CN104676296B - Light source module - Google Patents
Light source module Download PDFInfo
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- CN104676296B CN104676296B CN201310616594.4A CN201310616594A CN104676296B CN 104676296 B CN104676296 B CN 104676296B CN 201310616594 A CN201310616594 A CN 201310616594A CN 104676296 B CN104676296 B CN 104676296B
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- light source
- emitting component
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- 238000005286 illumination Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 2
- 230000003752 improving hair Effects 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
Landscapes
- 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 on a kind of optical module, and especially with regard to a kind of light source module.
Background technology
With the evolution of photoelectric technology, the cathode fluorescent tube of the side of light guide plate is configured in the prior art
（cold cathode fluorescent lamp,CCFL）Can be by light emitting diode（light-emitting diode,
LED）Light-emitting section（light bar）Replaced.Because light emitting diode has long service life, low power consumption, reaction speed
Fast the advantages of, therefore lifted with service life as the performance of the light source module of light source using light emitting diode.
However, by light that light emitting diode is sent has directive property, therefore the close light emitting diode of light guide plate
In region, near the optical axis of light emitting diode（At i.e. just to light emitting diode）Received light is more and forms bright
Area, and away from the optical axis of light emitting diode at（I.e. tiltedly to light emitting diode at）Received light is less and forms dark space, this
That is focus（hot spot）Phenomenon.
Further, since the luminous power of light emitting diode is made bigger and bigger at present, thus it is luminous employed in light source module
The quantity of diode can be with fewer and feweri.Consequently, it is possible to the spacing between adjacent two light emitting diode is just increasing, this is easy
So that the area of dark space is increasing, and then cause that hot spot phenomenon is increasingly severe.
It is general in order to avoid light emitting diode light leak and to reduce the area in clear zone, generally it is covered in luminous two with light absorbent
The incidence surface top of pole pipe and light guide plate, but the waste of light emitting diode light energy can be caused.
Another schematic diagram of the design of prior art light source module as shown in Figure 1A.Figure 1B is a kind of light source of Figure 1A
The schematic top plan view of module illumination region.The upper plate 131a of the lampshade 130a of light source module 100a is one flat with reflecting effect
Plate.However, as shown in Figure 1B, because the light-emitting component 120 of light source module 100a has interval, and light-emitting component 120 has diverging
The limitation at angle, in the region of the close light-emitting component 120 of light guide plate 110, near the optical axis O of light-emitting component 120（I.e. just
At light-emitting component 120）Received light is more and forms clear zone BA, and at the optical axis O away from light-emitting component 120（I.e.
Tiltedly to light-emitting component 120 at）Received light is less and forms dark space DA.In other words, that is, focus is produced（hot spot）It is existing
As.On the other hand, if the incidence surface 112 in light source module 100a carries out micro-structural (not shown) design, light beam can be entered and is led
Subtended angle after tabula rasa 110 carries out shaping, is only capable of eliminating the hot spot phenomenon of part, as shown in Figure 1 C.However, this kind of mode can be improved
The research and development of the structure design of light guide plate 110 and production difficulty, micro-structural are difficult with light emitting diode contraposition, and improve product cost.
TaiWan, China patent the I358003rd discloses a kind of light shield with a curved convex section.Chinese people's republicanism
State's patent the 101881402Ath discloses a kind of reflector with a concave structure inwall.People's Republic of China's patent
No. 202253382U discloses a kind of lamp reflector with deep groove structure.TaiWan, China patent discloses No. 201126239 exposure
There is the backlight module of multiple lug bosses in a kind of frame structure.TaiWan, China patent the M441849th disclose it is a kind of have change
The backlight module of good cover body structure.
The content of the invention
The present invention provides a kind of light source module, and it can provide the area source with excellent homogeneity.
Other objects and advantages of the present invention can from disclosed herein technical characteristic in be further understood.
It is that, up to one of above-mentioned or part or all of purpose or other purposes, one embodiment of the invention proposes a kind of light source
Module, it includes a light guide plate, at least a light-emitting component and a lampshade.Light guide plate has a first surface, one relative to the
The incidence surface of the second surface on one surface and a connection first surface and second surface.Light-emitting component is configured at by incidence surface, and
Only there is an exiting surface, exiting surface faces incidence surface.One end near incidence surface of lampshade covering luminous element and light guide plate, lamp
Cover includes side plate and a upper plate.Light-emitting component is configured between side plate and incidence surface.Upper plate has a first end, relative
In the second end of first end and an at least crowning.Upper plate is connected by first end with side plate, and upper plate covering luminous element and
The part near incidence surface of first surface.Crowning is positioned at the surface of light-emitting component and raised and convex towards light-emitting component
The face of rising extends from the side near first end of upper plate toward the side near the second end.
