JPH0330814B2 - - Google Patents

Info

Publication number
JPH0330814B2
JPH0330814B2 JP57093849A JP9384982A JPH0330814B2 JP H0330814 B2 JPH0330814 B2 JP H0330814B2 JP 57093849 A JP57093849 A JP 57093849A JP 9384982 A JP9384982 A JP 9384982A JP H0330814 B2 JPH0330814 B2 JP H0330814B2
Authority
JP
Japan
Prior art keywords
light
wood veneer
transmitted light
knots
veneer
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.)
Expired - Lifetime
Application number
JP57093849A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58210554A (ja
Inventor
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 JP9384982A priority Critical patent/JPS58210554A/ja
Publication of JPS58210554A publication Critical patent/JPS58210554A/ja
Publication of JPH0330814B2 publication Critical patent/JPH0330814B2/ja
Granted 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
    • G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
    • G01N21/898—Irregularities in textured or patterned surfaces, e.g. textiles, wood
    • G01N21/8986—Wood

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical 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)
JP9384982A 1982-05-31 1982-05-31 木材単板の節検出装置 Granted JPS58210554A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9384982A JPS58210554A (ja) 1982-05-31 1982-05-31 木材単板の節検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9384982A JPS58210554A (ja) 1982-05-31 1982-05-31 木材単板の節検出装置

Publications (2)

Publication Number Publication Date
JPS58210554A JPS58210554A (ja) 1983-12-07
JPH0330814B2 true JPH0330814B2 (enrdf_load_stackoverflow) 1991-05-01

Family

ID=14093849

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9384982A Granted JPS58210554A (ja) 1982-05-31 1982-05-31 木材単板の節検出装置

Country Status (1)

Country Link
JP (1) JPS58210554A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH046447A (ja) * 1990-04-24 1992-01-10 Nikka Densoku Kk 露光装置および検出装置
DE19745910C2 (de) * 1997-10-17 1999-11-18 Stn Atlas Elektronik Gmbh Verfahren und Vorrichtung zum Überprüfen von Hartholzoberflächen auf Risse
CN102235979A (zh) * 2010-04-22 2011-11-09 常州北星自动化科技有限公司 手机镜片外观检测装置
JP7226053B2 (ja) * 2019-04-16 2023-02-21 トヨタ紡織株式会社 検査装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58190746A (ja) * 1982-04-30 1983-11-07 Matsushita Electric Works Ltd 節検出装置

Also Published As

Publication number Publication date
JPS58210554A (ja) 1983-12-07

Similar Documents

Publication Publication Date Title
JP2795595B2 (ja) 透明板状体の欠点検出方法
KR970003760A (ko) 이물검사방법 및 장치
US3474254A (en) Photoelectronic apparatus for scanning textile material
KR930010527A (ko) 조사를 이용한 표면상태 검사방법 및 그 장치
CA1139862A (en) Apparatus for inspecting translucent articles for faults
JPS5642205A (en) Focus detecting method
US3589816A (en) Apparatus for detecting imperfections on a web
JPS6234097B2 (enrdf_load_stackoverflow)
KR930008449A (ko) 이물검사장치
JPH0330814B2 (enrdf_load_stackoverflow)
CA1168467A (en) Apparatus for automatically detecting and evaluating the characteristics of prints
JPS61176839A (ja) 透明または半透明の板状体の欠点検査装置
JPH0236339A (ja) 光による欠点検査装置
JP3184287B2 (ja) 光拡散体の検査装置
JPH0228815B2 (enrdf_load_stackoverflow)
JPS59220635A (ja) シ−ト状物の欠陥検出方法
JPS60147602A (ja) マ−クセンサ
JPS593307A (ja) 木材単板の節検出装置
US5100227A (en) Translation insensitive keratometer using moire deflectometry
JPH045556A (ja) 球体表面の傷検査装置
JPH06207910A (ja) 表面検査装置
JPH0694438A (ja) 光切断法による外観検査装置
JPS58190746A (ja) 節検出装置
JPH0328748A (ja) 欠陥検出装置
JPH0495859A (ja) プリント板光学検査装置