CN105650490A - Lighting lamp and design method for light guide plate of lighting lamp - Google Patents
Lighting lamp and design method for light guide plate of lighting lamp Download PDFInfo
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- CN105650490A CN105650490A CN201610133034.7A CN201610133034A CN105650490A CN 105650490 A CN105650490 A CN 105650490A CN 201610133034 A CN201610133034 A CN 201610133034A CN 105650490 A CN105650490 A CN 105650490A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
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- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides a lighting lamp and a design method for a light guide plate of the lighting lamp. The lighting lamp comprises the light guide plate, a lamp bar, a pseudo light source and lattice points. The light guide plate is provided with a light inlet face, a distance light face, a light outlet face and a bottom face, the light inlet face and the distance light face are oppositely arranged, and the light outlet face and the bottom face are oppositely arranged as well; the light bar is arranged on the light inlet face so as to form side direction light inlet relative to the light guide plate; the pseudo light source is made of a reflection material and arranged on the distance light face so that part of light which is emitted by the lamp bar and is output without passing through the light guide plate is reflected back to the light guide plate; and the lattice points are arranged on the light outlet face or the bottom face according to a light taking capacity distribution curve, the light taking capacity distribution curve is a continuous curve with the light taking capacity changing from low to high to low from the light inlet face to the distance light face, the distance between the position of a peak value of the curve and the distance light face is shorter than the distance between the position of the peak value of the curve and the light inlet face, and therefore the lighting lamp obtains a bat-wing-shaped light distribution curve. Under the condition of single-side light inlet, the lighting lamp can show the bat-wing-shaped projection light form, the production cost is effectively reduced, and the lighting effect is promoted.
Description
Technical field
The present invention is about lighting field, especially a kind of when single-sided illumination, can have the lighting of preferably bat aerofoil profile distribution curve flux and the method for designing of light guide plate thereof.
Background technology
For providing user preferably to illuminate, the projection light type needed for current part light emitting diode (calling LED in the following text) light fixture, for the both sides light intensity bat aerofoil profile form more than central optical intensity. Tradition has the light fixture of bat aerofoil profile distribution curve flux, each LED light source arranges the lens of correspondence, being used for assembling the irradiation light penetrated by lens and form required distribution curve flux, but need the light fixture of a large amount of LED light source, the mode being respectively provided with lens can be significantly increased setup cost. According to single lens and the reflection subassembly mode in conjunction with light fixture pedestal, then produced distribution curve flux cannot be controlled at optimum state.
Under light guide plate technology is flourish, the application category of light guide plate also expands relatively, in view of the superior optical characteristics of light guide plate, also sees in recent years and has relevant dealer to be applied in light fixture, it is desirable to utilize light guide plate characteristic to make the light type of projection more perfect. to have the light fixture of side entering type light source, after light enters light guide plate, micro structure by light guide plate affects and goes out light from its exiting surface immediately, therefore when all the other structures or assembly do not adjust, being limited to the light characteristic of LED light source, the contiguous light guide plate distally of light fixture has and relatively has more light. generally speaking, if special light type need to be produced in the light fixture of application light guide plate, most likely light guide plate is coordinated to adjust the light type of light in conjunction with reflection subassembly, as wanted to project bat aerofoil profile light type as the aforementioned, then need to configure multiple reflection subassembly in light fixture, and adjust position and the angle of indivedual reflection subassembly, to gradually form bat aerofoil profile light type, but this kind of design then can increase the degree of difficulty in Design of Luminaires with installation not easily, and light is via multiple reflection subassemblies, constantly carry out the conduction such as catadioptric, then can cause energy loss, result in the problems such as light intensity is not enough and uniform not. ?hi Sha Shao alliance's ? wooden tablets or slips for writing much strands sword mediocre arrange of ? Mian tut-tut �� ? ridge a legendary animal that eats ito own mother make internal disorder or usurp the upper and lower teeth not meeting properly nice food barium wood ? discuss the alkynes 5. shave a man's head ? rooms at the sides of or facing the principal rooms stop ? receive the table tennis arrange click fervent alkynes stunned Na of ascarid finish loyal ? beat straight Jiao closely question ridge a legendary animal that eats ito own mother a surname south remote ? pine Fructus Citri grandis Chi ED light source, what progressively adjust light guide plate two side again goes out light form, but this kind of set-up mode can be significantly increased product cost.
Therefore, the projection light type how effectively adjusting light fixture also can reduce the production cost of light fixture simultaneously, is the relevant dealer problem of currently endeavouring solution. Therefore, the present inventor is for improving drawbacks described above, and then design can provide bat aerofoil profile distribution curve flux, and need not expend the lighting of high product cost and the method for designing of light guide plate thereof simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is to overcome in prior art when single-sided illumination, when using the distribution curve flux that light form presents bat aerofoil profile, the defect that product cost is low and yield is high cannot be had concurrently, it is provided that the method for designing of a kind of lighting and light guide plate thereof. The lighting of the present invention when single-sided illumination, can be used light form and present the distribution curve flux of bat aerofoil profile, and simultaneously effective reduce product cost and improving product volume production rate.
