EP0933589A2 - Dispositif d' éclairage à espacement variable - Google Patents

Dispositif d' éclairage à espacement variable Download PDF

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Publication number
EP0933589A2
EP0933589A2 EP99101286A EP99101286A EP0933589A2 EP 0933589 A2 EP0933589 A2 EP 0933589A2 EP 99101286 A EP99101286 A EP 99101286A EP 99101286 A EP99101286 A EP 99101286A EP 0933589 A2 EP0933589 A2 EP 0933589A2
Authority
EP
European Patent Office
Prior art keywords
raceway
boards
pair
along
conductive strips
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Withdrawn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
EP99101286A
Other languages
German (de)
English (en)
Other versions
EP0933589A3 (fr
Inventor
Giacomo Fuca'
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.)
Fge Di Fuca' Giacomo
Original Assignee
Fge Di Fuca' Giacomo
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 Fge Di Fuca' Giacomo filed Critical Fge Di Fuca' Giacomo
Publication of EP0933589A2 publication Critical patent/EP0933589A2/fr
Publication of EP0933589A3 publication Critical patent/EP0933589A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/34—Supporting elements displaceable along a guiding element
    • F21V21/35—Supporting elements displaceable along a guiding element with direct electrical contact between the supporting element and electric conductors running along the guiding element
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a lighting device with a variable pitch.
  • the present invention consists of a lighting device comprising a plurality of light sources spaced from each other by a distance that can be changed in a continuous manner.
  • Such a device can be advantageously used for backlighting (i.e. indirect lighting) a panel such as the semitransparent surface of pushbutton panels in doorbells, intercommunicating systems or intercoms, road guide posts and other similar devices.
  • backlighting i.e. indirect lighting
  • a panel such as the semitransparent surface of pushbutton panels in doorbells, intercommunicating systems or intercoms, road guide posts and other similar devices.
  • the surfaces carrying alphanumeric characters require an additional light source in order that an observer can read the indications or indicia written thereon.
  • a drawback of the known devices resides in the difficulty of their assembling, particularly when they are to be precisely located to register with the semitransparent panels of the users (the residents) in an intercom (doorplate) push button panel.
  • the drawback of a connection through flexible wires is that the whole device is rendered unserviceable when a section of the flexible connecting wire is detached or broken.
  • the boards can be precisely positioned along the raceway in correspondence of the semitransparent surfaces to be lightened, for example when assembling the pushbutton panel.
  • the supporting raceway can further be provided with reference notches allowing a more precise positioning of the boards carrying the LEDs in correspondence of the characters to be lightened.
  • the supporting raceway can be provided with indentations to positively lock the boards at given locations along the raceway and prevent their sliding, particularly when the raceway is vertically mounted.
  • a backlighting device comprises a U-shaped elongated housing or raceway 1 of an electrically insulating plastic material.
  • Said raceway 1 has two sides or side walls 1' and each side wall is internally provided with an elastic(ally deformable) rib 2 parallel to the longitudinal axis of the raceway, and with a base 1''.
  • an electrically conductive strip 3 is fastened to the base 1'' and extends longitudinally along the whole length of the raceway 1.
  • Such conductive strips 3 are formed by an adhesive lower layer 3a (made up by a tape sticky on both faces, or by deposing a resin or other known resin system), by an intermediate support 3b of an electrically non conductive plastic material, and by an upper layer 3c of a conductive material that has been deposited over the support 3b, e.g. through known technique used in manufacturing printed circuit boards or by gluing.
  • the boards 5 are flat elements of an electrically non conductive material carrying light emitting diodes or LEDs 6, as well as other circuit components 7, such as resistors, diodes and capacitors.
  • the boards 8 are of an electrically non conductive material and are equipped with terminals 9 for connecting the device to a feeding line, for example through a pair of electric leads.
  • Figures 4a and 4b show electrical connections realized by means of conductive paths 10 deposited over the lower surfaces of the boards 5 and conductive paths 11 deposited over the lower surfaces of the boards 8.
  • Both the conductive paths 10 and the conductive paths 11 comprise sections, 10a and 11a respectively, that are parallel to the shift or displacement directions along the raceway 1 of the boards 5 and the boards 8, respectively, and are positioned so as to ensure the electrical contact with the conductive layer 3c of the conductive strips 3.
  • the boards can be easily shifted and/or replaced as desired inside the raceway, and the raceway can be transversally cut at the desired length.
  • Figure 5 shows a raceway 1 on the base 1'' of which a strip 12 with millimeter marks is provided, e.g. by applying to the base an adhesive tape provided with marks, for improving the precise positioning of the single boards 5 near the correspondent characters to be backlit.
  • Figures 6a and 6b show a raceway 1 having a base 1'' provided with indentations 13, for example either directly formed on the base 1'' or applied by gluing, that are adapted to engage a projection 14 on the lower surface of the boards 5 and 8.
  • the engagement between the indentations 13 and the projections 14 forms a sort of ratchet-gear device that maintains the boards 5 or 8 in the desired position and prevents their accidental sliding when in a vertically disposed raceway 1, the pressure applied by the guides 4 onto the boards 5 and 8 is reduced due to thermal expansion, wear or other reasons.
  • additional strips of a conductive material can be provided on the base 1'' of the raceway, for example when this is required to individually control the light sources provided on the boards.
  • additional strips can be used to connect and control auxiliary boards carrying for example microphones, loudspeakers, etc., and provided on their lower surfaces with conductive circuits or paths to electrically connect the feeding line with the boards, such circuits being similar to those discussed with reference to Figures 4a and 4b.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
EP99101286A 1998-01-28 1999-01-25 Dispositif d' éclairage à espacement variable Withdrawn EP0933589A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO980015U 1998-01-28
IT1998TO000015U IT245785Y1 (it) 1998-01-28 1998-01-28 Dispositivo di illuminazione a passo variabile.

