CN100523589C - Neon light emulated luminous sign device with reflection edge directly packaged by LED chip - Google Patents
Neon light emulated luminous sign device with reflection edge directly packaged by LED chip Download PDFInfo
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- CN100523589C CN100523589C CNB2007100078148A CN200710007814A CN100523589C CN 100523589 C CN100523589 C CN 100523589C CN B2007100078148 A CNB2007100078148 A CN B2007100078148A CN 200710007814 A CN200710007814 A CN 200710007814A CN 100523589 C CN100523589 C CN 100523589C
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Abstract
The invention discloses a luminescent mark device with a reflecting edge, and is similar to a neon lamp, and the luminescent mark device is directly enclosed with a LED chip. The invention comprises a light guide bar with the shape of the front surface being required character or line shape, lighting grooves made of light tight material and arranged on both sides at the lower part of the light guide bar, and LED lighting chip circuit boards which are also arranged at the lower part of the lighting grooves. The invention is characterized in that the inner side of at least one surface in the three surfaces enclosed by the lighting grooves and the circuit boards is provided with the reflecting edge. Concretely, transverse reflecting edge structures can be added but not be limited at the bottom parts of the lighting grooves, thus the light rays of the LED chip are reflectively reflected to the light guide bar along the circuit board, the light path of the light rays are shortened, the light absorbing of the enclosing material is reduced, and the lighting effect and the lightening uniformity of the device are improved; vertical reflecting edge curved surface structures can also be added but not be limited in the inner surfaces of the lighting grooves, and according to the mathematics ellipse focal point reflection principle, all the lights transmitted to the curved surface by the LED chip are reflected to a specific dark space of the light guide bar, so as to improve the brightness of the dark space.
Description
Technical field:
The present invention relates to the luminous advertisement sign that is used to show, particularly a kind of similar neon light luminous sign device that directly encapsulates and be with reflection edge by led chip.
Background technology:
How traditional luminous advertisement or other device for marking are made of neon light tube, incandescent lamp or fluorescent tube, but they exist that voltage height, poor stability, volume are big, transportation inconvenience, life-span are short, produce a large amount of heats, the big operating cost height of energy consumption, can't be through being impacted and needing shortcoming such as professional's installation and maintenance.
Along with the LED development of technology, LED has been incorporated into the application of simulate neon light and has obtained some progress, but all be generally in the circuit board as illuminating source with commercially available LED single-tube welding, make character to display or bargraphs shape then, mainly there are two problems in this way:
The one, because the optical design of commercially available LED single tube and incomplete application at light-emitting device, use the light-emitting device of this LED single tube to need to carry out optical design again on this basis, therefore twice optical design exist unreasonable and incoherent defective, thereby more or less have the problem of the light even light efficiency loss of skewness spatially; The 2nd, cost is relatively still higher.
Improvement as such scheme, the application number of the applicant's application is that the utility application of 200620045553.X and 200610030911.4 application for a patent for invention have proposed directly to encapsulate the solution that realization has the light-emitting device of similar neon effect with led chip, complete instructions for use at light-emitting device, led chip is carried out disposable overall optical design, thereby for addressing this problem, opened up new thinking, and the cost of light-emitting device is obviously reduced.Though the increase reflection of light has been taked in these two patent applications in optical design, diffusion and gathering, make try one's best a series of measures of directive leaded light bar of light, medial surface as the leaded light bar is smooth, outer surface fine grinding hair sand, light groove both sides are from small to large horn-like from led chip place wiring board to the leaded light bar, the light groove is inboard smooth and reflective, or again coated with reflectorized material, the silica gel of encapsulation mixes an amount of scattering diluent etc., but what led chip sent is low-angle light with wiring board, except the part of horizontal directive light groove is reflected the guide striation, but there is not directive leaded light bar along the part of character or the vertical directive adjacent LED of lines stroke chip, wasted.The problems referred to above show that similar structure can also improve with further raising light efficiency.The application number of the applicant's application is 2006200458364 utility application for this reason, on aforementioned two patent application scheme bases, done improvement, led chip is reflexed to the leaded light bar along the light that was wasted originally of character or the vertical directive adjacent LED of lines stroke chip by adding horizontal reflection edge, improved illumination effect.But whole display effect from the leaded light bar, the luminosity at the leaded light bar place of two adjacent led chip spacing middle point vertical tops is still obviously dark partially, trace it to its cause, the one, it is that the light wave range is the longest that the light that this position, place is accepted is compared with other position, the 2nd, though the light that led chip sends is to emission all around, seem relative rare but compare the light shafts that reflex to this point with other light-emitting zone of leaded light bar, therefore formed the dark space.At this technical problem, be necessary to make improvements.
