JPS5266447A - Focus adjusting device in optical measuring apparatus - Google Patents

Focus adjusting device in optical measuring apparatus

Info

Publication number
JPS5266447A
JPS5266447A JP14163875A JP14163875A JPS5266447A JP S5266447 A JPS5266447 A JP S5266447A JP 14163875 A JP14163875 A JP 14163875A JP 14163875 A JP14163875 A JP 14163875A JP S5266447 A JPS5266447 A JP S5266447A
Authority
JP
Japan
Prior art keywords
adjusting device
measuring apparatus
optical measuring
focus adjusting
light
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
JP14163875A
Other languages
Japanese (ja)
Inventor
Kenji Horiki
Matsutaro Ichikawa
Eisaku Yasumatsu
Kunio Irisawa
Kazuya Tsukada
Fukuo Iwatani
Shinji Abe
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.)
JAPANESE NATIONAL RAILWAYS<JNR>
MAMIYA KOUKI KK
Hitachi Ltd
Japan National Railways
Mamiya Camera Co Ltd
Nippon Kokuyu Tetsudo
Hitachi High Tech Corp
Original Assignee
JAPANESE NATIONAL RAILWAYS<JNR>
MAMIYA KOUKI KK
Hitachi Ltd
Japan National Railways
Mamiya Camera Co Ltd
Nippon Kokuyu Tetsudo
Hitachi Electronics Engineering 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 JAPANESE NATIONAL RAILWAYS<JNR>, MAMIYA KOUKI KK, Hitachi Ltd, Japan National Railways, Mamiya Camera Co Ltd, Nippon Kokuyu Tetsudo, Hitachi Electronics Engineering Co Ltd filed Critical JAPANESE NATIONAL RAILWAYS<JNR>
Priority to JP14163875A priority Critical patent/JPS5266447A/en
Publication of JPS5266447A publication Critical patent/JPS5266447A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE: In an apparatus of measuring the width, etc. of strip form objects by projecting the light deflecting at a predetermined angle to a continuous strip form object travelling in its longitudinal direction and receiving the feedbaxk light therefrom, the adjustment of focus is performed by equidistantly moving a light source and light receiving element in the direction of optical axis.
COPYRIGHT: (C)1977,JPO&Japio
JP14163875A 1975-11-28 1975-11-28 Focus adjusting device in optical measuring apparatus Pending JPS5266447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14163875A JPS5266447A (en) 1975-11-28 1975-11-28 Focus adjusting device in optical measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14163875A JPS5266447A (en) 1975-11-28 1975-11-28 Focus adjusting device in optical measuring apparatus

Publications (1)

Publication Number Publication Date
JPS5266447A true JPS5266447A (en) 1977-06-01

Family

ID=15296688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14163875A Pending JPS5266447A (en) 1975-11-28 1975-11-28 Focus adjusting device in optical measuring apparatus

Country Status (1)

Country Link
JP (1) JPS5266447A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49131127A (en) * 1973-04-20 1974-12-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49131127A (en) * 1973-04-20 1974-12-16

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