JPS55114939A - Surface check unit of sheet-shaped material - Google Patents

Surface check unit of sheet-shaped material

Info

Publication number
JPS55114939A
JPS55114939A JP2356579A JP2356579A JPS55114939A JP S55114939 A JPS55114939 A JP S55114939A JP 2356579 A JP2356579 A JP 2356579A JP 2356579 A JP2356579 A JP 2356579A JP S55114939 A JPS55114939 A JP S55114939A
Authority
JP
Japan
Prior art keywords
sheet
shaped material
light receivers
rotary mirrors
spot diameter
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
JP2356579A
Other languages
Japanese (ja)
Inventor
Shozo Nomura
Toshinori Inoue
Yutaka Abe
Motoo Igari
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP2356579A priority Critical patent/JPS55114939A/en
Publication of JPS55114939A publication Critical patent/JPS55114939A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8901—Optical details; Scanning details

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE:To receive always reflection lights to make multi-item difect check possible by scanning plural light beams different in irradiation spot diameter and incident angle with rotary mirrors having rotation phases shifted from each other. CONSTITUTION:Light receivers 4A and 4B are arranged along the scanning direction of irradiation spots on sheet-shaped material 3, and light beams from laser oscillators 1a and 1b different in spot diameter and incident angle/wave length are scanned with rotary mirrors 2a and 2b having rotation phases shifted from each other, and reflection lights from irradiation spots 6a and 6b of respective beams are incident onto light receivers 4A and 4B. Then, outputs A and B of respective light receivers are processed synchronously with driving signals of rotary mirrors, so that various kinds of defect can be classified and checked.
JP2356579A 1979-02-28 1979-02-28 Surface check unit of sheet-shaped material Pending JPS55114939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2356579A JPS55114939A (en) 1979-02-28 1979-02-28 Surface check unit of sheet-shaped material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2356579A JPS55114939A (en) 1979-02-28 1979-02-28 Surface check unit of sheet-shaped material

Publications (1)

Publication Number Publication Date
JPS55114939A true JPS55114939A (en) 1980-09-04

Family

ID=12114043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2356579A Pending JPS55114939A (en) 1979-02-28 1979-02-28 Surface check unit of sheet-shaped material

Country Status (1)

Country Link
JP (1) JPS55114939A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4826984B1 (en) * 1969-01-28 1973-08-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4826984B1 (en) * 1969-01-28 1973-08-17

Similar Documents

Publication Publication Date Title
EP0379226A3 (en) Ranging apparatus
HK37092A (en) Scanning apparatus
JPS54126051A (en) Anamorphic f lens system
GB1389444A (en) Apparatus for automatic inspection of materials
KR900015396A (en) Laser beam deflector
GB1436124A (en) Detection of blemishes in surfaces
EP0701158A3 (en) Apparatus for recording images on interior surface of cylinder
JPS54121249A (en) Laser welding
DE3472123D1 (en) Clearing apparatus, especially a snow clearer
JPS58115314A (en) Measuring device of flatness
ES8506900A1 (en) Apparatus for the inspection of continuous sheets of material
JPS55114939A (en) Surface check unit of sheet-shaped material
JPS57175942A (en) Terminal pressing inspection device for solderless terminal wire
GB8610305D0 (en) Inspection apparatus
JPS5388782A (en) Method of inspecting abnormality of surface of long material
JPS55129733A (en) Color deficiency detection unit for sheet material
JPS56155916A (en) Photoscanner
JPS6449930A (en) Multiple reflection cell
SU466446A1 (en) Ultrasonic device for sequential control of products
JPS6148528A (en) Laser beam scanning and processing device
GB1441386A (en) Scanning apparatus
GB1534766A (en) Scanning system for use in an air-borne vehicle
JPS55113018A (en) Scanning optical system
JPS5382492A (en) Surface inspecting method
JPS5455896A (en) Scanning method of machining razor beam