CN104280812A - Light guide assembly - Google Patents
Light guide assembly Download PDFInfo
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- CN104280812A CN104280812A CN201310275678.6A CN201310275678A CN104280812A CN 104280812 A CN104280812 A CN 104280812A CN 201310275678 A CN201310275678 A CN 201310275678A CN 104280812 A CN104280812 A CN 104280812A
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- light
- groove
- light guide
- component
- guide body
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- 238000004020 luminiscence type Methods 0.000 claims description 25
- 238000007373 indentation Methods 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000004907 flux Effects 0.000 description 25
- 238000012546 transfer Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 10
- 238000013461 design Methods 0.000 description 5
- 238000007598 dipping method Methods 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses a light guide assembly. The light guide assembly is used in cooperation with a light-emitting assembly for forming a light source module. The light-emitting assembly comprises a light-emitting area. The light guide assembly comprises a light guide body. The light guide body comprises a light inlet part and a bottom face. The light inlet part comprises a light inlet face and a groove. The light inlet face is connected to the bottom face in an adjacent mode. The light inlet face and the bottom face are used in cooperation for defining a bottom edge. The first direction parallel to the bottom edge is defined on the light guide body. The groove extends in the first direction. The length of the portion, in the second direction perpendicular to the first direction, of the groove ranges from 1/10 of the length of the portion, in the second direction, of the light-emitting area to 1/3 of the length of the portion, in the second direction, of the light-emitting area. The light quantity of light rays which enter the light guide body and are transmitted to the rear end face can be reduced, directivity is damaged, most of the light rays can be diverged in advance and emitted through a light outlet face, and therefore the light utilization rate of the light rays which are emitted into the light guide assembly is increased.
Description
Technical field
The present invention relates to a kind of leaded light component, espespecially a kind of leaded light component that effectively can improve efficiency of light.
Background technology
Consulting Fig. 1, is the structural representation of known luminaire module.Light source module 10 comprises light guide plate 12 and a luminescence component 14.Light guide plate 12 comprises incidence surface 120, exiting surface 122, bottom surface 124 and a rear end face 126, exiting surface 122 is adjacent to incidence surface 120, bottom surface 124 is in contrast to exiting surface 122 and be adjacent to incidence surface 120, and rear end face 126 is in contrast to incidence surface 120 and be adjacent to exiting surface 122 and bottom surface 124 simultaneously.Exiting surface 122 and/or bottom surface 124 are provided with the microstructure 128 of pattern-like.In FIG, microstructure 128 is the exiting surfaces 122 being arranged on light guide plate 12, and microstructure 128 is in order to extract light.
Luminescence component 14 arranges and is adjacent to incidence surface 120 and emits beam towards incidence surface 120, makes most light be entered light guide plate 12.Luminescence component 14 coordinates the light source module of formation one side-light type with light guide plate 12, by this, by most of light of incidence surface 120 incidence of light guide plate 12 side direction, and can by being positioned at the exiting surface 122 outwardly outgoing of light guide plate 12 forward.
The light entering light guide plate 12 can be divided three classes according to the difference of transfer mode: first kind light L1 is when touching exiting surface 122, scattering occurs part or refraction directly passes through exiting surface 122 bright dipping, part is reflected back light guide plate 12, and the design of microstructure 128 can control amount of light; Equations of The Second Kind light L2 is typically designed in bottom surface 124 experiences total internal reflection (totalinternal reflection) and then in light guide plate 12 internal delivery, Equations of The Second Kind light L2 is when being passed to the microstructure 128 of exiting surface 122, be equivalent to first kind light L1, scattering occurs part or refraction directly passes through exiting surface 122 bright dipping, and part is reflected back light guide plate 12 and lasts till that its energy is depleted.3rd lightlike line L3 directive property ground transmits towards the rear end face 126 of light guide plate 12, and forms aforementioned first kind light L1 or Equations of The Second Kind light L2 in distance light side.Light source module 10 corresponds to the distribution curve flux C1 at the visual angle shown in Fig. 1 as shown in Figure 2.
