CN104676296A - Light source module - Google Patents
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- CN104676296A CN104676296A CN201310616594.4A CN201310616594A CN104676296A CN 104676296 A CN104676296 A CN 104676296A CN 201310616594 A CN201310616594 A CN 201310616594A CN 104676296 A CN104676296 A CN 104676296A
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- 229920001577 copolymer Polymers 0.000 description 2
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- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
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Classifications
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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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a light source module. The light source module comprises a light guide plate, at least one lighting element and a lampshade; the light guide plate is equipped with a first surface, a second surface and a light incoming surface; the lighting element is arranged beside the light incoming surface and equipped with a light outgoing surface which faces the light incoming surface; the lampshade covers the lighting element and one end of the light guide plate, close to the light incoming surface; the lampshade comprises a side plate and an upper plate; the lighting element is arranged between the side plate and the light incoming surface; the upper plate is equipped with a first end, a second end relative to the first end, and at least one convex surface; the upper plate is connected with the side plate through the first end; the upper plate covers the lighting element and the part of the first surface, close to the light incoming surface; the convex surface is positioned right above the lighting element and protrudes toward the lighting element; the convex surface extends from one side of the upper plate, close to the first end to the second end. The light source module provides a high-uniformity surface light source.
Description
Technical field
The present invention about a kind of optical module, and particularly about a kind of light source module.
Background technology
Along with the evolution of photoelectric technology, be configured at cathode fluorescent tube (the cold cathode fluorescent lamp of the side of light guide plate in the prior art, CCFL) can replace by light emitting diode (light-emitting diode, LED) light-emitting section (light bar).Because light emitting diode has the advantages such as long service life, low power consumption, reaction speed be fast, therefore adopt light emitting diode as the performance of the light source module of light source and promoted service life.
But, the light sent due to light emitting diode has directive property, in the region of the therefore close light emitting diode of light guide plate, light near the optical axis being positioned at light emitting diode received by (namely just to light emitting diode place) is more and form clear zone, and away from light emitting diode optical axis place (namely oblique to light emitting diode place) received by light less and form dark space, this i.e. focus (hot spot) phenomenon.
In addition, because the luminous power of current light emitting diode is done larger and larger, the quantity of the light emitting diode therefore adopted in light source module can be fewer and feweri.Thus, the spacing between adjacent two light emitting diodes is just increasing, and this easily makes the area of dark space increasing, and then makes hot spot phenomenon more and more serious.
General reduce the area in clear zone in order to avoid light emitting diode light leak, above the incidence surface being usually covered in light emitting diode and light guide plate with light absorbent, but the waste of light emitting diode light energy can be caused.
The schematic diagram of the design light source module as shown in Figure 1A of another kind of prior art.Figure 1B is the schematic top plan view of a kind of light source module field of illumination of Figure 1A.The upper plate 131a of the lampshade 130a of light source module 100a is a flat board with reflecting effect.But, as shown in Figure 1B, because the light-emitting component 120 of light source module 100a has interval, and light-emitting component 120 has the restriction of the angle of divergence, in the region of the close light-emitting component 120 of light guide plate 110, light near the optical axis O being positioned at light-emitting component 120 received by (namely just to light-emitting component 120 place) is more and form clear zone BA, and less and form dark space DA in the light received by the optical axis O place (namely oblique to light-emitting component 120 place) away from light-emitting component 120.In other words, focus (hot spot) phenomenon is namely produced.On the other hand, if carry out the design of micro-structural (not shown) at the incidence surface 112 of light source module 100a, the subtended angle after light guide plate 110 can be entered to light beam and carry out shaping, only can eliminate the hot spot phenomenon of part, as shown in Figure 1 C.But this kind of mode can improve research and development and the production difficulty of light guide plate 110 structural design, and micro-structural and light emitting diode contraposition not easily, and improve product cost.