In one embodiment of this invention, width of the above-mentioned crowning on the direction parallel to incidence surface is near the
Successively decrease toward the side near the second end the side of one end.
In one embodiment of this invention, the bending surface that above-mentioned crowning is formed by multiple planes.
In one embodiment of this invention, above-mentioned crowning is curved surface.
In one embodiment of this invention, the number of an above-mentioned at least light-emitting component is multiple, an and at least crowning
Number be multiple, these light-emitting components are arranged along the direction parallel to incidence surface, and these crownings are along parallel to upper
The bearing of trend arrangement of plate.
In one embodiment of this invention, the number of an above-mentioned at least light-emitting component is multiple, an and at least crowning
Number be multiple, these light-emitting components are arranged along the direction parallel to incidence surface, and these crownings are along parallel to upper
The bearing of trend arrangement of plate.Upper plate also has multiple first concave faces, and these crownings are with these first concave faces along upper plate
Bearing of trend be alternately arranged, and the first concave face depression direction it is opposite with the protrusion direction of crowning.
In one embodiment of this invention, width of the every 1 first above-mentioned concave face on the direction parallel to incidence surface
Successively decrease side near the side of first end toward 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, above-mentioned crowning on the direction parallel to incidence surface and first surface most
1.75 times of width of the big width more than zero and less than or equal to exiting surface on parallel to the direction of incidence surface and first surface.
In one embodiment of this invention, above-mentioned lampshade also includes a lower plate, and its latus inframedium connects upper plate and lower plate, under
Plate covers the part near incidence surface of second surface, and upper plate is located at the opposite sides of light-emitting component with lower plate respectively.
Based on above-mentioned, the light source module of embodiments of the invention can make to light through the crowning structure design on lampshade
The light beam that element is sent by after the different zones reflection of lampshade with different angle reflections to light guide plate in, and therefore can improve hair
The uneven situation of light distribution between optical element, and the Energy distribution that the light beam coupling that light-emitting component sent enters light guide plate can be lifted
The uniformity, to provide the area source with excellent homogeneity, and eliminates dark area effect.
It is that features described above of the invention and advantage can be become apparent, special embodiment below, and it is detailed to coordinate accompanying drawing to make
Carefully it is described as follows.
Brief description of the drawings
Figure 1A is a kind of schematic diagram of light source module of prior art.
Figure 1B is the schematic top plan view of the light source module illumination region of Figure 1A.
Fig. 1 C are the schematic top plan views of another light source module illumination region of Figure 1A.
Fig. 2A is a kind of schematic perspective view of light source module of one embodiment of the invention.
Fig. 2 B are the light path schematic diagrams on the light source module A-A ' sections of Fig. 2A embodiments.
Fig. 2 C are the light path schematic diagrams on the light source module B-B ' sections of Fig. 2A embodiments.
Fig. 3 A are the light path schematic diagrams of the light beam of the light source module of Fig. 2 B embodiments.
Fig. 3 B are the light path schematic diagrams of another light beam of the light source module of Fig. 2 C embodiments.
Fig. 4 is a kind of schematic perspective view of light source module of another embodiment of the present invention.
Fig. 5 is a kind of schematic perspective view of light source module of further embodiment of this invention.
Fig. 6 is a kind of schematic perspective view of light source module of yet another embodiment of the invention.
Specific embodiment
For the present invention foregoing and other technology contents, feature and effect, in the preferred embodiment of following cooperation accompanying drawing
Detailed description in, can clearly present.The direction term being previously mentioned in following examples, for example：It is upper and lower, left and right, preceding
Or rear etc., only it is the direction of refer to the attached drawing.Therefore, the direction term for using is for illustrating not for limiting the present invention.