Summary of the invention:
The object of the invention is to provide a kind of similar neon light luminous sign device that is directly encapsulated and be with reflection edge by led chip.Make on above-mentioned 3 patent application scheme bases,, make such device on the light efficiency and the luminous uniformity, bigger raising be arranged by improvement to optical design and application technology thereof.
A kind of similar neon light luminous sign device that directly encapsulates and be with reflection edge by led chip of the present invention, comprise that front shape is the leaded light bar of required character or lines shape, the light groove that both sides, leaded light bar below are made by light-proof material, and below the light groove and be equipped with the wiring board of LED luminescence chip, it is characterized in that, in three that described smooth groove and wiring board surround, Yi Mian inboard is provided with the reflection edge corresponding with the LED luminescence chip at least.
In the foregoing invention device, the bottom of described smooth groove is provided with the horizontal reflection edge of a plurality of connection two sidelight grooves, and these horizontal reflection edges are close to wiring board and are laid respectively at the centre-to-centre spacing place of two adjacent led chips on the described wiring board.
In the foregoing invention device, both sides in the described smooth groove, exist together two sidelight rooved face places of a cross section of the led chip in the most nearby, respectively be provided with one corresponding with this LED luminescence chip and move towards vertical vertical reflection edge with the light groove.
In the foregoing invention device, described horizontal reflection edge is that light-proof material is made, and the surface is smooth reflective surface, or again coated with other reflectorized material, laterally reflection edge is finalized the design with an injection moulding of light groove.
In the foregoing invention device, the one side that described horizontal reflection edge is close to wiring board has level and smooth bottom, and its cross section that is parallel to wiring board trend is for single with smooth curve by broken line or mix the left-right symmetry closed figures of forming.
In the foregoing invention device, described horizontal reflection edge top is no more than wiring board apart from 1/3 of the maximum clear height of leaded light bar apart from the vertical height of wiring board, and its bottom width is no more than 1/3 of two adjacent led chip spacings.
In the foregoing invention device, the horizontal reflection edge that is in character or lines stroke end is only got the half side of close led chip, gives up the half side in addition of close character or lines end; The led chip that is in character or lines stroke end is arranged on 1/2 of adjacent LED inter-chip pitch apart from the distance of character or lines stroke end.
In the foregoing invention device, it is leg-of-mutton prism that described vertical reflection edge is the bottom surface, bottom surface that it is prismatic and wiring board Plane intersects, phase cross surface are that drift angle points to the isosceles triangle of led chip nearby, and the base of this isoceles triangle shape overlaps with the sideline that wiring board and light groove intersect.
In the foregoing invention device, the triangular ridges cylinder of described vertical reflection edge is close to light groove inner surface when wiring board bottom vertical guide striation direction is extended, and the height of the isosceles triangle of the cross section of this prism tapers off and dwindles.
In the foregoing invention device, the prism height of described vertical reflection edge is less than the height of light groove, in the upper end of this vertical reflection edge near the leaded light bar, be one to be smoothly transitted into the plane of light rooved face, its cross surface mutually with vertical reflection edge body is to be the isosceles triangle plane on summit near the seamed edge summit of leaded light bar with vertical reflection edge.
