JPS5540942A - Range finder - Google Patents

Range finder

Info

Publication number
JPS5540942A
JPS5540942A JP11394778A JP11394778A JPS5540942A JP S5540942 A JPS5540942 A JP S5540942A JP 11394778 A JP11394778 A JP 11394778A JP 11394778 A JP11394778 A JP 11394778A JP S5540942 A JPS5540942 A JP S5540942A
Authority
JP
Japan
Prior art keywords
lens
light
emitted
spot
distance
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
JP11394778A
Other languages
Japanese (ja)
Inventor
Kanichi Isobe
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11394778A priority Critical patent/JPS5540942A/en
Publication of JPS5540942A publication Critical patent/JPS5540942A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Optical Distance (AREA)

Abstract

PURPOSE: To enable to make range finding for a given range with a simple constitution, by receiving the scattered light from the object emitted with light beam via the collective lens at the location apart from the beam light.
CONSTITUTION: When the measured substance 3 is emitted with the laser beam 2 from the light source 1, the photo spot 6 is formed on the object 3. The reflection scattered light from the object 3 by this spot 4 is collected at the collective lens 5 installed at a location apart from the straight line tying the measured object 3 formed by the beam 2 and the light source 1, and when the distance from the measured object is within a given range, it is provided within a plane formed with the beam 2 and lens 5 and it forms its image on the photo electric conversion element 6 providing a plurality of elements in parallel with the lens 5. Accordingly, the range finding such as distance between vehicles for collision prevention can be made with a simple constitution.
COPYRIGHT: (C)1980,JPO&Japio
JP11394778A 1978-09-14 1978-09-14 Range finder Pending JPS5540942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11394778A JPS5540942A (en) 1978-09-14 1978-09-14 Range finder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11394778A JPS5540942A (en) 1978-09-14 1978-09-14 Range finder

Publications (1)

Publication Number Publication Date
JPS5540942A true JPS5540942A (en) 1980-03-22

Family

ID=14625186

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11394778A Pending JPS5540942A (en) 1978-09-14 1978-09-14 Range finder

Country Status (1)

Country Link
JP (1) JPS5540942A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60107513A (en) * 1983-11-15 1985-06-13 Matsushita Electric Works Ltd Distance detector
JPS61114122A (en) * 1984-11-09 1986-05-31 Konishiroku Photo Ind Co Ltd Range measuring device
JPH01144809U (en) * 1988-03-30 1989-10-04

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60107513A (en) * 1983-11-15 1985-06-13 Matsushita Electric Works Ltd Distance detector
JPS61114122A (en) * 1984-11-09 1986-05-31 Konishiroku Photo Ind Co Ltd Range measuring device
JPH01144809U (en) * 1988-03-30 1989-10-04

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