Fig. 2A is a kind of schematic perspective view of light source module 100 of one embodiment of the invention.Fig. 2 B are Fig. 2A embodiments
Light path schematic diagram on light source module A-A ' sections.Fig. 2 C are that the light path on the light source module B-B ' sections of Fig. 2A embodiments is illustrated
Figure.Fig. 2A is refer to, in the present embodiment, light source module 100 includes a light guide plate 110, at least a light-emitting component 120 and
Lampshade 130.Light guide plate 110 has a first surface 111, one relative to first surface 111 the connection of second surface 113 and one the
One surface 111 and the incidence surface 112 of second surface 113, wherein first surface 111 are, for example, the exiting surface of light guide plate 110, second
Surface 113 is, for example, the bottom surface of light guide plate 110.In the present embodiment, the material of light guide plate 110 can be the chemical combination of high transmission rate
Thing.For example, the material of light guide plate 110 is, for example, acryl (Polymethyl Methacrylate, PMMA), poly- carbonic acid
Ester resin (Polycarbonate, PC), cyclic olefine copolymer (Cycloolefin Copolymer, COC), glass or other are suitable
The guide-lighting material of conjunction.
Light-emitting component 120 is configured at by incidence surface 112, may be used to provide a light beam, and only has an exiting surface 121, is gone out
Smooth surface 121 faces incidence surface 112.In the present embodiment, light beam for example can be illuminating bundle, and light-emitting component 120 for example can be hair
Optical diode, but the invention is not restricted to this, in other feasible embodiments, the point of light-emitting component 120 or other kenels
Light source.Additionally, in the present embodiment, light source module 100 also includes a flexible circuit board 140, is electrically connected with light-emitting component 120
Connect, to control light-emitting component 120.
On the other hand, lampshade 130 includes a upper plate 131, the lower plate 135 of side plate 133 and, and the covering hair of lampshade 130
One end of the close incidence surface 112 of optical element 120 and light guide plate 110.Specifically, in the present embodiment, lampshade 130 has good
Good light reflectivity, for example, the material of lampshade 130 for example can be metal, and can the reflected beams.More specifically, at this
In embodiment, the upper plate 131 of lampshade 130 has a first end TE1, one relative to the second end TE2 of first end TE1 and at least
Crowning PS.Additionally, upper plate 131 also has at least one concave face HS relative to crowning PS.Specifically, concave face HS courts
It is recessed to light-emitting component 120, and concave face HS conformal with crowning PS.
Furthermore, referring to Fig. 2A and Fig. 2 B, in the present embodiment, upper plate 131 passes through first end TE1 and side
Plate 133 is connected, and the close incidence surface 112 of the covering luminous element 120 of upper plate 131 and first surface 111 part.Crowning PS
It is positioned at the surface of light-emitting component 120 and raised towards light-emitting component 120, and crowning PS is from the close first end of upper plate 131
The side of TE1 extends (for example extend in the y-direction) toward near the side of the second end TE2.More specifically, in the present embodiment,
The number of an above-mentioned at least light-emitting component 120 is multiple, and at least the number of a crowning PS is multiple, these light-emitting components
120 arrange along the direction D1 parallel to incidence surface 112, and these crownings PS is along the bearing of trend parallel to upper plate 131
D2 is arranged.In the present embodiment, direction D1 and direction D2 are, for example, parallel to x directions, but the invention is not restricted to this.
Additionally, side plate 133 connection upper plate 131 and the lower plate 135 of lampshade 130, and light-emitting component 120 be located at side plate 133 with
Between incidence surface 112.The part of the close incidence surface 112 of the covering second surface 113 of lower plate 135 of lampshade 130, and upper plate 131
With lower plate 135 respectively positioned at the opposite sides of light-emitting component 120.In the present embodiment, the mode for making lampshade 130 for example can profit
Shaped with impact style, to make upper plate 131, side plate 133 and the required shape of lower plate 135, but the invention is not restricted to this.
Fig. 2 B are continued referring to, specifically, in the present embodiment, the light that light-emitting component 120 is sent from exiting surface 121
Beam 60 can enter light guide plate 110 by incidence surface 112, and advance and conduct to be totally reflected behavior in the inside of light guide plate 110.And lead
There can be multiple scattering micro-structurals 115 on the second surface 113 of tabula rasa 110, to destroy total reflection phenomenon.In this way, light beam 60 can
Never the part first surface 111 for being covered by lampshade 130 leaves light guide plate 110, and provides external light source.However, in other realities
In applying example, scattering micro-structural 115 may be alternatively located at the first surface 111 of light guide plate 110, or be located at simultaneously first surface 111 with
Second surface 113.
On the other hand, light source module 100 may also include a reflector element 150 for being located at the lower section of light guide plate 110.Reflector element
150 light beams 70 that can will scatter to reflector element 150 are reflected back light guide plate 110 again, and light beam 70 is sequentially penetrated second surface
113 with first surface 111, and leave light guide plate 110, increase light utilization ratio.Further, since the lampshade 130 of the present embodiment has
There is good light reflectivity, therefore when the part first surface 111 that light beam 70 is covered by lampshade 130 is scattered, then can
Reflected by lampshade 130 and be again introduced into being transmitted in light guide plate 110.And it is in the part not covered by lampshade 130 to work as light beam 70
When one surface 111 scatters, then can leave light guide plate 110 and external light source is provided.
