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CN107238888A - A kind of light guide plate and illuminating module - Google Patents

A kind of light guide plate and illuminating module Download PDF

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Publication number
CN107238888A
CN107238888A CN201710591811.7A CN201710591811A CN107238888A CN 107238888 A CN107238888 A CN 107238888A CN 201710591811 A CN201710591811 A CN 201710591811A CN 107238888 A CN107238888 A CN 107238888A
Authority
CN
China
Prior art keywords
guide plate
light guide
catadioptric
light
exiting surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710591811.7A
Other languages
Chinese (zh)
Inventor
卢雪
戴增恺
周錬
杨志兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wac Lighting (shanghai) Co Ltd
Original Assignee
Wac Lighting (shanghai) Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wac Lighting (shanghai) Co Ltd filed Critical Wac Lighting (shanghai) Co Ltd
Priority to CN201710591811.7A priority Critical patent/CN107238888A/en
Publication of CN107238888A publication Critical patent/CN107238888A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • G02B6/0063—Means for improving the coupling-out of light from the light guide for extracting light out both the major surfaces of the light guide
    • 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
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened 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
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051—Diffusing sheet or layer
    • 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
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • 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
    • G02B6/0065—Manufacturing aspects; Material aspects
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The invention discloses a kind of light guide plate, the light guide plate includes the first exiting surface and the second exiting surface, first exiting surface and second exiting surface are separately positioned on the both sides of the light guide plate, first exiting surface is planar structure, second exiting surface is provided with micro-structural, the micro-structural includes the catadioptric micro unit of n relatively described second exiting surface depressions, the n ＞ 0.A kind of illuminating module, including light guide plate and light source, the light source are arranged on the left side or center of the light guide plate and the centerline collineation of the center line of the light source and the light guide plate.Compared with prior art, the present invention have the advantages that it is simple in construction, with low cost, can equal control orient rising angle and light extraction efficiency is high.

Description

A kind of light guide plate and illuminating module
Technical field
The present invention relates to a kind of light guide plate and illuminating module, rising angle can be reasonably controlled, light extraction efficiency is improved, will Throw into required direction uniform light.
Background technology
Existing illuminating module is not good for the rising angle of light and the controlling of light extraction efficiency, the light that both sides are projected Most of present extends out state, it is impossible to meet the occasion that some needs orient light extraction.For the rising angle needed for acquisition, and make light Light produced by source can obtain preferably light-out effect and utilization rate after light guide plate is entered, and related personnel need to be to light guide plate Structure further optimizes.The invention discloses one kind it is simple in construction, with low cost, can equal control orientation rising angle And the high light guide plate of light extraction efficiency and illuminating module.
The content of the invention
For the shortcoming or deficiency of above-mentioned prior art, the technical problem to be solved in the present invention is to provide a kind of letter of structure It is single, with low cost, can the equal control orientation rising angle and high light guide plate of light extraction efficiency and illuminating module.
In order to solve the above technical problems, the present invention has following composition：
A kind of light guide plate, the light guide plate includes the first exiting surface and the second exiting surface, first exiting surface and described Second exiting surface is separately positioned on the both sides up and down of the light guide plate, and first exiting surface is planar structure, and described second goes out Smooth surface is provided with micro-structural, and the micro-structural includes the catadioptric micro unit of n relatively described second exiting surface depressions, the n ＞ 0.
The catadioptric micro unit is catadioptric pyramid, and the catadioptric pyramid is provided with and formed with second exiting surface One angle of inclination inInclined side, the angle of inclination inUniformly reduce from the left side of the light guide plate to right side.
The previous lopsided angle of inclination in-1Than the latter lopsided angle of inclination inIt is big 0.5 ° -1 °.
The angle of inclination inAngular range be 15 ° -40 °.
The setting height h of the catadioptric pyramidnUniformly increase from the left side of the light guide plate to right side.
The setting height h of the previous catadioptric pyramidn-1Than the setting height h of the latter catadioptric pyramidnIt is low 0.1-0.5mm。
The setting height hnFor 0.1-4mm.
The drift angle of the catadioptric pyramid is provided with radian.