No. I358003rd, TaiWan, China patent discloses a kind of light shield with the bent convex cross section of an arc.No. 101881402Ath, People's Republic of China's patent discloses a kind of reflector with a concave structure inwall.No. 202253382Uth, People's Republic of China's patent discloses a kind of lamp reflector with deep groove structure.TaiWan, China patent discloses No. 201126239 and discloses the backlight module a kind of frame structure with multiple lug boss.No. M441849th, TaiWan, China patent discloses a kind of backlight module with improvement cover body structure.
Summary of the invention
The invention provides a kind of light source module, it can provide the area source with excellent homogeneity.
Other object of the present invention and advantage can be further understood from the technical characteristic disclosed by the present invention.
For reaching one of above-mentioned or partly or entirely object or other object, one embodiment of the invention propose a kind of light source module, and it comprises a light guide plate, at least one light-emitting component and a lampshade.Light guide plate has a first surface, connects first surface and second surface incidence surface relative to the second surface and of first surface.Light-emitting component is configured at by incidence surface, and only has an exiting surface, and exiting surface is in the face of incidence surface.One end of the close incidence surface of lampshade covering luminous element and light guide plate, lampshade comprises side plate and a upper plate.Light-emitting component is configured between side plate and incidence surface.Upper plate has a first end, relative to the second end of first end and at least one crowning.Upper plate is connected with side plate by first end, and the part of the close incidence surface of upper plate covering luminous element and first surface.Crowning to be positioned at directly over light-emitting component and protruding towards light-emitting component, and crowning extends from the side of close the first end of upper plate is past near the side of the second end.
In one embodiment of this invention, the width of above-mentioned crowning on the direction being parallel to incidence surface successively decreases near the side of first end toward the side near the second end.
In one embodiment of this invention, the bending surface that above-mentioned crowning is formed for multiple plane.
In one embodiment of this invention, above-mentioned crowning is curved surface.
In one embodiment of this invention, the number of above-mentioned at least one light-emitting component is multiple, and the number of at least one crowning is multiple, these light-emitting components are along the direction arrangement being parallel to incidence surface, and these crownings are along the bearing of trend arrangement being parallel to upper plate.
In one embodiment of this invention, the number of above-mentioned at least one light-emitting component is multiple, and the number of at least one crowning is multiple, these light-emitting components are along the direction arrangement being parallel to incidence surface, and these crownings are along the bearing of trend arrangement being parallel to upper plate.Upper plate also has multiple first concave face, and these crownings and these the first concave faces are alternately arranged along the bearing of trend of upper plate, and the depression direction of the first concave face is contrary with the protrusion direction of crowning.
In one embodiment of this invention, the width of above-mentioned each first concave face on the direction being parallel to incidence surface successively decreases near the side of first end toward the side near the second end.
In one embodiment of this invention, above-mentioned crowning is curved surface, and the first concave face is curved surface.
In one embodiment of this invention, the first above-mentioned concave face is curved surface.
In one embodiment of this invention, the Breadth Maximum of above-mentioned crowning on the direction being parallel to incidence surface and first surface is greater than zero and is less than or equal to 1.75 times of the width of exiting surface on the direction being parallel to incidence surface and first surface.
In one embodiment of this invention, above-mentioned lampshade also comprises a lower plate, and its latus inframedium connects upper plate and lower plate, and lower plate covers the part of the close incidence surface of second surface, and upper plate and lower plate lay respectively at the relative both sides of light-emitting component.
Based on above-mentioned, the light source module of embodiments of the invention is through the crowning structural design on lampshade, the light beam that light-emitting component can be made to send is reflexed in light guide plate with different angles after the reflection of the zones of different of lampshade, and therefore can improve the situation of the Light distribation inequality between light-emitting component, and the Energy distribution uniformity that light beam coupling that light-emitting component sends enters light guide plate can be promoted, to provide the area source with excellent homogeneity, and eliminate dark area effect.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
Accompanying drawing explanation
Figure 1A is the schematic diagram of a kind of light source module of prior art.
Figure 1B is the schematic top plan view of the light source module field of illumination of Figure 1A.