Additionally, refer to Fig. 2 B and Fig. 2 C, in the present embodiment, after light beam 80,90 self-emission devices 120 send, can be through
Reflected by the different zones of lampshade 130, and with different angle reflections to light guide plate 110 in, contribute to improve light-emitting component 120
Between the uneven situation of light distribution, and lifted the light beam coupling that light-emitting component 120 sent enter light guide plate Energy distribution it is uniform
Degree.To arrange in pairs or groups Fig. 3 A to Fig. 3 B below, be further detailed.
To below be arranged in pairs or groups Fig. 3 A to Fig. 3 B again, and dark space and focus how are eliminated for crowning PS structure designs of the invention
The mechanism of phenomenon is described in detail.
Fig. 3 A are the light path schematic diagrams of the light beam of the light source module of Fig. 2A embodiments.Refer to Figure 1B, Fig. 2A, Fig. 2 B and figure
3A, in the present embodiment, after the self-emission device 120 of light beam 80 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, will be transmitted toward the diagonally forward of light-emitting component 120, without
Transmitted on the A-A ' sections of Fig. 2A, and the dotted line shown in Fig. 2 B represents light beam 80 in the projection components on A-A ' sections.Therefore,
Light beam 80 be able to will be incident in the region of light guide plate 110 between the optical axis O of adjacent two light-emitting component 120, and near incidence surface
112 part (the dark space DA for example, shown in Figure 1B) is scattered light guide plate 110.In this way, light source module 100 can be by projection
Different zones are reflected on the PS of face light beam 80 eliminates dark space DA and hot spot phenomenon.
Furthermore, in the present embodiment, the bending table that crowning PS can be formed for multiple planes PSa, PSb, PSc
Face.In other words, Fig. 3 A show three planes PSa, PSb, PSc, and sections of the crowning PS in xz planes is, for example, inverted trapezoidal,
But in other unshowned embodiments, the bending surface that crowning PS can be formed by two planes, and in xz planes
Section be, for example, triangle, but the invention is not restricted to this.Furthermore, as shown in Figure 2 A, crowning PS is parallel to entering
Width on the direction D1 of smooth surface 112 successively decreases near the side of first end TE1 toward the side for being close to the second end TE2.In more detail
For, in the present embodiment, as shown in Fig. 2 B and Fig. 3 A, crowning PS is in the side parallel to incidence surface 112 and first surface 111
To the Breadth Maximum C on D1 more than zero and less than or equal to exiting surface 121 in the side parallel to incidence surface 112 and first surface 111
To 1.75 times of the width L on D1, but the invention is not restricted to this.It is moreover observed that, above-mentioned number range is only as example
Show explanation, it is not limited to the present invention.
Fig. 3 B are the light path schematic diagrams of another light beam of the light source module of Fig. 2A embodiments.Refer to Figure 1B, Fig. 2A, Fig. 2 C
And Fig. 3 B, in the present embodiment, light beam 90 also can be via the region beyond the crowning PS of lampshade 130 (such as shown in Fig. 3 B
Plane FS) reflection.As shown in Figure 3 B, light beam 90, also can be toward light-emitting component 120 after being reflected via the plane FS of lampshade 130
Diagonally forward is transmitted, and without being transmitted on the B-B ' sections of Fig. 2A, and the dotted line shown by Fig. 2 C represents light beam 90 in B-B ' sections
On projection components.Therefore, light beam 90 can also different angles be incident to leading between the optical axis O of adjacent two light-emitting component 120
Tabula rasa 110 is transmitted in region, and is scattered in the part (the dark space DA for example, shown in Figure 1B) near incidence surface 112
Light guide plate 110.Furthermore, the angle for being reflected by lampshade 130 due to light beam 80,90 is not consistent, in light guide plate 110
Bang path is also differed, therefore can scatter light guide plate 110 by different zones, is more conducive to eliminate dark space DA and focus is existing
As.
Consequently, it is possible to light source module 100 can be sent out light-emitting component through the crowning PS structure designs on lampshade 130
The light beam 80,90 for going out by after the different zones reflection of lampshade 130 with different angle reflections to light guide plate 110 in, and therefore can change
The uneven situation of light distribution between kind light-emitting component 120, and the light beam coupling that light-emitting component 120 sent can be lifted and enter light guide plate
The 110 Energy distribution uniformity, to provide the area source with excellent homogeneity, and eliminates dark area effect.