The catadioptric micro unit is catadioptric circular arc, and the center of circle of the catadioptric circular arc is arranged at second light extraction On face, the radius r of the catadioptric circular arcnUniformly increase from left side to the right side of second exiting surface.
The radius r of the previous catadioptric circular arcn-1Than the radius r of the latter catadioptric circular arcnSmall 0.1- 0.5mm。
The radius r of the catadioptric circular arcnFor 0.1-4mm.
The light guide plate is made of clear material.
The light guide plate is made up of PMMA or PVC or PC.
The light guide plate is the square or loop configuration of flat.
A kind of illuminating module, including light guide plate and light source, the light source be arranged on the left side or center of the light guide plate and The centerline collineation of the center line of the light source and the light guide plate.
The illuminating module also includes diffuser plate, and the diffuser plate is arranged on above or below the light guide plate.
When the catadioptric micro unit on second exiting surface is catadioptric pyramid, the diffuser plate is arranged on described lead The lower section of tabula rasa and with the light guide plate distance D set, D >=0.
When the catadioptric micro unit on second exiting surface is catadioptric circular arc, the diffuser plate is arranged on described lead The top of tabula rasa and with the light guide plate distance D set, D >=0.
When the light guide plate is square structure, the light source is arranged on the left side of the light guide plate.
When the light guide plate is loop configuration, the light source is arranged on the center of the light guide plate.
The safe distance S of the exiting surface of the light source and the incidence surface of the light guide plate is 0.5mm.
The light source is some groups of LED light source units.
Compared with prior art, the present invention has the following technical effect that：
Light can in proportion be led and be penetrated up and down the two of light guide plate by the catadioptric micro unit on light guide plate by the present invention Side, is presented the light-out effect of directional type polarisation；It is additionally provided with diffuser plate above or below the light guide plate, the diffuser plate is set Put so that the light emission side reaches further light mixing effect, so as to realize that illuminated light extraction is uniformly descended in this side, another side positioning inclines The light-out effect of inclined.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other Feature, objects and advantages will become more apparent upon：
Fig. 1：The structural representation one of light guide plate of the present invention；
Fig. 2：The present invention includes the structural representation one of illuminating module as shown in Figure 1；
Fig. 3：The light-out effect figure of illuminating module as shown in Figure 2；
Fig. 4：The present invention includes the structural representation two of illuminating module as shown in Figure 1；
Fig. 5：The sectional view of illuminating module as described in Figure 4；
Fig. 6：The light-out effect figure of illuminating module as shown in Figure 4；
Fig. 7：The structural representation two of light guide plate of the present invention；
Fig. 8：The present invention includes the structural representation one of illuminating module as shown in Figure 7；
Fig. 9：The light-out effect figure of illuminating module as shown in Figure 8；
Figure 10：The present invention includes the structural representation two of illuminating module as shown in Figure 7；
Figure 11：The sectional view of illuminating module as shown in Figure 10；
Figure 12：The light-out effect figure of illuminating module as shown in Figure 10.
Embodiment
The technique effect of the design of the present invention, concrete structure and generation is described further below with reference to accompanying drawing, with It is fully understood from the purpose of the present invention, feature and effect.
Embodiment one
As shown in figure 1, the present embodiment light guide plate, the light guide plate 10 include the first exiting surface 11, the second exiting surface 12 with And incidence surface 101, first exiting surface 11 and second exiting surface 12 are separately positioned on the both sides of the light guide plate 10, institute State the left side that incidence surface 101 is arranged on the light guide plate 10；First exiting surface 11 is planar structure, second exiting surface 12 are provided with micro-structural, and the micro-structural includes the catadioptric micro unit that n relatively described second exiting surfaces 12 are recessed, the n ＞ 0.Catadioptric micro unit on the light guide plate 10, light can be led penetrate in the both sides up and down of light guide plate 10 in proportion, be presented The light-out effect of directional type polarisation.
The thickness of the light guide plate 10 is 3-4.5mm.The light guide plate 10 is the square structure of flat, frivolous, hereafter The illuminating module for including light guide plate 10, overall structure also into flat, with frivolous, is easily installed, and light efficiency is high, energy-conservation etc. Advantage.