Shown in Fig. 2, because the 3rd lightlike line L3 has height directive property, must through longer light path, aforementioned first kind light L1 or Equations of The Second Kind light L2 and then bright dipping can be converted in the position comparatively close to the rear end face 126 of light guide plate 12, namely the 3rd lightlike line L3 is maximum at light guide plate 12 internal energy for meaning, but light extraction efficiency is the poorest, the light utilization ratio of light source module 10 is caused to reduce.Wherein, the light utilization ratio of light source module 10 refers to by the light of incidence surface 120 incidence and the ratio by the light of exiting surface 122 outgoing.
Although, also there is in the industry the design of processing incidence surface 120 microstructure, can the light quantity that provides of the light source module 10 of reception to promote light guide plate 12; But it is all conceived to light that atomizing light source module 10 provides or the light received by homogenising incidence surface 120, that is promotes the light quantity that light source module 10 enters into incidence surface 120.Under the definition of aforementioned smooth utilization ratio, and be helpless to promote the light being incided light guide plate 12 by incidence surface 120, with the ratio of the light by exiting surface 122 outgoing.The design of aforementioned processing incidence surface 120 microstructure, mostly also is the pattern of repetition layout, is helpless to process especially aforementioned 3rd lightlike line L3.
Summary of the invention
Described in prior art, the invention reside in and a kind of leaded light component is provided, this leaded light component can reduce and enters in it and be passed to the light quantity of the light of rear end face, destroy directive property, most light can be dispersed ahead of time, and then by exiting surface outgoing, use the light utilization ratio improving and be incident to the light of leaded light component.
An embodiment of the present invention provides a kind of leaded light component, leaded light component coordinates formation one light source module with at least one luminescence component, luminescence component has a light-emitting zone, leaded light component comprises a light guide body, light guide body has a light in part and a bottom surface, light in part has an incidence surface and a groove, incidence surface is adjacent to bottom surface, incidence surface and bottom surface define a base, light guide body defines a first direction parallel with base, groove extends along first direction, groove one perpendicular to the second direction of first direction length between light-emitting zone second direction length 1/10 to 1/3.
In other embodiment of the present invention, the angle of groove can be designed to 60 to 120 degree, specifically opens up light effect to obtain.
On the other hand, the structure of groove from profile view it, can be a first surface and a second surface formed, certainly also extensible design 1 the 3rd surface;
Profess it, groove coordinates with light guide body and defines a first surface and a second surface, and first surface is adjacent to incidence surface, and second surface is adjacent to incidence surface and first surface.
For example, first surface and second surface can be designed to plane in an embodiment, and first surface is adjacent to incidence surface with an angular slope, and second surface is connected to incidence surface and first surface with another angular slope.
In another embodiment, first surface can be designed to be approximately perpendicular to incidence surface, and second surface is then designed to be adjacent to incidence surface and first surface with an angular slope.
In yet, first surface can be designed to be approximately perpendicular to incidence surface, and second surface is then designed to be adjacent to incidence surface and first surface in arcuation.
Certainly, in other embodiments, groove also only can have the concave surface that a curvature is continuous distribution; Or be made up of a first surface, a second surface and one the 3rd surface, and then on cross section, present the connected structure of three line segments.
See it by another angle, in other embodiment of the present invention, groove can be made up of multiple depression be distributed in distance along first direction, also can be spaced along second direction by more than two, and at the indentation composition that first direction extends in parallel.
By technique scheme, the invention has the beneficial effects as follows:
By this, the groove of aforementioned all embodiments, the length of its second direction between light-emitting zone second direction length 1/10 to 1/3, can destroy valuably light source module the light type of directive property light that provides, change the distribution curve flux of light source module, promote the service efficiency of aforementioned 3rd lightlike line L3.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing light source module.
