EP2054661A1 - Beleuchtungsvorrichtung mit einer lampe und einem reflektor - Google Patents
Beleuchtungsvorrichtung mit einer lampe und einem reflektorInfo
- Publication number
- EP2054661A1 EP2054661A1 EP07822266A EP07822266A EP2054661A1 EP 2054661 A1 EP2054661 A1 EP 2054661A1 EP 07822266 A EP07822266 A EP 07822266A EP 07822266 A EP07822266 A EP 07822266A EP 2054661 A1 EP2054661 A1 EP 2054661A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp
- lighting device
- reflector
- partially
- light
- 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- Withdrawn
Links
- 230000003287 optical effect Effects 0.000 claims description 18
- 239000011343 solid material Substances 0.000 claims description 17
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 238000010137 moulding (plastic) Methods 0.000 claims 1
- 230000007704 transition Effects 0.000 description 7
- 238000005286 illumination Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
-
- 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
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
-
- 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
- F21Y2113/00—Combination of light sources
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133604—Direct backlight with lamps
Definitions
- Lighting device with a lamp and a reflector
- the invention relates to a lighting device with a lamp and a reflector.
- the object is achieved by a lighting device having the features of claim 1.
- a lighting device comprises at least ⁇ a lamp and at least one reflector.
- a reflection surface of the reflector is formed at least in regions as a circle involute of the lamp. Due to the structural design of the reflector, a much smaller configuration can be made possible in comparison with conventional illumination devices with respect to the construction space.
- a very high luminance homogeneity can be achieved by this specific embodiment of the reflector, which corresponds at least to the light density homogeneity of conventional lighting devices. It is thus a particularly FLA surface design with very good homogeneity of the surface brightness for display backlighting and an attractive area light source of high radiation power be made possible.
- the lamp comprises a phosphor layer, and the reflection surface of the reflector is formed at least be ⁇ richly as a circle involute of the phosphor layer.
- the surface of each lamp is optically completely unwound on the reflection surface.
- the reflection surface of the reflector describes a part of an involute This is precisely limited, which is before Trains t ⁇ designed so that not the outer side of a bulb of the lamp, but an inner phosphor layer defines that figure.
- Resul did ⁇ enables a radiation guide which leads around consistently around the lamp, this is no Verlus ⁇ te caused by the lamp itself.
- the lamp is tubular.
- a fluorescent lamp can be seen ⁇ before having a tubular discharge vessel.
- the lamp is preferably substantially formed as an elongated rod, wherein in particular the Ent ⁇ discharge vessel of the discharge lamp has a straight lined ⁇ formed tubular shape.
- This embodiment comprises the lighting device with a highly efficient for a backlight lamp. The mogentician necessary for Lichtho- distances to scattering and reflecting elements are no longer required with such fluorescent lamps or at best only in the reduced dimensions required by the inventive Ausges ⁇ taltung of the lighting apparatus compared to the prior art.
- the lamps of the reflector are at least partially covered at a light exit ⁇ side of the lighting device by a light-transmissive element.
- the translucent element may preferably be a diffuser, which may be formed for example from a plurality of films.
- the diffuser preferably includes a spectral and / or polarizing filter ⁇ function have.
- this translucent ⁇ ge element is planar and executed as a display.
- the involute shape corresponds to a settlement of the lamp surface, in particular of the phosphor layer, wherein the portion of the lamp surface, which which eclip ⁇ is the light ⁇ permeable element, in particular the display Wandt is completely homogeneous projected on the front side of the display panel.
- the translucent element is angeord ⁇ net, that the overall height of the arrangement comprising the reflector ⁇ tor, the lamp and the light-transmissive element less than 1.5 times, in particular less than 1.3 times, in particular 1.26 , the diameter of the lamp is.
- the required reflector height and thus the height of the Be ⁇ lighting device is thus substantially smaller than in conventional lighting devices with corresponding lamps.
- the reflector width corresponds conceptually, in particular, exactly to the inner lamp circumference.
- the illuminated surface of the reflector has to ⁇ least the same luminance, uniformity and Strah ⁇ development intensity as the lamp surface itself on.
- ⁇ are achievable with particular of modern T16 lamps efficiencies of more than 33 cd / W and light outputs, for example, 100000 lm / m 2.