As a further improvement, the catadioptric micro unit is catadioptric pyramid 121, on the catadioptric pyramid 121 Provided with second exiting surface 12 formation one angle of inclination inInclined side 1211, the angle of inclination inFrom the light guide plate 10 left side to right side uniformly reduces.The angle of inclination inUniform reduction set-up mode so that light being capable of edge in proportion The light extraction of first exiting surface, 11 and second exiting surface 12, and the light-out effect of directional type polarisation is presented.
Preferably, the angle of inclination i of the previous inclined side 1211n-1Than the inclination of the latter inclined side 1211 Angle inBig 0.5 ° -1 °, in the case where the light guide plate 10 sets length to allow, the smaller light-out effect that the numerical value is set is got over It is good.
Preferably, the angle of inclination inAngular range be 15 ° -40 °, preferably 25 ° -35 °, in this angular range Preferably light-out effect can be obtained；The drift angle of the catadioptric pyramid 121 is provided with radian 1212, and the radian 1212 is ensureing It is easy to early stage to process while light-out effect.
As a further improvement, the setting height h of the catadioptric pyramid 121nFrom the left side of the light guide plate 10 extremely Right side uniformly increases.The setting height h of the catadioptric pyramid 121nWith the angle of inclination i of the inclined side 1211nSet jointly Put mode so that enter light guide plate 10 light can in proportion along the light extraction of 11 and second exiting surface of the first exiting surface 12, And the light-out effect of directional type polarisation is presented.
The setting height h of the previous catadioptric pyramid 121n-1Setting than the latter catadioptric pyramid 121 is high Spend hnLow 0.1-0.5mm, preferably 0.1mm, in the case where the length of light guide plate 10 allows, the smaller light-out effect of the numerical value is got over It is good.
As a further improvement, the setting height h of the catadioptric pyramid 121n-1Preferably 0.1-4mm, in principle, The maximum thickness for setting height to be less than the light guide plate 10 of the catadioptric pyramid 121.
As a further improvement, the spacing 13 of the adjacent catadioptric micro unit could be arranged to it is equal or different.Institute Stating the setting length (comprising the situation that spacing is 0) of spacing 13 can suitably be adjusted according to actual needs.
As a further improvement, the light guide plate 10 is made of clear material, it is preferable that the light guide plate 10 is by PMMA (polymethyl methacrylate) or PVC (polyvinyl chloride) or PC (makrolon) are made, and above-mentioned transparent material can reach preferably Light-out effect.
As shown in Figures 2 and 3, illuminating module of the present invention, including light guide plate 10 and light source 30 as shown in Figure 1, the light Install on the substrate 40 in source 30.The light source 30 is arranged on the left side of the light guide plate 10 and the center line of the light source 30 and institute The centerline collineation of light guide plate 10 is stated, the set-up mode ensure that preferably light-out effect.
Preferably, the illuminating module also includes diffuser plate 20, and the diffuser plate 20 is arranged under the light guide plate 10 Side, the setting of the diffuser plate 20 can make the exiting surface reach further light mixing effect, realize that this side uniformly descends illuminated to go out Light.
In the present embodiment, the light guide plate 10 is preferably flat square structure, and the light source 30 is preferably some groups LED light source unit, some groups of LED light source units are arranged on the left side of the light guide plate 10, some groups of LED/light source lists The incidence surface 101 of the exiting surface 301 and the light guide plate 10 of member is oppositely arranged, and the center of some groups of LED light source units The centerline collineation of line and the light guide plate 10.
As a further improvement, the safety of the exiting surface 301 of the light source 30 and the incidence surface 101 of the light guide plate 10 It is 0.5mm apart from S, safe distance S can suitably be increased and decreased according to actual conditions.The setting of the safe distance S can To be effectively prevented from light guide plate 10 light source 30 is touched in use and influence its service life.
The diffuser plate 20 is arranged on the lower section of the light guide plate 10 and set with the distance D of light guide plate 10, institute State D >=0.The setting of the diffuser plate 20 can reach further light mixing effect in the side of the second exiting surface 12, and realize this Uniformly lower the illuminated light extraction, the light-out effect of opposite side directional inclination formula of side.