In the foregoing invention device, described vertical reflection edge and light flowing current separation same material, the junction of vertical reflection edge and primary plane formula light groove and the seamed edge of anti-vertical light rib all adopt the fillet smoothing processing, finalize the design and are connected as a single entity with the injection moulding of light groove.
Adopted above-mentioned technical solution, the present invention provide a kind of illuminator directly with led chip encapsulation and band reflection edge, outward appearance and illumination effect be similar to the device of luminous sign, advertisement or the art work of neon light, comprise the leaded light bar that is pressed into literal or lines shape, the light groove of leaded light bar below, wiring board below the light groove, leaded light bar, light groove, wiring board constitute a sealing optical cavity and this structure are placed on the general frame of device.Be vertical distribution by certain distance in the optical cavity of a string emitting led chip below the leaded light bar, fixing in the circuit board with solid brilliant press welding method.According to the width difference of leaded light bar, vertical narrowly distributing of led chip can be wire, the wide band shape that is.Fill encapsulation with encapsulating materials such as silica gel transparent or the band scattering diluent in the closed cavity, the light that chip sends gathers on the translucent leaded light bar through reflection, the diffusion of optical cavity, and it is luminous continuously to form the leaded light bar, reaches the effect of similar neon light.
It is worthy of note, the horizontal reflection edge structure of being added among the present invention, be equivalent to be provided with a horizontal semi open model optical cavity for each led chip, by becoming low-angle light fully to reflect led chip directive adjacent LED chip and with wiring board and the gathering of guide striation, can be effectively light reflection guide striation along wiring board, shortened the light path of this part light, reduced the absorption of encapsulating material to light, thereby further improved the light efficiency and the luminous uniformity of such device, respond well in actual applications.Certainly, even reaching under the condition of same uniformity of luminance, after adding horizontal reflection edge wiring board is descended to some extent to the design vertical height of leaded light bar, perhaps reduce the ratio of adding scattering diluent in the encapsulating material, these all are the favorable factors that reduces cost: in addition, this horizontal reflection edge also connects the light groove has been played connection, support and reinforcement effect, the location that has changed original light groove two sides depends on the situation of leaded light bar fully, and this kind The Application of Technology can also not create conditions for making has the light-emitting device of leaded light bar.
In addition, the present invention adopts and add vertical reflection edge structure on the light rooved face, and it is according to being elliptic focus principle of reflection in the mathematics, promptly in a plane ellipse, can reflection behind the light directive elliptic curve that focus is sent to another focus of ellipse.Because there is the dark space in the leaded light bar of two adjacent led chip spacing middle point vertical tops in the light groove of existing apparatus, so according to this principle, with led chip is a focus, corresponding points with the described dark space of leaded light bar of two adjacent led chip spacing middle point vertical top be another focus, can do one and the tangent ellipse in light groove plane.Certainly being focus with above-mentioned 2, having numerously in fact with the tangent ellipse in light groove plane, serves as that the axle rotation constitutes a curved surface with these two focus lines.This curved surface all keeps above-mentioned light characteristic, promptly can all reflex to the light of this curved surface of led chip directive the described dark space of leaded light bar.Thereby improved the brightness of this dark space.In actual use, owing to serve as axle rotation and be difficult to Analytical Expression, in Shooting Technique, also be difficult to accurate realization with the tangent oval calotte in light groove plane with these two focus lines.The investigation scope of considering this technology is confined within the heart of Centimeter Level usually, so the distortion prism that available above-mentioned bottom surface is an isosceles triangle is similar to realization.
From in general, advantage such as the present invention has also that result of use is good, simple in structure, price is low, durability is strong, high efficiency, long-life, low-voltage power supply and difficult fragmentation.
Description of drawings:
By the description of a following embodiment to a kind of similar neon light luminous sign device that directly encapsulates and be with reflection edge by led chip of the present invention in conjunction with its accompanying drawing, can further understand purpose of the present invention, specific structural features and advantage, referring to as follows:
Fig. 1 is the present invention's longitudinal sectional drawing of billboard in an embodiment.
