JPS5717802A - Center position detecting device for laser beam - Google Patents

Center position detecting device for laser beam

Info

Publication number
JPS5717802A
JPS5717802A JP9271980A JP9271980A JPS5717802A JP S5717802 A JPS5717802 A JP S5717802A JP 9271980 A JP9271980 A JP 9271980A JP 9271980 A JP9271980 A JP 9271980A JP S5717802 A JPS5717802 A JP S5717802A
Authority
JP
Japan
Prior art keywords
laser beam
thin lines
bridge
center position
resistors
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
JP9271980A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6219682B2 (de
Inventor
Toshiji Shirokura
Hiroyuki Sugawara
Koji Kuwabara
Hiroharu Sasaki
Yoshio Yoshioka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9271980A priority Critical patent/JPS5717802A/ja
Publication of JPS5717802A publication Critical patent/JPS5717802A/ja
Publication of JPS6219682B2 publication Critical patent/JPS6219682B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
    • G01B11/272—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes using photoelectric detection means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Laser Beam Processing (AREA)
JP9271980A 1980-07-09 1980-07-09 Center position detecting device for laser beam Granted JPS5717802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9271980A JPS5717802A (en) 1980-07-09 1980-07-09 Center position detecting device for laser beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9271980A JPS5717802A (en) 1980-07-09 1980-07-09 Center position detecting device for laser beam

Publications (2)

Publication Number Publication Date
JPS5717802A true JPS5717802A (en) 1982-01-29
JPS6219682B2 JPS6219682B2 (de) 1987-04-30

Family

ID=14062253

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9271980A Granted JPS5717802A (en) 1980-07-09 1980-07-09 Center position detecting device for laser beam

Country Status (1)

Country Link
JP (1) JPS5717802A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0259748U (de) * 1988-10-26 1990-05-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0259748U (de) * 1988-10-26 1990-05-01

Also Published As

Publication number Publication date
JPS6219682B2 (de) 1987-04-30

Similar Documents

Publication Publication Date Title
JPS5545593A (en) Precision working device and laser use
IT1072893B (it) Dispositivo amplificatore a reazio e distribuita particolarmente laser
BE864495A (fr) Stabilisateur d'helicoptere a incidence variable, et dispositif de manoeuvre a l'epreuve des defaillance
NL7503472A (nl) Laserinrichting voor hooggedoteerde optische versterkerelementen, in het bijzonder op ultra- fosfaatbasis.
JPS5717802A (en) Center position detecting device for laser beam
AU2066576A (en) Balance beam scale with buckets and check lever
JPS558006A (en) Semi-conductor laser output stabilizing method and device therefore
JPS57159286A (en) Laser working device
JPS53120585A (en) Remaining life measuring method of metal materials
JPS5383193A (en) Marking-off method in use of laser beam
JPS53128097A (en) Laser processing device
JPS5289371A (en) Trouble detecting apparatus
JPS53112710A (en) Flexible disc apparatus
GB1540903A (en) Apparatus for measuring the incident power of light in fibre optics
JPS53105964A (en) Manufacture of semiconductor device
JPS5359483A (en) Spectrophotometer
SU696351A1 (ru) Способ измерени распределени пор по размерам в капилл рно-пористых телах
JPS5372451A (en) Laser scriber unit
JPS5754319A (en) Electron-beam exposing device
DK328376A (da) Optisk sender eller forsterker (laser)
SU658713A1 (ru) Каскодный усилитель с регулируемым усилением
AU535779B2 (en) Amplifier with optical isolator in feedback path
SU608086A1 (ru) Дифференциальна рефрактометрическа проточна кювета
Huard et al. Measurement of Absorption on Optical Fibers by Photoacoustic Effect.
DK54677A (da) Forsterkerarrangement til brug ved undervisning af personer me nedsat horelse