The present invention solves above-mentioned technical problem by the following technical programs.
The invention provides a kind of lighting, including: a light guide plate, there is an incidence surface, a distance light face, an exiting surface and a bottom surface, this incidence surface and this distance light face are for being oppositely arranged, this exiting surface and this two ends, bottom surface adjoin this incidence surface and this distance light face, this exiting surface and this bottom surface respectively also for being oppositely arranged;
One lamp bar, is located at this incidence surface of this light guide plate and forms side direction type and enter light;
One pseudo-light source, is a reflecting material and this distance light face being located at this light guide plate, and the some light being used for being penetrated by this lamp bar and going out without this light guide plate light is reflected back this light guide plate;
And a site, light ability distribution curve is taken according to one, it is arranged at this exiting surface or this bottom surface, wherein this light ability that takes taking light ability distribution curve is short with the distance of this incidence surface compared with it with the distance in this distance light face towards the seriality curve that this distance light face is low-high-low and peak of curve position by this incidence surface, is used for making this lighting obtain bat aerofoil profile distribution curve flux. Thus, by according to taking the site of non-uniformity arrangement that light ability distribution curve is laid, adjust and sent and be incident to the light of light guide plate by lamp bar and pseudo-source reflection returns the light of light guide plate, so that lighting obtains bat aerofoil profile distribution curve flux.
It is preferred that this takes light ability distribution curve is be formed by connecting by one first distribution curve and one second distribution curve, and the light of this lamp bar is formed at this exiting surface of this distance light face end contiguous based on this first distribution curve and relatively has more light; And the light of this puppet light source is formed at this exiting surface of this incidence surface end contiguous based on this second distribution curve and relatively has more light. So, when the light of lamp bar relatively has more light based on this first distribution curve in this distance light face end formation contiguous, and the light of pseudo-light source based on this second distribution curve this incidence surface end contiguous formed relatively have more light go out under light form, lighting can have the projection light type of bat aerofoil profile.
Preferably, this first distribution curve is initially to be taken the reduction of light ability distribution curve to take light ability by one and form a relay curve, taken optical position distribution by this relay curve towards the compression of this incidence surface again and formed, and the light of this lamp bar initially takes light ability distribution curve according to this and light can be made all to go out light after this light guide plate;The light of this puppet light source can make light all go out light after this light guide plate according to this second distribution curve. So, the transmission of more light is allowed to make pseudo-source reflection to distance light face by reducing the light ability that takes initially taking light ability distribution curve, then through compression relay curve, and for being returned ray design second distribution curve of light guide plate by pseudo-source reflection, make all incidence of site adjustable being laid on light guide plate according to the first distribution curve and the second distribution curve or the light that reflexes to light guide plate go out light form.
It is preferred that make the end that this incidence surface adjoins this exiting surface form one first rake, this distance light face adjoins the end of this exiting surface and forms one second rake. So being used for allowing lamp bar be incident to the light of light guide plate is off-axis aspect with light guide plate axle center, is less susceptible to contact site and more light can be made to be transferred to distance light face, thus increasing the intensity of pseudo-light source.
It is preferred that the end that this incidence surface adjoins this bottom surface forms one first rake, this distance light face adjoins the end of this exiting surface and forms one second rake. In this similarly, utilizing the first rake and the second rake to be incident to the light of light guide plate by lamp bar is off-axis with light guide plate axle center, makes the some light from the injection of lamp bar be easier to be transferred to distance light face.
It is preferred that it is a compensatory reflex face that this light guide plate adjoins at least one side of this exiting surface and this bottom surface, the light being used for being directed to this compensatory reflex face is reflected back inside light guide plate. So prevent light to be projected to the external world via light guide plate side and cause energy dissipation, and the light propagation distance being returned light guide plate by pseudo-source reflection can be increased, thus promoting light utilization.
Preferably, lighting also has a ray guidance part, one first reflecting component and one second reflecting component, this first reflecting component outwards sequentially it is provided with by this bottom surface, this ray guidance part and this second reflecting component, this second reflecting component is to the end in distance light face extending for connection to this puppet light source, this ray guidance part is used for remotely and returning enter its interior light guiding to this light guide plate by this puppet source reflection, this first reflecting component is used for being projected to this light guide plate the light in the external world and is reflected back in this light guide plate, this second reflecting component is used for being projected to this ray guidance part the light in the external world and is reflected back in this ray guidance part. coordinate ray guidance part, the first reflecting component and the second reflecting component structure, using ray guidance part as another light conducting path, lamp bar can be effectively utilized to be introduced into the some light of light guide plate and be directed to remotely, reflect light back in light guide plate for pseudo-light source, thus increase pseudo-source reflection light intensity, the light being projected to outside is reflected back light guide plate and in ray guidance part, promotes overall light utilization efficiency by simultaneously arrange in pairs or groups the first reflecting component and the second reflecting component.