Fig. 2 is the present invention's transverse cross-sectional view of billboard in an embodiment.
Fig. 3 is the present invention's wiring board illustration in an embodiment.
The optical cavity sectional view that Fig. 4 is formed for the reflection edge group that the present invention settles in leaded light bar, light groove, wiring board and the light groove in an embodiment.
The another kind of form sectional view of the optical cavity that Fig. 5 is formed for the reflection edge group that the present invention settles in leaded light bar, light groove, wiring board and the light groove in an embodiment.
Fig. 6 is the present invention's structure outside drawing of light groove inner transverse reflection edge and vertical reflection edge in an embodiment.
Fig. 7 increases the principle schematic that vertical reflection edge improves leaded light bar dark space in an embodiment for the present invention.
Fig. 8 for the present invention before not increasing the reflection edge group, the optical analog design sketch that hot spot presented in the implementation procedure on the leaded light bar.
Fig. 9 for the present invention after increasing the reflection edge group, the optical analog design sketch that hot spot presented in the implementation procedure on the leaded light bar.
Figure 10,11,12, the 13 different shape figure that may select (not considering among the figure to be connected) with the light groove for horizontal reflection edge.
The specific embodiment:
The invention will be further described for the device in kind of display shape is next to adopt stroke " " below in an embodiment.
As shown in Figure 1 and Figure 2, a kind of construction profile of the present invention comprises general frame 1, can be black ABS plastic press forming, and shape is not limit.Wherein identical with expressed character shape (present embodiment adopts " one " type display shape) leaded light bar 2 is to be formed by translucent acrylic compacting, its inner face is smooth, can allow light freely enter, the outside is thin ground surface, light face diffusion thus forms soft light-emitting area, there is scattering diluent inside, and the light that enters the leaded light bar can spread, accumulate.The both sides, below of leaded light bar are the light grooves 3 that lighttight white PPO (polyphenyl ethers) material is made.Light groove 3 is pressed into an integral body with the method for leaded light bar 2 usefulness quadric injection mould moulding, and the purpose of doing like this is that whole advertisement screen is simple in structure, and technological process is shortened, and concerning mass production, suppression process does not influence the increase of cost substantially.In optical cavity sectional view shown in Figure 4, main side is two planes 8 in the light groove 3, makes smooth surface to increase the reflection of light rate, also can spray reflectorised paint in the above.There is the groove of fritter light groove 3 outsides, at the corresponding site of general frame 1 projection (not marking among the figure) of coupling are arranged then, and both rely on elasticity to kowtow and close to make positioning and fixing.Respectively there is a step 12 on the both sides of light groove, location wiring board 4 during in order to encapsulation.
The shape of wiring board 4 is made similar to character or lines in advance, has the one side of chip to lean against on the step 12, because circuit is simple, therefore can adopt the very low single face epoxy plate of cost.
Referring to Fig. 1, laterally reflection edge 7 is placed in the bottom of light groove, and particular location is positioned at the centre-to-centre spacing point of two adjacent led chips.And the horizontal reflection edge that is in character or lines stroke end is only settled the half side of close led chip, gives up the half side in addition of close character or lines end; The led chip that is in character or lines stroke end is arranged on 1/2 of adjacent LED inter-chip pitch apart from the distance of character or lines stroke end.Can guarantee that like this light intensity of sending in stroke other place terminal and stroke is much the same.
Laterally the material of reflection edge 7 is the light-proof material identical with the light groove, and the surface is smooth reflective surface, or again coated with other reflectorized material, laterally reflection edge 7 is connected as a single entity with the light groove, and an injection moulding forms.This makes energy and wiring board front fit tightly.
Laterally reflection edge 7 one side of being close to wiring board has level and smooth bottom, and its cross section that is parallel to the wiring board trend is for single with smooth curve by broken line or mix the left-right symmetry closed figures of forming.This horizontal reflection edge section selection is semicircle in this example.The fact shows that its reflecting effect is better.Certainly in actual use, this cross section can also be chosen as isosceles triangle, isosceles trapezoid, half elliptic or part ellipse or the like, shown in Figure 10,11,12,13 except can selecting semicircle or part circular.