The present embodiment illuminating module overcomes the assembling mode of conventional lights, in some applications, such as when shining pattern down, no Traditional mode such as dig a hole is needed to install, frivolous, flat illuminating module can directly be jointly mounted to required installation Position, it is easy for installation, quick, save labour；The present embodiment can realize the light-out effect of directional type, compared to its of same power The diffusion type light-out effect of his light fixture, the light utilization efficiency of the present embodiment illuminating module is higher；The illuminating module of the present embodiment can be answered For indoor and outdoor application scenarios such as place lamp, Landscape Lamp, charging station illumination, decorative light, skirt lamp, desk lamp and lower illuminators, Dazzle is low, has a wide range of application.
Embodiment two
As shown in Figures 4 to 6, the present embodiment illuminating module includes light guide plate 10 and light source 30 as shown in Figure 1, the light Install on the substrate 40 in source 30.The light source 30 is arranged on the center of the light guide plate 10 and the center line of the light source 30 and institute The centerline collineation of light guide plate 10 is stated, the set-up mode ensure that preferably light-out effect.
Preferably, the illuminating module also includes diffuser plate 20, and the diffuser plate 20 is arranged under the light guide plate 10 Side, the setting of the diffuser plate 20 can make the exiting surface reach further light mixing effect, realize that this side uniformly descends illuminated to go out Light.
In the present embodiment, the light guide plate 10 is preferably the loop configuration of flat, and the light source 30 is preferably some Group LED light source unit, some groups of LED light source units are arranged on the center of the light guide plate 10, some groups of LED/light sources The incidence surface 101 of the exiting surface 301 of unit and the light guide plate 10 is oppositely arranged, and in some groups of LED light source units The centerline collineation of heart line and the light guide plate 10.
As a further improvement, the safety of the exiting surface 301 of the light source 30 and the incidence surface 101 of the light guide plate 10 It is 0.5mm apart from S, safe distance S can suitably increase and decrease according to actual conditions.The setting of the safe distance S can have Effect light guide plate 10 is avoided to touch light source 30 in use and influence its service life.
The diffuser plate 20 is arranged on the lower section of the light guide plate 10 and set with the distance D of light guide plate 10, institute State D >=0.The setting of the diffuser plate 20 can reach further light mixing effect in the side of the second exiting surface 12, and realize this Illuminated light extraction, the light-out effect of opposite side directional inclination formula are uniformly descended in side.
The present embodiment illuminating module overcomes the assembling mode of conventional lights, in some applications, such as when shining pattern down, no Traditional mode such as dig a hole is needed to install, frivolous, flat illuminating module can directly be jointly mounted to required installation Position, it is easy for installation, quick, save labour；The present embodiment can realize the light-out effect of directional type, compared to its of same power The diffusion type light-out effect of his light fixture, the light utilization efficiency of the present embodiment illuminating module is higher；The illuminating module of the present embodiment can be answered For indoor and outdoor application scenarios such as place lamp, Landscape Lamp, charging station illumination, decorative light, desk lamp and lower illuminators, dazzle is low, Have a wide range of application.
Embodiment three
As shown in fig. 7, the present embodiment light guide plate, the light guide plate 10 include the first exiting surface 11, the second exiting surface 12 with And incidence surface 101, first exiting surface 11 and second exiting surface 12 are separately positioned on the both sides of the light guide plate 10, institute State the left side that incidence surface 101 is arranged on the light guide plate 10；First exiting surface 11 is planar structure, second exiting surface 12 are provided with micro-structural, and the micro-structural includes the catadioptric micro unit that n relatively described second exiting surfaces 12 are recessed, the n ＞ 0.Catadioptric micro unit on the light guide plate 10, light can be led penetrate in the both sides up and down of light guide plate 10 in proportion, be presented The light-out effect of directional type polarisation.
The thickness of the light guide plate 10 is 3-4.5mm.The light guide plate 10 is the square structure of flat, frivolous, hereafter The illuminating module for including light guide plate 10, overall structure is frivolous also into flat, is easily installed, and light efficiency is high, energy-conservation etc..