It is preferred that when this lamp bar has multiple luminous source, respectively this luminous source is that interval is arranged, and this site correspondence is laid between each this adjacent luminous source. It is used for reducing the impact of the light that luminous source is incident in light guide plate by site, and then increases the light being transferred to distance light face, it is preferred that, the region that more can make the corresponding each luminous source of light guide plate is minute surface or class minute surface.
The invention also discloses the method for designing of the light guide plate of a kind of above-mentioned lighting, it comprises the following steps:
Thering is provided a light guide plate, this light guide plate has a distance light face of an incidence surface and this incidence surface relatively, and this incidence surface is used for receiving lateral incident ray;
One pseudo-light source is provided, is a reflecting material and this distance light face being located at this light guide plate, is provided with the some light going out light without this light guide plate is reflected back this light guide plate;
Form one and take light ability distribution curve, wherein, this light ability that takes taking light ability distribution curve is towards the seriality curve that this side, distance light face is low-high-low by this incidence surface, this takes light ability distribution curve and is formed by connecting by one first distribution curve and one second distribution curve, and the light being laterally incident to this light guide plate is formed at this exiting surface of this distance light face end contiguous based on this first distribution curve and relatively has more light; The light of this puppet light source is formed at this exiting surface of this incidence surface end contiguous based on this second distribution curve and relatively has more light;
And take light ability distribution curve according to this one site is set in an exiting surface of this light guide plate or a bottom surface. Therefore, light form is gone out by site and adjustable light at light guide plate, to obtain bat aerofoil profile distribution curve flux.
Preferably, this first distribution curve is initially to be taken the reduction of light ability distribution curve to take light ability by one and form a relay curve, taken optical position distribution by this relay curve towards the compression of this incidence surface again and formed, and the light being laterally incident to this light guide plate initially takes light ability distribution curve according to this and light can be made all to go out light after this light guide plate; The light of this puppet light source can make light all go out light after this light guide plate according to this second distribution curve.
The transmission of more light is allowed to make pseudo-source reflection to distance light face by reducing the light ability that takes initially taking light ability distribution curve, the light being beneficial to for allotment is returned light guide plate by pseudo-source reflection then through compression relay curve goes out light form Design the second distribution curve, makes the site being laid on light guide plate according to the first distribution curve and the second distribution curve adjust light and goes out light form.
Meeting on the basis of this area general knowledge, above-mentioned each optimum condition, can combination in any, obtain the preferred embodiments of the invention.
The actively progressive effect of the present invention is in that:
The lighting that disclosed herein and the method for designing of light guide plate thereof, when single-sided illumination, light fixture can have the projection light type of preferably bat aerofoil profile distribution curve flux, reduces production cost. Light form is gone out compared to the light guide plate of tradition single-sided illumination, the present invention is using the pseudo-light source of reflecting material as auxiliary, coordinate according to taking the site that light ability distribution curve is arranged, lamp bar incident ray is adjusted with pseudo-source reflection light, and then obtains bat aerofoil profile distribution curve flux. In promoting the pseudo-intensity of light source, what the present invention also disclosed the various forms of light guide plate and light fixture further in multiple embodiments arranges structure, to increase pseudo-light source operational light, promotes the light utilization of entirety, it is prevented that light energy loss phenomenon simultaneously.
Accompanying drawing explanation
Fig. 1 is the perspective view of the lighting of the embodiment of the present invention 1.
Fig. 2 is the application schematic diagram of the lighting of the embodiment of the present invention 1.
Fig. 3 be the lighting of the embodiment of the present invention 1 take light ability distribution curve schematic diagram.
Fig. 4 is the first distribution curve design diagram of the lighting of the embodiment of the present invention 1.
Fig. 5 is the side view that the first of the lighting of the embodiment of the present invention 2 implements pattern.
Fig. 6 is the side view that the second of the lighting of the embodiment of the present invention 2 implements pattern.
Fig. 7 is the perspective view of the lighting of the embodiment of the present invention 3.
Fig. 8 is the side view of the lighting of the embodiment of the present invention 4.
Fig. 9 is the main TV structure schematic diagram of the lighting of the embodiment of the present invention 5.
Figure 10 is the flow chart of steps () of the method for designing of the light guide plate of the embodiment of the present invention 6.
Figure 11 is the flow chart of steps (two) of the method for designing of the light guide plate of the embodiment of the present invention 6.
