IT1126842B - Retroriflettometro perfezionato a lettura diretta - Google Patents

Retroriflettometro perfezionato a lettura diretta

Info

Publication number
IT1126842B
IT1126842B IT7951179A IT5117979A IT1126842B IT 1126842 B IT1126842 B IT 1126842B IT 7951179 A IT7951179 A IT 7951179A IT 5117979 A IT5117979 A IT 5117979A IT 1126842 B IT1126842 B IT 1126842B
Authority
IT
Italy
Prior art keywords
reflectometer
perfected
direct reading
reading
direct
Prior art date
Application number
IT7951179A
Other languages
English (en)
Other versions
IT7951179A0 (it
Inventor
Stefano Pallotta
Original Assignee
Autostrade Concessioni & Costr
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 Autostrade Concessioni & Costr filed Critical Autostrade Concessioni & Costr
Publication of IT7951179A0 publication Critical patent/IT7951179A0/it
Priority to IT7951179A priority Critical patent/IT1126842B/it
Priority to GB8040453A priority patent/GB2067748B/en
Priority to CH928680A priority patent/CH643656A5/it
Priority to AT6187/80A priority patent/AT391209B/de
Priority to LU83013A priority patent/LU83013A1/fr
Priority to PT72240A priority patent/PT72240B/pt
Priority to NL8006942A priority patent/NL8006942A/nl
Priority to SE8009007A priority patent/SE436933B/sv
Priority to DE19803048178 priority patent/DE3048178A1/de
Priority to BE0/203269A priority patent/BE886793A/fr
Priority to DK545680A priority patent/DK155348C/da
Priority to FR8027024A priority patent/FR2473717A1/fr
Priority to NO80803879A priority patent/NO153821C/no
Priority to US06/219,390 priority patent/US4373819A/en
Application granted granted Critical
Publication of IT1126842B publication Critical patent/IT1126842B/it

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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity

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 Or Analysing Materials By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Nuclear Medicine (AREA)
  • Measurement Of Radiation (AREA)
IT7951179A 1979-12-21 1979-12-21 Retroriflettometro perfezionato a lettura diretta IT1126842B (it)

Priority Applications (14)

Application Number Priority Date Filing Date Title
IT7951179A IT1126842B (it) 1979-12-21 1979-12-21 Retroriflettometro perfezionato a lettura diretta
GB8040453A GB2067748B (en) 1979-12-21 1980-12-17 Retroreflectometer
CH928680A CH643656A5 (it) 1979-12-21 1980-12-17 Retroriflettometro a lettura diretta.
AT6187/80A AT391209B (de) 1979-12-21 1980-12-18 Reflektometer mit direkter ablesung
LU83013A LU83013A1 (fr) 1979-12-21 1980-12-18 Retroreflectometre perfectionne a lecture directe
NL8006942A NL8006942A (nl) 1979-12-21 1980-12-19 Verbeterde terugstralingsmeter met rechtstreekse aflezing.
PT72240A PT72240B (fr) 1979-12-21 1980-12-19 Retroreflectometre perfectionne a lecture directe
SE8009007A SE436933B (sv) 1979-12-21 1980-12-19 Reflektionsmetare med direkt avlesning
DE19803048178 DE3048178A1 (de) 1979-12-21 1980-12-19 Vervollkommneter rueckstrahlungsmesser mit direkter ablesung
BE0/203269A BE886793A (fr) 1979-12-21 1980-12-19 Retroreflectometre perfectionne a lecture directe
DK545680A DK155348C (da) 1979-12-21 1980-12-19 Retroreflektometer med direkte aflaesning
FR8027024A FR2473717A1 (fr) 1979-12-21 1980-12-19 Retroreflectometre perfectionne a lecture directe
NO80803879A NO153821C (no) 1979-12-21 1980-12-19 Tilbakestraalingsmaaler med direkte avlesning.
US06/219,390 US4373819A (en) 1979-12-21 1980-12-22 Retroreflectometer giving direct reading

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT7951179A IT1126842B (it) 1979-12-21 1979-12-21 Retroriflettometro perfezionato a lettura diretta

Publications (2)

Publication Number Publication Date
IT7951179A0 IT7951179A0 (it) 1979-12-21
IT1126842B true IT1126842B (it) 1986-05-21

Family

ID=11274524

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7951179A IT1126842B (it) 1979-12-21 1979-12-21 Retroriflettometro perfezionato a lettura diretta

Country Status (14)