As a further improvement, the catadioptric micro unit is catadioptric circular arc 122, the catadioptric circular arc 122 The center of circle is arranged on second exiting surface 12, the radius r of the catadioptric circular arc 122nFrom second exiting surface 12 Left side to right side uniformly increases.The radius r of the catadioptric circular arc 122nUniform increase set-up mode so that light can be by The light-out effect of directional type polarisation is presented along the light extraction of 11 and second exiting surface of the first exiting surface 12 in ratio.
As a further improvement, the radius r of the previous catadioptric circular arc 122n-1Catadioptric circle more described than latter The radius r of arc 122nSmall 0.1-0.5mm, preferably 0.1mm, the smaller light-out effect of the numerical value are better.Preferably, the catadioptric The radius r of circular arc 122nFor 0.1-4mm, in principle the catadioptric circular arc 122 radius rnLess than the thickness of the light guide plate 10 .
As a further improvement, the spacing 13 of the adjacent catadioptric micro unit could be arranged to it is equal or different.Institute Stating the setting length (comprising the situation that spacing is 0) of spacing 13 can suitably be adjusted according to actual needs.
As a further improvement, the light guide plate 10 is made of clear material, it is preferable that the light guide plate 10 is by PMMA Or PVC or PC are made.The transparent material can reach preferable light-out effect.
As shown in Figure 8 and Figure 9, the present embodiment illuminating module, including light guide plate 10 and light source 30 as shown in Figure 7, it is described Light source 30 is arranged on the left side of the light guide plate 10 and the centerline collineation of the center line of the light source 30 and the light guide plate 10. The set-up mode ensure that preferably light-out effect.
Preferably, the illuminating module also includes diffuser plate 20, and the diffuser plate 20 is arranged on the upper of the light guide plate 10 Side, the setting of the diffuser plate 20 can make the exiting surface reach further light mixing effect, realize that this side uniformly descends illuminated to go out Light.
In the present embodiment, the light guide plate 10 is preferably flat square structure, and the light source 30 is preferably some groups LED light source unit, some groups of LED light source units are arranged on the left side of the light guide plate 10, some groups of LED/light source lists The incidence surface 101 of the exiting surface 301 and the light guide plate 10 of member is oppositely arranged, and the center of some groups of LED light source units The centerline collineation of line and the light guide plate 10.
As a further improvement, the safety of the exiting surface 301 of the light source 30 and the incidence surface 101 of the light guide plate 10 It is 0.5mm apart from S, the safe distance S can suitably be adjusted according to actual use situation.The safe distance S's Setting can be effectively prevented from light guide plate 10 and touch light source 30 in use and influence its service life.
The diffuser plate 20 is arranged on the top of the light guide plate 10 and set with the distance D of light guide plate 10, institute State D >=0.The setting of the diffuser plate 20 can reach further light mixing effect in the side of the first exiting surface 11, and realize this Uniformly lower the illuminated light extraction, the light-out effect of opposite side directional inclination formula of side.
The present embodiment illuminating module overcomes the assembling mode of conventional lights, in some applications, such as when shining pattern down, no Traditional mode such as dig a hole is needed to install, frivolous, flat illuminating module can directly be jointly mounted to required installation Position, it is easy for installation, quick, save labour；The present embodiment can realize the light-out effect of directional type, compared to its of same power The diffusion type light-out effect of his light fixture, the light utilization efficiency of the present embodiment illuminating module is higher；The illuminating module of the present embodiment can be answered For indoor and outdoor application scenarios such as place lamp, Landscape Lamp, charging station illumination, decorative light, skirt lamp, desk lamp and lower illuminators, Dazzle is low, has a wide range of application.
Example IV
As shown in Figure 10 to Figure 12, the present embodiment illuminating module includes light guide plate 10 and light source 30 as shown in Figure 7, described Light source 30 is installed on the substrate 40.The light source 30 be arranged on the center of the light guide plate 10 and the center line of the light source 30 with The centerline collineation of the light guide plate 10, the set-up mode ensure that preferably light-out effect.
