JPS57187676A - Measuring device for distance - Google Patents

Measuring device for distance

Info

Publication number
JPS57187676A
JPS57187676A JP56072226A JP7222681A JPS57187676A JP S57187676 A JPS57187676 A JP S57187676A JP 56072226 A JP56072226 A JP 56072226A JP 7222681 A JP7222681 A JP 7222681A JP S57187676 A JPS57187676 A JP S57187676A
Authority
JP
Japan
Prior art keywords
distance
electromagnetic waves
measured
information
emitted
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
JP56072226A
Other languages
Japanese (ja)
Inventor
Itsuki Ban
Tadao Miyata
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.)
Sekoh Giken KK
Secoh Giken Co Ltd
Original Assignee
Sekoh Giken KK
Secoh Giken Co 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 Sekoh Giken KK, Secoh Giken Co Ltd filed Critical Sekoh Giken KK
Priority to JP56072226A priority Critical patent/JPS57187676A/en
Publication of JPS57187676A publication Critical patent/JPS57187676A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only

Abstract

PURPOSE:To attain a device calculating a distance or an information on distance from an object the distance from which is to be measured and which is located relatively near, as well as an apparatus to which the device is applied, by utilizing electromagnetic waves having wavelength outside a visible range. CONSTITUTION:Electromagnetic waves having wavelength outside a visible range are emitted from infrared LED2 and converged into beams by a lens 2a. The intensity of these electromagnetic waves is increased or decreased with time or retained in a steady state by an electric circuit 4. The emitted electromagnetic waves are reflected by an object the distance from which is to be measured, and are received by a photodiode 3. Reception outputs therefrom are integrated 5b sequentially after being amplified 5, integration outputs after a set time are given to an operation circuit 10, and thereby an information on distance from the object 1 is calculated.
JP56072226A 1981-05-15 1981-05-15 Measuring device for distance Pending JPS57187676A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56072226A JPS57187676A (en) 1981-05-15 1981-05-15 Measuring device for distance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56072226A JPS57187676A (en) 1981-05-15 1981-05-15 Measuring device for distance

Publications (1)

Publication Number Publication Date
JPS57187676A true JPS57187676A (en) 1982-11-18

Family

ID=13483129

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56072226A Pending JPS57187676A (en) 1981-05-15 1981-05-15 Measuring device for distance

Country Status (1)

Country Link
JP (1) JPS57187676A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6012527A (en) * 1983-07-04 1985-01-22 Secoh Giken Inc Infrared beam scanner
JPS6064283A (en) * 1983-09-19 1985-04-12 Asahi Optical Co Ltd Light emitting type distance measuring apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5749905A (en) * 1980-09-09 1982-03-24 Ricoh Co Ltd Distance measuring circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5749905A (en) * 1980-09-09 1982-03-24 Ricoh Co Ltd Distance measuring circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6012527A (en) * 1983-07-04 1985-01-22 Secoh Giken Inc Infrared beam scanner
JPS6064283A (en) * 1983-09-19 1985-04-12 Asahi Optical Co Ltd Light emitting type distance measuring apparatus

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