In addition, laterally reflection edge 7 tops are no more than wiring board apart from 1/3 of the maximum clear height of leaded light bar apart from the vertical height of wiring board, and its bottom width is no more than 1/3 of adjacent LED inter-chip pitch.
The structure of vertical reflection edge can be referring to Fig. 6, and vertical reflection edge 11 is positioned at the both sides of light groove led chip the most nearby, and every side relevant position forms a pair of of correspondence, and it is some right to be mounted with in the light groove.This vertical reflection edge is the prism that the bottom surface is an isosceles triangle, and bottom surface that it is prismatic and wiring board Plane intersects, phase cross surface are the isosceles triangle that drift angle points to led chip, and the base of this isoceles triangle shape overlaps with the sideline that wiring board and light groove intersect.Usually less than 1/4 of bottom, light groove two sides spacing, its base length is roughly 1/3 of two adjacent led chip spacings to the height of this bottom surface isosceles triangle.The triangular ridges cylinder of vertical reflection edge is when bottom guide striation direction is extended along the light rooved face from wiring board, and the height of the isosceles triangle of this prism cross section tapers off and dwindles.
Certainly, vertical reflection edge 11 its prism height are less than the height of light groove, be generally about half of overall optical groove height, in the upper end of this vertical reflection edge near the leaded light bar, be one to be smoothly transitted into the plane of light rooved face, this plane and the cross surface mutually of vertical reflection edge body are to be the isosceles triangle plane on summit near the seamed edge summit of leaded light bar with vertical reflection edge.This leg-of-mutton base is near the leaded light bar, roughly on 3/4 altitude line of light groove, and the base same length of its base length and this vertical reflection edge cross-sectional triangle.The purpose that this plane is set be allow all positions of leaded light bar can receive led chip luminous direct projection or reflection, prevent that vertical reflection edge from directly extending to leaded light bar place, make the luminous projection that this reflection edge on the leaded light bar, occurs of led chip, form new dark space.
In addition, when this vertical reflection edge of making is connected as a single entity it with the injection mo(u)lding of light groove, the fillet smoothing processing has all been done in all sidelines.
Also in Fig. 4, leaded light bar 2, the light groove 3 of having settled the reflection edge group, wiring board 4 have been formed a sealing optical cavity, and its inside encapsulates with silica gel, leaded light bar 2 and light groove 3 can be fixed on the general frame 1 during encapsulation, leaded light bar 2 is following, and light groove 3 pours into proper silica gel last.The position that has one of chip to face down the wiring board 4 and place the step 12 that is depressed into the light groove stops, and by the elasticity small embossment 10 of lower end side in the light groove from the other direction location, unnecessary silica gel flows out from the glue hole 13 of leading of wiring board.The consumption of silica gel controls to silica gel to be flowed out cover wiring board thinly from lead glue hole 13 and gets final product.
With the benefit of the used LED single tube of most variations before the chip replacement, the one, save cost, the 2nd, the light utilization height.This be since in the present invention light send after the direct directive leaded light of silica gel bar from chip, so light utilization is higher.In addition, because the beam angle of chip generally can very big (all having light) in 180 °, therefore needn't evenly and specially go to have selected the LED single tube of wide-angle in order to make light.Be mixed with an amount of diffusant in the silica gel 6 in advance, its effect is to make the light scattering that enters silica gel, homogenising just before light arrives the leaded light bar: like this, and leaded light bar luminous just more even.Because silica gel has outstanding advantage aspect anti-aging, and the silica gel that the present invention uses is in airtight relatively environment, and therefore can using comparatively, the silica gel of " soft " is the silica gel of " jelly " form.Can and not help maintenance like this owing to stress makes chip loosening so that influence luminously.