Description of reference numerals:
1: lighting
10: light guide plate
101: incidence surface
102: distance light face
103: exiting surface
104: bottom surface
105: the first rakes
106: the second rakes
107: compensatory reflex face
11: lamp bar
111: luminous source
12: pseudo-light source
13: site
14: ray guidance part
15: the first reflecting components
16: the second reflecting components
L: take light ability distribution curve
L1: the first distribution curve
L2: the second distribution curve
A: initially take light ability distribution curve
B: relay curve
S101��S104: step
S1031��S1033: step
Detailed description of the invention
Mode by the examples below further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
For the defect of aforesaid conventional lamp, the present inventor conceives with the micro structure on light guide plate for starting point, by adjusting the factors such as shape or the arrangement form of micro structure, so that light guide plate has bat aerofoil profile distribution curve flux. owing to the light ability that takes of micro structure is the impact by its shape such as factor such as sectional area or the degree of depth, so the present inventor conceives in advance arranges, at light guide plate, the micro structure arranged symmetrically, and go out light form needed for foundation and make those micro structures be not belonging to single shape, such as those micro structures respectively by light guide plate incidence surface and opposite face thereof towards light guide plate center in being deep to shallow change, set up reflecting material at the opposite side of incidence surface simultaneously, by the light in aforementioned difform micro structure adjustment light source incidence to light guide plate and the light being reflected back light guide plate by reflecting material, and then form bat aerofoil profile distribution curve flux. but the light guide plate of this kind of tool change type micro structure, it is necessary to produced by injection molding, it is impossible to quickly move through and form micro structure on light guide plate as roller imprints mode, therefore increase production cost, and when light guide plate size is more big, its cost also improves relatively. additionally, once change the shape of micro structure, need to redesign corresponding model, this measure also can improve production cost and degree of difficulty. therefore, the present inventor then extends design lighting as disclosed herein.
Embodiment 1
Refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, its respectively the lighting of the present embodiment 1 perspective view, apply schematic diagram, take light ability distribution curve schematic diagram and the first distribution curve design diagram.
The present invention discloses a kind of lighting 1, can realize the effect with bat aerofoil profile distribution curve flux when single-sided illumination, and it includes the pseudo-light source 12 of light guide plate 10, lamp bar 11, one and a site 13. Light guide plate 10 has incidence surface 101, distance light face 102, exiting surface 103 and a bottom surface 104, and incidence surface 101 and distance light face 102 are for being oppositely arranged, and exiting surface 103 and two ends, bottom surface 104 are adjacent incidence surface 101 and distance light face 102 respectively, and also for being oppositely arranged.
Lamp bar 11 is arranged at the incidence surface 101 of light guide plate 10 and forms side direction type and enter light, makes light enter in light guide plate 10. Pseudo-light source 12 is a reflecting material, and is located at the distance light face 102 of light guide plate 10, is reflected back in light guide plate 10 for being penetrated by lamp bar 11 and going out the some light of light without light guide plate 10. Special one is mentioned that, the pseudo-light source 12 of the present invention is to refer to the non-actual light source that can provide light itself, therefore different objects is belonged to from lamp bar 11, as aforementioned, pseudo-light source 12 is reflecting material, with in reflection light plate 10 and do not formed out the some light of light by exiting surface 103, and adjust those light go out light distributional pattern, obtain bat aerofoil profile distribution curve flux in conjunction with the light going out light.
Site 13 takes light ability distribution curve L according to one and is arranged at exiting surface 103 or bottom surface 104, wherein taking the light ability that takes of light ability distribution curve L is towards the seriality curve that distance light face 102 is low-high-low by incidence surface 101, and it is short with the distance of incidence surface 101 compared with it with the distance in distance light face 102 to take the peak of curve position of light ability distribution curve L, therefore, after the light of lamp bar 11 laterally enters light guide plate 10, be obtained bat aerofoil profile distribution curve flux by can be allowed lighting 1 by aforementioned site 13, in the present embodiment, it is be laid in exiting surface 103 with site 13 for illustrating meaning. Peak of curve position owing to taking light ability distribution curve L is unequal with the distance of distance light face 102 and incidence surface 101, and therefore site 13 takes light ability in light guide plate 10 entirety can be asymmetric form, for adjusting the projection light type of lighting 1.
Wherein, this takes light ability distribution curve L by one first distribution curve L1And one second distribution curve L2It is formed by connecting, and the light of lamp bar 11 is based on the first distribution curve L1, and formed at the exiting surface 103 being close to distance light face 102 end and relatively have more light, the light of pseudo-light source 12 is based on the second distribution curve L2, and formed at the exiting surface 103 being close to incidence surface 101 end and relatively have more light. It is to say, after the light of lamp bar 11 enters light guide plate 10 by incidence surface 101, based on the first distribution curve L1In light guide plate 10 distribution, can present at contiguous distance light face 102 end and there is the form relatively having more light, and transmit to pseudo-light source 12 and be reflected back toward the light in light guide plate 10, based on the second distribution curve L2In light guide plate 10 distribution, presenting at contiguous incidence surface 101 end and have the form relatively having more light, therefore, lighting 1 can have the projection light type of bat aerofoil profile in use.