Fig. 2 is the distribution curve flux figure of the light source module shown in corresponding diagram 1.
Fig. 3 is the stereographic map of the light guide plate of first embodiment of the invention.
Fig. 4 is the structural representation of the light source module of first embodiment of the invention.
Fig. 5 is the distribution curve flux figure of the light source module shown in corresponding diagram 4.
Fig. 6 to Figure 10 is the distribution curve flux figure of the groove of the corresponding different angles of light source module of first embodiment of the invention.
Figure 11 is the structural representation of the leaded light component of second embodiment of the invention.
Figure 12 is the structural representation of the leaded light component of third embodiment of the invention.
Figure 13 is the structural representation of the leaded light component of four embodiment of the invention.
Figure 14 is the stereographic map of the leaded light component of fifth embodiment of the invention.
Figure 15 is the stereographic map of the leaded light component of sixth embodiment of the invention.
Figure 16 is the stereographic map of the leaded light component of seventh embodiment of the invention.
Figure 17 is the structural representation of the light source module of reverse teaching experimental example.
Figure 18 is the distribution curve flux figure of the light source module shown in corresponding Figure 17.
Symbol description
10,20,50 light source modules
12,22 light guide plate
120,220,320 incidence surfaces
122,222,342 exiting surfaces
124,224 bottom surfaces
126,226,340 rear end faces
128,228,346 microstructures
14,24,40 luminescence components
2200 protuberances
30,30A, 30B, 30C, 30D, 30E, 30F leaded light component
31,31A, 31B, 31C, 31D, 31E, 31F light guide body
32,32D, 32E, 32F light in part
322,322A, 322B, 322C, 322D, 322E, 322F, 323F groove 3220D, 3220F indentation
3220E, 3222F depression
324,324A, 324B, 324C first surface
326,326A, 326B second surface
33 bottom surfaces
330 bases
C1, C2, C3, C4, C5, C6, C7, C8 distribution curve flux
D1 first direction
D2 second direction
D3 third direction
L1 first light
L2 second light
L3 the 3rd light
Embodiment
Please refer to shown in accompanying drawing, extra object of the present invention, feature and advantage will through following multiple embodiments, and illustrative and non-limiting describing in detail are understood better.
Consulting Fig. 3, is the stereographic map of the leaded light component of first embodiment of the invention.Leaded light component 30 is use transparent resin material or transparent plastic, as: the tabular body that polymethylmethacrylate (Polymethylmethacrylate, PMMA) or polystyrene (Polystyrene, PS) are made; Leaded light component 30, in order to guide the direct of travel of incident light in the inner, is used and is provided a type light source.
Leaded light component 30 coordinates formation one light source module 50 with a luminescence component 40, as shown in Figure 4.Luminescence component 40 has a light-emitting zone 400, and light-emitting zone 400 refers to the place that luminescence component 40 can for emit beam.In the present embodiment, light source module 50 is side light type (side view) light source module.Luminescence component 40 can the light emitting diode (light emitting diode, LED) of such as (but not being restricted to) lateral direction light emission type (side view).
Consult Fig. 3 and Fig. 4 simultaneously.Leaded light component 30 has a light guide body 31, and light guide body 31 has light in part 32 and a bottom surface 33, and light in part 32 has incidence surface 320 and a groove 322.Incidence surface 320 is adjacent to bottom surface 33, incidence surface 320 and bottom surface 33 coordinate defines a base 330, light guide body 31 defines a first direction D1 parallel with base 330, groove 322 extends along first direction D1, groove 322 one perpendicular to the second direction D2 of first direction D1 length between light-emitting zone 400 second direction D2 length 1/10 to 1/3.Luminescence component 40 arranges incidence surface 320 side, and emits beam towards incidence surface 320.Through experiment, if groove 322 length does not meet the described restriction between light-emitting zone 400 length 1/10 to 1/3, then the light bag being difficult to effectively be sent by light-emitting zone 400 is launched, and forms useful destructive interference to light type.
In the present embodiment, groove 322 is positioned at the middle position of incidence surface 320 at second direction D2 just, and the opening surface of groove 322 is positioned at one perpendicular to the third direction D3 of first direction D1, and groove 322 is formed on light in part 32 continuously.Luminescence component 40 correspondence is arranged on groove 322 front, then not as limit during actual enforcement.This be noted that be greater than one when the quantity of luminescence component 40 time, then multiple luminescence component 40 is spaced along first direction D1, and the spacing of adjacent two luminescence components 40 is different and adjust according to the luminous intensity of each luminescence component 40.
Groove 322 and light guide body 31 define the second surface 326 that a first surface 324 and being adjacent to incidence surface 320 is adjacent to first surface 324 and incidence surface 320, first surface 324 and second surface 326 are respectively plane, and be adjacent to incidence surface 320 while there is an angular slope respectively, make groove 322 V-shaped and there is an angle theta.
The light that luminescence component 40 sends is by incidence surface 320, first surface 324 and second surface 326 enter light guide body 31, because first surface 324 and second surface 326 connect incidence surface 320 with having an angular slope respectively, therefore be different from the simple direction of transfer (as shown in Figure 4) being entered the light of light guide body 31 by incidence surface 320 by the direction of transfer that first surface 324 and second surface 326 enter the light of light guide body 31, it can destroy the directive property of light type valuably by this, make the most of light entering light guide body 31 can via exiting surface 342 outgoing, and then the luminescence efficiency of light source module 50 is improved.Wherein, exiting surface 342 is adjacent to incidence surface 320 and rear end face 340 in contrast to bottom surface 33.
In typical circumstances, light guide body 31 has two opposite sides 344, and each side 344 is adjacent to incidence surface 320, rear end face 340, exiting surface 342 and bottom surface 33 respectively.Groove 322 length be formed in light guide body 31 equals the length of side 344.So also not as limit, the design of present embodiment is groove 322 and light-emitting zone 400 ratio in a second direction d 2, groove 322 parameter designing in the first direction dl can based on the teaching of present embodiment from working as, and change with the light guide body 31 of various shape, such as two opposite sides 344 extend out in an angle or inside contract.
In order to the effect making leaded light component 30 reach even bright dipping, in exiting surface 342 and bottom surface 344, at least one is provided with the microstructure 346 of pattern-like.The microstructure 346 being arranged at exiting surface 342 is in order to scattered beam, makes light by the backward outer outgoing of exiting surface 342 (even if meaning light leaves light guide body 31); The microstructure 346 being arranged at bottom surface 344 is the light being passed to bottom surface 344 in order to reflection, enables light be passed to exiting surface 342, and by exiting surface 342 outwards outgoing (even if meaning light leaves light guide body 31).In the present embodiment, microstructure 346 is arranged on bottom surface 344 for example.Secondly, in order to make the light intensity uniform of the light by exiting surface 342 outgoing, the laying area of microstructure 346, layout density and lay light intensity that the degree of depth can be able to receive according to each microstructure and adjust, the laying area of such as (but not limiting) microstructure 346, layout density and the laying degree of depth and received light intensity are inversely proportional to.
Consulting Fig. 5, is the distribution curve flux figure of the light source module of corresponding diagram 4.Distribution curve flux C2 shown in Fig. 5 measures gained with the visual angle shown in Fig. 4; Incidence surface 320 is fit in each 90 degree of coordinate axis 0 degree of both sides online, and incidence surface 320 is aligned in coordinate axis 0 degree at the central point of second direction D2.Can learn by comparison diagram 2 and Fig. 5: in light guide body 31, form groove 322 effectively can reduce light intensity within the scope of each 10 degree of coordinate axis 0 degree of both sides; Secondly, light guide body 31 being formed groove 322 can make each 40 degree of the transmission angle of light coordinate axis as shown in Figure 20 degree of both sides rise to each about 45 degree of 0 degree of both sides of the coordinate axis shown in Fig. 5.Therefore, light guide body 31 is formed groove 322 and effectively can reduce the high directivity light quantity transmitted towards rear end face 340, and improve the light quantity being passed to exiting surface 342 and bottom surface 344, and then reach the effect improving light utilization ratio.
