GB9500957D0 - Optical method and apparatus for the detection of grain defects in lumber - Google Patents

Optical method and apparatus for the detection of grain defects in lumber

Info

Publication number
GB9500957D0
GB9500957D0 GBGB9500957.7A GB9500957A GB9500957D0 GB 9500957 D0 GB9500957 D0 GB 9500957D0 GB 9500957 A GB9500957 A GB 9500957A GB 9500957 D0 GB9500957 D0 GB 9500957D0
Authority
GB
United Kingdom
Prior art keywords
lumber
detection
optical method
grain defects
grain
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.)
Withdrawn
Application number
GBGB9500957.7A
Other versions
GB2285861A (en
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.)
MATTHEWS PETER C
Original Assignee
MATTHEWS PETER C
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
Priority claimed from GB9400948A external-priority patent/GB9400948D0/en
Application filed by MATTHEWS PETER C filed Critical MATTHEWS PETER C
Publication of GB9500957D0 publication Critical patent/GB9500957D0/en
Publication of GB2285861A publication Critical patent/GB2285861A/en
Withdrawn legal-status Critical Current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
GB9500957A 1994-01-19 1995-01-18 Optical detection of grain defects in lumber Withdrawn GB2285861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9400948A GB9400948D0 (en) 1993-11-19 1994-01-19 Optical method and apparatus for the detection of grain defects in lumber

Publications (2)

Publication Number Publication Date
GB9500957D0 true GB9500957D0 (en) 1995-03-08
GB2285861A GB2285861A (en) 1995-07-26

Family

ID=10749004

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9500957A Withdrawn GB2285861A (en) 1994-01-19 1995-01-18 Optical detection of grain defects in lumber

Country Status (1)

Country Link
GB (1) GB2285861A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6624883B1 (en) * 2000-09-28 2003-09-23 National Research Council Of Canada Method of and apparatus for determining wood grain orientation
WO2011007374A1 (en) * 2009-07-15 2011-01-20 Microtec S.R.L. Method and apparatus for identifying the orientation of wood fibres
SE536623C2 (en) * 2012-03-08 2014-04-08 Innovation Vision Ab Method and apparatus for evaluating a wooden board

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI63835C (en) * 1981-02-10 1983-08-10 Altim Control Ky FOERFARANDE FOER IDENTIFIERING AV ETT VIRKES YTEGENSKAPER
FI74815C (en) * 1986-01-20 1988-03-10 Altim Control Ky Procedure for identifying the surface properties of a wood surface.

Also Published As

Publication number Publication date
GB2285861A (en) 1995-07-26

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)