EP1774499A2 - Dispositif de retenue pour l'illumination d'une oeuvre d'art - Google Patents

Dispositif de retenue pour l'illumination d'une oeuvre d'art

Info

Publication number
EP1774499A2
EP1774499A2 EP05761751A EP05761751A EP1774499A2 EP 1774499 A2 EP1774499 A2 EP 1774499A2 EP 05761751 A EP05761751 A EP 05761751A EP 05761751 A EP05761751 A EP 05761751A EP 1774499 A2 EP1774499 A2 EP 1774499A2
Authority
EP
European Patent Office
Prior art keywords
front panel
light
artwork
compliant layer
light source
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Withdrawn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
EP05761751A
Other languages
German (de)
English (en)
Other versions
EP1774499A4 (fr
Inventor
Randolph Scott Beeman
Eric Bretschneider
David C. Miller
Timothy E. Safford
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.)
Beeman Holdings LLC
Original Assignee
Beeman Holdings LLC
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 Beeman Holdings LLC filed Critical Beeman Holdings LLC
Publication of EP1774499A2 publication Critical patent/EP1774499A2/fr
Publication of EP1774499A4 publication Critical patent/EP1774499A4/fr
Withdrawn legal-status Critical Current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
    • G09F13/18—Edge-illuminated signs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G1/00—Mirrors; Picture frames or the like, e.g. provided with heating, lighting or ventilating means
    • A47G1/06—Picture frames
    • A47G1/0616—Ornamental frames, e.g. with illumination, speakers or decorative features
    • A47G1/0622—Ornamental frames, e.g. with illumination, speakers or decorative features with illumination
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/02—Signs, boards, or panels, illuminated by artificial light sources positioned in front of 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
    • G09F13/14—Arrangements of reflectors therein