Publications (2)

Publication Number Publication Date
EP0933589A2 true EP0933589A2 (fr) 1999-08-04
EP0933589A3 EP0933589A3 (fr) 2001-03-14

Family

ID=11416268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99101286A Withdrawn EP0933589A3 (fr) 1998-01-28 1999-01-25 Dispositif d' éclairage à espacement variable

Country Status (2)

Country Link
EP (1) EP0933589A3 (fr)
IT (1) IT245785Y1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006131510A1 (fr) * 2005-06-10 2006-12-14 Roberto Goldin Dispositif d'eclairage a associer a des installations d'eclairage public
GB2462154A (en) * 2008-04-01 2010-02-03 Lebensstil Technology Co Ltd LED mounting frame with circuit board slots carrying power supply rails
GB2483469A (en) * 2010-09-08 2012-03-14 Gurit Uk Ltd Resin Curing Device and Method
CN101933071B (zh) * 2008-02-04 2014-06-25 皇家飞利浦电子股份有限公司 发光系统、发光元件和显示器
EP3372891A1 (fr) * 2013-12-25 2018-09-12 Koito Manufacturing Co., Ltd. Lampe de véhicule

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471415A (en) * 1983-06-20 1984-09-11 Wilbrecht Electronics, Inc. Mounting bar for spacing indicator lights
JP2578356B2 (ja) * 1988-04-28 1997-02-05 株式会社エービーシー商会 光源可変照明管
US4884178A (en) * 1989-03-13 1989-11-28 Roberts James R Indirect lighting fixture
US4999755A (en) * 1990-06-07 1991-03-12 Lin Tak Huei Tube light
DE4101041A1 (de) * 1990-10-15 1992-07-23 Zicoli Leuchten Zimmermann & C Stromeinspeisungsplatte
US5655833A (en) * 1995-06-07 1997-08-12 Control Alt Design Ltd. Free-standing task lighting fixture

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006131510A1 (fr) * 2005-06-10 2006-12-14 Roberto Goldin Dispositif d'eclairage a associer a des installations d'eclairage public
CN101933071B (zh) * 2008-02-04 2014-06-25 皇家飞利浦电子股份有限公司 发光系统、发光元件和显示器
GB2462154A (en) * 2008-04-01 2010-02-03 Lebensstil Technology Co Ltd LED mounting frame with circuit board slots carrying power supply rails
GB2483469A (en) * 2010-09-08 2012-03-14 Gurit Uk Ltd Resin Curing Device and Method
GB2483469B (en) * 2010-09-08 2012-09-26 Gurit Uk Ltd Resin curing kit and method
EP3372891A1 (fr) * 2013-12-25 2018-09-12 Koito Manufacturing Co., Ltd. Lampe de véhicule
US10462858B2 (en) 2013-12-25 2019-10-29 Koito Manufacturing Co., Ltd. Vehicle lamp

Also Published As

Publication number Publication date
ITTO980015U1 (it) 1999-07-28
IT245785Y1 (it) 2002-03-26
EP0933589A3 (fr) 2001-03-14

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