Referring to Fig. 3, led chip 5 on the wiring board 4 realizes that with current-limiting resistance 16 circuit is connected, and be connected with gauge tap through lead 9, through being placed on the control circuit of general frame 1 inside, can making the advertisement character send the color of variation and variable sequence of light and frequency are arranged.
Fig. 5 is an another one form of the present invention, does not at this moment fill up silica gel in whole optical cavity, but adopts the mode of some glue putting a point silica gel on each chip.At this moment, the leaded light bar can adopt comparatively thicker structure with remedy because of the silica gel amount less so that the shortcoming of light scattering deficiency.The cost of this structure is a kind of also lower than preceding.
In sum, the present invention lines up led chip linear by the width of leaded light bar or band shape array, and forming the profile front is these wire (straight line or curve) or the banded required character that constitutes or the illuminator of lines, thereby reaches the purpose of advertisement.In addition, by in the light groove, increasing reflection edge, make the light that sends on the leaded light bar homogeneous and bright that more becomes.The present invention also has following characteristics:
The present invention comprises at least one leaded light bar on the general frame of device for marking, front shape is required lines of advertisement or the character that has certain width numeral stroke, the leaded light bar is made of trnaslucent materials, inner wall smooth, can penetrate light, to inner accumulated and scattered beam, form the space and connect luminous.Outer wall is a hair sand shape, but scattered beam externally forms luminous character.The leaded light bar is at the framework upper process, and color is different with framework, even when LED does not work, advertising effects is arranged also.
The corresponding leaded light bar of the present invention also comprises a light groove and wiring board, and light groove side is made of light-proof material, and two sides in opposite directions thirty years of age are shape with wide top and narrow bottom.Just come on the wiring board of light trench bottom with the fixing chip array of solid brilliant press welding method.Light groove madial wall is smooth, but reflection ray or scribbles reflectorized material, makes light move towards unique outlet leaded light bar one by one after reflection.Leaded light bar, light groove two sided and bottom wiring board constitute the optical cavity of sealing.The encapsulating material (as silica gel) that is mixed with certain scattering diluent is encapsulated in the optical cavity, and this makes light just pass through scattering before making equalizing light rays entering the leaded light bar, thereby makes and see through the luminous more even, soft of leaded light bar.Have with silica gel encapsulation that ageing resistace is good, the characteristics of good heat conductivity, this makes device have good anti-environmental performance.
The present invention adopts led chip directly to encapsulate, rather than with commercially available packaged LED fluorescent tube, this can simplified structure, reduce cost, in the space that leaded light bar, light groove and wiring board form, be encapsulated into silica gel simultaneously, this can make the light in the chip be released more, avoided the loss of light, the diffusant in the silica gel can make the light diffusion simultaneously, to eliminate " dark space " of light.
The present invention adopts the post forming Shooting Technique, makes the leaded light bar become as a whole with light groove side, more helps encapsulation and assembling, has simplified processing technology, makes device more reliable.
The present invention adopts the wiring board of moulding in advance, and the shape trend of wiring board is identical with the advertisement character, but width is slightly narrow.It is fixing in the circuit board with solid brilliant press welding method that chip is pressed certain distance, and wiring board is then laid the optical cavity bottom at last and encapsulated.Having than large tracts of land on the wiring board is zinc-plated reflective surface, and this makes light on the directive wiring board also can return to enter optical cavity and arrives the leaded light bar at last.The another side of wiring board is connected to led chip circuit supply and can shows control with lead.
Another form of the present invention is on each led chip of above-mentioned wiring board, and the silica gel of minute quantity on the point is promptly made individual packages to each led chip, and at this moment whole optical cavity is not to be filled up by silica gel, and this has a little influence to light intensity, but can save material greatly.
