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JPS56122910A - Range finder - Google Patents

Range finder

Info

Publication number
JPS56122910A
JPS56122910A JP2645280A JP2645280A JPS56122910A JP S56122910 A JPS56122910 A JP S56122910A JP 2645280 A JP2645280 A JP 2645280A JP 2645280 A JP2645280 A JP 2645280A JP S56122910 A JPS56122910 A JP S56122910A
Authority
JP
Japan
Prior art keywords
light
slit
emitted
range finder
incident
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
JP2645280A
Other languages
Japanese (ja)
Inventor
Osamu Kamiwaki
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP2645280A priority Critical patent/JPS56122910A/en
Publication of JPS56122910A publication Critical patent/JPS56122910A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/10—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Optical Distance (AREA)

Abstract

PURPOSE:To make the range finder adapted to mass production, by providing an unmovable reflection light leading-in device to simplify the optical light path. CONSTITUTION:The light emitted from light source 14 is reflected by material 15 to be measured with no great distance and is incident to part B of rectangular slit 16c of receiving-side part 16a of reflection light leading-in device 16 and is emitted from part D of rectangular slit 16d of emission-side part 16b and reaches photodetecting device 17. Similarly, the light reflected by material 18 to be measured at a long distance is incident to part C of slit 16c and is emitted from part D of slit 16d and reaches photodetecting device 17. Plural photodetectors are arranged on a line in photodetecting device 17, and the light is detected in positions corresponding to distances.
JP2645280A 1980-03-03 1980-03-03 Range finder Pending JPS56122910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2645280A JPS56122910A (en) 1980-03-03 1980-03-03 Range finder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2645280A JPS56122910A (en) 1980-03-03 1980-03-03 Range finder

Publications (1)

Publication Number Publication Date
JPS56122910A true JPS56122910A (en) 1981-09-26

Family

ID=12193886

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2645280A Pending JPS56122910A (en) 1980-03-03 1980-03-03 Range finder

Country Status (1)

Country Link
JP (1) JPS56122910A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017038549A (en) * 2015-08-19 2017-02-23 東洋農機株式会社 Liquid spraying height detection module, boom sprayer equipped with the same, and liquid spraying height detection module program

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017038549A (en) * 2015-08-19 2017-02-23 東洋農機株式会社 Liquid spraying height detection module, boom sprayer equipped with the same, and liquid spraying height detection module program

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