Definitions

  • This invention relates to illumination of artwork.
  • Artwork can be mounted in holders including picture frames.
  • the artwork may be covered with a clear sheet of glass or plastic. Photographs, pictures or other artwork having a substantially flat surface are well suited for having a clear cover.
  • the clear cover can help protect the artwork from damage yet permit viewing of the underlying work.
  • External lighting may be used to illuminate the artwork for viewing when it is desired to enhance the ambient light.
  • the artwork may be viewed using reflected or direct light.
  • Transparent materials may be placed in front of artwork so that the artwork may be viewed through material.
  • glass or plastic may be used to protect the underlying artwork. External lighting on the artwork may result in glare off of the front surface of the transparent material.
  • Use of a matted glass or plastic may reduce glare, but can cause distortion of the photograph or artwork being displayed
  • Photographs may be created using a trichromatic system using, for example, the colors red, green and blue.
  • Computer printed artwork may be created using a tetrachromatic system using , for example, the colors cyan, magenta, yellow and black.
  • General printed artwork may feature even more color components for extremely high color rendering. These systems may be designed for use with reflected light. That is, external light that is reflected off of the front surface of the artwork.
  • FIG. 1 illustrates an apparatus for mounting artwork 130 in a frame 100.
  • a clear covering 110 may be placed in front of the artwork 130 to protect the artwork from damage from a variety of factors including the environment, dirt, certain types of light and undesired contact.
  • the front panel 110 may be transparent, tinted, translucent or have other desired optical characteristics.
  • a back panel 140 is disposed behind the artwork 130 to hold the artwork 140 in close contact with the front panel 110.
  • the front panel 110 and the back panel 140 "sandwich" the artwork 130.
  • the front panel 110, artwork 130 and the back panel 140 may be held together by suitable means including clips, screws and nails (not shown).
  • a frame 100 may be positioned in front of the front panel 110 to frame the artwork 130. In this arrangement ambient light can pass through the clear covering, strike the underlying artwork and reflect off a front surface of the artwork back through the clear covering and to the viewer. Some of the light also may be reflected off of the front surface of the clear covering back to the viewer without passing through the clear covering.
  • FIG. 2 illustrates an apparatus for mounting artwork 130 in a frame 100 and having external illumination 210.
  • the external illumination may be removable from the frame
  • Artwork 130 may be supported between the frame 100 and the back panel 140.
  • a transparent front panel (not shown) may be disposed between the artwork 130 and the frame 100 to protect the artwork 130, as described in FIG. 1.
  • the frame 100 may be positioned in front of the front panel (not shown) to frame the artwork 130.
  • a lighting fixture 210 may be mounted on the frame 100 to provide an illumination source for the artwork 130.
  • FIG. 3 illustrates an apparatus for mounting art having a light fixture 310.
  • the light fixture 310 may be disposed between the artwork 130 and the frame 100.
  • One or more light sources 312 may be disposed along one or more of the inner surfaces of the light fixture 310.
  • the light source(s) 312 radiate light over a front surface of the artwork 130. The radiated light that strikes the front surface of the artwork may be scattered away from the artwork towards a viewer.
  • FIG. 1. illustrates a mounting device for artwork.
  • FIG. 2. illustrates the mounting device of FIG. 1 with external illumination.
  • FIG. 3. illustrates a mounting device for artwork having integral illumination.
  • FIG. 4. illustrates an implementation of the lighted artwork holder in accordance with the present disclosure.
  • FIG. 5. illustrates another implementation of the present disclosure having reflectors.
  • FIG. 6. is a cross-sectional view of an implementation of a lighted artwork holder
  • FIG. 7. is a cross-sectional view of a lighted artwork holder having a second back panel. Like elements have the same number in the various figures.
  • the systems and techniques disclosed utilize reflected light to illuminate artwork. Some or all of the implementations of the disclosure have one or more of the following advantages. A reduction in glare by the use of reflected light to illuminate artwork. Using reflected light to add the dimensionality without introducing undesirable color shifts that may result from use of transmitted light. Some implementations provide for even distribution of light across the front surface of the artwork.
  • evanescent waves are light waves trapped at the surface of a smooth, transparent body. Placing a printed photograph in intimate contact with a transparent surface allows the photograph to interact with evanescent waves in a manner that results in light being forwardly scattered. The interaction of the photograph with the evanescent waves can allow for enhanced lighting on materials of arbitrary thickness or composition.
  • the lighting system disclosed also can preserve the color rendering properties of the artwork being displayed and provide enhanced dimensionality associated with backlighted artwork.
  • the disclosed lighting system can be provided by a light source placed against one or more of the sides of a front panel that covers the artwork.
  • the front panel can be made of transparent materials including glass, acrylic and plastic, so that the underlying artwork may be viewed through the front, or viewing, surface of the front panel.
  • the light source is placed along one or more sides that are perpendicular to both the viewing surface and the artwork being displayed.
  • the artwork or photograph and the back surface of the front panel can be in intimate contact for the side lighting to be scattered evenly off of the artwork and to the observer.
  • a back panel may be used to press the photograph against the back surface of the front panel. Unevenness of contact between the photograph and the front panel may lead to dim lighting or non-uniformity of lighting across the surface of the photograph. Factors that may result in these undesired lighting include deviations in the planarity of the front panel and the back panel used to press the photograph against the front panel and surface textures of the photograph.
  • FIG. 4 illustrates the illumination of artwork 130 in accordance with the present disclosure.
  • the artwork 130 is held between a back panel 440 and a front panel 410.
  • a compliant layer 420 is further disposed between the artwork 130 and the front panel 410.
  • the compliant layer 420 may be composed of a non-rigid, suitably transparent material.
  • a light source 412 can be located adjacent one or more edges of the front panel 410 that are perpendicular to the artwork 130. The light source 412 radiates light into the front panel 410 and then transmitted into the compliant layer 420.
  • a refractive index of the front panel 410 and the compliant layer 420 are equal. This relationship between the refractive indices of the compliant layer and the front panel can reduce light reflected at the interface between the front panel 410 and the compliant layer 420.