Preferably, the illuminating module also includes diffuser plate 20, and the diffuser plate 20 is arranged on the upper of the light guide plate 10 Side, the setting of the diffuser plate 20 can make the exiting surface reach further light mixing effect, realize that this side uniformly descends illuminated to go out Light.
In the present embodiment, the light guide plate 10 is preferably the loop configuration of flat, and the light source 30 is preferably some Group LED light source unit, some groups of LED light source units are arranged on the center of the light guide plate 10, some groups of LED/light sources The incidence surface 101 of the exiting surface 301 of unit and the light guide plate 10 is oppositely arranged, and in some groups of LED light source units The centerline collineation of heart line and the light guide plate 10.
As a further improvement, the safety of the exiting surface 301 of the light source 30 and the incidence surface 101 of the light guide plate 10 It is 0.5mm apart from S.The setting of the safe distance S can be effectively prevented from light guide plate 10 and touch light source in use 30 and influence its service life.
The diffuser plate 20 is arranged on the top of the light guide plate 10 and set with the distance D of light guide plate 10, institute State D >=0.The setting of the diffuser plate 20 can reach further light mixing effect in the side of the first exiting surface 11, and realize this Illuminated light extraction, the light-out effect of opposite side directional inclination formula are uniformly descended in side.
The present embodiment illuminating module overcomes the assembling mode of conventional lights, in some applications, such as when shining pattern down, no Traditional mode such as dig a hole is needed to install, frivolous, flat illuminating module can directly be jointly mounted to required installation Position, it is easy for installation, quick, save labour；The present embodiment can realize the light-out effect of directional type, compared to its of same power The diffusion type light-out effect of his light fixture, the light utilization efficiency of the present embodiment illuminating module is higher；The illuminating module of the present embodiment can be answered For indoor and outdoor application scenarios such as place lamp, Landscape Lamp, charging station illumination, decorative light, desk lamp and lower illuminators, dazzle is low, Have a wide range of application.
Light can in proportion be led and be penetrated up and down the two of light guide plate by the catadioptric micro unit on light guide plate by the present invention Side, is presented the light-out effect of directional type polarisation；It is additionally provided with diffuser plate above or below the light guide plate, the diffuser plate is set Put so that the light emission side reaches further light mixing effect, so as to realize that illuminated light extraction is uniformly descended in this side, another side positioning inclines The light-out effect of inclined, therefore, the present invention have wide market application foreground.
The above embodiments are merely illustrative of the technical solutions of the present invention and it is non-limiting, reference only to preferred embodiment to this hair It is bright to be described in detail.It will be understood by those within the art that, technical scheme can be modified Or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention, it all should cover in scope of the presently claimed invention It is interior.

Claims (22)

1. a kind of light guide plate, it is characterised in that
The light guide plate (10) includes the first exiting surface (11) and the second exiting surface (12),
First exiting surface (11) and second exiting surface (12) are separately positioned on the both sides of the light guide plate (10),
First exiting surface (11) is planar structure,
Second exiting surface (12) is provided with micro-structural,
The micro-structural includes the catadioptric micro unit of n relatively described second exiting surface (12) depressions, the n ＞ 0.
2. light guide plate according to claim 1, it is characterised in that the catadioptric micro unit is catadioptric pyramid (121), The catadioptric pyramid (121) is provided with forms an angle of inclination i with second exiting surface (12)nInclined side (1211), The angle of inclination inUniformly reduce from left side to the right side of the light guide plate (10).
3. light guide plate according to claim 2, it is characterised in that the angle of inclination of the previous inclined side (1211) in-1Than the angle of inclination i of the latter inclined side (1211)nIt is big 0.5 ° -1 °.
4. the light guide plate according to Claims 2 or 3, it is characterised in that the angle of inclination inAngular range for 15 °- 40°。
5. light guide plate according to claim 4, it is characterised in that the setting height h of the catadioptric pyramid (121)nFrom institute Stating left side to the right side of light guide plate (10) uniformly increases.
6. light guide plate according to claim 5, it is characterised in that the setting of the previous catadioptric pyramid (121) is high Spend hn-1Than the setting height h of the latter catadioptric pyramid (121)nLow 0.1-0.5mm.
