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AU2064288A - Improvements in relation to a display sign - Google Patents

Improvements in relation to a display sign

Info

Publication number
AU2064288A
AU2064288A AU20642/88A AU2064288A AU2064288A AU 2064288 A AU2064288 A AU 2064288A AU 20642/88 A AU20642/88 A AU 20642/88A AU 2064288 A AU2064288 A AU 2064288A AU 2064288 A AU2064288 A AU 2064288A
Authority
AU
Australia
Prior art keywords
relation
display sign
sign
display
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.)
Granted
Application number
AU20642/88A
Other versions
AU605342C (en
AU605342B2 (en
Inventor
Robert A. Lewitt
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.)
RHAM INDUSTRIES AUST PTY Ltd
Original Assignee
LIGHTCENTRE Pty Ltd
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 LIGHTCENTRE Pty Ltd filed Critical LIGHTCENTRE Pty Ltd
Priority to AU20642/88A priority Critical patent/AU605342C/en
Priority claimed from AU20642/88A external-priority patent/AU605342C/en
Publication of AU2064288A publication Critical patent/AU2064288A/en
Application granted granted Critical
Publication of AU605342B2 publication Critical patent/AU605342B2/en
Publication of AU605342C publication Critical patent/AU605342C/en
Anticipated expiration legal-status Critical
Ceased 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
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • 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
    • G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • 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
    • G09F2013/05—Constructional details indicating exit way or orientation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
AU20642/88A 1987-08-12 1988-08-11 Improvements in relation to a display sign Ceased AU605342C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU20642/88A AU605342C (en) 1987-08-12 1988-08-11 Improvements in relation to a display sign

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
AUPI3686 1987-08-12
AUPI368687 1987-08-12
AUPI540587 1987-11-13
AUPI5405 1987-11-13
AU20642/88A AU605342C (en) 1987-08-12 1988-08-11 Improvements in relation to a display sign

Publications (3)

Publication Number Publication Date
AU2064288A true AU2064288A (en) 1989-02-16
AU605342B2 AU605342B2 (en) 1991-01-10
AU605342C AU605342C (en) 1994-08-04

Family

ID=

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5390436A (en) * 1990-09-20 1995-02-21 Illumination Research Group, Inc. Display system
WO1998012690A1 (en) * 1996-09-26 1998-03-26 Eleven Lighting Pty. Limited Improvements in illuminated display systems
US6612729B1 (en) 2000-03-16 2003-09-02 3M Innovative Properties Company Illumination device
US6621973B1 (en) 2000-03-16 2003-09-16 3M Innovative Properties Company Light guide with protective outer sleeve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5390436A (en) * 1990-09-20 1995-02-21 Illumination Research Group, Inc. Display system
US5625968A (en) * 1990-09-20 1997-05-06 Illumination Research Group, Inc. Display system
WO1998012690A1 (en) * 1996-09-26 1998-03-26 Eleven Lighting Pty. Limited Improvements in illuminated display systems
US6217186B1 (en) 1996-09-26 2001-04-17 Eleven Lighting Pty. Limited Illuminated display systems
US6612729B1 (en) 2000-03-16 2003-09-02 3M Innovative Properties Company Illumination device
US6621973B1 (en) 2000-03-16 2003-09-16 3M Innovative Properties Company Light guide with protective outer sleeve

Also Published As

Publication number Publication date
AU605342B2 (en) 1991-01-10

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired