CN101273231B - Light box, light reflector for the same, and method for producing light reflector - Google Patents
Light box, light reflector for the same, and method for producing light reflector Download PDFInfo
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- CN101273231B CN101273231B CN200680035689.5A CN200680035689A CN101273231B CN 101273231 B CN101273231 B CN 101273231B CN 200680035689 A CN200680035689 A CN 200680035689A CN 101273231 B CN101273231 B CN 101273231B
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- 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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
- G02B19/0061—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED
- G02B19/0066—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a LED in the form of an LED array
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
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- 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
- G02F1/133603—Direct backlight with LEDs
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
Provided are a high quality light box in which unevenness of surface illumination intensity does not occur even when a light source having high directivity of light such as an LED is used, a light reflector for the light box, and a method for producing the light reflector. The light box (10) has containing recesses (20) each formed in a reverse polygonal pyramid shape to surround an LED (16) which is inserted in an insertion hole (22) formed in the bottom of each containing recess (20). The top (24) of each containing recess (20) is connected to the top (24) of an adjacent containing recess (20), and a light reflector (18) is formed such that the top (24) of each containing recess (20) is located below or at a position that equally divides the distance from the light emitting section (28) to a light diffusion plate (26) but is located above the light emitting section (28) of the LED (16).
Description
Technical field
Light emitting diode) the present invention relates to use LED (Light Emitting Diode: the internal irradiation type lamp box of point source of light and the manufacture method that is used for the light reflecting board and the light reflecting board of this lamp box such as, in more detail, relate to applicable to the lamp box of the backlight of electricity decorations signboard, internal irradiation type sign, liquid crystal indicator, ligthing paraphernalia etc. and the manufacture method of light reflecting board and light reflecting board thereof.
Background technology
In the past, the internal irradiation type lamp box used the straight tube-like light source of fluorescent lamp or cold-cathode tube etc.But, fluorescent lamp is short service life, for example with regard to the fluorescent lamp of the general straight tube-like of 40W, its life-span is about 12000 hours, be installed on the occasion of the lamp box of the convenience store of eminence or the signboard at station etc., when disconnecting, each fluorescent lamp how also can't carry out the replacing operation of fluorescent lamp, thus carry out the replacing of fluorescent lamp annually together, but there is the problem that must carry out night such as high-rise working etc.
In addition, with regard to the straight-down negative lamp box in the liquid crystal indicator, service life is long and be cold-cathode tube about 50000 hours.But cold-cathode tube becomes time of 1/2 as the life-span with brightness, exist through after 50000 hours then brightness become 1/2 problem.And therefore cold-cathode tube also exists the problem that causes the fault of following electric leakage easily owing to will apply the high voltage use of 1000V.
So, recently, the internal irradiation type lamp box (for example with reference to patent documentation 1) as light source with LED has been proposed.Should be with LED be the lamp box of light source, by a plurality of LED of configuration on plane light reflecting board, and have the plastic plate of light transmission and constitute in the place ahead of LED and light reflection surface configuration.If as mentioned above LED is used as light source, the brightness in the time of then can reducing through 50000 hours than the situation of having used cold-cathode tube descends.
Patent documentation 1: the spy opens flat 10-83148 communique.
But, LED is because the directive property of the light that is radiated is strong, therefore if on plane light reflection surface, dispose LED, then exist in the dark place that direct bright place that arrives of the light that produces LED on the lamp box surface and light can not arrive, and uneven problem takes place in the surperficial illumination of lamp box.
Summary of the invention
The present invention In view of the foregoing makes, and a kind of under the situation of the strong light source of the light directive property of having used LED and so on even purpose is to provide, the manufacture method of uneven lamp box and light reflecting board thereof and light reflecting board also can not take place surperficial illumination.
For achieving the above object, lamp box of the present invention is characterised in that: possess distributing board, be arranged in a plurality of point source of lights on the above-mentioned distributing board, be configured in the light reflecting board on every side of above-mentioned point source of light, and the light diffusion surface plate of the light transmission that relatively disposes with above-mentioned light reflecting board, above-mentioned light reflecting board have surround above-mentioned a plurality of point source of lights each and form a plurality of recesses that hold of being inverted polygonal cone-shaped, above-mentioned point source of light inserted respectively to lead to be formed in the above-mentioned inserting hole that holds concave bottom, and above-mentioned a plurality of top of recess that holds is connected with the top that holds recess of adjacency separately, and the above-mentioned top that holds recess is positioned at illuminating part from above-mentioned point source of light below the point of bisection of the distance of above-mentioned light diffusion surface plate and the position more than the illuminating part of above-mentioned point source of light.
In the present invention, above-mentioned point source of light LED preferably.
Be preferably in and dispose light diffuse reflector between above-mentioned light reflecting board and the above-mentioned light diffusion surface plate with a plurality of through holes.
The light diffuse reflectance of the visible light on the two sides of above-mentioned smooth diffuse reflector preferably all is more than 90%.
Above-mentioned light reflecting board and light diffuse reflector are that the film or the thin slice of the thermoplastic resin of the fine bubble below the 50 μ m or pore more than the light wavelength constitutes by have mean air bubble diameter in inside preferably.
The film of above-mentioned thermoplastic resin or thin slice preferably by thickness be that 200～2000 μ m, proportion are 0.1～0.7, the light diffuse reflectance of visible light is that thermoplastic polyester foams more than 90% constitute.
The preferably full light transmittance of above-mentioned light diffusion surface plate is 20～50%, reflectivity is 50～80%.
The light reflecting board of lamp box of the present invention is characterised in that, have surround a plurality of point source of lights each and form a plurality of recesses that hold of being inverted quadrangle cone shape, be formed with the inserting hole that is used for inserting logical point source of light respectively in these bottoms that hold recess, and above-mentioned a plurality of top of recess that holds is connected with the top that holds recess of adjacency separately, has: have the mountain portion that forms above-mentioned two the mutual relative faces that hold recess and have first parts of the opening of chevron in above-mentioned mountain portion; Second parts of the chevron of inserting with the mode that runs through above-mentioned opening with linearity form the above-mentioned recess that holds thereby insert above-mentioned second parts by the opening at above-mentioned first parts.
The manufacture method of the light reflecting board of lamp box of the present invention is characterised in that, the light reflecting board of above-mentioned lamp box have surround a plurality of point source of lights each and form a plurality of recesses that hold of being inverted quadrangle cone shape, be formed with the inserting hole that is used for inserting logical point source of light respectively in these bottoms that hold recess, and above-mentioned a plurality of top of recess that holds is connected with the top that holds recess of adjacency separately, formation has first parts that form above-mentioned 2 the mutual relative mountain portion that holds recess and have the opening of chevron in above-mentioned mountain portion, formation runs through second parts of the chevron that the mode of above-mentioned opening inserts with linearity, thereby forms the above-mentioned recess that holds by insert above-mentioned second parts in the opening of above-mentioned first parts.
In the opening of above-mentioned first parts, insert before above-mentioned second parts, preferably make the angle of drift angle of mountain portion of above-mentioned first parts littler than pre-set angle, and above-mentioned first parts and second parts preferably carry out behind the stamping-out crooked and form to film or thin slice respectively.
The present invention has following effect.
According to lamp box of the present invention, because the recess that holds of light reflecting board forms the polygonal cone-shaped of inversion, therefore the light that is received after recess reflects reflects effectively at the wall that holds recess, the trimmed book that arrives to arrive also morely on the space between the less light source, even, obtain to realize the slimming of lamp box and can prevent that surperficial illumination from inhomogeneous etc. extremely good effect taking place so used under the situation of the strong light source of light directive property.Because the top that holds recess is positioned at illuminating part from point source of light below the point of bisection of the distance of light diffusion surface plate, therefore the part that the light that obtains at the top that holds recess blocking when too high point source of light arrives the light diffusion surface plate becomes many, thereby can prevent from not to be blocked and the part concentrated becomes the extremely good effect of the too bright inhomogeneous grade of light from a plurality of light that hold the point source of light of recess.At point source of light is the occasion of LED, and light is surface launching forward only, and in lamp box of the present invention, the relevant and transmission of the full light transmittance of the light of having launched light diffusion surface plate in front and this light diffusion surface plate, and remaining wide causing is reflected.
In addition, according to the light reflecting board of lamp box of the present invention, owing to have: have 2 the mutual relative mountain portion that recess is held in formation, possess first parts of opening in mountain portion with chevron; Second parts of the chevron of inserting with the mode that runs through above-mentioned opening with linearity, thereby and insert second parts by opening and form and to hold recess at above-mentioned first parts, therefore obtain and can will form the extremely good effect that be inverted quadrangle cone shape a plurality of hold that recess forms easily etc.
And, manufacture method according to the light reflecting board of lamp box of the present invention, hold 2 the mutual relative mountain portion of recess and possess first parts of opening in mountain portion and run through second parts of the chevron that the mode of opening inserts with linearity owing to form to have to form with chevron, thereby form and hold recess by in the opening of first parts, inserting second parts, therefore obtain to form easily the extremely good effect of the light reflecting board etc. of lamp box of the present invention.And, by in the opening of first parts, inserting before second parts, make the angle of drift angle of mountain portion of first parts littler, thereby obtain inserting easily the extremely good effect of second parts etc. at the opening of first parts than pre-set angle.Also have, by with each first parts and second parts crooked formation after film or thin slice are carried out stamping-out, obtain to obtain easilier the extremely good effect of the light reflecting board etc. of lamp box of the present invention.
Description of drawings
Fig. 1 is the pattern exploded perspective view of major part of an embodiment of lamp box of the present invention.
Fig. 2 is the pattern cutaway view of the major part of Fig. 1.
Fig. 3 is the pattern vertical view of major part of embodiment of the light reflecting board of expression lamp box of the present invention.
Fig. 4 is the amplification view along the A-A line of Fig. 3.
Fig. 5 is the amplification view along the B-B line of Fig. 3.
Fig. 6 is the pattern exploded view of Fig. 3.
Fig. 7 be the embodiment of the manufacture method of the expression light reflecting board that utilizes lamp box of the present invention form film or thin slice are carried out first parts behind the stamping-out with the vertical view of an example of middle product.
Fig. 8 be the embodiment of the manufacture method of the expression light reflecting board that utilizes lamp box of the present invention form film or thin slice are carried out second parts behind the stamping-out with the vertical view of an example of middle product.
The specific embodiment
Below, by embodiment explanation the present invention shown in the drawings.Fig. 1 and Fig. 2 are the figure of an embodiment of expression lamp box of the present invention, and Fig. 1 is the pattern exploded perspective view of major part, and Fig. 2 is the pattern cutaway view of major part.
As shown in Figures 1 and 2, the lamp box 10 of present embodiment has the quadrangle casing 12 of upper opening.On the bottom of the inside of this casing 12, dispose tabular distributing board 14.And, a plurality of lamp formula LED (point source of light) 16 are installed above the distributing board 14.These LED16 are arranged in rectangular on distributing board 14.And, on distributing board 14, dispose and be used to reflect from the light of LED16 or by the light reflecting board 18 of the light of light diffusion surface plate 26 or light diffuse reflector (light Expansion scattered reflection plate) 34 reflections.
Light reflecting board 18 has: surround the polygonal cone-shaped of inversion around each of a plurality of LED16, form a plurality of recesses 20 that hold of being inverted quadrangle cone shape in present embodiment; And the inserting hole 22 that can freely insert logical LED16 that is formed at this bottom centre that holds recess 20.And each top 24 that respectively holds recess 20 is configured to be positioned at same plane, and the top 24 that respectively holds recess 20 is connected with the top that holds recess 20 24 of adjacency and forms one.In addition, holding recess and be not limited to be inverted quadrangle cone shape, also can be that other are inverted polygonal cone-shaped, for example is inverted hexagonal pyramidal shape etc.
In more detail, shown in Fig. 2 was detailed, the mid portion each other that light reflecting board 18 forms the LED16 of adjacency became highly the highest top 24 and forms highly minimum triangle chevron shape in the formation position of inserting hole 22.And, in inserting hole 22, inserting logical LED16, LED16 is outstanding to the upper face side of a side opposite with distributing board 14 of holding recess 20.In addition, as holding recess 20, the top that holds recess 20 24 of adjacency is connected to each other to linearity and is preventing that surperficial uneven illumination is very important aspect even.
Above above-mentioned light reflecting board 18, dispose the light diffusion surface plate 26 of light transmission.This light diffusion surface plate 26 relatively is configured on the peristome of casing 12 with light reflecting board 18.
In addition, as shown in Figure 2, the top 24 that holds recess 20 is positioned at point of bisection and the illuminating part of the LED16 position more than 28 below 30 from the illuminating part 28 of LED16 to the distance of light diffusion surface plate 26.
In the lamp box 10 of present embodiment,, and dispose light reflecting board 18 from opening the mode that appears at the inserting hole 22 that forms on the bottom that holds recess 20 of being inverted polygonal cone-shaped with each LED16 in the mode in the space between each LED16 of landfill.Therefore, LED16 with from the inserting hole 22 that respectively holds recess 20 bottoms to the pre-configured distribution of the mode that face side appears on distributing board 14.Because LED16 appears from inserting hole 22, and then the light that sends from LED16 is towards light diffusion surface plate 26.
Based in order to bleed off, the gap of the distance more than the 1mm can be set between the inserting hole 22 of light reflecting board 18 and LED16 from the heat of generations such as LED16 or in order to relax the purpose of different position skews that cause because of the coefficient of thermal expansion of distributing board 14 and light reflecting board 18 etc.
In addition, in the present embodiment, as shown in Figure 2, between light reflecting board 18 and light diffusion surface plate 26, has the light diffuse reflector 34 of a plurality of through holes according to the needs configuration of design idea etc.
In the lamp box 10 of present embodiment, the strong light of the directive property of sending from the point source of light LED16 as light source arrives light diffusion surface plate 26, then with a part of relatively transmission of full light transmittance, and remaining light reflection and return inside.Turn back to inner light and be set at light reflecting board diffuse reflection between the light source more than 90%, arrive light diffusion surface plate 26 once more.At this moment, because the top 24 that holds recess 20 is positioned at illuminating part 28 from LED16 below the point of bisection of the distance of light diffusion surface plate 26, thereby the part that the too high light that then block LED16 in the top 24 that holds recess 20 arrive light diffusion surface plate 26 is too much, prevent from a plurality of light that hold the LED16 of recess 20 be not blocked and the part concentrated too bright to constitute light inhomogeneous.
In addition, the light that sends from light source, then directive property is strong owing to the little light of the angle of visual field, is not therefore reflected by light reflecting board 18 fully and direct directive light diffusion surface plate 26 directions, and great majority also are not reflected and direct directive light diffusion surface plate 26 directions under the big situation of the angle of visual field.At this moment, full light transmittance height and the low occasion of diffusion transmissivity in light diffusion surface plate 26, from the light of light source in less diffusion and of light diffusion surface plate 26 by light diffusion surface plate 26, the dark place that bright place that the arrival of meeting formation light is passed through on light diffusion surface plate 26 and light do not reach causes producing inhomogeneous.Even if under the situation of the big light source of the angle of visual field,, therefore still produce inhomogeneous because center brightness height and end brightness are low.
The light reflecting board 18 of present embodiment, sent and arrived from light source light diffusion surface plate 26 light more than 50% once more to inner lateral reflection, be arranged on light reflecting board 18 reflection in the space between the light source and the light that returns arrived light diffusion surface plate 26 once more by diffuse reflection more than 90%.And, the light reflecting board 18 of present embodiment constitute at spatial light reflecting plate 18 height that do not dispose light source and near light source low alms bowl shape.Therefore, by the higher part usable reflection of the light after light diffusion surface plate 26 reflection at light reflecting board 18, can arrive the light diffusion surface plate 26 in the space between the less light source of the light that arrives originally, it is inhomogeneous to reduce light morely.
In general, if lamp box 10 carries out slimming, then the distance from illuminating part 28 to light diffusion surface plate 26 shortens, so the inhomogeneous problem that becomes easily of light.So, in the present invention, between the top 24 of light reflecting board 18 and light diffusion surface plate 26, have a plurality of through holes, and the light diffuse reflector 34 that reflects on the two sides be set, thereby can realize further slimming.
The diffuse reflectance of expecting the visible light in the two sides of above-mentioned smooth diffuse reflector 34 all is more than 90%.If the two-sided diffuse reflectance (light Expansion scattered reflection rate) of light diffuse reflector 34 all is more than 90%, then the diffuse effect of the light of light source improves.
In addition, expect that above-mentioned smooth diffuse reflector 34 has a plurality of through holes.The shape of through hole does not limit especially, can suitably select various polygons, star, ellipse etc., but general through hole be shaped as circle, and preferably its diameter is 0.3～3mm.Circular then it is shaped easily if the shape of through hole is done, but if the not enough 0.3mm of its diameter then can not use general method for punching, forms to become difficulty and productivity ratio is descended, and produces unfavorable on the cost.In addition, all through holes both can be identical diameters, also can be that different diameters mixes.
The percent opening of above-mentioned smooth diffuse reflector 34 is 20～40% of light diffuse reflector 34 areas, preferably 25～35%.But, do not exist directly over the illuminating part of light source the mode of through hole on light diffuse reflector 34, to form the occasion of through hole, promptly formed the occasion of through hole, percent opening preferably 50～90% in mode with most of direct sunshines of blocking light source.
In the occasion of using LED16 as light source, because the directive property of not sharing the same light with tubular light source is strong, it is even therefore to be easy to generate surperficial uneven illumination.Especially, inhomogeneous in the short as easy as rolling off a log generation of occasion of the distance from illuminating part 28 to light diffusion surface plate 26.So in the present invention, by using above-mentioned smooth diffuse reflector 34, the direct sunshine that can reduce light source arrives the ratio of light diffusion surface plate 26.
That is, a part of light that sends from the illuminating part 28 of light source, by the through hole of light diffuse reflector 34 by and arrive the back side of light diffusion surface plate 26, remaining light contact with light diffuse reflector 34 once also to reflect and returns to light source side.Thereby this is reflected also directive light diffuse reflector 34 sides once more by the light that 34 reflections of light diffuse reflector are returned by light reflecting board 18.And the light that the through hole by light diffuse reflector 34 has arrived diffusing surface plate 26 and the relevant part of full light transmittance of light diffusion surface plate 26 are to surperficial transmission, and remaining light returns to light diffuse reflector 34 sides once more.By carrying out so repeatedly, it is all that the light that directive property is strong spreads all over the surface of light diffusion surface plate 34, can make that light is inhomogeneous not to constitute problem in practicality.
Therefore, in the occasion of making the structure that is provided with light diffuse reflector 34, can be with the unit that for the time being to light source side returns and make its diffuse reflection towards the light of light diffusion surface plate 26 with light diffuse reflector 34 from light source, be arranged on to the two-stage light that directive property is strong when changing into diffused light again towards face side.Thus, can easier realization slimming.
In the present invention, do not limit the kind, shape of point source of light etc. especially, can from bullet cut LED, surface mounting LED etc., suitably select.In addition, can be red, green, blue, Huang, white any one as illuminant colour.The angle of visual field does not limit especially yet, but preferably 50～140 °.And, the brightness of light source since with make power consumption relevant, so can suitably select according to situation.Also have, as being contained in a quantity of holding the point source of light in the recess 20, the structure of a point source of light of the illuminant colour that the picture configuration is white in color, perhaps configuration take on a red color respectively, the structure of three point source of lights of the illuminant colour of blue, green these three kinds of colors etc. like that, it also can be a plurality of both can being one.
In the present invention, light reflecting board 18 and light diffuse reflector 34 are that the film or the thin slice of the thermoplastic resin of the micro air bubble below the 50 μ m or pore more than the light wavelength forms by have mean air bubble diameter in inside preferably.
As the film of above-mentioned thermoplastic resin or the material of thin slice, for example can enumerate polyethylene, polypropylene, polystyrene, polyvinyl chloride, PCB, PET, resins for universal use such as polyvinylcarbazole, Merlon, the polybutene terephthalate, PEN, polyamide, poly-acetal, polyphenylene oxide, ultra-high molecular weight polyethylene, polysulfones, polyether sulfone, polyphenylene sulfide, the polyene propyl ester, polyamidoimide, PEI, polyether-ether-ketone, polyimides, polytetrafluoroethylene (PTFE), liquid crystal polymer, engineering plastics such as fluororesin, perhaps their copolymer or mixture etc.Wherein, owing to hear resistance, resistance to impact etc. are good, and preferably use polyester, polyphenylene sulfide, polypropylene, cyclopolyolefin.And, in above-mentioned thermoplastic resin, can suitably add antioxidant, ultraviolet screener, lubricant, pigment, hardening agent etc.In addition, also can apply the overlay that contains these additives forms.
More particularly, example as the film or the thin slice of above-mentioned thermoplastic resin, can use and make after carbonic acid under high pressure is impregnated in the extruding plate of thermoplastic polyester, heat make its foaming thin slice promptly, inner bubble diameter is that the following polyester of 50 μ m is foam piece (for example, The Furakawa Electric Co., Ltd. make MCPET (registration mark)).In addition, similarly can use inner bubble diameter is that the following cyclopolyolefin of 50 μ m is a foam piece.
In addition, as other preferred example of the material that forms light reflecting board 18 and light diffuse reflector 34, can enumerate the film of the thermoplastic resin that contains filler or thin slice promptly, be the film or the thin slice of the core thermoplastic resin that forms a plurality of spaces with the filler.This occasion, in above-mentioned film or thin slice, film or thin slice that expectation contains the thermoplastic resin of filler are not extension film or the thin slices that contains filler by shaping, and with this not extension film or thin slice extend, thereby be porous extension film or thin slice that core forms a plurality of spaces with the filler.
The thickness of light reflecting board 18 and light diffuse reflector 34 is 200～2000 μ m preferably.The thickness of light reflecting board 18 then has rigidity as if the scope at 200～2000 μ m, and light is also few to the leakage at the light reflecting board back side.
The proportion of light reflecting board 18 and light diffuse reflector 34 preferably 0.1～0.7.If the proportion of light reflecting board 18 surpasses 0.7, even then satisfied other necessary conditions, also the transparence owing to light reflecting board 18 makes light become many to the leakage at the light reflecting board back side, so light loss becomes big.
The reflectivity of the visible light of light reflecting board 18 and light diffuse reflector 34 is preferably more than 90%.If the reflectivity of the visible light of light reflecting board 18 and light diffuse reflector 34 is more than 90%, then the diffuse effect of the light of light source improves.In addition, the diffuse reflectance of visible light in the present invention is meant the ratio of diffuse reflection bundle to the incident beam of light, also be meant and utilize self-recording spectrophotometer to measure with the wavelength of 50nm, with the diffuse reflectance of the blank of the micropowder that solidified barium sulfate as 100%, and the numerical value of obtaining as its relative value.As self-recording spectrophotometer, for example can use UV-3100PC (trade name that Shimadzu Seisakusho Ltd. makes).
In the present invention, as light diffusion surface plate 26, be fit to using full light transmittance is that 20～50% scope and reflectivity are the material of 50～80% scopes, for example uses third rare resin plate, polycarbonate plate, glass fabric, Corvic sheet etc.If full light transmittance is in 20～50% scopes, then the amount for the required light source of the brightness that obtains the light diffusion surface plate can not become too much, and, can not cause transmission to cross the strong light of directive property of multiple light courcess.At light source is under the situation of LED16, and the brightness of led light source is high more, and the angle of visual field is more little, wishes that more the full light transmittance of light diffusion surface plate 26 diminishes in above-mentioned scope.In addition, full light transmittance is the value of obtaining according to JIS K 7105-1981.
Embodiment
Below, by embodiment, specify the present invention.And the present invention is not limited thereto.
Fig. 1, lamp box 10 shown in Figure 2 have been made.But, light diffuse reflector 34 is not set.Specifically, the bottom of the casing 12 of opening is provided with distributing board 14 in front, on this distributing board 14 that a plurality of light sources are rectangular uniformly-spaced to be arranged to respectively on longitudinal direction and transverse direction towards the mode of opening with its illuminating part 28, and be provided with light reflecting board 18 in the mode in the space between these light sources of landfill.Light reflecting board 18 be inverted quadrangle cone shape hold recess 20 usefulness tops 24 in length and breadth continuously and the shape that connects at the above-mentioned bottom formation inserting hole 22 that holds recess 20, appears light source from this inserting hole 22.And, be provided with the light diffusion surface plate 26 of light transmission at the opening portion of casing 12.Above-mentioned casing 12 is of a size of vertical 323mm, horizontal 903mm, dark 90mm, and distributing board 14 is of a size of vertical 300mm, horizontal 900mm.In addition, in this example, the top 24 that holds recess 20 is positioned at illuminating part 28 from light source below the point of bisection of the distance of light diffusion surface plate 26 and the position more than the illuminating part of point source of light.
As light source, use the LED16 of the white and 50 ° of the angles of visual field, brightness 2500mcd.The current value of each LED16 is 21mA when DC15V.The diameter of LED16 is 5mm.These LED16 with 30mm at interval on distributing board 14 with uniformly-spaced configuration.LED16 has used 300 altogether with horizontal 30 row, vertical 10 the rectangular of row.
Light diffusion surface plate 26 has been used milky third rare resin plate (Mitsubishi Rayon Co., Ltd, trade name ア Network リ ラ イ ト, color number #430) of vertical 323mm, horizontal 903mm, thickness 2mm.The full light transmittance of this light diffusion surface plate 26 is 40%, and reflectivity is 60%.
Embodiment 2
The degree of depth of casing 12 is made 35mm.Used the surface mounting LED 16 of white and 110 ° of the angles of visual field, brightness 740mcd as light source.The current value of each LED16 is 17mA when DC24V.LED16 is of a size of 3 * 2 * 1.2mm.Distance from the illuminating part 28 of LED16 to light diffusion surface plate 26 is set at 25mm.The degree of depth of holding recess 20 of light reflecting board 18 is 10mm, and external dimensions is vertical 300mm, horizontal 900mm, height 11mm.Having formed width between the inserting hole 22 of LED16 and light reflecting board 18 is the gap of 1.7～2.5mm.Light diffusion surface plate 26 has been used milky third rare resin plate (Mitsubishi Rayon Co., Ltd, trade name ア Network リ ラ イ ト, color number #430) of vertical 323mm, horizontal 903mm, thickness 3mm.The full light transmittance of this light diffusion surface plate 26 is 30%, and reflectivity is 70%.About other structures, formed the lamp box (not shown) identical with embodiment 1.
Comparative example 1
The size of holding recess of light reflecting board is as follows, top is vertical 30mm * horizontal 30mm, the bottom is vertical 10mm * horizontal 10mm, the degree of depth is 65mm, the diameter of inserting hole is 7mm, and the external dimensions of light reflecting board is vertical 300mm, horizontal 900mm, height 66mm, and the spacing of inserting hole 22 is 30mm, in addition, formed the lamp box (not shown) identical with embodiment 1.In this comparative example 1, the top that holds recess is not positioned at illuminating part from light source below the point of bisection of the distance of light diffusion surface plate and on the position more than the illuminating part of point source of light, and the top that holds recess is positioned on the too high position.
Comparative example 2
The concave depth of holding of light reflecting board is 18mm, and the external dimensions of light reflecting board is vertical 300mm, horizontal 900mm, height 19mm, in addition makes similarly to Example 1 and forms lamp box (not shown).In this comparative example 2, the top that holds recess is not positioned at illuminating part from light source below the point of bisection of the distance of light diffusion surface plate and on the position more than the illuminating part of point source of light, and the top that holds recess is positioned on the too high position.
Comparative example 3
Except not using light reflecting board, make forming lamp box (not shown) similarly to Example 1.
Below, carry out the evaluation of the lamp box of the lamp box 10 of embodiment 1,2 and comparative example 1,2,3 by following method.In this was estimated, the light source igniting with the lamp box of the lamp box 10 of embodiment 1,2 and comparative example 1,2,3 made the light accepting part of illumination photometer directly contact the illumination that light diffusion surface plate 26 has been measured 7 positions.As the illumination photometry device, used Yokogawa M﹠amp; The general AA level illumination photometer (model name 51002) that C society makes.Go up on the part that does not have LED16 that reaches 4 adjacent LED16 centers in order to measure LED16,7 places that locate on the light diffusion surface plate 26 are set at the following position A～G of the matrix of LED16.Evaluation result is illustrated in the table 1.
A:3 row-3 row
B: Next 4 center (15 row-3 row, 15 row-4 row, 16 row-3 row, 16 row-4 row)
C:28 row-3 row
D: next 4 center (15 row-5 row, 15 row-6 row, 16 row-5 row, 16 row-6 row)
E:3 row-8 row
F: Next 4 center (15 row-7 row, 15-8 is capable, 16 row-7 row, 16 row-8 row)
G:28 row-8 row
Table 1
As shown in Table 1, in embodiment 1,2, can be clear and definite: the illumination fluctuation on all locating be little, and surperficial illumination does not exist in practical the inhomogeneous of formation problem that go up.Even promptly, make to make and also uneven high quality of products can not take place with the strong light source of light directive property surface illumination.On the other hand, in comparative example 1,2, A, C, E, G become clear, and do not have locational B, D, the F deepening of LED, and it is even that surperficial uneven illumination has taken place.And in comparative example 3, illumination is that about 1/2 comparisons are dark, and it is even that surperficial uneven illumination has also taken place.
Fig. 3 to Fig. 6 represents the embodiment of the light reflecting board of lamp box of the present invention, and Fig. 3 is the pattern vertical view, and Fig. 4 is the amplification view along the A-A line of Fig. 3, and Fig. 5 is the amplification view along the B-B line of Fig. 3, and Fig. 6 is the exploded perspective view of Fig. 3.In addition, the structure about identical or suitable with the light reflecting board 18 of above-mentioned embodiment has marked identical symbol in the accompanying drawings and has omitted its explanation.
The light reflecting board of the lamp box of present embodiment (below, abbreviate " light reflecting board " as) 51, for example clear light reflecting board that can be used for the lamp box 10 of above-mentioned present embodiment.
As shown in Figure 3, the light reflecting board 51 of present embodiment has to be arranged in and holds recess 20 at rectangular total 20 places of horizontal 4 row shown in vertical 5 row shown in the above-below direction of mutually orthogonal Fig. 3 and the left and right directions of Fig. 3.
To shown in Figure 5, the above-mentioned recess 20 that respectively holds forms the inversion quadrangle cone shape as Fig. 3, in detail, forms with the bottom and is the inversion quadrangle cone shape that foursquare mode cuts head.That is, respectively hold 4 trapezoidal inclined planes 54 of inversion that recess 20 has the bottom 53 that forms plane square and extends obliquely upward from the end margin of this bottom 53.
Be formed with the inserting hole 22 of planar rondure at the above-mentioned center that holds the bottom 53 of recess 20, in this inserting hole 22, freely insert logical above-mentioned LED (symbol 16 of Fig. 1).In addition,, get final product, can from different shapes such as ellipse, polygon, select so long as can insert the shape of logical LED as the shape of inserting hole 22.
Above-mentioned each top 24 that respectively holds recess 20 is configured to be positioned at same plane, and the top 24 that respectively holds recess 20 is connected with the top that holds recess 20 24 of adjacency.
In addition, in the present embodiment, be provided with illusory (ダ ミ one) at the two ends that hold recess 20 (upper end and lower end) of vertically arranging and hold recess 52.These are illusory to hold recess 52 and has 3 inclined planes 55 that hold that recess 20 is connected and bottom 53 with adjacency.
As Fig. 3 to shown in Figure 6, the light reflecting board 51 of present embodiment by first parts 61 and a plurality of be that 5 second parts 62 form in the present embodiment.
As shown in Figure 6, first parts 61 have that two mutual relative faces of recess 20 are respectively held in formation, the mountain portion 56 of vertically long (can form 42 illusory length of holding recess 52 holding recess 20 and be configured in vertical two ends of vertical arrangement) on two the horizontal relative inclined planes 54 that respectively hold recess 20 (comprising the illusory recess 52 that holds) of promptly vertically arranging in the present embodiment, and this mountain portion 56 is formed with 6 chevron openings 63.These openings 63 form horizontal trapezoid in the present embodiment by roughly forming chevron to the bight at the top that holds recess 20 24 of vertical adjacency with 2 hypotenuses 65 that linearity forms from the bight of the bottom 53 that holds recess 20 to the base plate 64 that forms with linearity in the bight of the vertically adjacent bottom that holds recess 20 53 with from the two ends on this base 64.
Therefore, between with the dummy line of the bottom 53 that links vertical arrangement two openings 63 laterally relative, be formed with the rectangular support portion 69 that is connected that two of connecting vertical adjacency hold the bottom 53 of recess 20 (at two ends longitudinally for holding recess 20 and the illusory recess 52 that holds) and form the plane lengthwise as line of symmetry.
In addition, as the shape of opening 63, also can be the slit of inverted v-shaped roughly.Certainly, as opening 63, importantly can insert second parts 62.In addition, first parts 61 are importantly blocked opening 63 to prevent from the light leak that holds recess 20 by second parts 62 are inserted in the opening 63.
Extremely shown in Figure 6 as Fig. 4, above-mentioned second parts 62 insert in the mode that linearity runs through opening 63, the mode that runs through each transversely arranged opening 63 with horizontal linearity is inserted in the present embodiment, the plate shaped chevron that roughly is bent into inverted v-shaped that becomes that will be longer slightly than the lateral length of first parts 61.In addition, under the state of two inclined planes 71 of second parts 62 in the opening 63 that inserts first parts 61, opening 63 is blocked from the below, and the part of exposing from opening can form the inclined planes 54 that two of vertical adjacency hold the adjacency of recess 20 (in the end of above-below direction for holding recess 20 and the illusory recess 52 that holds).
Under the state of the top 72 of above-mentioned second parts 62 in the opening 63 that inserts first parts 61, can form two each tops 24 that holds recess 20 of vertical adjacency.And, be formed with on the top 72 of second parts 62 from above chimeric to be formed at 6 of top 24 on first parts 61 chimeric with openings 73, and form, 4 tops 24 that respectively hold recess 20 under the state that inserts second parts 62 on first parts 61 are positioned at same plane.
In addition, two of 6 chimeric two ends with the orientation in the opening 73 are chimeric can a chimeric respectively top 24 that holds recess 20 in opening 73.And in the inner part 4 of the two ends of 6 chimeric ratio orientations with the orientation in the opening 73 are chimeric with two each tops 24 that hold recess 20 that can chimeric horizontal adjacency in the opening 73.
Inserted under the state of second parts 62 at above-mentioned first parts 61, formed, the connection support portion 69 of first parts 61 can be from the bottom 53 of supported underneath second parts 62.
In addition, the inserting side of relative at least first parts 61 that is desirably in the bottom 53 of second parts 62 is provided as the chamfered section 74 of inserting guide part.
About other the structure of light reflecting board 51, constitute in the same manner with the light reflecting board 18 of the lamp box 10 of above-mentioned first embodiment, so omit its detailed explanation.
The manufacture method of the light reflecting board 51 of present embodiment then, is described.
The manufacture method of the light reflecting board 51 of present embodiment, formation has mountain portion 56 that forms two the mutual relative faces that hold recess 20 and first parts 61 that have the opening 63 of chevron in this mountain portion 56, formation runs through second parts 62 of the chevron that the mode of opening 63 inserts with linearity, thereby forms and hold recess 20 by insert second parts 62 in the opening 63 of first parts 61.
Above-mentioned first parts 61 for example carry out behind the stamping-out its bending being formed to film or thin slice.Fig. 7 represents this film or thin slice are carried out first parts behind the stamping-out with an example of middle product 81.And first parts after thin slice is carried out stamping-out, are desirably in folding line and partly form the crease line 81a of thin slice at the linearity of thickness direction compression for the ease of bending with on the middle product 81.In Fig. 7, dot this crease line 81a.
Above-mentioned second parts 62 for example carry out behind the stamping-out its bending being formed to film or thin slice.Fig. 8 represents this film or thin slice are carried out second parts behind the stamping-out with an example of middle product 82.And second parts after thin slice is carried out stamping-out are with on the middle product 82, and for the ease of bending, the part that is preferably in folding line forms the crease line 82a of thin slice at the linearity of thickness direction compression.In Fig. 8, dot this crease line 82a.
Then, as shown in Figure 6, by in the opening 63 of first parts 61, inserting second parts 62, thereby finish the manufacturing of light reflecting board shown in Figure 3 51 from the formation end side of chamfered section 74.And, before second parts 62 are inserted into the opening 63 of first parts 61, make the angle θ (Fig. 5) of drift angle of mountain portion 56 of first parts 61 littler than pre-set angle, this distance along the vertical direction of the short transverse shown in the left and right directions of Fig. 6 at the opening 63 of first parts 61 is elongated, thereby the aspect that can insert second parts 62 easily is relatively good.In addition, make the angle θ of drift angle of mountain portion 56 of first parts 61 littler than pre-set angle, if from the both sides of the left and right directions of Fig. 6 the application of force and then shorten the distance of left and right directions of Fig. 6 of first parts 61 to the inside.And after second parts 62 were inserted into the opening 63 of first parts 61, it was very important to make the drift angle angle of the mountain portion 56 of first parts 61 get back to original angle.
That is, the manufacture method of the light reflecting board 51 of present embodiment comprises: film or thin slice are carried out stamping-out processing and bending machining and form the manufacturing procedure of each first parts 61 and second parts 62 with this order respectively by punch process; Thereby and first parts 61 laterally or insert second parts 62 in the opening of vertically arranging 63 and opening 63 usefulness second parts 62 of first parts 61 blocked and form a plurality of assembling procedures that recess 20 ground are assembled that hold.And, preferably the stamping-out in manufacturing procedure processing and bending machining are utilized the sequentially-operating blanking die and carry out in proper order with this.In addition, in the occasion of the formation of carrying out crease line 81a, 82a, preferably stamping-out processing, the compression process that is used to form crease line 81a, 82a and bending machining are utilized the sequentially-operating blanking die and carry out in proper order with this.
In addition, Fig. 6 still illustrates the key diagram that inserts the assembled state that second parts 62 assemble in first parts 61 in the embodiment of manufacture method of light reflecting board of lamp box of the present invention.
Manufacture method according to the light reflecting board 51 of the present embodiment that constitutes by this structure, form 2 the mutual relative mountain portion 56 that holds recess 20 owing to have, and be formed on first parts 61 that this mountain portion 56 has the opening 63 of chevron, second parts 62 of the chevron that formation connects opening 63 with linearity mode is inserted, hold recess 20 by in the opening 63 of first parts 61, inserting 62 formation of second parts, so can form a plurality of recesses 20 that hold of being inverted quadrangle cone shape easily.
That is, playing can be reliably and obtain the good effect of the light reflecting board 51 etc. of present embodiment easily.
And, manufacture method according to the light reflecting board 51 of present embodiment, owing to each crooked formation after film or thin slice are carried out stamping-out, so play the good effect of light reflecting board 51 grades that can obtain present embodiment easilier with each first parts 61 and second parts 62.
In addition, the present invention is not limited to the respective embodiments described above, can carry out various changes as required.
Claims (13)
1. lamp box possesses distributing board, is arranged in a plurality of point source of lights on the above-mentioned distributing board, is configured in the light reflecting board around the above-mentioned point source of light and the light diffusion surface plate of the light transmission that relatively disposes with above-mentioned light reflecting board, it is characterized in that,
Above-mentioned light reflecting board has a plurality of recesses that hold that form the polygonal cone-shaped of inversion, above-mentioned a plurality of recess that holds surrounds one or more above-mentioned point source of lights respectively, above-mentioned one or more point source of lights are inserted respectively to lead to be formed in the above-mentioned inserting hole that holds concave bottom, and above-mentioned a plurality of top that holds recess is connected with the top that holds recess of adjacency separately, and the above-mentioned top that holds recess is positioned at illuminating part from above-mentioned point source of light below the point of bisection of the distance of above-mentioned light diffusion surface plate and the position more than the illuminating part of above-mentioned point source of light.
2. lamp box according to claim 1 is characterized in that,
Above-mentioned point source of light is LED.
3. lamp box according to claim 1 and 2 is characterized in that,
Above-mentioned light reflecting board is that the film or the thin slice of the thermoplastic resin of the fine bubble below the 50 μ m or pore more than the light wavelength constitutes by have mean air bubble diameter in inside.
4. lamp box according to claim 3 is characterized in that,
The film of above-mentioned thermoplastic resin or thin slice by thickness be that 200～2000 μ m, proportion are 0.1～0.7, the light diffuse reflectance of visible light is that thermoplastic polyester foams more than 90% constitute.
5. lamp box according to claim 1 is characterized in that,
Configuration has the light diffuse reflector of a plurality of through holes between above-mentioned light reflecting board and above-mentioned light diffusion surface plate.
6. lamp box according to claim 5 is characterized in that,
The light diffuse reflectance of the visible light on the two sides of above-mentioned smooth diffuse reflector all is more than 90%.
7. according to claim 5 or 6 described lamp boxes, it is characterized in that,
Above-mentioned smooth diffuse reflector is that the film or the thin slice of the thermoplastic resin of the fine bubble below the 50 μ m or pore more than the light wavelength constitutes by have mean air bubble diameter in inside.
8. lamp box according to claim 7 is characterized in that,
The film of above-mentioned thermoplastic resin or thin slice by thickness be that 200～2000 μ m, proportion are 0.1～0.7, the light diffuse reflectance of visible light is that thermoplastic polyester foams more than 90% constitute.
9. lamp box according to claim 1 is characterized in that,
The full light transmittance of above-mentioned light diffusion surface plate is 20～50%, reflectivity is 50～80%.
10. the light reflecting board of a lamp box, have and form a plurality of recesses that hold of being inverted quadrangle cone shape, above-mentioned a plurality of accommodation section surrounds one or more point source of lights respectively, be formed with the inserting hole that is used for inserting logical above-mentioned one or more point source of lights respectively in these bottoms that hold recess, and above-mentioned a plurality of top that holds recess is connected with the top that holds recess of adjacency separately, it is characterized in that
Have: have the mountain portion that forms above-mentioned two the mutual relative faces that hold recess and have first parts of the opening of chevron in above-mentioned mountain portion; Second parts of the chevron of inserting with the mode that runs through above-mentioned opening with linearity insert above-mentioned second parts by the opening at above-mentioned first parts, thereby form the above-mentioned recess that holds.
11. the manufacture method of the light reflecting board of a lamp box, the light reflecting board of this lamp box has a plurality of recesses that hold that form the inversion quadrangle cone shape, above-mentioned a plurality of recess that holds surrounds one or more point source of lights, be formed with the inserting hole that is used for inserting logical above-mentioned one or more point source of lights respectively in these bottoms that hold recess, and above-mentioned a plurality of top that holds recess is connected with the top that holds recess of adjacency separately, this manufacture method is characterised in that
Formation has the mountain portion that forms above-mentioned two the mutual relative faces that hold recess and has first parts of the opening of chevron in above-mentioned mountain portion, formation runs through second parts of the chevron that the mode of above-mentioned opening inserts with linearity, by above-mentioned second parts of insertion in the opening of above-mentioned first parts, thereby form the above-mentioned recess that holds.
12. the manufacture method of the light reflecting board of lamp box according to claim 11 is characterized in that,
In the opening of above-mentioned first parts, insert before above-mentioned second parts, make the angle at item angle of mountain portion of above-mentioned first parts littler than pre-set angle.
13. the manufacture method according to the light reflecting board of claim 11 or 12 described lamp boxes is characterized in that,
Above-mentioned first parts and second parts carry out behind the stamping-out crooked and form to film or thin slice respectively.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005282142 | 2005-09-28 | ||
| JP282142/2005 | 2005-09-28 | ||
| JP2005375362 | 2005-12-27 | ||
| JP375362/2005 | 2005-12-27 | ||
| PCT/JP2006/309788 WO2007037035A1 (en) | 2005-09-28 | 2006-05-17 | Light box, light reflector for the same, and method for producing light reflector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101273231A CN101273231A (en) | 2008-09-24 |
| CN101273231B true CN101273231B (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200680035689.5A Expired - Fee Related CN101273231B (en) | 2005-09-28 | 2006-05-17 | Light box, light reflector for the same, and method for producing light reflector |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5100389B2 (en) |
| KR (1) | KR101285490B1 (en) |
| CN (1) | CN101273231B (en) |
| HK (1) | HK1125159A1 (en) |
| WO (1) | WO2007037035A1 (en) |
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- 2006-05-17 WO PCT/JP2006/309788 patent/WO2007037035A1/en active Application Filing
- 2006-05-17 CN CN200680035689.5A patent/CN101273231B/en not_active Expired - Fee Related
- 2006-05-17 JP JP2007537528A patent/JP5100389B2/en not_active Expired - Fee Related
- 2006-05-17 KR KR1020087006143A patent/KR101285490B1/en not_active IP Right Cessation
-
2009
- 2009-03-13 HK HK09102434.1A patent/HK1125159A1/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1427198A (en) * | 2001-12-18 | 2003-07-02 | 财团法人工业技术研究院 | Luminous diode illuminating light source device |
| CN1538538A (en) * | 2003-04-09 | 2004-10-20 | �����ǵ��ӹɷ�����˾ | LED lamp |
Non-Patent Citations (5)
| Title |
|---|
| JP公开实用平成3-43208 1991.04.23 |
| JP特开2003-22701 2003.01.24 |
| JP特开2004-6317 2004.01.08 |
| JP特开2005-190965 2005.07.14 |
| JP特开2005-235581 2005.09.02 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101285490B1 (en) | 2013-07-12 |
| HK1125159A1 (en) | 2009-07-31 |
| KR20080063274A (en) | 2008-07-03 |
| CN101273231A (en) | 2008-09-24 |
| JP5100389B2 (en) | 2012-12-19 |
| WO2007037035A1 (en) | 2007-04-05 |
| JPWO2007037035A1 (en) | 2009-04-02 |
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