- the height is then only less than 23 mm.
- the reflection surface is formed at least in regions symmetrically to an axis through the starting point of the circle involute with the lamp.
- the entire reflection surface of the reflector is essentially as a circle involute lamp, insbesonde ⁇ re the lamp surface and preferably the luminous Fabric layer, which is arranged on an inner side of the Lampenenkol ⁇ bens formed.
- the reflector may be formed as Auflichtreflectktor.
- a spacing is formed between the reflecting surface of the reflector and the lamp, which is generally given by an air space.
- the reflector is formed as a solid material, in which the lamp is at least partially embedded.
- the reflector can be formed as a solid element.
- it can be provided that is formed as solid acrylic glass.
- it is then present ⁇ geous when a back of the reflector is metalized and constitutes the reflecting surface.
- a relatively small space between the outside of a lamp envelope of the lamp and the reflector material is ⁇ out forms.
- this very small space is filled with a liquid which is preferably highly transparent.
- silicone oil is contained in this narrow gap-like free space.
- the lamp is at least partially, in particular ⁇ sondere in the range of the lamp bulb, poured into the solid material and located immediately adjacent to the solid material.
- the direct contact of the lamp with the solid material also advantageously influences the light coupling and the light reflection.
- a highly transparent and strongly refractive medium is provided as the solid material, the reflector being formed by the surface thereof in part by loss-free total reflection.
- the lamp is arranged on the side facing away from the reflector and thus the side facing the light-permeable element by a relatively small distance to this light-transmissive element.
- this distance is less than 4 mm, in particular less than 3 mm and preferably 2 mm.
- the outside of the lamp is contacted directly with the light-transmissive element mechanically.
- a cooling effect of the lamp during operation can also be achieved, since the light-permeable element can serve for heat dissipation.
- the lamp can be operated in the maximum efficiency.
- the reflector may be formed, for example, of a highly reflective aluminum. Preferably, it is provided that such a reflector is inserted into a fixing element.
- This Fix istsele ⁇ ment is arranged on the back of the reflector and to Ein- Set of the fixing element shaped accordingly.
- the fixing element may be formed as a plastic molded part ⁇ , for example, as an injection molded part. An accurate fit and a dimensionally stable order of the reflector can be ensured. Due to the design of the fixing element made of synthetic material ⁇ about a relatively low weight element can also be provided.
- the reflector can also be formed at least partially made of plastic and have a reflective layer as a reflection surface.
- the reflector may also be designed as an injection molded part, whereby a weight reduction can also be achieved thereby.
- a reflective layer on such a plastic reflector for example, a metal surface may be provided. This can be applied for example by a galvanization process.
- the illumination ⁇ device comprises at least two lamps, which are preferably spaced from each other.
- Each of these Lam ⁇ pen is associated with its own reflector, which is at least partially formed as a circle involute the respective associated lamp.
- the at least two lamps are tubular and extend parallel to each other.
- the individual lamps associated reflectors can be provided as separate components. It However, it can also be provided that this plurality of reflectors is formed as a one-piece element.
- the mutually facing end regions of the reflectors are shorter in their overall height than the mutually remote end regions.
- the shape of the transitions between the individual reflectors represents a critical point and can be improved by this configuration.
- an optical element is arranged on the mutually facing end regions of the reflectors.
- the light reflections at these kriti ⁇ rule sites can be promoted by the effect that the homogeneity of the luminance between the individual, in particular arranged in parallel, individual reflectors increases. Color differences between the individual lamps are almost completely eliminated by a large mixture.
- a DBEF polarization film of the display can be saved by means of this embodiment with an optical element at the transition region. In a configuration without such an optical element, this is preferably provided in the transition region between the two reflectors, in particular when lamps CCFL (CoId Cathode Fluorescent Lamps) lamps are used.
- lamps CCFL CoId Cathode Fluorescent Lamps
- the optical element is preferably placed on a front side of the end regions.
- the front side is wider insbeson ⁇ formed faces the light-transmitting element of the lighting device and substantially paral- IeI to the extension of this light-transmissive member educated. As a result, a highly symmetrical design and arrangement of the optical element can be achieved.
- the optical element and the reflectors are arranged flush with one another at the adjoining areas. It proves to be particularly advantageous if the optical element is a prism.
- the prism is preferably arranged at the end regions of the reflectors such that a triangular or pyramidal attachment is formed in cross-section on these end regions.
- FIG. 1 is a schematic sectional view through a first embodiment of a lighting device according to the invention.
- FIG. 2 is a schematic sectional view of a second embodiment of a lighting device according to the invention
- FIG. Figure 3 is a schematic sectional view through a third embodiment of the invention shown SEN lighting device.
- Figure 4 is a schematic sectional view through a fourth embodiment of the invention shown SEN lighting device.
- Fig. 5 is a schematic sectional view of a fifth embodiment of a Be ⁇ lighting device according to the invention.
- a section through a first embodiment of a lighting device 1 is shown in a schematic manner.
- the lighting device 1 comprises egg NEN reflector 2 and a lamp 3.
- the lamp 3 is formed in the off ⁇ guide such as a fluorescent lamp and to ⁇ summarizes a rod-shaped elongate and tubular been ⁇ imaginary discharge vessel. This discharge vessel and so ⁇ with the lamp 3 extend perpendicular to the Figu- renebene.
- the Re ⁇ Flektor 2 in a corresponding manner perpendicular to the plane of the figure and comprises Wesent ⁇ union has a length corresponding to the length of the lamp 3, in particular ⁇ sondere of the lamp bulb 3 and of the discharge vessel.
- lighting device 1 comprises a light-transmissive element 4, which is designed as ados adosvorrich ⁇ device or as a display.
- This light-transmitting member 4 may ⁇ trained in the form of a diffuser det and comprise a plurality of films.
- the light-transmissive element 4 is substantially planar ⁇ formed and also extends perpendicular to the Figu ⁇ renebene.
- the reflector 2 has reflection surfaces 21 and 22 which are formed entirely in the exemplary embodiment substantially involute as a phosphor layer 31, which is integrally ⁇ introduced to the inside of the lamp bulb 3a of the lamp 3.
- the reflection surfaces 21 and 22 are symmetrical to an axis B by a starting point A of the circle involute on the lamp 3 originallybil ⁇ det.
- the lamp 3 and thus also the lamp bulb 3a at the start point A or contact point opposite side and thus the licht Strukturs ⁇ sigen element 4 facing side with a height hl spaced from this translucent element 4 is arranged ⁇ assigns.
- the distance hl et ⁇ wa is 2 mm.
- the lamp 3 or the lamp bulb 3 a is mechanically contacted directly with the light-transmitting element 4.
- End portions 2a and 2b of the reflector 2 are spaced approximately exporting ⁇ for example to the light transmitting ele ment ⁇ 4 are arranged.
- both end regions 2 a and 2 b are at substantially the same distance from this light-permeable element 4.
- the overall height h2 of the lighting device 1 according to FIG. 1 is less than 2.5 cm.
- the dimensions of the reflector 2, the lamp 3 and the light-transmitting element 4 are dimensioned so that the height h2 smaller as 1.3 times the diameter d of the lamp 3, in particular ⁇ special, the outer diameter d of the lamp envelope 3a, is. In the exemplary embodiment, this height h2 is only 1.26 times the outer diameter d of the lamp bulb 3a.
- a further embodiment of a Be ⁇ lighting device 1 ' is shown, which has at least two lamps 3 and 3', which are formed according to the embodiment in Fig. 1 and extend parallel to each other.
- the lighting device 1 ' comprises two reflectors 2 and 2', which are assigned to the respective lamps 3 and 3 '.
- the lamp bulb 3a and 3a 'of the lamps 3 and 3' are disposed so that they at the transmissive member 4 facing loading rich with their outer sides 32 and 32 'are arranged directly on an inner side of the light-transmissive element 4 ⁇ .
- the light-transmitting member 4 is formed as to ⁇ sammen sharede planar structure.
- the end portions opposite 2a and 2a 'of the re reflectors 2 and 2' are formed with a smaller distance to the light-transmitting member 4, when the Einan ⁇ the facing end portions 2b and 2b 'which in comparison ⁇ equal to a greater distance h3 have to lichtssenläs ⁇ sigen element 4.
- a screw connection to rail guides may be provided.
- any other me ⁇ chanical attachment can be provided.
- a latching or hanging in corresponding tab members may be provided.
- the fixing rails may be formed, for example, of plastic and thus be manufactured as an injection molded part. This can ei ⁇ ne relatively low-cost and low-cost production are made possible and a weight reduction of the whole system can be achieved.
- the two reflectors 2 and 2 ' are connected to one another at the mutually facing end regions 2b and 2b'.
- the two reflectors 2 and 2 ' are formed as an integral element.
- FIG. 3 is a further sectional view of an exemplary embodiment ⁇ a lighting device 1 '' shown.
- This lighting device 1 also comprises at least two lamps 3 and 3 'and corresponding reflectors 2 and 2', as provided in the lighting device 1 'according to FIG. 2.
- the clarity ⁇ nend is shown in the illustration of FIG. 3 is a partial section, in which neither the translucent Ele ⁇ ment 4 nor the lamp 3 and the reflector 2 are shown.
- nem transition region 6 at the end portions 2b and 2b 'facing each other designed as a prism opti ⁇ cal element 5 is arranged.
- the two end regions 2b and 2b ' are flattened on a side facing the light-permeable element 4, so that a front side 23' is formed, which extends substantially parallel to the light-permeable element 4.
- a front side 23' is formed, which extends substantially parallel to the light-permeable element 4.
- a correspondingly formed ⁇ Before the side of the end portion 2b of the optical element 5 is so placed that it at the connecting portions between the reflection surface 21' is disposed flush and the prism side 51st A corresponding flush arrangement is formed between the optical element 5 and the reflection surface 22 of the reflector 2.
- the optical element 5 designed as a prism is placed in such a way that it is oriented with a tip in the direction of the light-permeable element 4.
- the formed in the transition region 6 angle a of the prism can vary between 25 degrees and 60 degrees. This angular dimension of the angle ⁇ can thus be configured depending on the position and depending on the overall height h 2 of a lighting device 1. Depending on the setting of the angle a, the angle ⁇ is then specified.
- optical element 5 is glued to the corresponding front sides 23 '.
- the reflector 2 ' is inserted in a fixing element 7.
- This fixing element 7 is formed in the embodiment as an injection molded part and shaped so that the reflector 2 'can be used accurately.
- the reflector 2 ' is also made of plastic and formed as an injection molded part.
- the reflection surfaces 21 'and 22' are then preferably applied as a reflective layer on this plastic part.
- Example ⁇ example may in this case an electrodeposited metal layer as the reflection surface 21 'and 22' may be provided.
- FIG. 4 a further embodiment of a lighting device 1 '''is shown in a schematic sectional view.
- This lighting device 1 ''' comprises a plurality of lamps, of which only the lamps 3, 3' and 3 '' are specified by way of example.
- the zugeord ⁇ Neten reflectors 2, 2 'and 2''' are arranged to be spaced with their respective reflecting surfaces 21, 22, 21 ', 22', 21 '' 22 and 'to the outer sides 32, 32' and 32 '' are arranged.
- relatively large air spaces are formed between these outer sides 32, 32 'and 32''and the said reflection surfaces.
- FIG. 5 another embodiment of a lighting device 1 '''' is shown.
- the lighting device 1 '''' comprises a plurality of lamps, of which in turn the lamps 3 and 3 'are designated in more detail.
- the reflectors 2, 2 ' which are more representative of the other reflectors, formed of a solid material.
- the lamps 3 and 3 ' are embedded.
- the lamps 3 and 3 'are thus in which exporting ⁇ approximately example acrylic glass surrounded by the solid material as a highly transparent and highly refractive medium.
- the jeweili ⁇ ge lamp bulb of the lamps 3 and 3 'of the solid material is up to the light-transmitting member 4 facing area surrounded.
- a very small gap is formed, which is designed as a free space.
- This free space ⁇ is preferably formed fully circumferentially around the exterior of a LAM penkolbens a lamp 3 and 3 ', so that a minimum distance between the solid material and this Outside is formed.
- this space can be preferably ⁇ filled a highly transparent liquid.
- silicone oil can be introduced here.