Specifically, the first distribution curve L1It is initially taken light ability distribution curve A reduction to take light ability by one and form a relay curve B, then is taken optical position distribution by relay curve B towards incidence surface 101 compression and formed. this initially takes light ability distribution curve A is by the size of light guide plate 10, material, the changing factors such as light guide plate 10 peripheral structure and lamp bar 11 brightness determine and are formed, when design, correlation curve can be drawn one by one according to different changing factors, such as aforesaid terms and conditions all can form the curve of correspondence, further, different weight proportions is set according to each condition, after each homologous thread is calculated based on weight proportion and merges, can initially be taken light ability distribution curve A, and the light foundation of lamp bar 11 initially takes light ability distribution curve A and light can be made all to go out light after light guide plate 10. then, reduce and take light ability and form relay curve B, use for pseudo-light source 12 to distance light face 102 discharging more light. then taken optical position by relay curve B towards incidence surface 101 compression to be distributed to form the first distribution curve L1, for pseudo-light source 12 part redesign and the first distribution curve L1The the second distribution curve L engaged2, and the light of pseudo-light source 12 is according to the second distribution curve L2Light can be made all to go out light after light guide plate 10, in conjunction with the first distribution curve L1And the second distribution curve L2Can obtaining and take light ability distribution curve L, site 13 is laid on light guide plate 10 according to taking light ability distribution curve L, and the light being incident to light guide plate 10 by lamp bar 11 with adjustment and the light being reflected back light guide plate 10 by pseudo-light source 12 go out light form.
Embodiment 2
Fig. 5 is the side view that the first of the lighting of the embodiment of the present invention 2 implements pattern.Implementing in pattern first, the end that light guide plate 10 incidence surface 101 adjoins exiting surface 103 is formed with one first rake 105, and distance light is exempted from the end of 102 adjacent exiting surfaces 103 and formed one second rake 106, as shown in Figure 5. Therefore, the light of lamp bar 11 is when incidence surface 101 is incident to light guide plate 10, main enter optical axis relative light guide plate 10 axial line be off-axis aspect, proceed to distance light face 102 guaranteeing that the light produced by lamp bar 11 can be more easy to, make puppet light source 12 can obtain more light to be reflected back towards in light guide plate 10.
Fig. 6 is the side view that the second of the lighting of the embodiment of the present invention 2 implements pattern. Implementing in pattern second, the first rake 105 forms the end adjoining bottom surface 104 at light guide plate 10 incidence surface 101, and the second rake 106 forms the end adjoining exiting surface 103 in light guide plate 10 distance light face 102, as shown in Figure 6. As it was previously stated, the master of lamp bar 11 can be made to enter optical axis by the first rake 105 and the second rake 106 form off-axis with light guide plate 10 axial line, light therefore can be made for pseudo-light source 12 more accessible to distance light face 102.
Embodiment 3
Fig. 7 is the perspective view of the lighting of the embodiment of the present invention 3. In the present embodiment, it is a compensatory reflex face 107 that light guide plate 10 adjoins at least one side of exiting surface 103 and bottom surface 104, and the light being used for being directed to this place is reflected back light guide plate 10 inside. Wherein, compensatory reflex face 107 can by paste in light guide plate 10 side silver reflection bar or coating reflection material formed at this place, no matter originate from the light of lamp bar 11 or be reflected back the light of light guide plate 10 via pseudo-light source 12, can effectively make light be reflected back inside light guide plate 10 by compensatory reflex face 107 when it transmits in light guide plate 10, reduce light diffusion or be projected to the loss phenomenon in the external world. Special one is mentioned that, it is not there is the first rake and the second rake for illustrating meaning with light guide plate 10 in the figure 7, but as aforementioned, when having the first rake and the second rake structure, light guide plate 10 adjoins the side of exiting surface 103 and bottom surface 104 and is alternatively compensatory reflex face 107, so that being sent and be incident to the some light in light guide plate 10 more accessible to distance light face 102 by lamp bar 11, and then strengthen pseudo-light source 12 intensity.
Embodiment 4
Fig. 8 is the side view of the lighting of the invention process 4. In the present embodiment, lighting 1 has ray guidance part 14,1 first reflecting component 15 and one second reflecting component 16. Outwards sequentially being provided with the first reflecting component 15, ray guidance part 14 and the second reflecting component 16 by light guide plate 10 bottom surface 104, the end in the corresponding distance light face 102 of the second reflecting component 16 extends for connection to pseudo-light source 12. After the light sent by lamp bar 11 is incident to light guide plate 10 by incidence surface 101, except transmitting to distance light end 102 some light utilized by pseudo-light source 12 via light guide plate 10, sent by lamp bar 11 but enter ray guidance part 14 some light, then can lead remotely and be reflected back in light guide plate 10 by pseudo-light source 12 by light thread guide 14, at this, use ray guidance part 14 as another light conducting path, effectively strengthen pseudo-light source 12 intensity, and make the light of lamp bar 11 all can fully be utilized.
Wherein, it is preferred that, ray guidance part 14 can be the sheet-like structure of guide-lighting material, and be class minute surface or mirror design, guides effect promoting the transmission for light, prevents light to be projected to external world's loss further. The first reflecting component 15 between light guide plate 10 and ray guidance part 14 is then used for being projected to light guide plate 10 light in the external world and is reflected back in light guide plate 10, promotes light utilization to lower the phenomenon of fiber-loss.Second reflecting component 16 is used for being projected to ray guidance part 14 in the light reflected light thread guide 14 in the external world, and the light loss phenomenon being used for reducing ray guidance part 14 produces. Therefore, by arranging the first reflecting component 15, ray guidance part 14 and the second reflecting component 16, except the intensity that can effectively strengthen pseudo-light source 12, it is possible to reduce light loss phenomenon and effectively promote light utilization, make lighting 1 obtain bat aerofoil profile distribution curve flux more preferably.
