JPS5576967A - Range detector - Google Patents

Range detector

Info

Publication number
JPS5576967A
JPS5576967A JP14003479A JP14003479A JPS5576967A JP S5576967 A JPS5576967 A JP S5576967A JP 14003479 A JP14003479 A JP 14003479A JP 14003479 A JP14003479 A JP 14003479A JP S5576967 A JPS5576967 A JP S5576967A
Authority
JP
Japan
Prior art keywords
range
measured
time
light beam
signal
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.)
Granted
Application number
JP14003479A
Other languages
Japanese (ja)
Other versions
JPS5653683B2 (en
Inventor
Mitsuya Hosoe
Seiichi Matsumoto
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP14003479A priority Critical patent/JPS5576967A/en
Publication of JPS5576967A publication Critical patent/JPS5576967A/en
Publication of JPS5653683B2 publication Critical patent/JPS5653683B2/ja
Granted 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
    • G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Measurement Of Optical Distance (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE:To precisely measure the range by a range detector by detecting the range to be measured on the basis of timing component in the detected signal to thereby produce high signal to noise ratio at the detector. CONSTITUTION:The reflected light beam on a target to be measured is incident to the lens 7 in a receiving system disposed at predetermined distance from a light emitting system at an angle corresponding to the range to the target. The light beam coming from infinite distance may correctly pass a slit 13 at the moment when one plane of a prism 8 forms an angle of 45 deg. with respect to an optical axis 6 and is incident onto a photoelectric converter 11. At this time the light beam passed through a light guide 14 transmits a plane parallel with the prism 8 and is incident onto a standard signal generating photoelectric converter 17. The time difference between the time when the output is produced from the converter 11 and the time when the standard signal is generated depends upon the range to be measured. Since the range to be measured can be detected thus together with the timing component in the detected signal, it can obtain high signal to noise ratio to thereby detect the range precisely.
JP14003479A 1979-10-29 1979-10-29 Range detector Granted JPS5576967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14003479A JPS5576967A (en) 1979-10-29 1979-10-29 Range detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14003479A JPS5576967A (en) 1979-10-29 1979-10-29 Range detector

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2877272A Division JPS5539810B2 (en) 1972-03-22 1972-03-22

Publications (2)

Publication Number Publication Date
JPS5576967A true JPS5576967A (en) 1980-06-10
JPS5653683B2 JPS5653683B2 (en) 1981-12-21

Family

ID=15259411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14003479A Granted JPS5576967A (en) 1979-10-29 1979-10-29 Range detector

Country Status (1)

Country Link
JP (1) JPS5576967A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5997123A (en) * 1982-11-27 1984-06-04 Iiyama Koshina:Kk Focusing device of camera
JPS6291616U (en) * 1985-11-27 1987-06-11

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5997123A (en) * 1982-11-27 1984-06-04 Iiyama Koshina:Kk Focusing device of camera
JPS6291616U (en) * 1985-11-27 1987-06-11
JPH04331Y2 (en) * 1985-11-27 1992-01-08

Also Published As

Publication number Publication date
JPS5653683B2 (en) 1981-12-21

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