Fig. 1 C is the schematic top plan view of the another kind of light source module field of illumination of Figure 1A.
Fig. 2 A is the schematic perspective view of a kind of light source module of one embodiment of the invention.
Fig. 2 B is the light path schematic diagram on the light source module A-A ' section of Fig. 2 A embodiment.
Fig. 2 C is the light path schematic diagram on the light source module B-B ' section of Fig. 2 A embodiment.
Fig. 3 A is the light path schematic diagram of the light beam of the light source module of Fig. 2 B embodiment.
Fig. 3 B is the light path schematic diagram of another light beam of the light source module of Fig. 2 C embodiment.
Fig. 4 is the schematic perspective view of a kind of light source module of another embodiment of the present invention.
Fig. 5 is the schematic perspective view of a kind of light source module of further embodiment of this invention.
Fig. 6 is the schematic perspective view of a kind of light source module of yet another embodiment of the invention.
Detailed description of the invention
Aforementioned and other technology contents, feature and effect for the present invention, in the detailed description of the preferred embodiment of following cooperation accompanying drawing, can clearly present.The direction term mentioned in following examples such as: upper and lower, left and right, front or rear etc., is only the direction with reference to accompanying drawing.Therefore, the direction term of use is used to illustrate and is not used for limiting the present invention.
Fig. 2 A is the schematic perspective view of a kind of light source module 100 of one embodiment of the invention.Fig. 2 B is the light path schematic diagram on the light source module A-A ' section of Fig. 2 A embodiment.Fig. 2 C is the light path schematic diagram on the light source module B-B ' section of Fig. 2 A embodiment.Please refer to Fig. 2 A, in the present embodiment, light source module 100 comprises a light guide plate 110, at least one light-emitting component 120 and a lampshade 130.Light guide plate 110 has a first surface 111, one relative to the second surface 113 of first surface 111 and the incidence surface 112 of a connection first surface 111 and second surface 113, wherein first surface 111 is such as the exiting surface of light guide plate 110, and second surface 113 is such as the bottom surface of light guide plate 110.In the present embodiment, the material of light guide plate 110 can be the compound of high transmission rate.For example, the material of light guide plate 110 is such as acryl (Polymethyl Methacrylate, PMMA), polycarbonate resin (Polycarbonate, PC), cyclic olefine copolymer (Cycloolefin Copolymer, COC), glass or other guide-lighting material be applicable to.
It is other that light-emitting component 120 is configured at incidence surface 112, in order to provide a light beam, and can only have an exiting surface 121, and exiting surface 121 is in the face of incidence surface 112.In the present embodiment, light beam such as can be illuminating bundle, and light-emitting component 120 such as can be light emitting diode, but the present invention is not limited thereto, and in the embodiment that other is feasible, light-emitting component 120 also can be the spot light of other kenel.In addition, in the present embodiment, light source module 100 also comprises a flexible circuit board 140, is electrically connected with light-emitting component 120, to control light-emitting component 120.
On the other hand, lampshade 130 comprises a upper plate 131, side plate 133 and a lower plate 135, and one end of the close incidence surface 112 of lampshade 130 covering luminous element 120 and light guide plate 110.Specifically, in the present embodiment, lampshade 130 has good light reflectivity, and for example, the material of lampshade 130 such as can be metal, and can folded light beam.More specifically, in the present embodiment, the upper plate 131 of lampshade 130 has a first end TE1, relative to the second end TE2 of first end TE1 and at least one crowning PS.In addition, upper plate 131 also has at least one concave face HS relative to crowning PS.Specifically, concave face HS caves in towards light-emitting component 120, and concave face HS and crowning PS is conformal.
Furthermore, referring to Fig. 2 A and Fig. 2 B, in the present embodiment, upper plate 131 is connected with side plate 133 by first end TE1, and the part of the close incidence surface 112 of upper plate 131 covering luminous element 120 and first surface 111.Crowning PS to be positioned at directly over light-emitting component 120 and protruding towards light-emitting component 120, and crowning PS is from the side of close the first end TE1 of upper plate 131 toward extending near the side of the second end TE2 (such as extension in the y-direction).More specifically, in the present embodiment, the number of above-mentioned at least one light-emitting component 120 is multiple, and the number of at least one crowning PS is multiple, these light-emitting components 120 arrange along the direction D1 being parallel to incidence surface 112, and these crownings PS arranges along the bearing of trend D2 being parallel to upper plate 131.In the present embodiment, direction D1 and direction D2 is parallel to x direction, but the present invention is not limited thereto.
In addition, the side plate 133 of lampshade 130 connects upper plate 131 and lower plate 135, and light-emitting component 120 is between side plate 133 and incidence surface 112.The lower plate 135 of lampshade 130 covers the part of the close incidence surface 112 of second surface 113, and upper plate 131 and lower plate 135 lay respectively at the relative both sides of light-emitting component 120.In the present embodiment, the mode making lampshade 130 such as can utilize impact style to be shaped, and to make the required form of upper plate 131, side plate 133 and lower plate 135, but the present invention is not limited thereto.
Continue referring to Fig. 2 B, specifically, in the present embodiment, the light beam 60 that light-emitting component 120 sends from exiting surface 121 can enter light guide plate 110 by incidence surface 112, and advances with total reflection behavior in light guide plate 110 inside and conduct.And the second surface 113 of light guide plate 110 can have multiple scattering micro-structural 115, to destroy total reflection phenomenon.So, light beam 60 never can be left light guide plate 110 by the part first surface 111 that lampshade 130 covers, and provides external light source.But in other embodiments, scattering micro-structural 115 also can be positioned at the first surface 111 of light guide plate 110, or be positioned at first surface 111 and second surface 113 simultaneously.
On the other hand, light source module 100 also can comprise one and is positioned at reflector element 150 below light guide plate 110.The light beam 70 scattering to reflector element 150 can be reflected back light guide plate 110 by reflector element 150 again, and makes light beam 70 sequentially penetrate second surface 113 and first surface 111, and leaves light guide plate 110, increases light utilization ratio.In addition, because the lampshade 130 of the present embodiment has good light reflectivity, therefore when light beam 70 the part first surface 111 that covers by lampshade 130 be scattered out time, then can be reflected by lampshade 130 and again enter in light guide plate 110 and transmit.And when light beam 70 be scatter at the part first surface 111 do not covered by lampshade 130 time, then can leave light guide plate 110 and external light source is provided.
In addition, please refer to Fig. 2 B and Fig. 2 C, in the present embodiment, after light beam 80,90 self-emission device 120 sends, can reflect via the zones of different of lampshade 130, and reflex in light guide plate 110 with different angles, contribute to the situation of the Light distribation inequality improved between light-emitting component 120, and promote the Energy distribution uniformity that light beam coupling that light-emitting component 120 sends enters light guide plate.Below will arrange in pairs or groups Fig. 3 A to Fig. 3 B, be further detailed.
Below will arrange in pairs or groups Fig. 3 A to Fig. 3 B again, and the mechanism how eliminating dark space and hot spot phenomenon for crowning PS structural design of the present invention is described in detail.
Fig. 3 A is the light path schematic diagram of the light beam of the light source module of Fig. 2 A embodiment.Please refer to Figure 1B, Fig. 2 A, Fig. 2 B and Fig. 3 A, in the present embodiment, after light beam 80 self-emission device 120 sends, can be reflected by the crowning PS of lampshade 130.Specifically, as shown in Figure 3A, after light beam 80 reflects via the crowning PS of lampshade 130, by toward the diagonally forward transmission of light-emitting component 120, and do not transmit on the A-A ' section of Fig. 2 A, and the dotted line shown in Fig. 2 B represents the projection components of light beam 80 on A-A ' section.Therefore, in light guide plate 110 region between the optical axis O that light beam 80 can be incident to adjacent two light-emitting components 120, and light guide plate 110 is scattered out in the part (being such as the dark space DA shown in Figure 1B) near incidence surface 112.So, the light beam 80 that reflects by zones of different on crowning PS of light source module 100 is to eliminate dark space DA and hot spot phenomenon.