Though it is worth noting that, the crowning PS of foregoing lampshade 130 be with multiple planes PSa, PSb, PSc formed it is curved
Folding surface is to illustrate, but the present invention is not limited thereto.To arrange in pairs or groups Fig. 4 to Fig. 6 below, and the possibility change for lampshade 130 is made
Further instruction.
Fig. 4 is a kind of schematic perspective view of light source module of another embodiment of the present invention.Fig. 4 is refer to, the present embodiment
Light source module 400 is similar with the light source module 100 of Fig. 2A embodiments, and difference is as described below.In the present embodiment, lampshade 430
Crowning PS ' be curved surface.Because the architectural difference of light source module 400 and light source module 100 essentially consists in lampshade 130,430
Crowning PS, PS ' be respectively the bending surface that curved surface or multiple plane are formed, but equally achievable light beam by lampshade 130,
With the effect in different angle reflections to light guide plate 110 after 430 different zones reflection, therefore, light source module 400 equally has
Have the advantages that mentioned by light source module 100, just to repeat no more herein.In addition, crowning PS ' is because in curved surface, and can be further real
The effect for now dissipating light.
Fig. 5 is a kind of schematic perspective view of light source module 500 of further embodiment of this invention.Refer to Fig. 5, the present embodiment
Light source module 500 it is similar with the light source module 400 of Fig. 4 embodiments, and difference is as described below.In the present embodiment, lampshade 530
Upper plate 531 also have multiple first concave face HS1, these crownings PS ' and these the first concave face HS1 along upper plate 531
Bearing of trend D2 be alternately arranged, and the depression direction H1 of the first concave face HS1 is opposite with the protrusion direction P1 of crowning PS.This
Outward, more specifically, in the present embodiment, the first concave face HS1 is curved surface, and every one first concave face HS1 is parallel to entering
Width D on the direction of smooth surface 112 is successively decreased near the side of first end TE1 toward the side for being close to the second end TE2.Due to light source
Module 500 essentially consists in the presence or absence of multiple first concave face HS1 with the architectural difference of light source module 400, but is equally capable of achieving light
Beam by lampshade 530 different zones reflection after with the effect in different angle reflections to light guide plate 110, therefore, light source module 500
Equally have the advantages that mentioned by light source module 400, just to repeat no more herein.Additionally, because the first concave face HS1 is also in curved surface,
The effect that can will further realize making light beam to assemble, and can further lift leading between the optical axis O of adjacent two light-emitting component 120
The brightness in the region of tabula rasa 110 (the dark space DA for example, shown in Figure 1B), is more conducive to eliminate dark space DA and hot spot phenomenon.
Fig. 6 is a kind of schematic perspective view of light source module of yet another embodiment of the invention.Fig. 6 is refer to, the present embodiment
Light source module 600 is similar with the light source module 500 of Fig. 5 embodiments, and difference is as described below.In the present embodiment, lampshade 630
The bending surface that crowning PS is formed by multiple planes.Because light source module 600 is main with the architectural difference of light source module 500
It is that crowning PS ', the PS of lampshade 530,630 is respectively the bending surface that curved surface or multiple plane are formed, but equally can be real
With the effect in different angle reflections to light guide plate 110 after now light beam is reflected by the different zones of lampshade 530,630, therefore, light
Source module 600 equally has the advantages that mentioned by light source module 500, just to repeat no more herein.
In sum, the light source module of embodiments of the invention can make to light through the crowning structure design on lampshade
The light beam that element is sent by after the different zones reflection of lampshade with different angle reflections to light guide plate in, and therefore can improve hair
The uneven situation of light distribution between optical element, and the Energy distribution that the light beam coupling that light-emitting component sent enters light guide plate can be lifted
The uniformity, to provide the area source with excellent homogeneity, and eliminates dark area effect.