The present invention adopts and add horizontal reflection edge structure in the light groove, be equivalent to be provided with a horizontal semi open model optical cavity for each led chip, by becoming low-angle light fully to reflect led chip directive adjacent LED chip and with wiring board and the gathering of guide striation, can be effectively light reflection guide striation along wiring board, shortened the light path of this part light, reduced the absorption of encapsulating material to light, thereby further improved the light efficiency and the luminous uniformity of such device, respond well in actual applications.Certainly, even reaching under the condition of same uniformity of luminance, after adding horizontal reflection edge wiring board is descended to some extent to the design vertical height of leaded light bar, perhaps reduce the ratio of adding scattering diluent in the encapsulating material, these all are the favorable factors that reduces cost: in addition, this horizontal reflection edge has also played connection, support and reinforcement effect to the light groove, the location that has changed original light groove two sides depends on the situation of leaded light bar fully, and this kind The Application of Technology can also not create conditions for making has the light-emitting device of leaded light bar.
The present invention adopts and add vertical reflection edge structure on the light rooved face, and it is according to being elliptic focus principle of reflection in the mathematics, promptly in a plane ellipse, can reflection behind the light directive elliptic curve that focus is sent to another focus of ellipse.Because there is the dark space in the leaded light bar of two adjacent led chip spacing middle point vertical tops in the light groove of existing apparatus, so according to this principle, with led chip is a focus, corresponding points with the described dark space of leaded light bar of two adjacent led chip spacing middle point vertical top be another focus, can do one and the tangent ellipse (referring to Fig. 7) in light groove plane.Certainly being focus with above-mentioned 2, having numerously in fact with the tangent ellipse in light groove plane, serves as that the axle rotation constitutes a curved surface with these two focus lines.This curved surface all keeps above-mentioned light characteristic, promptly can all reflex to the light of this curved surface of led chip directive the described dark space of leaded light bar.As can be seen from Figure 7, the vertical reflection edge with this effect in light rooved face projection, approximately be equal to the prism that the bottom surface is an isosceles triangle.Can improve the brightness of this dark space by this vertical reflection edge, thereby overcome the obvious dark partially shortcoming of luminosity at the leaded light bar place that is positioned at two adjacent led chip spacing middle point vertical tops on the wiring board.
The structure of above-mentioned horizontal reflection edge and vertical reflection edge both can be implemented separately, but also Joint Implementation.Fig. 8 and Fig. 9 are the optical analog design sketch that hot spot presented on the leaded light bar of implementing before and after the present invention.From the obvious contrast of two figure as can be seen, realize the present invention after effect very remarkable.
More than be one of embodiments of the present invention,, do not spend performing creative labour, on the basis of the foregoing description, can do multiple variation, can realize purpose of the present invention equally for those skilled in the art.But this variation obviously should be in the protection domain of claims of the present invention.
Claims (11)
1, a kind of neon light luminous sign device that directly encapsulates and be with reflection edge by led chip, comprise that front shape is the leaded light bar of required character or lines shape, the light groove that both sides, leaded light bar below are made by light-proof material, and below the light groove and be equipped with the wiring board of LED luminescence chip, it is characterized in that, be mounted with some in the described smooth groove to vertical reflection edge, this vertical reflection edge is positioned at the both sides of light groove led chip the most nearby, every side relevant position forms a pair of of correspondence, is used for making light to reflex to dark space on the leaded light bar.
2, a kind of neon light luminous sign device that directly encapsulates and be with reflection edge by led chip according to claim 1, it is characterized in that the bottom of described smooth groove is provided with the horizontal reflection edge of a plurality of connection two sidelight grooves, this horizontal reflection edge is close to wiring board and is placed in the centre-to-centre spacing place that is positioned at two adjacent led chips on the described wiring board respectively.
3, a kind of neon light luminous sign device that directly encapsulates and be with reflection edge by led chip according to claim 1, it is characterized in that both sides in the described smooth groove, exist together two sidelight rooved face places of a cross section of led chip in the most nearby, respectively be provided with one corresponding with this LED luminescence chip and move towards vertical vertical reflection edge with the light groove.
4, according to the described a kind of neon light luminous sign device that directly encapsulates and be with reflection edge by led chip of claim 2, it is characterized in that described horizontal reflection edge is that light-proof material is made, the surface is smooth reflective surface, or again coated with other reflectorized material, laterally reflection edge is finalized the design with an injection moulding of light groove.