Furthermore, in the present embodiment, the bending surface that crowning PS can be multiple plane P Sa, PSb, PSc are formed.In other words, Fig. 3 A illustrates three plane P Sa, PSb, PSc, the cross section of crowning PS in xz plane is such as inverted trapezoidal, but in other unshowned embodiment, crowning PS can be the bending surface that two planes are formed, and the cross section in xz plane is such as triangle, but the present invention is not limited thereto.Furthermore, as shown in Figure 2 A, the width of crowning PS on the direction D1 being parallel to incidence surface 112 successively decreases near the side of first end TE1 toward the side near the second end TE2.More specifically, in the present embodiment, as shown in Fig. 2 B and Fig. 3 A, the Breadth Maximum C of crowning PS on the direction D1 being parallel to incidence surface 112 and first surface 111 is greater than zero and is less than or equal to 1.75 times of the width L of exiting surface 121 on the direction D1 being parallel to incidence surface 112 and first surface 111, but the present invention is not limited thereto.In addition, it should be noted, above-mentioned number range only illustratively illustrates, it is also not used to limit the present invention.
Fig. 3 B is the light path schematic diagram of another light beam of the light source module of Fig. 2 A embodiment.Please refer to Figure 1B, Fig. 2 A, Fig. 2 C and Fig. 3 B, in the present embodiment, light beam 90 also can via region (such as the plane FS shown in Fig. 3 B) reflection beyond the crowning PS of lampshade 130.As shown in Figure 3 B, light beam 90, after the plane FS via lampshade 130 reflects, also toward the diagonally forward transmission of light-emitting component 120, and can not transmit on the B-B ' section of Fig. 2 A, and the dotted line shown by Fig. 2 C represents the projection components of light beam 90 on B-B ' section.Therefore, light beam 90 also can different angles be incident to adjacent two light-emitting components 120 optical axis O between light guide plate 110 region in transmit, and be scattered out light guide plate 110 in the part (being such as the dark space DA shown in Figure 1B) near incidence surface 112.Furthermore, the angle reflected by lampshade 130 due to light beam 80,90 is also inconsistent, and the bang path in light guide plate 110 is not identical yet, therefore can scatter light guide plate 110 by zones of different, more contributes to eliminating dark space DA and hot spot phenomenon.
Thus, light source module 100 is through the crowning PS structural design on lampshade 130, the light beam 80,90 that light-emitting component can be made to send is reflexed in light guide plate 110 with different angles after the reflection of the zones of different of lampshade 130, and therefore can improve the situation of the Light distribation inequality between light-emitting component 120, and the Energy distribution uniformity that light beam coupling that light-emitting component 120 sends enters light guide plate 110 can be promoted, to provide the area source with excellent homogeneity, and eliminate dark area effect.
Though it should be noted that the crowning PS of aforementioned lampshade 130 be the bending surface that formed with multiple plane P Sa, PSb, PSc for illustrating, the present invention is not limited to this.Below will arrange in pairs or groups Fig. 4 to Fig. 6, make further instructions for may changing of lampshade 130.
Fig. 4 is the schematic perspective view of a kind of light source module of another embodiment of the present invention.Please refer to Fig. 4, the light source module 400 of the present embodiment is similar with the light source module 100 of Fig. 2 A embodiment, and difference is as described below.In the present embodiment, the crowning PS ' of lampshade 430 is curved surface.Because light source module 400 and the architectural difference of light source module 100 are mainly crowning PS, PS of lampshade 130,430 ' be respectively the bending surface that curved surface or multiple plane formed, but light beam can be realized equally by the effect reflexed to different angles after the reflection of the zones of different of lampshade 130,430 in light guide plate 110, therefore, light source module 400 has the advantage mentioned by light source module 100 equally, just repeats no more at this.In addition, crowning PS ' because of in curved surface, and can realize effect that light is dispersed further.