Also lighting 1 fit applications can be made to have the lamp bar 11 of bigger rising angle additionally, set up the first reflecting component 15, ray guidance part 14 and the second reflecting component 16, it is prevented that lamp bar 11 rising angle is excessive causes that light cannot enter light guide plate 10 inside totally and be utilized. Special one is mentioned that, 8 Fig. 8 are not there is the first rake and the second rake for illustrating meaning with light guide plate 10, but as aforementioned, when having the first rake and the second rake structure, lighting 1 also can be arranged in pairs or groups the first reflecting component 15, ray guidance part 14 and the second reflecting component 16 are set, so that some light is more accessible to distance light face 102, and then strengthen pseudo-light source 12 intensity.
Embodiment 5
Fig. 9 is the main TV structure schematic diagram of the lighting of the embodiment of the present invention 5. in the present embodiment, lamp bar 11 has multiple luminous source 111, each luminous source 111 is arranged for interval, site 13 is then corresponding to be arranged between each adjacent luminous source 111, as shown in Figure 9, site 13 is thus made to arrange simultaneously according to taking light ability distribution curve, restriction site 13 is only located at the region between the corresponding each adjacent luminous source 111 of exiting surface 103 or bottom surface 104 (as shown in Figure 1), make the main incident ray of each luminous source 111 on lamp bar 11 be less susceptible to contact site 13 and make the transmission of more light utilize for pseudo-light source 12 to distance light face 102, and then promote pseudo-light source 12 intensity.
Additionally it is preferred that can make corresponding each luminous source 111 region of exiting surface 103 or bottom surface 104 (as shown in Figure 1) is class minute surface or minute surface, to prevent light from being affected its transmission path by out-of-flatness surface. Special one is mentioned that, it is not there is the first rake and the second rake for illustrating meaning with light guide plate 10 in fig .9, but it has been observed that when having the first rake and the second rake structure, site 13 still can be made to be laid between each adjacent luminous source 111, and then strengthen pseudo-light source 12 intensity.
Embodiment 6
Such as Fig. 1��4 and Figure 10, shown in 11, Figure 10 and Figure 11 is flow chart of steps () and the flow chart of steps (two) of the method for designing of the light guide plate of the embodiment of the present invention 6. The present invention also discloses the method for designing of a kind of light guide plate being applied to lighting, including the following stated step.
Step S101, one light guide plate 10 is provided, light guide plate 10 has an incidence surface 101 and a distance light face 102 of relative incidence surface 101, incidence surface 101 is used for receiving lateral incident ray, and when light guide plate 10 is arranged on lighting 1, it is correspondingly provided with a lamp bar 11 to provide light to this light guide plate 10 at incidence surface 101.
Step S102, it is provided that a pseudo-light source 12, it is a reflecting material the distance light face 102 being located at light guide plate 10, is used for being reflected back in light guide plate 10 some light going out light without light guide plate 10. Wherein, pseudo-light source 12 refers to the non-actual light source through self providing light, and refers to that the light that will be transmitted to distance light face 102 is reflected back the object that light guide plate 10 is formed.
Step S103, forms one and takes light ability distribution curve L. Taking the light ability that takes of light power curve L by incidence surface 101 towards the seriality curve that distance light face 102 is low-high-low, as shown in Figure 4, taking light ability distribution curve L is by one first distribution curve L1And one second distribution curve L2It is formed by connecting, and is laterally incident to the light of light guide plate 10 based on the first distribution curve L1And formed at the exiting surface 103 being close to distance light face 102 end and relatively have more light;The light of pseudo-light source 12 is based on the second distribution curve L2And formed at the exiting surface 103 being close to incidence surface 101 end and relatively have more light. It is preferred that it is short with the distance of incidence surface 101 compared with it with the distance in distance light face 102 to take the peak of curve position of light ability distribution curve L.
Step S104, arranges exiting surface 103 or a bottom surface 104 at light guide plate 10, the site 13 according to taking light ability distribution curve L. Therefore, after light is entered light guide plate 10 by incidence surface 101, some light forms out light by site 13, and it has been observed that light can based on the first distribution curve L1Have at contiguous distance light face 102 end and relatively have more light, be reflected back the light of light guide plate 10 then based on the second distribution curve L by pseudo-light source 122Have at contiguous incidence surface 101 end and relatively have more light, so make light guide plate 10 go out the distribution curve flux that light form is bat aerofoil profile.
As shown in figure 11, the formation taking light ability distribution curve L is further illustrated at this.
Step S1031, is initially taken light ability distribution curve A reduction and takes light ability and form a relay curve B by one.