In addition, be noted that the angle theta of groove 322 affects light type change, Fig. 6 to Figure 10 is the distribution curve flux figure of the groove of the corresponding different angles of light source module of first embodiment of the invention.
The distribution curve flux figure that the groove that distribution curve flux C3 shown in Fig. 6 is corresponding angle 30 degree completes.Can learn by comparison diagram 2 and Fig. 6; Although the groove 322 that angle theta is 30 degree significantly reduces the intensity of the light being passed to rear end face 340, but also allow the light intensity being passed to each 20 to 30 degree positions, coordinate axis 0 degree of both sides reduce significantly simultaneously, cause the light entering light guide body 31 more weak in distance light side, and dipped beam side is too strong, i.e. coordinate axis 40 degree of obvious light splitting in position, the bright line of easy generation close to sources, causes light intensity entirety uneven, therefore is only limitted to special applications.
The distribution curve flux figure that the groove that distribution curve flux C4 shown in Fig. 7 is corresponding angle 60 degree completes.Can learn by comparison diagram 2 and Fig. 7: angle theta is the intensity that the groove 322 of 60 degree effectively reduces the light within the scope of each about 15 degree of coordinate axis 0 degree of both sides, reduces the light quantity being passed to rear end face 340.And the groove 322 that angle theta is 60 degree also allows the transmission angle of light reach each about 43 degree of coordinate axis 0 degree of both sides simultaneously, the light of coordinate axis 0 degree is made to be dispersed within the scope of each 15 to 43 degree in coordinate axis 0 degree of both sides, more light is allowed to touch exiting surface 342 and bottom surface 344 ahead of time, effectively improve light utilization ratio, be suitable for being applied in undersized light guide body 31.
The distribution curve flux figure that the groove that distribution curve flux C5 shown in Fig. 8 is corresponding angle 90 degree completes.Can learn by comparison diagram 2 and Fig. 8: angle theta is the intensity that the groove 322 of 90 degree reduces the light be passed within the scope of each about 5 degree of coordinate axis both sides, uses the light quantity reducing and be passed to rear end face 340.Because the ratio that coordinate axis 0 degree of direction reduces is less, compared to Fig. 7, be more suitable for the light guide body 31 being applied in middle size.Angle theta is the intensity that the groove 322 of 90 degree maintains the light within the scope of each 5 to 40 degree in coordinate axis both sides effectively, and makes the transmission angle of light reach the position of each about 43 degree of coordinate axis both sides.
The distribution curve flux figure that the groove that distribution curve flux C6 shown in Fig. 9 is corresponding angle 120 degree completes.Can learn by comparison diagram 2 and Fig. 9: angle theta is the intensity that the groove 322 of 120 degree can reduce the light be passed within the scope of each 15 to 40 degree in coordinate axis 0 degree of both sides.Secondly, the intensity of the light within the scope of each 0 to 15 degree in coordinate axis 0 degree of both sides is approximately identical to the intensity of the light of the distribution curve flux C1 shown in Fig. 2 within the scope of each 0 to 15 degree in coordinate axis 0 degree of both sides, use and avoid the light source module of long light path in the problem producing luminance shortage near rear end face 340 place, be suitable for being applied in large-sized light guide body 31.
The distribution curve flux figure that the groove that distribution curve flux C7 shown in Figure 10 is corresponding angle 150 degree completes.Can learn by comparison diagram 2 and Figure 10: the distribution curve flux C7 that the groove 322 that angle theta is 150 degree enters the light of light guide body 31 is approximately identical to the luminous intensity distribution district line C1 shown in Fig. 2, destroy the effect of light type and not obvious.