  • the compliant layer 420 can allow intimate optical contact between the artwork 130 and the front panel 410.
  • intimate contact When intimate contact is established, light that propagates inside the front panel 410 may interact with the artwork 130 in such a manner that light is scattered in the forward direction towards the observer.
  • the compliant layer 420 is separate and distinct from the front panel 410 and may thus be removed or replaced. In other implementations, the compliant layer 420 is adhered to the front panel 410.
  • the compliant film can be transparent and yield slightly under pressure.
  • a compliant film may be a separate piece or coated onto one side of the front panel.
  • a transparent silicone film may be applied to a sheet of acrylic, glass or polycarbonate to create the compliant layer.
  • Other soft silicones, latex, urethane, vinyl or epoxy materials that are transparent and non-rigid also can provide suitable compliant films.
  • semi-liquid materials such petroleum or silicone jellies or oils also may provide a compliant film.
  • the back plate should be sufficiently rigid to provide substantially uniform pressure to force the artwork into the compliant film.
  • the front panel is planar and the back panel will be slightly convex to better distribute force to the center of the artwork being displayed. This arrangement may help retain the center of the artwork in intimate contact with the compliant layer as pressure is applied to the back panel.
  • the front panel is convex and the back plate is planar.
  • both the front panel and the back panel are convex.
  • the front panel is preferably transparent and rigid. Suitable materials for the front panel includes glass, cast acrylic, extruded acrylic, polycarbonate and epoxy.
  • he light source may be any compact white light source including fluorescent lights, cold cathode fluorescent lights, incandescent lights, white LEDs, EL strips and combinations of two or more single color LEDs that can be adjusted to yield a metameric white light.
  • the light source can have an optical housing to increase the efficiency of light injection into the front panel.
  • Compact fluorescent tubes, EL strips and white LEDs may be particularly well suited as light sources.
  • the light source may include a linear strip of red, green and blue LEDs that create a metameric white light.
  • This light source may provide color rendering as the wavelengths of light emitted by the LEDs can be chosen to match the reflectance spectra of the dyes or inks used in the prints or artwork being displayed. Such a light source could be used to further enhance the dimensionality of artwork being displayed by providing superior color rendering and increasing the saturation of displayed colors. These LED light sources need not be limited to three colors. Additional wavelengths may be incorporated to further enhance the color rendering and saturation. As mentioned above, lighting efficiency can be increased by incorporating a reflector around the light source to direct substantially all the light into the front panel in such a manner that it is confined in the panel by internal reflection. Light sources may be positioned along one or more sides of the front panel. Lighting efficiency may also be improved by incorporating reflective coatings or layers on the sides of the ⁇ front panel without light sources.
  • using a combination of LEDs to produce metameric white light it may be desirable to allow adjustments to be made to the relative intensities of the different LEDs. This will allow changes to be made in the color temperature of the light source and in turn allows users of the lighting system to select a "mood" for lighting.
  • FIG. 5 illustrates an implementation of the assembly of a front panel 510, compliant layer 520 and light source 512.
  • the light source 512 is disposed along one edge of the front panel 510 and the compliant layer 520.
  • reflector elements 540 may be disposed along the sides of the front panel 510 and compliant layer 520 that do not have the light source 512.
  • the reflector elements can reflect light that would otherwise be lost out the sides of the front panel 510 back into the composite assembly of the front panel a 510 and the compliant layer 520, thereby increasing the efficiency of illumination.
  • light sources 512 may be disposed along more than one edge of the front panel 510 and the compliant layer 520.
  • a reflector element 540 may be disposed along any sides of the front panel 510 without a light source 512. Any material that acts as a predominantly specular reflector may be used for the reflector assembly 540. Examples if suitable materials include extended specular reflector (ESR) films and aluminized mylar.
  • ESR extended specular reflector
  • FIG. 6 illustrates a side view in cross-section of an edge of an artwork mounting system utilizing a chip on board (COB) light-emitting diode (LED) assembly as a light source.
  • LED chips 660 may be disposed along a circuit board 613.
  • the circuit board 613 may be made of a variety materials including FR4, aluminum or glass epoxy. Circuit boards made of materials with high thermal conductivity such as aluminum or copper may aid in the dissipation of heat generated by the LED chips 660.
  • the circuit board 613 may be positioned inside a reflector housing 650 that is positioned adjacent the front panel 610. This reflector housing 650 may include a recess that accepts the front panel 610.
  • the recess in the reflector housing 650 also may accept the combined assembly of a front panel 610 and a compliant layer 620.
  • Artwork 630 may be held in intimate contact with the compliant layer 620 by a back panel 640.
  • An inner surface 695 of the reflector housing 650 can be a predominantly specular reflector.
  • the shape of the inner surface 695 will be a conic section that will aid in focusing light into the front panel 610.
  • the inner surface 695 can have a parabolic shape.
  • the reflector may be used to direct light rays 690 emitted by the LED chips 660 to strike the edge of the front panel 610 in such a manner as to reduce reflection of light rays.
  • the reflector cavity 670 may be filled with air or with a transparent material with a refractive index that may be the same as that of the front panel 610.
  • Figure 7 illustrates a cross-sectional view of an implementation of the artwork lighting system having a second back panel 745.
  • This second back panel 745 is essentially planar.
  • a first back panel 740 may be convex towards the artwork 730.
  • the convex shape of the back panel 740 may enhance the evenness of pressure across the artwork into the compliant layer over a planar back panel. The evenness of pressure may reduce air bubbles between the artwork and the compliant.
  • the first back panel 740 will tend to become more planar as the second back panel 745 is pressed into the first back panel 740. In turn, the first back panel will press the artwork into the compliant layer 720. Air between the artwork 730 and the compliant layer may escape toward the compliant layer edges as the first back panel is flattening out. Air bubbles between the compliant layer 720 and the artwork 730 can result in areas of low illumination.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Planar Illumination Modules (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

