GB1288936A - - Google Patents

Info

Publication number
GB1288936A
GB1288936A GB1288936DA GB1288936A GB 1288936 A GB1288936 A GB 1288936A GB 1288936D A GB1288936D A GB 1288936DA GB 1288936 A GB1288936 A GB 1288936A
Authority
GB
United Kingdom
Prior art keywords
master
fault
specimen
comparator
signal
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
Application number
Other languages
English (en)
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 filed Critical
Publication of GB1288936A publication Critical patent/GB1288936A/en
Expired 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
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/956—Inspecting patterns on the surface of objects

Landscapes

  • 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)
GB1288936D 1969-05-20 1969-05-20 Expired GB1288936A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2572269 1969-05-20

Publications (1)

Publication Number Publication Date
GB1288936A true GB1288936A (enrdf_load_stackoverflow) 1972-09-13

Family

ID=10232232

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1288936D Expired GB1288936A (enrdf_load_stackoverflow) 1969-05-20 1969-05-20

Country Status (1)

Country Link
GB (1) GB1288936A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0194104A3 (en) * 1985-02-28 1989-01-18 Texas Instruments Incorporated Apparatus for automatically inspecting electrical connecting pins
GB2225688A (en) * 1988-11-23 1990-06-06 Smiths Industries Plc Image enhancement of a monochrome camera picture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0194104A3 (en) * 1985-02-28 1989-01-18 Texas Instruments Incorporated Apparatus for automatically inspecting electrical connecting pins
GB2225688A (en) * 1988-11-23 1990-06-06 Smiths Industries Plc Image enhancement of a monochrome camera picture

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee