EP0621576A1 - Luminescent signboard - Google Patents

Luminescent signboard Download PDF

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Publication number
EP0621576A1
EP0621576A1 EP94302797A EP94302797A EP0621576A1 EP 0621576 A1 EP0621576 A1 EP 0621576A1 EP 94302797 A EP94302797 A EP 94302797A EP 94302797 A EP94302797 A EP 94302797A EP 0621576 A1 EP0621576 A1 EP 0621576A1
Authority
EP
European Patent Office
Prior art keywords
sunset
signboard
light emitting
light
emitting means
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.)
Withdrawn
Application number
EP94302797A
Other languages
German (de)
English (en)
French (fr)
Inventor
Kazuo C/O Noda Denshi Kogyo K.K. Noda
Masahito C/O Noda Denshi Kogyo K.K. Noda
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.)
NODA DENSHI KOGYO KK
Original Assignee
NODA DENSHI KOGYO KK
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 NODA DENSHI KOGYO KK filed Critical NODA DENSHI KOGYO KK
Publication of EP0621576A1 publication Critical patent/EP0621576A1/en
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/005—Illumination controller or illuminated signs including an illumination control system
    • 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
    • G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
    • G09F27/007—Displays with power supply provided by solar cells or photocells
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G09F2013/222—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent with LEDs
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
    • G09F2013/227—Electroluminescent displays for vehicles

Definitions

  • the present invention relates to a luminescent signboard such as a traffic signboard which is operable to emit light from a character portion or a frame portion surrounding the character portion so as to permit recognition of the character portion in the nighttime.
  • a luminescent signboard such as a traffic signboard which is operable to emit light from a character portion or a frame portion surrounding the character portion so as to permit recognition of the character portion in the nighttime.
  • a conventional luminescent traffic signboard includes a planar light emitter such as an electroluminescence emitter which is mounted on substantially the whole surface of the signboard and which is operable to emit light after sunset.
  • Acharacter portion including characters such as "STOP" and a frame portion surrounding the character portion are drawn on a transparent plate such as an acrylic plate superposed on the planar light emitter, so that they can be contrasted when the light emitter emits light.
  • the planar light emitter emits light during sunset, its light emitting condition is unchanged, so that it is difficult for an automobile driver, a motorcycle rider, a bicycle rider, or a pedestrian to distinctly visually recognize the characters or sign.
  • an object of the present invention to provide a luminescent signboard having a luminescent display which can be distinctly visually recognized by a person such as an automobile driver, a motorcycle rider, a bicycle rider or a pedestrian.
  • a luminescent signboard comprising;
  • the signboard 1 which is a traffic signboard for temporary stop.
  • the signboard 1 includes a pole 2 fixed to the ground (not shown) and extending upwardly therefrom.
  • a signboard panel 3 having an inverted triangular configuration is mounted on the upper end of the pole 2.
  • a solar battery 4 chargeable by sunlight, a proximity sensor 5 and a sunset sensor 6 are mounted on the upper portion of the signboard panel 3.
  • the proximity sensor 5 is sensitive to thermal changes and is operable to output an approach detection signal through detection of an automobile, a motorcycle, a bicycle or a pedestrian when it or he or she has come to a position within a predetermined distance from the signboard 1.
  • the sunset sensor 6 is operable to output a sunset detection signal upon detection of sunset.
  • a control unit 15 is mounted on the rear surface of the signboard panel 3.
  • the signboard panel 3 includes a base plate 7 made of aluminum and fixed to the pole 2, a cushion sheet 8 made of resilient material and adhered to the front surface of the base plate 7, a first and a second planar light emitter 9A and 9B each comprising a long-life electroluminescence emitter and adhered to the surface of the cushion sheet 8.
  • the first light emitter 9A has a configuration corresponding to characters "STOP”, while the second light emitter 9B has a configuration corresponding to an inverted triangular frame line.
  • a plurality of light emitting diodes 10 are disposed along the inner peripheral edge of the second planar light emitter 9B and are equally spaced from each other.
  • the first and second light emitters 9Aand 9B and the light emitting diodes 10 are covered by a transparent cover plate 11 made of acrylic resin.
  • the signboard panel 3 further includes an opaline backing plate 12 made of polycarbonate and having an extra weather-resistance, a high-intensity reflection sheet 13 adhered to the backing plate 12 so as to cover the same by the whole area thereof excluding an area corresponding to the characters "STOP" and the inverted triangular frame line or the first and the second light emitters 9A and 9B.
  • An outer peripheral trim 14 made of synthetic resin is fitted on the peripheral portion of an assembly including the base plate 7, the cushion sheet 8, the transparent cover plate 11 and the backing plate 12 on which the reflection sheet 13 is attached, so that these parts of the assembly are fixed together by the trim 14.
  • control unit 15 is connected to the solar battery 4 as a power source of the circuit, the proximity sensor 5, the sunset sensor 6 and the planer light emitters 9Aand 9B (the long-life elec- troluminescences) corresponding to the characters "STOP" and the inverted triangular frame line, respectively, and the light emitting diodes 10.
  • the control unit 15 When the sunset sensor 6 outputs a sunset detecting signal upon detection of sunset, the control units 10 energizes the light emitting diodes 10, so that flashing light is emitted from the light emitting diodes 10, permitting recognition in the nighttime of the presence of the signboard 1 by an automobile driver, a bicycle rider, a motorcycle rider, or a pedestrian who is located away from the signboard 1.
  • the proximity sensor 5 When an automobile, a bicycle, a motorcycle or a pedestrian approaches the signboard 1 to reach the position for detection by the proximity sensor 5, the proximity sensor 5 outputs the detection signal which is Inputted to the control unit 15.
  • the control unit 15 energizes the planar light emitters 9Aand 9B (the long-life elec- troluminescences) corresponding to the characters "STOP" and the inverted triangular frame line, respectively, so that the planar light emitters 9Aand 9B emit light.
  • the automobile driver, the bicycle rider, the motorcycle rider or the pedestrian may find, while exhibiting a surprise to some extent, the display of the characters "STOP" which have suddenly appeared. Therefore, the sign represented by the characters can be effectively recognized, resulting in contribution to the safety of traffic.
  • the sunset sensor 6 terminates to output the sunset detecting signal, so that the light emitting diodes 10 are put out by the control unit 15 and that no more light is emitted from the planar light emitters 9A and 9B even if the detecting signal is outputted from the proximity sensor 5.
  • the planar light emitters 9A and 9B emit light during detection of sunset by the sunset sensor 6.
  • FIGS. 4(A) and 4(B) FIGS. 5(A) and 5(B) and FIGS. 6(A) and 6(B) corresponding to FIG. 1 (A) and 1 (B), respectively, there are shown various modifications of the signboard 1 of the above embodiment.
  • the signboard panel 3 has a box-like configuration and is formed integrally with the control unit 15.
  • the solar battery 4 is mounted on the rear side of the signboard panel 3 or the control unit 15.
  • the signboard panel 3 has an enlarged thin box-like configuration.
  • the signboard panel 3 has an enlarged box-like configuration and is formed integrally with the control unit 15.
  • the solar battery 4 is mounted on the rear side of the signboard panel 3 or the control unit 15.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Road Signs Or Road Markings (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
EP94302797A 1993-04-23 1994-04-20 Luminescent signboard Withdrawn EP0621576A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP98011/93 1993-04-23
JP5098011A JP2908664B2 (ja) 1993-04-23 1993-04-23 発光式標識板

Publications (1)

Publication Number Publication Date
EP0621576A1 true EP0621576A1 (en) 1994-10-26

Family

ID=14207848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94302797A Withdrawn EP0621576A1 (en) 1993-04-23 1994-04-20 Luminescent signboard

Country Status (2)

Country Link
EP (1) EP0621576A1 (ja)
JP (1) JP2908664B2 (ja)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003007282A1 (en) * 2001-07-07 2003-01-23 Stephen Trevor Smith Illuminated road sign
FR2871918A1 (fr) * 2004-06-21 2005-12-23 Raymond Fournet Enseigne modulaire
EP2187376A1 (fr) * 2008-11-14 2010-05-19 Manuel Silva Panneau d'information lumineux comprenant une batterie, un dispositif de déclenchement et des moyens de commande logés dans un volume fonctionnel du panneau
CN102568344A (zh) * 2012-01-09 2012-07-11 朱文津 发光标志
WO2013124488A1 (en) * 2012-02-24 2013-08-29 Ecoballast Technologies Limited An improved energy efficiency hybrid illuminated signage apparatus
WO2014009730A1 (en) * 2012-07-13 2014-01-16 Zeta Specialist Lighting Limited Solar powered light assembly
NL2021758B1 (en) * 2018-10-04 2020-05-11 Miortech Holding B V An outdoor digital screen comprising electrowetting optical panels