Fig. 5 is the schematic perspective view of a kind of light source module 500 of further embodiment of this invention.Please refer to Fig. 5, the light source module 500 of the present embodiment is similar with the light source module 400 of Fig. 4 embodiment, and difference is as described below.In the present embodiment, the upper plate 531 of lampshade 530 also has multiple first concave face HS1, these crownings PS ' is alternately arranged along the bearing of trend D2 of upper plate 531 with these first concave faces HS1, and the depression direction H1 of the first concave face HS1 is contrary with the protrusion direction P1 of crowning PS.In addition, more specifically, in the present embodiment, the first concave face HS1 is curved surface, and the width D of each the first concave face HS1 on the direction being parallel to incidence surface 112 is successively decreased near the side of first end TE1 toward the side near the second end TE2.Because light source module 500 and the architectural difference of light source module 400 are mainly the presence or absence of multiple first concave face HS1, but light beam can be realized equally by the effect reflexed to different angles after the reflection of the zones of different of lampshade 530 in light guide plate 110, therefore, light source module 500 has the advantage mentioned by light source module 400 equally, just repeats no more at this.In addition, because the first concave face HS1 is also in curved surface, the effect that light beam is assembled can be realized further, and the brightness in light guide plate 110 region (being such as the dark space DA shown in Figure 1B) between the optical axis O that can promote adjacent two light-emitting components 120 further, more contribute to eliminating dark space DA and hot spot phenomenon.
Fig. 6 is the schematic perspective view of a kind of light source module of yet another embodiment of the invention.Please refer to Fig. 6, the light source module 600 of the present embodiment is similar with the light source module 500 of Fig. 5 embodiment, and difference is as described below.In the present embodiment, the bending surface that formed for multiple plane of the crowning PS of lampshade 630.Because light source module 600 and the architectural difference of light source module 500 are mainly the bending surface that crowning PS ', the PS of lampshade 530,630 are respectively curved surface or multiple plane and are formed, but light beam can be realized equally by the effect reflexed to different angles after the reflection of the zones of different of lampshade 530,630 in light guide plate 110, therefore, light source module 600 has the advantage mentioned by light source module 500 equally, just repeats no more at this.
In sum, the light source module of embodiments of the invention is through the crowning structural design on lampshade, the light beam that light-emitting component can be made to send is reflexed in light guide plate with different angles after the reflection of the zones of different of lampshade, and therefore can improve the situation of the Light distribation inequality between light-emitting component, and the Energy distribution uniformity that light beam coupling that light-emitting component sends enters light guide plate can be promoted, to provide the area source with excellent homogeneity, and eliminate dark area effect.
The foregoing is only the preferred embodiments of the present invention, can not limit scope of the invention process with this, namely all simple equivalences done according to the claims in the present invention and description change and amendment, all still belong to the scope that patent of the present invention covers.Any embodiment of the present invention or claim must not realize whole object disclosed by the present invention or advantage or feature in addition.In addition, summary and denomination of invention are only used to the use of auxiliary patent document retrieval, are not used for limiting interest field of the present invention.In addition, " first ", " second " of mentioning in this description or claim etc. only in order to name the title of element (element) or to distinguish different embodiment or scope, and is not used for the quantitative upper limit of limiting element or lower limit.
