JPS6410117A - Displacement measuring instrument - Google Patents

Displacement measuring instrument

Info

Publication number
JPS6410117A
JPS6410117A JP16588487A JP16588487A JPS6410117A JP S6410117 A JPS6410117 A JP S6410117A JP 16588487 A JP16588487 A JP 16588487A JP 16588487 A JP16588487 A JP 16588487A JP S6410117 A JPS6410117 A JP S6410117A
Authority
JP
Japan
Prior art keywords
optical
photodetection
displacement
optical axis
image
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
JP16588487A
Other languages
Japanese (ja)
Inventor
Mikio Yamagata
Original Assignee
Ono Sokki 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 Ono Sokki Co Ltd filed Critical Ono Sokki Co Ltd
Priority to JP16588487A priority Critical patent/JPS6410117A/en
Publication of JPS6410117A publication Critical patent/JPS6410117A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To form an image whose magnification is constant irrelevantly to displacement by arranging the image formation surface of a two-dimensional image sensor in parallel to the optical axis of a projection optical system and setting the optical axis of a photodetection optical system at right angles to the optical axis of the projection optical system. CONSTITUTION:The photodetection optical system 3 and projection optical system 2 are arranged so that their optical axes cross each other at right angles. The image formation surface of the two-dimensional image sensor 4 is set in parallel to the optical axis of the projection optical system 2 and at the position where the photodetection optical system 3 covers the displacement states (a)-(c) of an object 5 of measurement within an about 45 deg. half view angle range. The power of a cylindrical lens 21 is so adjusted that the width of a light image formed on the two-dimensional image sensor 4 is wide enough to cover a specific number of picture elements on each picture element line. Consequently, the distance from the object of measurement to the photodetection optical system is constant in each displacing operation, so the magnification of the image is constant irrelevantly to the displacement.
JP16588487A 1987-07-02 1987-07-02 Displacement measuring instrument Pending JPS6410117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16588487A JPS6410117A (en) 1987-07-02 1987-07-02 Displacement measuring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16588487A JPS6410117A (en) 1987-07-02 1987-07-02 Displacement measuring instrument

Publications (1)

Publication Number Publication Date
JPS6410117A true JPS6410117A (en) 1989-01-13

Family

ID=15820808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16588487A Pending JPS6410117A (en) 1987-07-02 1987-07-02 Displacement measuring instrument

Country Status (1)

Country Link
JP (1) JPS6410117A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4130119A1 (en) * 1991-09-11 1993-03-25 Leuze Electronic Gmbh & Co Optical triangulation distance measurement device - light source, transmission lens, wide angle receiver lens and position sensitive light receiver

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5337457A (en) * 1976-09-18 1978-04-06 Iwatsu Electric Co Ltd Distance measuring device
JPS59164910A (en) * 1983-03-10 1984-09-18 Toshiba Corp Distance measuring apparatus
JPS61231409A (en) * 1985-04-05 1986-10-15 Nippon Kogaku Kk <Nikon> Optical position measuring apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5337457A (en) * 1976-09-18 1978-04-06 Iwatsu Electric Co Ltd Distance measuring device
JPS59164910A (en) * 1983-03-10 1984-09-18 Toshiba Corp Distance measuring apparatus
JPS61231409A (en) * 1985-04-05 1986-10-15 Nippon Kogaku Kk <Nikon> Optical position measuring apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4130119A1 (en) * 1991-09-11 1993-03-25 Leuze Electronic Gmbh & Co Optical triangulation distance measurement device - light source, transmission lens, wide angle receiver lens and position sensitive light receiver

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