JPS649304A - Height measuring apparatus - Google Patents

Height measuring apparatus

Info

Publication number
JPS649304A
JPS649304A JP16229187A JP16229187A JPS649304A JP S649304 A JPS649304 A JP S649304A JP 16229187 A JP16229187 A JP 16229187A JP 16229187 A JP16229187 A JP 16229187A JP S649304 A JPS649304 A JP S649304A
Authority
JP
Japan
Prior art keywords
light
height
linear
output
measured
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
JP16229187A
Other languages
Japanese (ja)
Inventor
Tetsuo Hizuka
Noriyuki Hiraoka
Giichi Kakigi
Masahito Nakajima
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16229187A priority Critical patent/JPS649304A/en
Publication of JPS649304A publication Critical patent/JPS649304A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To enable measurement of the height of an object to be measured containing a rectangular prism-shaped object in a short time with an apparatus of a simple construction, by calculating the height of an object to be measured from a distance between positions where an output of a photo detector is at is maximum. CONSTITUTION:This apparatus is provided with a lighting optical system 1 to irradiate an object 2 to be measured with a linear striped light, a cylindrical lens 3 to receive reflected light of the striped light applied on the object 2 for condensing linear light at a position corresponding to the reflected light and a photodetector 4 to detect intensity of the linear light condensed therewith. With such an arrangement, the stripes light applied onto the object 2 containing a rectangular prism-shaped object by the optical system 1 is reflected on the object 2 to be condensed with the lens 3 as linear light on the detector 4. The decoder 4 is so arranged to intersect the linear light condensed so that an output is maximized at a position where the light condenses. Thus, the height of the object 2 is calculated from a distance (d) between positions at which the output is at its maximum thereby enabling measurement in a short time with an apparatus of a simple construction.
JP16229187A 1987-07-01 1987-07-01 Height measuring apparatus Pending JPS649304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16229187A JPS649304A (en) 1987-07-01 1987-07-01 Height measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16229187A JPS649304A (en) 1987-07-01 1987-07-01 Height measuring apparatus

Publications (1)

Publication Number Publication Date
JPS649304A true JPS649304A (en) 1989-01-12

Family

ID=15751695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16229187A Pending JPS649304A (en) 1987-07-01 1987-07-01 Height measuring apparatus

Country Status (1)

Country Link
JP (1) JPS649304A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02259503A (en) * 1989-03-31 1990-10-22 Suzuki Motor Co Ltd Surface detector
US5691815A (en) * 1996-01-02 1997-11-25 Lockheed Missiles & Space Co., Inc. Laser inspection tool system
JP2007192813A (en) * 2005-12-22 2007-08-02 Matsushita Electric Ind Co Ltd Method and device for measuring interface position, method and device for measuring layer thickness, and method and device for manufacturing optical disk
WO2013118676A1 (en) 2012-02-08 2013-08-15 株式会社ダイセル Polyglycerin dialkyl or alkenyl ether, and cosmetic composition containing same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02259503A (en) * 1989-03-31 1990-10-22 Suzuki Motor Co Ltd Surface detector
US5691815A (en) * 1996-01-02 1997-11-25 Lockheed Missiles & Space Co., Inc. Laser inspection tool system
JP2007192813A (en) * 2005-12-22 2007-08-02 Matsushita Electric Ind Co Ltd Method and device for measuring interface position, method and device for measuring layer thickness, and method and device for manufacturing optical disk
WO2013118676A1 (en) 2012-02-08 2013-08-15 株式会社ダイセル Polyglycerin dialkyl or alkenyl ether, and cosmetic composition containing same

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