Step S1032, then taken optical position distribution by relay curve B towards incidence surface 101 compression and form the first distribution curve L1��
Step S1033, is formed and is engaged in the first distribution curve L1The second distribution curve L2, to obtain by the first distribution curve L1And the second distribution curve L2What be formed by connecting takes light ability distribution curve L.
The light being laterally incident to light guide plate 10 can make light all go out light after light guide plate 10 according to initially taking light ability distribution curve A, and the light of pseudo-light source 12 is according to the second distribution curve L2Light can be made all to go out light after light guide plate 10. First distribution curve L1, initially take the signal of light ability distribution curve A and relay curve B, see Fig. 3. As described in Example 1, initially take light ability distribution curve A by the size of light guide plate 10, shape, material, and the curve that the brightness of light guide plate 10 peripheral structure and lamp bar 11 etc. is corresponding to changing factor is combined formation, homologous thread is illustrated one by one according to every changing factor, revesting the weight proportion that each curve is different, each curve can obtain according to weight proportion calculating merging and initially take light ability distribution curve A.
The light guide plate 10 formed by this method for designing also can be designed further as it is shown in figure 5, the end adjoining exiting surface 103 at light guide plate 10 incidence surface 101 forms the first rake 105, and distance light face 102 adjoins the end of exiting surface 103 and forms the second rake 106; Or as shown in Figure 6, the end that light guide plate 10 incidence surface 101 adjoins bottom surface 104 forms the first rake 105, the end adjoining exiting surface 103 in light guide plate 10 distance light face 102 forms the second rake 106; Or as it is shown in fig. 7, making at least one side that light guide plate 10 adjoins exiting surface 103 and bottom surface 104 is a compensatory reflex face 107, to promote light guide plate 10 light utilization. When application is to lighting 1, can as shown in Figure 8, arrange in pairs or groups ray guidance part the 14, first reflecting component 15 and the second reflecting component 16, in order to promote pseudo-light source 12 intensity, and reduce fiber-loss. When light guide plate 10 with the use of lamp bar 11 there is multiple spaced luminous source 111 time, can be as shown in Figure 9, site 13 is made to arrange simultaneously according to taking light ability distribution curve L, only corresponding it is laid between each adjacent luminous source 111, and to allow the region of the corresponding each luminous source 111 of light guide plate 10 exiting surface 103 or bottom surface 104 be minute surface or class mirror surface structure.
In sum, the present invention discloses a kind of lighting and the method for designing of its light guide plate used, take, with foundation, the site that light ability distribution curve is laid by the setting of pseudo-light source, when in fact now with single sided lamp bar and single dot shape, lighting is made to obtain the purpose of bat aerofoil profile distribution curve flux, thus make product cost reduce and be prone to volume production, production efficiency is substantially improved. For promoting the intensity of pseudo-light source further, the first rake and the second rake can be formed at light guide plate, the incidence making lamp bar and pseudo-light source and the light primary optical axis reflexing to light guide plate are off-axis aspect with light guide plate axial line, or when lamp bar arranges luminous source for having multiple interval, site correspondence can be limited and be laid between each adjacent luminous source, said structure make the light that lamp bar sends be prone to arrive at distance light face and for pseudo-light source. More can arrange in pairs or groups ray guidance part, the first reflecting component and the second reflecting component of lighting uses, and is used for strengthening the pseudo-intensity of light source and promoting light utilization; Also can forming compensatory reflex face in light guide plate side, the light being directed to this place is reflected back in light guide plate, it is prevented that light outwards projects and causes light energy to consume, and then promotes light guide plate light utilization. And taken the design of light ability distribution curve by what the first distribution curve and the second distribution curve were formed by connecting, wherein this first distribution curve is taken light ability by initially taking the reduction of light ability distribution curve and forms relay curve, taken optical position distribution by relay curve towards incidence surface compression again and formed, thus then can effectively adjust according to the site taking the laying of light ability distribution curve and be incident to the light of light guide plate from lamp bar and returned the light of light guide plate by pseudo-source reflection, and then allow lighting present bat aerofoil profile distribution curve flux aspect.
Although the foregoing describing the specific embodiment of the present invention, it will be appreciated by those of skill in the art that these are merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is under the premise without departing substantially from principles of the invention and essence, it is possible to these embodiments are made various changes or modifications, but these change and amendment each falls within protection scope of the present invention.
Claims (10)
1. a lighting, it is characterised in that comprising:
One light guide plate, has an incidence surface, a distance light face, an exiting surface and a bottom surface, this incidence surface and this distance light face for being oppositely arranged, and this exiting surface and this two ends, bottom surface adjoin this incidence surface and this distance light face, this exiting surface and this bottom surface respectively also for being oppositely arranged;
One lamp bar, is located at this incidence surface of this light guide plate and forms side direction type and enter light;
One pseudo-light source, is a reflecting material and this distance light face being located at this light guide plate, and the some light being used for being penetrated by this lamp bar and going out without this light guide plate light is reflected back this light guide plate;
And a site, light ability distribution curve is taken according to one, it is arranged at this exiting surface or this bottom surface, wherein this light ability that takes taking light ability distribution curve is short with the distance of this incidence surface compared with it with the distance in this distance light face towards the seriality curve that this distance light face is low-high-low and peak of curve position by this incidence surface, is used for making this lighting obtain bat aerofoil profile distribution curve flux.