From foregoing teachings, the groove 322 of angle theta between 60 degree to 120 degree can reduce the light being passed to rear end face 340 effectively, and then reaches the raising of the smooth utilization ratio of light source module 50.
Consulting Figure 11, is the structural representation of the leaded light component of second embodiment of the invention.The leaded light component 30 of the leaded light component 30A shown in Figure 11 and the first embodiment is similar, and identical assembly indicates with identical symbol.It should be noted that, both difference is: the light guide body 31A of the leaded light component 30A shown in Figure 11 coordinates with groove 322A and defines an a first surface 324A and second surface 326A, first surface 324A is adjacent to incidence surface 320 and is approximately perpendicular to incidence surface 320, second surface 326A is designed to plane, and second surface 326A is adjacent to incidence surface 320 and first surface 324A with having an angular slope.
The direction of transfer entering the light of light guide body 31A by first surface 324A and second surface 326A is different from the direction of transfer of the light being entered light guide body 31A by incidence surface 320, use and reduce light and be directly passed to one in contrast to the end face 340 of incidence surface 320, make the most of light entering light guide body 31A can adjoin exiting surface 342 outgoing of incidence surface 320 and rear end face 340 via one, and then the luminescence efficiency of the light source module with leaded light component 30A is improved.The function of each assembly of leaded light component 30A and related description, in fact identical with the leaded light component 30 of the first embodiment, do not repeat them here.Leaded light component 30A at least can reach the function identical with leaded light component 30.
Coordinating and consult Figure 12, is the structural representation of the leaded light component of third embodiment of the invention.The leaded light component 30 of Figure 12 shownschematically leaded light component 30B and the first embodiment is similar, and identical assembly indicates with identical symbol.It should be noted that both difference is: the light guide body 31B of the leaded light component 30B shown in Figure 12 coordinates with groove 322B and defines an a first surface 324B and second surface 326B; First surface 324B is adjacent to incidence surface 320 and is approximately perpendicular to incidence surface 320, second surface 326B be arcuation be adjacent to incidence surface 320 and first surface 324B.
The direction of transfer entering the light of light guide body 31B by first surface 324B and second surface 326B is different from the direction of transfer of the light being entered light guide body 31B by incidence surface 320, use and reduce light and be directly passed to one in contrast to the rear end face 340 of incidence surface 320, make the most of light entering light guide body 31B can be adjacent to exiting surface 342 outgoing of incidence surface 320 and rear end face 340 via one, and then the luminescence efficiency of the light source module with leaded light component 30B is improved.The function of each assembly of leaded light component 30B and related description, in fact identical with the leaded light component 30 of the first embodiment, do not repeat them here.Leaded light component 30B at least can reach the function identical with leaded light component 30.
Consulting Figure 13, is the structural representation of the leaded light component of four embodiment of the invention.The leaded light component 30 of the leaded light component 30C shown in Figure 13 and the first embodiment is similar, and identical assembly indicates with identical symbol.It should be noted that, both difference is: the light guide body 31C of the leaded light component 30C shown in Figure 13 coordinates with groove 322C and defines an a first surface 324C and second surface 324C, first surface 324C is adjacent to incidence surface 320, and second surface 326C is adjacent to incidence surface 320 and first surface 324C; First surface 324C and second surface 326C is respectively cambered surface, and the curvature at first surface and the adjacent place of second surface is continuous distribution.
The direction of transfer entering the light of light guide body 31C by first surface 324C and second surface 326C is different from the direction of transfer of the light being entered light guide body 31C by incidence surface 320, use and reduce light and be directly passed to one in contrast to the rear end face 340 of incidence surface 320, make the most of light entering light guide body 31C can be adjacent to exiting surface 342 outgoing of incidence surface 320 and rear end face 340 via one, and then the luminescence efficiency of the light source module with leaded light component 30C is improved.The function of each assembly of leaded light component 30C and related description, in fact identical with the leaded light component 30 of the first embodiment, do not repeat them here.Leaded light component 30C at least can reach the function identical with leaded light component 30.