Divers modes de réalisation de la présente invention concernent des systèmes et procédés d'illumination d'une oeuvre d'art. Dans un mode de réalisation, l'oeuvre d'art, telle qu'une photographie, est placée en étroit contact avec une couche souple transparente. Un panneau frontal transparent est placé sur la couche souple. Une source de lumière est placée le long d'un bord du panneau frontal et de la couche souple de manière que la lumière émise par la source de lumière pénètre dans le panneau frontal, puis dans la couche souple où la lumière est diffusée vers l'observateur.
EP05761751A 2004-06-18 2005-06-17 Dispositif de retenue pour l'illumination d'une oeuvre d'art Withdrawn EP1774499A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US58123004P 2004-06-18 2004-06-18
PCT/US2005/021600 WO2006009913A2 (fr) 2004-06-18 2005-06-17 Dispositif de retenue pour l'illumination d'une oeuvre d'art

Publications (2)

Publication Number Publication Date
EP1774499A2 true EP1774499A2 (fr) 2007-04-18
EP1774499A4 EP1774499A4 (fr) 2009-05-20

Family

ID=35785724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05761751A Withdrawn EP1774499A4 (fr) 2004-06-18 2005-06-17 Dispositif de retenue pour l'illumination d'une oeuvre d'art

Country Status (3)

Country Link
US (1) US20080163529A1 (fr)
EP (1) EP1774499A4 (fr)
WO (1) WO2006009913A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006050556B3 (de) * 2006-10-26 2008-02-21 Röschke, Rainer Verfahren zur Erhöhung der Farbintensität von Bildern
WO2008153528A1 (fr) 2007-06-14 2008-12-18 Avery Dennison Corporation Dispositif d'affichage graphique et d'informations éclairé
JP2012522260A (ja) * 2009-03-27 2012-09-20 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 表示装置の前面に配置する装置
AU2010266594A1 (en) * 2009-07-01 2012-02-23 Facesme Llc Lighting fixture and method for creating visual effects and method for creating a distorted image
CN102809837B (zh) * 2012-08-21 2015-09-23 深圳市华星光电技术有限公司 液晶模块及其前框构造
GB2542417B (en) * 2015-09-18 2020-01-22 Artech Nw Ltd Illuminable frame for mounting a display image, system and methods
US10820727B2 (en) * 2018-07-06 2020-11-03 Norion Michael Ubechel Methods and systems of an illuminated base mounted framing system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2223409A (en) * 1939-03-17 1940-12-03 Louis J Dixon Edge lighted sign
US2527657A (en) * 1944-09-26 1950-10-31 Standard Pressed Steel Co Lubricating system for refrigerator motor-compressors
US2524657A (en) * 1945-12-20 1950-10-03 Paul B Ford Lighting device
US2623313A (en) * 1948-06-14 1952-12-30 Paul E Fuchs Edge illuminated sign
US5499165A (en) * 1992-10-08 1996-03-12 Holmes, Jr.; Lawrence Transparent edge-lit lighting pane for displays
US5546687A (en) * 1995-02-27 1996-08-20 Iorfida; Paul Apparatus for displaying an illuminated image including light intensifier and method therefor
US5899012A (en) * 1995-04-17 1999-05-04 Crum; Robert W. Framed artwork display
US6447134B1 (en) * 1998-05-11 2002-09-10 Toyoda Gosei Co., Ltd. Planar light emitting device
US6305109B1 (en) * 1999-12-09 2001-10-23 Chi-Huang Lee Structure of signboard
US6561665B1 (en) * 2002-03-14 2003-05-13 Kim In-Chul Lighting signboard having a curved structure

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO2006009913A2 *

Also Published As

Publication number Publication date
US20080163529A1 (en) 2008-07-10
WO2006009913A2 (fr) 2006-01-26
WO2006009913A3 (fr) 2006-11-02
EP1774499A4 (fr) 2009-05-20

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