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006052756A DE102006052756A1 (de) | 2006-11-08 | 2006-11-08 | Beleuchtungsvorrichtung mit einer Lampe und einem Reflek-tor |
| PCT/EP2007/061950 WO2008055912A1 (de) | 2006-11-08 | 2007-11-06 | Beleuchtungsvorrichtung mit einer lampe und einem reflektor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2054661A1 true EP2054661A1 (de) | 2009-05-06 |
Family
ID=39156082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP07822266A Withdrawn EP2054661A1 (de) | 2006-11-08 | 2007-11-06 | Beleuchtungsvorrichtung mit einer lampe und einem reflektor |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20100002427A1 (de) |
| EP (1) | EP2054661A1 (de) |
| JP (1) | JP2010509722A (de) |
| CN (1) | CN101535711B (de) |
| DE (1) | DE102006052756A1 (de) |
| WO (1) | WO2008055912A1 (de) |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE806001C (de) * | 1948-11-19 | 1951-06-11 | Hoerner Fa Eugen | Reflecktor fuer leuchtende Flaechen |
| US4843521A (en) * | 1988-03-21 | 1989-06-27 | Plofchan Fred A | Reflector with curved dual involute surfaces |
| US4897572A (en) * | 1988-03-21 | 1990-01-30 | Plofchan Fred A | Light tube with slidable electrodes |
| FR2677736B1 (fr) * | 1991-06-12 | 1994-11-25 | Baliozian Mardick | Dispositif d'eclairage a lampes tubulaires et reflecteur. |
| JPH0644812A (ja) * | 1992-02-14 | 1994-02-18 | Nasuka:Kk | 反射板と照明器具と照明装置 |
| JPH05323312A (ja) * | 1992-04-28 | 1993-12-07 | Nec Corp | 液晶ディスプレイ用バックライト |
| US5394317A (en) * | 1992-11-03 | 1995-02-28 | Grenga; John J. | Lamp reflector |
| US5567042A (en) * | 1994-05-27 | 1996-10-22 | Allen-Bradley Company, Inc. | Reflector for flat panel display backlight unit |
| US5618095A (en) * | 1995-04-04 | 1997-04-08 | Tosoh Corporation | Backlighting device |
| US6712481B2 (en) * | 1995-06-27 | 2004-03-30 | Solid State Opto Limited | Light emitting panel assemblies |
| JPH09198909A (ja) * | 1996-01-23 | 1997-07-31 | Seiko Epson Corp | 反射ミラーおよび照明装置および液晶表示装置 |
| US6190023B1 (en) * | 1997-04-07 | 2001-02-20 | Nsi Enterprises, Inc. | Sporting field illuminating lighting fixtures having improved light distribution |
| US5986728A (en) * | 1997-07-23 | 1999-11-16 | Litton Systems, Inc. | Optically enhance day/night liquid crystal display backlight with TIR lens and both light sources on same side of waveguide |
| US6244264B1 (en) * | 1999-06-09 | 2001-06-12 | Solar Enterprises, International, Llc | Non-imaging optical illumination system |
| US20030021110A1 (en) * | 2001-07-25 | 2003-01-30 | Noh Shi Youl | Fluorescent lamp |
| US7304418B2 (en) * | 2003-10-24 | 2007-12-04 | Seiko Epson Corporation | Light source apparatus with light-emitting chip which generates light and heat |
| WO2007105149A1 (en) * | 2006-03-15 | 2007-09-20 | Koninklijke Philips Electronics N.V. | Backlight reflector |
-
2006
- 2006-11-08 DE DE102006052756A patent/DE102006052756A1/de not_active Withdrawn
-
2007
- 2007-11-06 EP EP07822266A patent/EP2054661A1/de not_active Withdrawn
- 2007-11-06 JP JP2009535715A patent/JP2010509722A/ja active Pending
- 2007-11-06 WO PCT/EP2007/061950 patent/WO2008055912A1/de not_active Ceased
- 2007-11-06 US US12/514,259 patent/US20100002427A1/en not_active Abandoned
- 2007-11-06 CN CN2007800401062A patent/CN101535711B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2008055912A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100002427A1 (en) | 2010-01-07 |
| DE102006052756A1 (de) | 2008-05-15 |
| JP2010509722A (ja) | 2010-03-25 |
| WO2008055912A1 (de) | 2008-05-15 |
| CN101535711A (zh) | 2009-09-16 |
| CN101535711B (zh) | 2011-05-18 |
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