5, according to the described a kind of neon light luminous sign device that directly encapsulates and be with reflection edge by led chip of claim 2, it is characterized in that the one side that described horizontal reflection edge is close to wiring board has level and smooth bottom, its cross section that is parallel to wiring board trend is for single with smooth curve by broken line or mix the left-right symmetry closed figures of forming.
6, according to the described a kind of neon light luminous sign device that directly encapsulates and be with reflection edge by led chip of claim 2, it is characterized in that described horizontal reflection edge top is no more than wiring board apart from 1/3 of the maximum clear height of leaded light bar apart from the vertical height of wiring board, its bottom width is no more than 1/3 of two adjacent led chip spacings.
7, according to the described a kind of neon light luminous sign device that directly encapsulates and be with reflection edge by led chip of claim 2, the horizontal reflection edge that it is characterized in that being in character or lines stroke end is only got half side near led chip, gives up half side in addition near character or lines end; The led chip that is in character or lines stroke end is arranged on 1/2 of adjacent LED inter-chip pitch apart from the distance of character or lines stroke end.
8, according to the described a kind of neon light luminous sign device that directly encapsulates and be with reflection edge by led chip of claim 3, it is characterized in that it is leg-of-mutton prism that described vertical reflection edge is the bottom surface, bottom surface that it is prismatic and wiring board Plane intersects, the phase cross surface is that drift angle points to the isosceles triangle of led chip nearby, and the base of this isoceles triangle shape overlaps with the sideline that wiring board and light groove intersect, the higher primary school of this bottom surface isosceles triangle is in 1/4 of bottom, light groove two sides spacing, and its base length is 1/3 of two adjacent led chip spacings.
9, according to the described a kind of neon light luminous sign device that directly encapsulates and be with reflection edge by led chip of claim 3, the triangular ridges cylinder that it is characterized in that described vertical reflection edge is close to light groove inner surface when wiring board bottom vertical guide striation direction is extended, and the height of the isosceles triangle of the cross section of this prism tapers off and dwindles.
10, according to the described a kind of neon light luminous sign device that directly encapsulates and be with reflection edge by led chip of claim 3, the prism height that it is characterized in that described vertical reflection edge is less than light groove height, in the upper end of this vertical reflection edge near the leaded light bar, be one to be smoothly transitted into the plane of light rooved face, this plane and the cross surface mutually of vertical reflection edge body are to be the isosceles triangle plane on summit near the seamed edge summit of leaded light bar with vertical reflection edge.
11, according to the described a kind of neon light luminous sign device that directly encapsulates and be with reflection edge by led chip of claim 3, it is characterized in that described vertical reflection edge and light flowing current separation same material, the junction of vertical reflection edge and primary plane formula light groove and the seamed edge of vertical reflection edge all adopt the fillet smoothing processing, finalize the design and are connected as a single entity with the injection moulding of light groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100078148A CN100523589C (en) | 2006-09-15 | 2007-01-10 | Neon light emulated luminous sign device with reflection edge directly packaged by LED chip |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620045836.4 | 2006-09-15 | ||
| CN200620045836 | 2006-09-15 | ||
| CNB2007100078148A CN100523589C (en) | 2006-09-15 | 2007-01-10 | Neon light emulated luminous sign device with reflection edge directly packaged by LED chip |
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| CN101144574A CN101144574A (en) | 2008-03-19 |
| CN100523589C true CN100523589C (en) | 2009-08-05 |
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| CN103090216B (en) * | 2011-11-08 | 2014-11-05 | 海洋王（东莞）照明科技有限公司 | Anti-dazzle heat-dissipating LED (light emitting diode) lamp |
| CN109253406A (en) * | 2018-11-06 | 2019-01-22 | 杭州明煜光电科技有限公司 | The production technology of LED filament, lamps and lanterns and LED filament |
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