Consulting Figure 14, is the stereographic map of the leaded light component of fifth embodiment of the invention.The leaded light component 30 of the leaded light component 30D shown in Figure 14 and the first embodiment is similar, and identical assembly indicates with identical symbol.It should be noted that both difference is: the light in part 32D of the leaded light component 30D shown in Figure 14 is formed with a groove 322D be made up of multiple indentation 3220D.
Each indentation 3220D extends along first direction D1, and these indentations 3220D is equi-spaced apart arrangement along second direction D2.Each indentation 3220D in order to change incident light direction of transfer, can use and reduce the light quantity that the light entering light guide body 31D is passed to rear end face 340, and then reach the lifting of light interest rate efficiency.The function of each assembly of leaded light component 30D and related description, in fact identical with the leaded light component 30 of the first embodiment, do not repeat them here.Leaded light component 30D at least can reach the function identical with leaded light component 30.
Consulting Figure 15, is the stereographic map of the leaded light component of sixth embodiment of the invention.The leaded light component 30 of the leaded light component 30E shown in Figure 15 and the first embodiment is similar, and identical assembly indicates with identical symbol.It should be noted that both difference is: the light in part 32E of the leaded light component 30E shown in Figure 15 is formed with a groove 322E be made up of multiple depression 3220E.These depressions 3220E is equi-spaced apart arrangement along first direction D1.
Each depression 3220E can in order to change incident light direction of transfer, uses to reduce the light entering light guide body 31E and be passed to rear end face 340, and then reach the lifting of light interest rate efficiency.The function of each assembly of leaded light component 30E and related description, in fact identical with the leaded light component 30 of the first embodiment, do not repeat them here.Leaded light component 30E at least can reach the function identical with leaded light component 30.
Consulting Figure 16, is the stereographic map of the leaded light component of seventh embodiment of the invention.The leaded light component 30 of the leaded light component 30F shown in Figure 16 and the first embodiment is similar, and identical assembly indicates with identical symbol.It should be noted that both difference is: the light in part 32F of the leaded light component 30 shown in Figure 16 is formed with a groove 322F be made up of multiple indentation 3220F and multiple depression 3222F.Depression 3222F is equi-spaced apart arrangement along first direction D1, and depression 3222F is between two adjacent indentation 3220F, and these depressions 3222F and two adjacent indentation 3220F equally arranges.
These indentations 3220F and these depressions 3222F in order to change incident light direction of transfer, can use and reduce the light quantity that the light entering light guide body 31F is passed to rear end face 340, and then reach the lifting of light interest rate efficiency.The function of each assembly of leaded light component 30F and related description, in fact identical with the leaded light component 30 of the first embodiment, do not repeat them here.Leaded light component 30F at least can reach the function identical with leaded light component 30.
Consulting Figure 17, is the structural representation of the light source module of reverse teaching experimental example.People is for asking rigorous in this case creation, and experiment is as follows with reverse protuberance 2200 structure of aforementioned grooves: light source module 20 comprises light guide plate 22 and a luminescence component 24, and light guide plate comprises incidence surface 220, exiting surface 222, bottom surface 224 and a rear end face 226.Exiting surface 222 is adjacent to incidence surface 220, and bottom surface 224 is in contrast to exiting surface 222 and be adjacent to incidence surface 220, and rear end face 226 is in contrast to incidence surface 220 and be adjacent to exiting surface 222 and bottom surface 224.Exiting surface 222 and/or bottom surface 224 are provided with plural microstructure 228, and these microstructures 228 are in order to change the travel path of the light be passed on it.
Incidence surface 220 has a protuberance 2200 protruded in contrast to rear end face 226 direction, and luminescence component 24 correspondence is arranged at protuberance 2200 front, and emits beam towards incidence surface 220.Light source module 20 corresponds to the distribution curve flux C8 at the visual angle shown in Figure 17 as shown in figure 18.