The foregoing is only the preferred embodiments of the present invention, it is impossible to the scope of present invention implementation, i.e. institute are limited with this
There are the simple equivalence changes and modification made according to the claims in the present invention and description, all still fall within patent covering of the present invention
Scope.Other any embodiment of the invention or claim be not necessary to realize disclosed herein whole purposes or advantage or
Feature.Additionally, summary and denomination of invention are intended merely to auxiliary patent document retrieval be used, not for limiting right of the invention
Scope.Additionally, " first ", " second " for being referred in this specification or claim etc. is only used to name element
(element) title or the different embodiments of difference or scope, and not it is used for the quantitative upper limit of restriction 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：Second end
PS、PS’：Crowning
HS：Concave face
HS1：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 (9)
1. a kind of light source module, an including light guide plate, at least a light-emitting component and a lampshade,
The light guide plate has a first surface, one relative to the second surface of the first surface and connection first table
The incidence surface of face and the second surface,
An at least light-emitting component is spot light and is configured at by the incidence surface that the light-emitting component only has a light extraction
Face, the exiting surface faces the incidence surface,
The lampshade covers one end of the close described incidence surface of the light-emitting component and the light guide plate, and the lampshade includes one
Side plate and a upper plate, wherein, the light-emitting component is configured between the side plate and the incidence surface, and the upper plate has one the
The second end and an at least crowning of one end, one relative to the first end, wherein the upper plate is by the first end and institute
Side plate connection is stated, and the upper plate covers the part of the close described incidence surface of the light-emitting component and the first surface, institute
State crowning positioned at the surface of the light-emitting component and raised towards the light-emitting component, and the crowning is from the upper plate
Close described first end side toward near second end side extend,
The number of an at least light-emitting component is multiple, and the number of an at least crowning is multiple, these luminous units
Part is arranged along the direction parallel to the incidence surface, and these crownings are arranged along the bearing of trend parallel to the upper plate
Row, the upper plate also has multiple first concave faces, these crownings and these first concave faces along the upper plate extension
Direction is alternately arranged, and the depression direction of these the first concave faces is opposite with the protrusion direction of the crowning.
2. light source module as claimed in claim 1, it is characterised in that the crowning is in the direction parallel to the incidence surface
On width successively decrease toward near the side at second end near the side of the first end.
3. light source module as claimed in claim 1, it is characterised in that the bending table that the crowning is formed by multiple planes
Face.
4. light source module as claimed in claim 1, it is characterised in that the crowning is curved surface.
5. light source module as claimed in claim 1, it is characterised in that each first concave face parallel to it is described enter light
Width on the direction in face successively decreases near the side of the first end toward the side for being close to second end.
6. light source module as claimed in claim 1, it is characterised in that these crownings are curved surface, and these first concave faces
It is curved surface.
7. light source module as claimed in claim 1, it is characterised in that these first concave faces are curved surface.
8. light source module as claimed in claim 1, it is characterised in that the crowning parallel to the incidence surface with it is described
Breadth Maximum on the direction of first surface more than zero and less than or equal to the exiting surface parallel to the incidence surface with it is described
1.75 times of width on the direction of first surface.
9. light source module as claimed in claim 1, it is characterised in that the lampshade also includes a lower plate, wherein the side plate
The upper plate and the lower plate are connected, the lower plate covers the part of the close described incidence surface of the second surface, and described
Upper plate is with the lower plate respectively positioned at the opposite sides of the 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616594.4A CN104676296B (en) | 2013-11-27 | 2013-11-27 | Light source module |
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| Publication Number | Publication Date |
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| CN104676296A CN104676296A (en) | 2015-06-03 |
| CN104676296B true CN104676296B (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310616594.4A Active CN104676296B (en) | 2013-11-27 | 2013-11-27 | Light source module |
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| Country | Link |
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| CN (1) | CN104676296B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US20220214489A1 (en) * | 2019-04-29 | 2022-07-07 | Signify Holding B.V. | A light emitting device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4436105B2 (en) * | 2002-11-29 | 2010-03-24 | 富士通株式会社 | Reflector, illumination device, light guide plate, and display device |
| JP2007080544A (en) * | 2005-09-09 | 2007-03-29 | Citizen Electronics Co Ltd | Lighting device |
| US7470034B2 (en) * | 2006-03-29 | 2008-12-30 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Light guide with indirect light source |
| US7910938B2 (en) * | 2006-09-01 | 2011-03-22 | Cree, Inc. | Encapsulant profile for light emitting diodes |
| CN100498467C (en) * | 2006-12-29 | 2009-06-10 | 友达光电股份有限公司 | Reflection housing for back light module and method of manufacturing same |
| TWI358003B (en) * | 2007-02-07 | 2012-02-11 | Au Optronics Corp | Lighting device |
| CN202580939U (en) * | 2012-04-09 | 2012-12-05 | 苏州世鼎电子有限公司 | LED (Light Emitting Diode) backlight module with V-shaped grooving structures |
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| CN104676296A (en) | 2015-06-03 |
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