AU6964974A - Signal lens - Google Patents

Signal lens

Info

Publication number
AU6964974A
AU6964974A AU69649/74A AU6964974A AU6964974A AU 6964974 A AU6964974 A AU 6964974A AU 69649/74 A AU69649/74 A AU 69649/74A AU 6964974 A AU6964974 A AU 6964974A AU 6964974 A AU6964974 A AU 6964974A
Authority
AU
Australia
Prior art keywords
signal lens
lens
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
AU69649/74A
Inventor
John Richard Berg
Sanford Cobb Jr
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
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of AU6964974A publication Critical patent/AU6964974A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/02—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for roads, paths or the like
AU69649/74A 1973-06-01 1974-05-31 Signal lens Expired AU6964974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36621973A 1973-06-01 1973-06-01

Publications (1)

Publication Number Publication Date
AU6964974A true AU6964974A (en) 1975-12-04

Family

ID=23442127

Family Applications (1)

Application Number Title Priority Date Filing Date
AU69649/74A Expired AU6964974A (en) 1973-06-01 1974-05-31 Signal lens

Country Status (5)

Country Link
JP (1) JPS5023197A (en)
AU (1) AU6964974A (en)
BR (1) BR7404487D0 (en)
DE (1) DE2426789A1 (en)
FR (1) FR2232029A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2942730A1 (en) * 1979-10-23 1981-05-07 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Motor vehicle operating parameter display - has non-reflecting matt foil in front of screen printed symbols
US5142415A (en) * 1989-06-15 1992-08-25 Minnesota Mining And Manufacturing Company Back-lit display

Also Published As

Publication number Publication date
FR2232029A1 (en) 1974-12-27
DE2426789A1 (en) 1974-12-19
BR7404487D0 (en) 1975-01-07
FR2232029B3 (en) 1977-04-08
JPS5023197A (en) 1975-03-12

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