Country Link
US (1) US4373819A (it)
AT (1) AT391209B (it)
BE (1) BE886793A (it)
CH (1) CH643656A5 (it)
DE (1) DE3048178A1 (it)
DK (1) DK155348C (it)
FR (1) FR2473717A1 (it)
GB (1) GB2067748B (it)
IT (1) IT1126842B (it)
LU (1) LU83013A1 (it)
NL (1) NL8006942A (it)
NO (1) NO153821C (it)
PT (1) PT72240B (it)
SE (1) SE436933B (it)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505590A (en) * 1982-08-30 1985-03-19 Amerace Corporation Mobile testing apparatus
US4721389A (en) * 1985-04-18 1988-01-26 Potters Industries, Inc. Method and apparatus for measuring retroreflectivity of a reflective layer on a surface
DE3816416A1 (de) * 1988-05-13 1989-11-16 Bayerische Motoren Werke Ag Verfahren und vorrichtung zum erfassen des wetterbedingten glaettezustands eines fahrbahnbelag
FR2661248B1 (fr) * 1990-04-20 1994-11-18 France Etat Ponts Chaussees Procede et dispositif de mesure en continu et a lumiere ambiante de la retroflexion d'un marquage routier et du contraste.
US5196906A (en) * 1990-06-29 1993-03-23 Tma Technologies, Inc. Modular scatterometer with interchangeable scanning heads
US6407674B1 (en) * 1997-03-05 2002-06-18 Philip Anthony Gallagher Reflectivity measuring apparatus and method
US6166813A (en) * 1997-04-18 2000-12-26 Georgia Tech Research Corporation Retroreflectometer and method for measuring retroreflectivity of materials
US6674878B2 (en) * 2001-06-07 2004-01-06 Facet Technology Corp. System for automated determination of retroreflectivity of road signs and other reflective objects
US6891960B2 (en) 2000-08-12 2005-05-10 Facet Technology System for road sign sheeting classification
GB2372314B (en) * 2000-10-11 2005-03-16 Votr Consulting Ltd Contrast luminance measuring apparatus and method
EP1495308B1 (en) * 2002-04-15 2018-08-29 FORCE Technology Apparatus for measuring light reflections of an object and use thereof
FI119831B (fi) * 2003-06-10 2009-03-31 Destia Oy Menetelmä ja laitteisto tiemerkinnän kuntotason määrittämiseksi
US7590310B2 (en) 2004-05-05 2009-09-15 Facet Technology Corp. Methods and apparatus for automated true object-based image analysis and retrieval
CA2598994C (en) * 2005-02-25 2012-05-01 Belfort Instrument Company Multiple-angle retroreflectometer
US7451041B2 (en) * 2005-05-06 2008-11-11 Facet Technology Corporation Network-based navigation system having virtual drive-thru advertisements integrated with actual imagery from along a physical route
ES2306616B1 (es) 2008-02-12 2009-07-24 Fundacion Cidaut Procedimiento de determinacion de la luminancia de señales de trafico y dispositivo para su realizacion.
ES2358814B1 (es) * 2008-05-23 2012-04-02 Universidad De Alcal�? Dispositivo para la medida de la retrorreflectividad en el infrarrojo cercano de superficies retrorreflectivas.
EP2531837B1 (en) * 2010-02-04 2021-04-28 FORCE Technology Apparatus and method for measuring retroreflectivity of a surface
US8205994B1 (en) * 2011-05-02 2012-06-26 Avery Dennison Corporation Minimum retroreflectivity compliance system, method and assembly
CN112557348B (zh) * 2021-01-04 2023-12-19 中交国通公路工程技术有限公司 一种便于使用的逆反射系数测试仪

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2739246A (en) * 1950-06-08 1956-03-20 Henry A Gardner Lab Inc Exposure head for photometric comparator instruments
DE2060834C3 (de) * 1970-12-10 1974-01-31 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur Bestimmung der Reflexionseigenschaften von Straßendecken
FR2258617A1 (en) * 1974-01-17 1975-08-18 Peugeot & Renault Motor vehicle paintwork inspection process - uses observation of reflected grid lines on photographic film
US4092068A (en) * 1976-05-05 1978-05-30 Domtar Inc. Surface sensor
DE2727926C3 (de) * 1977-06-21 1980-11-13 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Vorrichtung zur Ermittlung von Fehlstellen auf der reflektierenden Oberfläche einer Bahn
DE2811344A1 (de) * 1978-03-16 1979-09-27 Deilmann Haniel Gmbh Schachtabteufgreifer

Also Published As

Publication number Publication date
DK155348C (da) 1989-08-28
NL8006942A (nl) 1981-07-16
CH643656A5 (it) 1984-06-15
ATA618780A (de) 1990-02-15
BE886793A (fr) 1981-04-16
NO803879L (no) 1981-06-22
NO153821C (no) 1986-06-04
FR2473717B1 (it) 1984-11-30
DK545680A (da) 1981-06-22
GB2067748B (en) 1983-08-24
GB2067748A (en) 1981-07-30
FR2473717A1 (fr) 1981-07-17
SE436933B (sv) 1985-01-28
US4373819A (en) 1983-02-15
DE3048178C2 (it) 1988-02-25
LU83013A1 (fr) 1981-03-27
PT72240A (fr) 1981-01-01
NO153821B (no) 1986-02-17
SE8009007L (sv) 1981-06-22
IT7951179A0 (it) 1979-12-21
DK155348B (da) 1989-03-28
PT72240B (fr) 1981-12-31
AT391209B (de) 1990-09-10
DE3048178A1 (de) 1981-11-26

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