[symbol description]
60,70,80,90: light beam
100,100a, 400,500,600: light source module
110: light guide plate
111: first surface
112: incidence surface
113: second surface
115: scattering micro-structural
120: light-emitting component
121: exiting surface
130,130a, 430,530,630: lampshade
131,131a, 531: upper plate
133: side plate
135: lower plate
140: flexible circuit board
150: reflector element
TE1: first end
TE2: the second end
PS, PS ': crowning
HS: concave face
HS1: the first concave face
PSa, PSb, PSc, FS: plane
O: optical axis
BA: clear zone
DA: dark space
C, L, D: width
D1, D2, H1, P1, x, y, z: direction
Claims (11)
1. a light source module, comprises a light guide plate, at least one light-emitting component and a lampshade,
Described light guide plate has a first surface, connects described first surface and described second surface incidence surface relative to the second surface and of described first surface,
Described at least one light-emitting component is configured at by described incidence surface, and described light-emitting component only has an exiting surface, described incidence surface faced by described exiting surface,
Described lampshade covers one end of the close described incidence surface of described light-emitting component and described light guide plate, described lampshade comprises side plate and a upper plate, wherein, described light-emitting component is configured between described side plate and described incidence surface, described upper plate has a first end, one relative to the second end of described first end and at least one crowning, wherein said upper plate is connected with described side plate by described first end, and described upper plate covers the part of the close described incidence surface of described light-emitting component and described first surface, described crowning to be positioned at directly over described light-emitting component and protruding towards described light-emitting component, and described crowning extends from the side of the close described first end of described upper plate is past near the side of described second end.
2. light source module as claimed in claim 1, is characterized in that, the width of described crowning on the direction being parallel to described incidence surface successively decreases near the side of described first end toward the side near described second end.
3. light source module as claimed in claim 1, is characterized in that, the bending surface that described crowning is formed for multiple plane.
4. light source module as claimed in claim 1, it is characterized in that, described crowning is curved surface.
5. light source module as claimed in claim 1, it is characterized in that, the number of described at least one light-emitting component is multiple, and the number of described at least one crowning is multiple, these light-emitting components are along the direction arrangement being parallel to described incidence surface, and these crownings are along the bearing of trend arrangement being parallel to described upper plate.
6. light source module as claimed in claim 1, it is characterized in that, the number of described at least one light-emitting component is multiple, and the number of described at least one crowning is multiple, these light-emitting components are along the direction arrangement being parallel to described incidence surface, and these crownings are along the bearing of trend arrangement being parallel to described upper plate, described upper plate also has multiple first concave face, these crownings and these the first concave faces are alternately arranged along the bearing of trend of described upper plate, and the depression direction of these the first concave faces is contrary with the protrusion direction of described crowning.
7. light source module as claimed in claim 6, is characterized in that, the width of the first concave face on the direction being parallel to described incidence surface described in each successively decreases near the side of described first end toward the side near described second end.
8. light source module as claimed in claim 6, it is characterized in that, these crownings are curved surface, and these first concave faces are curved surface.
9. light source module as claimed in claim 6, it is characterized in that, these first concave faces are curved surface.
10. light source module as claimed in claim 1, it is characterized in that, the Breadth Maximum of described crowning on the direction being parallel to described incidence surface and described first surface is greater than zero and is less than or equal to 1.75 times of the width of described exiting surface on the direction being parallel to described incidence surface and described first surface.
11. light source modules as claimed in claim 1, it is characterized in that, described lampshade also comprises a lower plate, wherein said side plate connects described upper plate and described lower plate, described lower plate covers the part of the close described incidence surface of described second surface, and described upper plate and described lower plate lay respectively at the relative both sides of described light-emitting component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616594.4A CN104676296B (en) | 2013-11-27 | 2013-11-27 | Light source module |
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| CN201310616594.4A CN104676296B (en) | 2013-11-27 | 2013-11-27 | Light source module |
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| CN104676296B CN104676296B (en) | 2017-05-17 |
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| CN106094096A (en) * | 2016-08-17 | 2016-11-09 | 京东方科技集团股份有限公司 | A kind of light guide plate, backlight module and display device |
| CN113710952A (en) * | 2019-04-29 | 2021-11-26 | 昕诺飞控股有限公司 | Light emitting apparatus |
| CN113710952B (en) * | 2019-04-29 | 2024-05-31 | 昕诺飞控股有限公司 | Light emitting device |
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| CN113710952B (en) * | 2019-04-29 | 2024-05-31 | 昕诺飞控股有限公司 | Light emitting device |
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| Publication number | Publication date |
|---|---|
| CN104676296B (en) | 2017-05-17 |
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