substance - Google Patents

Method and device for detection of belt-type substance

Info

Publication number
JPS55103485A
JPS55103485A JP1136479A JP1136479A JPS55103485A JP S55103485 A JPS55103485 A JP S55103485A JP 1136479 A JP1136479 A JP 1136479A JP 1136479 A JP1136479 A JP 1136479A JP S55103485 A JPS55103485 A JP S55103485A
Authority
JP
Japan
Prior art keywords
reflectors
light beam
reflected
belt
substance
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
JP1136479A
Other languages
Japanese (ja)
Inventor
Masaru Takeshita
Shosuke Yokoo
Yuichiro Ogawa
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.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
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 Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP1136479A priority Critical patent/JPS55103485A/en
Publication of JPS55103485A publication Critical patent/JPS55103485A/en
Pending legal-status Critical Current

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  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE: To ensure the accurate detection with a simple constitution by putting the light beam to the reflection material which is located as if it enclosed completely the belt-type substance crossing vertically and then detecting the light reflected several times by the reflection component.
CONSTITUTION: Belt-type substance 1 is put through aperture 3, and a pair of reflectors 4 and 5 plus 6 and 7 are provided to oppose to each other and as if they enclosed substantially aperture 3. And direction converting reflector 8 is located for the light beam between reflectors 5 and 7, and then light source 10 and light receiving unit 11 are locatd at the gaps between reflectors 5 and 6 plus between 4 and 7 respectively. The light beam radiated from source 10 is reflected repetitively between reflectors 4 and 5 and at the same time shifted gradually toward the right side to be put into reflector 8 and then reflected to reflector 6. Then the light beam is reflected repetitively between reflectors 6 and 7 and at the same time shifted gradually to unit 11. Now in case substance 1 exists within aperture 3, the light beam is cut off and thus not put into unit 11. Thus the presence or absence can be detected for substance 1.
COPYRIGHT: (C)1980,JPO&Japio
JP1136479A 1979-02-05 1979-02-05 Method and device for detection of belt-type substance Pending JPS55103485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1136479A JPS55103485A (en) 1979-02-05 1979-02-05 Method and device for detection of belt-type substance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1136479A JPS55103485A (en) 1979-02-05 1979-02-05 Method and device for detection of belt-type substance

Publications (1)

Publication Number Publication Date
JPS55103485A true JPS55103485A (en) 1980-08-07

Family

ID=11775964

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1136479A Pending JPS55103485A (en) 1979-02-05 1979-02-05 Method and device for detection of belt-type substance

Country Status (1)

Country Link
JP (1) JPS55103485A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61131681U (en) * 1985-02-04 1986-08-16

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5225187U (en) * 1975-08-08 1977-02-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5225187U (en) * 1975-08-08 1977-02-22

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61131681U (en) * 1985-02-04 1986-08-16

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