7. the light guide plate according to claim 4 or 5, it is characterised in that the setting height hnFor 0.1-4mm.
8. light guide plate according to claim 2, it is characterised in that the drift angle of the catadioptric pyramid (121) is provided with radian (1212)。
9. light guide plate according to claim 1, it is characterised in that the catadioptric micro unit is catadioptric circular arc (122), The center of circle of the catadioptric circular arc (122) is arranged on second exiting surface (12), and the half of the catadioptric circular arc (122) Footpath rnUniformly increase from left side to the right side of second exiting surface (12).
10. light guide plate according to claim 9, it is characterised in that the radius of the previous catadioptric circular arc (122) rn-1Than the radius r of the latter catadioptric circular arc (122)nSmall 0.1-0.5mm.
11. the light guide plate according to claim 9 or 10, it is characterised in that the radius r of the catadioptric circular arc (122)nFor 0.1-4mm。
12. light guide plate according to claim 1, it is characterised in that the light guide plate (10) is made of clear material.
13. the light guide plate according to claim 1 or 12, it is characterised in that the light guide plate (10) is by PMMA or PVC or PC It is made.
14. light guide plate according to claim 1, it is characterised in that the light guide plate (10) is the square structure of flat Or loop configuration.
15. a kind of illuminating module, it is characterised in that described including light guide plate as claimed in claim 1 (10) and light source (30) Light source (30) is arranged on the center line and the light guide plate of the left side or center of the light guide plate (10) and the light source (30) (10) centerline collineation.
16. illuminating module according to claim 15, it is characterised in that the illuminating module also includes diffuser plate (20), The diffuser plate (20) is arranged on above or below the light guide plate (10).
17. illuminating module according to claim 16, it is characterised in that the catadioptric on second exiting surface (12) When micro unit is catadioptric pyramid (121), the diffuser plate (20) is arranged on the lower section of the light guide plate (10) and led with described Tabula rasa (10) distance D is set, D >=0.
18. illuminating module according to claim 16, it is characterised in that the catadioptric on second exiting surface (12) When micro unit is catadioptric circular arc (122), the diffuser plate (20) is arranged on the top of the light guide plate (10) and led with described Tabula rasa (10) distance D is set, D >=0.
19. the illuminating module according to claim 15 or 16 or 17 or 18, it is characterised in that when the light guide plate (10) is During square structure, the light source (30) is arranged on the left side of the light guide plate (10).
20. the illuminating module according to claim 15 or 16 or 17 or 18, it is characterised in that when the light guide plate (10) is During loop configuration, the light source (30) is arranged on the center of the light guide plate (10).
21. illuminating module according to claim 15, it is characterised in that the exiting surface (301) of the light source (30) and institute The safe distance S for stating the incidence surface (101) of light guide plate (10) is 0.5mm.
22. illuminating module according to claim 15, it is characterised in that the light source (30) is some groups of LED/light source lists Member.
CN201710591811.7A 2017-07-19 2017-07-19 A kind of light guide plate and illuminating module Pending CN107238888A (en)

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Application Number Priority Date Filing Date Title
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Publication number Priority date Publication date Assignee Title
CN108167666A (en) * 2017-12-26 2018-06-15 深圳市倍盛鸿照明有限公司 The even smooth LED light of high light-emitting rate and control method
CN108224132A (en) * 2018-01-03 2018-06-29 京东方科技集团股份有限公司 A kind of collimated light source module and display device
CN113175654A (en) * 2021-04-16 2021-07-27 尹松 Optical structure and lamps and lanterns of polarisation illumination

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JPH07159620A (en) * 1993-12-02 1995-06-23 Kuraray Co Ltd Light guide plate for light diffuser
JPH07333442A (en) * 1994-06-06 1995-12-22 Fujitsu Kasei Kk Edge type back light unit
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CN108224132A (en) * 2018-01-03 2018-06-29 京东方科技集团股份有限公司 A kind of collimated light source module and display device
CN113175654A (en) * 2021-04-16 2021-07-27 尹松 Optical structure and lamps and lanterns of polarisation illumination

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