Distribution curve flux C8 by distribution curve flux C1 and Figure 18 of comparison diagram 2 can learn, the protuberance 2200 being formed at incidence surface 220 can make the light quantity of the rear end face 226 being projected to light guide plate 22 promote, thus, the light quantity of exiting surface 222 outgoing can be caused more to reduce, and then cause the light utilization ratio of light source module 20 to reduce.
So as described above, be only better embodiment of the present invention, and when not limiting scope of the invention process, namely all equalizations done according to the present patent application the scope of the claims change and modify, and all still should belong to the category of patent covering scope of the present invention intention protection.
Claims (9)
1. leaded light component, coordinate formation one light source module with at least one luminescence component, described luminescence component has a light-emitting zone, it is characterized in that, described leaded light component comprises:
One light guide body, has a bottom surface;
One light in part, is positioned in described light guide body, has an incidence surface, and described incidence surface is adjacent to described bottom surface, and described incidence surface and described bottom surface define a base, described light guide body defines a first direction parallel with described base; And
One groove, is positioned at described light in part, and described groove extends along described first direction, described groove one perpendicular to the second direction of described first direction length between described light-emitting zone described second direction length 1/10 to 1/3.
2. leaded light component as claimed in claim 1, is characterized in that, the angle of wherein said groove is 60 to 120 degree.
3. leaded light component as claimed in claim 1, it is characterized in that, wherein said groove coordinates with described light guide body and defines a first surface and a second surface, and described first surface is adjacent to described incidence surface, and described second surface is adjacent to described incidence surface and described first surface.
4. leaded light component as claimed in claim 3, it is characterized in that, wherein said first surface and described second surface are respectively plane, described first surface is adjacent to described incidence surface with having an angular slope, and described second surface is connected to described incidence surface and described first surface with having an angular slope.
5. leaded light component as claimed in claim 3, it is characterized in that, wherein said first surface is approximately perpendicular to described incidence surface, and described second surface is adjacent to described incidence surface and described first surface with having an angular slope.
6. leaded light component as claimed in claim 3, it is characterized in that, wherein said first surface is approximately perpendicular to described incidence surface, described second surface be arcuation be adjacent to described incidence surface and described first surface.
7. leaded light component as claimed in claim 1, it is characterized in that, wherein said groove is made up of multiple depression be distributed in distance along described first direction.
8. leaded light component as claimed in claim 1, it is characterized in that, wherein said groove is spaced along described second direction by more than two, and at the indentation composition that described first direction extends in parallel.
9. leaded light component as claimed in claim 1, it is characterized in that, wherein said groove system, by multiple depression be distributed in distance along described first direction, is spaced along described second direction with more than two, and at the indentation composition that described first direction extends in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310275678.6A CN104280812A (en) | 2013-07-03 | 2013-07-03 | Light guide assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310275678.6A CN104280812A (en) | 2013-07-03 | 2013-07-03 | Light guide assembly |
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| Publication Number | Publication Date |
|---|---|
| CN104280812A true CN104280812A (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310275678.6A Pending CN104280812A (en) | 2013-07-03 | 2013-07-03 | Light guide assembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105511011A (en) * | 2016-02-02 | 2016-04-20 | 苏州星烁纳米科技有限公司 | Light guide plate, backlight module and display device |
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| WO2012026164A1 (en) * | 2010-08-24 | 2012-03-01 | シャープ株式会社 | Illumination device and display device |
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| CN1105855C (en) * | 1998-09-30 | 2003-04-16 | 电灯专利信托有限公司 | flat lighting device |
| CN100353225C (en) * | 2002-11-29 | 2007-12-05 | 富士通株式会社 | Light guide plate, lighting equipment and display equipment |
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| CN105511011B (en) * | 2016-02-02 | 2016-12-28 | 苏州星烁纳米科技有限公司 | Light guide plate, backlight module and display device |
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Application publication date: 20150114 |