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3379082B2 (ja) * 1997-03-28 2003-02-17 日幸電機工業株式会社 道路標識
KR100719913B1 (ko) * 2005-12-29 2007-05-18 이상열 도로교통 안전 표지판
JP5405385B2 (ja) * 2010-05-10 2014-02-05 信号電材株式会社 自発光式ｌｅｄ交通標識
JP2013139685A (ja) * 2012-01-04 2013-07-18 Nohara Sangyo Co Ltd 道路標識表示システム

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0422695A2 (en) * 1985-07-23 1991-04-17 Minnesota Mining And Manufacturing Company A system comprising roadway marking strips
FR2663771A1 (fr) * 1990-06-26 1991-12-27 Ollivier Jean Panneau de signalisation routiere.
DE4042044C1 (en) * 1990-12-28 1992-09-03 Souji Kawaguchi Saitama Jp Kobayashi Power-saving illuminated traffic sign - has sec. cell battery charged by solar cell panel by day and lights up only in response to detection of motor vehicle headlamp(s)
EP0516059A1 (de) * 1991-05-28 1992-12-02 D. Swarovski & Co. Verkehrswarnsystem

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04203108A (ja) * 1990-11-30 1992-07-23 Matsushita Electric Ind Co Ltd 自発光型安全標識
JP2902805B2 (ja) * 1991-04-08 1999-06-07 三洋電機株式会社 非常用誘導灯
JPH056496A (ja) * 1991-06-27 1993-01-14 Nissan Motor Co Ltd 道路標識
TW586670U (en) * 2002-03-11 2004-05-01 Is Quasar Corp Disc array apparatus and disc protection apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0422695A2 (en) * 1985-07-23 1991-04-17 Minnesota Mining And Manufacturing Company A system comprising roadway marking strips
FR2663771A1 (fr) * 1990-06-26 1991-12-27 Ollivier Jean Panneau de signalisation routiere.
DE4042044C1 (en) * 1990-12-28 1992-09-03 Souji Kawaguchi Saitama Jp Kobayashi Power-saving illuminated traffic sign - has sec. cell battery charged by solar cell panel by day and lights up only in response to detection of motor vehicle headlamp(s)
EP0516059A1 (de) * 1991-05-28 1992-12-02 D. Swarovski & Co. Verkehrswarnsystem

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003007282A1 (en) * 2001-07-07 2003-01-23 Stephen Trevor Smith Illuminated road sign
US7406787B2 (en) 2001-07-07 2008-08-05 Stephan Trevor Smith Illuminated road sign
FR2871918A1 (fr) * 2004-06-21 2005-12-23 Raymond Fournet Enseigne modulaire
EP2187376A1 (fr) * 2008-11-14 2010-05-19 Manuel Silva Panneau d'information lumineux comprenant une batterie, un dispositif de déclenchement et des moyens de commande logés dans un volume fonctionnel du panneau
FR2938684A1 (fr) * 2008-11-14 2010-05-21 Manuel Silva Panneau d'information lumineux comprenant une batterie, un dispositif de declenchement et des moyens de commande loges dans un volume fonctionnel du panneau
CN102568344A (zh) * 2012-01-09 2012-07-11 朱文津 发光标志
WO2013124488A1 (en) * 2012-02-24 2013-08-29 Ecoballast Technologies Limited An improved energy efficiency hybrid illuminated signage apparatus
CN104221073A (zh) * 2012-02-24 2014-12-17 伊科巴兰斯特科技有限公司 改进的节能型混合照明标志装置
US9488354B2 (en) 2012-02-24 2016-11-08 Ecoballast Technologies Limited Energy hybrid illuminated signage apparatus
WO2014009730A1 (en) * 2012-07-13 2014-01-16 Zeta Specialist Lighting Limited Solar powered light assembly
GB2519703A (en) * 2012-07-13 2015-04-29 Zeta Specialist Lighting Ltd Solar powered light assembly
GB2519703B (en) * 2012-07-13 2017-08-16 Zeta Specialist Lighting Ltd Solar powered light assembly
NL2021758B1 (en) * 2018-10-04 2020-05-11 Miortech Holding B V An outdoor digital screen comprising electrowetting optical panels

Also Published As

Publication number Publication date
JPH06308896A (ja) 1994-11-04
JP2908664B2 (ja) 1999-06-21

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