ZA893703B - High efficiency cube-corner retroreflective material - Google Patents

High efficiency cube-corner retroreflective material

Info

Publication number
ZA893703B
ZA893703B ZA893703A ZA893703A ZA893703B ZA 893703 B ZA893703 B ZA 893703B ZA 893703 A ZA893703 A ZA 893703A ZA 893703 A ZA893703 A ZA 893703A ZA 893703 B ZA893703 B ZA 893703B
Authority
ZA
South Africa
Prior art keywords
faces
rectangular
surface layer
retroreflective material
triangular
Prior art date
Application number
ZA893703A
Other languages
English (en)
Inventor
John Carl Nelson
Carl Nelson John
Mark Edward Gardiner
Edward Gardiner Mark
Roger Henry Appeldom
Henry Appeldom Roger
Timothy Lee Hoopman
Lee Hoopman Timothy
Original Assignee
Minnesota Mining & Mfg
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 Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Publication of ZA893703B publication Critical patent/ZA893703B/xx

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/12Optical coatings produced by application to, or surface treatment of, optical elements by surface treatment, e.g. by irradiation
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/12Reflex reflectors
    • G02B5/122Reflex reflectors cube corner, trihedral or triple reflector type
    • G02B5/124Reflex reflectors cube corner, trihedral or triple reflector type plural reflecting elements forming part of a unitary plate or sheet
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S359/00Optical: systems and elements
    • Y10S359/90Methods

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Road Signs Or Road Markings (AREA)
ZA893703A 1988-05-20 1989-05-17 High efficiency cube-corner retroreflective material ZA893703B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/197,107 US4938563A (en) 1986-11-21 1988-05-20 High efficiency cube corner retroflective material

Publications (1)

Publication Number Publication Date
ZA893703B true ZA893703B (en) 1991-01-30

Family

ID=22728080

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA893703A ZA893703B (en) 1988-05-20 1989-05-17 High efficiency cube-corner retroreflective material

Country Status (11)

Country Link
US (1) US4938563A (de)
EP (1) EP0342958B1 (de)
JP (1) JP2986161B2 (de)
KR (1) KR0151136B1 (de)
CN (1) CN1022588C (de)
AT (1) ATE115297T1 (de)
AU (1) AU620399B2 (de)
BR (1) BR8902358A (de)
CA (1) CA1319551C (de)
DE (1) DE68919749T2 (de)
ZA (1) ZA893703B (de)

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JP3974959B2 (ja) * 1996-09-30 2007-09-12 スリーエム カンパニー 再帰反射性情報表示シートの製造方法
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Also Published As

Publication number Publication date
KR890017553A (ko) 1989-12-16
DE68919749T2 (de) 1995-06-14
CN1038885A (zh) 1990-01-17
US4938563A (en) 1990-07-03
JP2986161B2 (ja) 1999-12-06
AU620399B2 (en) 1992-02-20
ATE115297T1 (de) 1994-12-15
JPH0222602A (ja) 1990-01-25
CN1022588C (zh) 1993-10-27
EP0342958A3 (en) 1990-02-21
DE68919749D1 (de) 1995-01-19
KR0151136B1 (ko) 1998-12-15
EP0342958A2 (de) 1989-11-23
EP0342958B1 (de) 1994-12-07
CA1319551C (en) 1993-06-29
AU3487989A (en) 1989-11-23
BR8902358A (pt) 1990-01-09

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