CA1008245A - Retroreflective sheeting - Google Patents

Retroreflective sheeting

Info

Publication number
CA1008245A
CA1008245A CA161,182A CA161182A CA1008245A CA 1008245 A CA1008245 A CA 1008245A CA 161182 A CA161182 A CA 161182A CA 1008245 A CA1008245 A CA 1008245A
Authority
CA
Canada
Prior art keywords
retroreflective sheeting
retroreflective
sheeting
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
CA161,182A
Other versions
CA161182S (en
Inventor
Chi F. Tung
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 US00244837A external-priority patent/US3802944A/en
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of CA1008245A publication Critical patent/CA1008245A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/08—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures
    • F21V11/14—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using diaphragms containing one or more apertures with many small apertures
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/126—Reflex reflectors including curved refracting surface
    • G02B5/128—Reflex reflectors including curved refracting surface transparent spheres being embedded in matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F13/0472—Traffic signs
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/08—Signs, boards or panels, illuminated from behind the insignia using both translucent and non-translucent layers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/16—Signs formed of or incorporating reflecting elements or surfaces, e.g. warning signs having triangular or other geometrical shape

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Geometry (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Signs Or Road Markings (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Laminated Bodies (AREA)
  • Decoration Of Textiles (AREA)
CA161,182A 1972-01-24 1973-01-12 Retroreflective sheeting Expired CA1008245A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22015272A 1972-01-24 1972-01-24
US00244837A US3802944A (en) 1972-04-17 1972-04-17 Retroreflective sheeting

Publications (1)

Publication Number Publication Date
CA1008245A true CA1008245A (en) 1977-04-12

Family

ID=26914614

Family Applications (1)

Application Number Title Priority Date Filing Date
CA161,182A Expired CA1008245A (en) 1972-01-24 1973-01-12 Retroreflective sheeting

Country Status (8)

Country Link
JP (1) JPS4882163A (en)
BE (1) BE794394A (en)
CA (1) CA1008245A (en)
DE (1) DE2303578C3 (en)
FR (1) FR2169619A5 (en)
GB (1) GB1424754A (en)
IT (1) IT977025B (en)
SE (1) SE390830B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5763169A (en) * 1980-09-30 1982-04-16 Matsushita Electric Works Ltd Surface finishing method for plate for buildings
SE8704680D0 (en) * 1987-04-27 1987-11-25 Lars Sefastsson SELF-LIGHTING DEVICE
US4952023A (en) * 1988-03-18 1990-08-28 Minnesota Mining And Manufacturing Company Internally illuminated retroreflective sign
JPH01173703U (en) * 1988-05-27 1989-12-11
JP2881229B2 (en) * 1988-11-21 1999-04-12 株式会社丸仁 Sheet having retroreflective surface and method of manufacturing the same
US5128804A (en) * 1991-02-06 1992-07-07 Minnesota Mining And Manufacturing Company Permeable retroreflective sheeting
GB2321814B (en) * 1997-01-28 2001-02-14 British Broadcasting Corp Video imaging
GB2339711B (en) * 1998-07-21 2002-07-31 Swintex Fabric reinforced retroreflective assembly
DE60031240T2 (en) 1999-01-14 2007-08-23 Reflec Plc, Winsford RETROREFLECTIVE INKS
JP4925533B2 (en) * 2001-09-27 2012-04-25 日本カーバイド工業株式会社 Labeling substrate and marking system
KR100851680B1 (en) 2007-09-15 2008-08-13 (주)리플로맥스 That tensile strength improves cube-corner type self-reflection sheet
EP2040244A1 (en) * 2007-09-18 2009-03-25 3M Innovative Properties Company Illumination device and actively illuminated article
WO2010104671A1 (en) 2009-03-12 2010-09-16 3M Innovative Properties Company Laminate reflective and electroluminescent article
US9044055B2 (en) 2009-03-12 2015-06-02 3M Innovative Properties Company Garment with a retroreflective and electroluminescent article
US8727550B2 (en) 2009-03-12 2014-05-20 Oryon Technologies, Llc Hybrid electroluminescent assembly
US20180127915A1 (en) * 2015-04-28 2018-05-10 C.R.Y. Sas Retroreflective, elongated, filamentous product, process for making the same, uses thereof and products made therefrom
CN116705900B (en) * 2023-05-29 2023-12-19 浙江夜光明光电科技股份有限公司 Preparation method of glass microsphere type reflecting material for double-glass solar backboard

Also Published As

Publication number Publication date
DE2303578C3 (en) 1975-04-03
IT977025B (en) 1974-09-10
GB1424754A (en) 1976-02-11
JPS4882163A (en) 1973-11-02
DE2303578A1 (en) 1973-08-02
FR2169619A5 (en) 1973-09-07
BE794394A (en) 1973-07-23
SE390830B (en) 1977-01-24
DE2303578B2 (en) 1974-07-25

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