2. lighting as claimed in claim 1, it is characterized in that, this takes light ability distribution curve is be formed by connecting by one first distribution curve and one second distribution curve, and the light of this lamp bar is formed at this exiting surface of this distance light face end contiguous based on this first distribution curve and relatively has more light; And the light of this puppet light source is formed in this exiting surface of this incidence surface end contiguous based on this second distribution curve and relatively has more light.
3. lighting as claimed in claim 2, it is characterized in that, this first distribution curve is initially to be taken the reduction of light ability distribution curve to take light ability by one and form a relay curve, taken optical position distribution by this relay curve towards the compression of this incidence surface again and formed, and the light of this lamp bar initially takes light ability distribution curve according to this and light can be made all to go out light after this light guide plate; The light of this puppet light source can make light all go out light after this light guide plate according to this second distribution curve.
4. lighting as claimed in claim 1, it is characterised in that this incidence surface adjoins the end of this exiting surface and forms one first rake, this distance light face adjoins the end of this exiting surface and forms one second rake.
5. lighting as claimed in claim 1, it is characterised in that this incidence surface adjoins the end of this bottom surface and forms one first rake, this distance light face adjoins the end of this exiting surface and forms one second rake.
6. the lighting as described in any one of claims 1 to 3, it is characterised in that it is a compensatory reflex face that this light guide plate adjoins at least one side of this exiting surface and this bottom surface, the light being used for being directed to this compensatory reflex face is reflected back inside light guide plate.
7. the lighting as described in any one of claims 1 to 3, it is characterized in that, described lighting also has a ray guidance part, one first reflecting component and one second reflecting component, this first reflecting component outwards sequentially it is provided with by this bottom surface, this ray guidance part and this second reflecting component, this second reflecting component is to the end in distance light face extending for connection to this puppet light source, this ray guidance part is used for remotely and returning enter its interior light guiding to this light guide plate by this puppet source reflection, this first reflecting component is used for being projected to this light guide plate the light in the external world and is reflected back in this light guide plate, this second reflecting component is used for being projected to this ray guidance part the light in the external world and is reflected back in this ray guidance part.
8. the lighting as described in any one of claims 1 to 3, it is characterised in that this lamp bar has multiple luminous source, respectively this luminous source is that interval is arranged, and this site correspondence is arranged between each this adjacent luminous source.
9. the method for designing of the light guide plate of the lighting being applied to as described in any one of claim 1��8, it is characterised in that it comprises the following steps:
Thering is provided a light guide plate, this light guide plate has a distance light face of an incidence surface and this incidence surface relatively, and this incidence surface is used for receiving lateral incident ray;
One pseudo-light source is provided, is a reflecting material and this distance light face being located at this light guide plate, be used for the some light going out light without this light guide plate is reflected back this light guide plate;
Form one and take light ability distribution curve, wherein, this light ability that takes taking light ability distribution curve is towards the seriality curve that this distance light face is low-high-low by this incidence surface, this takes light ability distribution curve and is formed by connecting by one first distribution curve and one second distribution curve, and the light being laterally incident to this light guide plate is formed at this exiting surface of this distance light face end contiguous based on this first distribution curve and relatively has more light; The light of this puppet light source is formed at this exiting surface of this incidence surface end contiguous based on this second distribution curve and relatively has more light;
And take light ability distribution curve according to this one site is set in an exiting surface of this light guide plate or a bottom surface.
10. the method for designing of light guide plate as claimed in claim 9, it is characterized in that, this first distribution curve is initially to be taken the reduction of light ability distribution curve to take light ability by one and form a relay curve, taken optical position distribution by this relay curve towards the compression of this incidence surface again and formed, and the light being laterally incident to this light guide plate initially takes light ability distribution curve according to this and light can be made all to go out light after this light guide plate; The light of this puppet light source can make light all go out light after this light guide plate according to this second distribution curve.
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| CN201610133034.7A CN105650490A (en) | 2016-03-09 | 2016-03-09 | Lighting lamp and design method for light guide plate of lighting lamp |
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| CN108627903A (en) * | 2017-03-17 | 2018-10-09 | 江苏日月照明电器有限公司 | A kind of light emission rate is high and smooth surface uniformly, the light guide plate of no visual spot |
| CN109212656A (en) * | 2017-07-03 | 2019-01-15 | 京东方科技集团股份有限公司 | Leaded light component, backlight module and display device |
| CN110242874A (en) * | 2019-08-05 | 2019-09-17 | 成都工业学院 | A kind of thin lamp |
| CN111694087A (en) * | 2020-07-15 | 2020-09-22 | 惠科股份有限公司 | Backlight module and display device |
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