CN102095162A - Lens for surface light source and surface light source light-emitting system - Google Patents
Lens for surface light source and surface light source light-emitting system Download PDFInfo
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- CN102095162A CN102095162A CN 201110034544 CN201110034544A CN102095162A CN 102095162 A CN102095162 A CN 102095162A CN 201110034544 CN201110034544 CN 201110034544 CN 201110034544 A CN201110034544 A CN 201110034544A CN 102095162 A CN102095162 A CN 102095162A
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Abstract
The invention discloses a lens corresponding to a surface light source (hereinafter referred to as a lens for the surface light source), comprising a base surface and a light-emitting surface, wherein the base surface extends within a horizontal surface; the light-emitting surface extends in a vertical direction around the base surface and comprises two outwards protruded smooth curved surfaces; the connection position of the two smooth curved surfaces forms the shape of a peanut shell through the transition of an arc-shaped curved surface; the base surface is recessed inwards towards the direction of the light-emitting surface to form a light-incoming unit array; the light-incoming unit array comprises a plurality of light-incoming units which are sequentially arranged; and each light-incoming unit is provided with a light-incoming surface which is recessed towards the direction of the light-emitting surface and is of the shape of a rotary symmetric curved surface. On the other hand, the invention also provides a surface light source light-emitting system formed by the lens for the surface light source, comprising the surface light source and the lens for the surface light source, wherein the lens for the surface light source is positioned in the light-emitting direction of the surface light source. The invention solves the problems in the prior art, therefore the surface light source light-emitting system adopting the lens for the surface light source has the advantages of higher light-emitting efficiency and more uniform illumination under the condition of unchanged cost.
Description
Technical field
The present invention relates to a kind of area source that can improve luminous efficiency with lens and the surface source luminescence system that constitutes with lens by this area source.
Background technology
Application number is that 200910147308.8 patent of invention discloses a kind of LED street lamp large-angle secondary light-distribution lens, this secondary light-distribution lens is made up of first, second light-distribution lens, wherein first light-distribution lens becomes hemisphere face or oval aspheric surface, and second light-distribution lens becomes the asymmetric curved surface of peanut hull shape and eliminate curved surface by the dazzle that main curved surface and two ends are connected to constitute; Simultaneously, application number is that 201020027110.4 utility model patent discloses a kind of LED secondary optics light-distribution lens module, comprise a transparent substrate, array is provided with and the integrated a plurality of lens body of substrate on the front of substrate, lens body is made up of the aspheric surface body of two left-right symmetry distributions and the concave shaped curved surface between two aspheric surface bodies, the exiting surface of lens body and the front of substrate seamlessly transit, and the incidence surface central authorities of lens body are provided with the cavity of a ccontaining LED.
Accompanying drawing 1 has been described a kind of as above-mentioned LED lens of the prior art with accompanying drawing 2, it is with label 500 expressions, it has lens incidence surface 500a spherical in shape substantially, and the lens exiting surface 500b that is peanut shell-shaped, lens exiting surface 500b comprises two outwards outstanding smooth surfaces, and the junction of two smooth surfaces is by arc-shaped curved surface transition shape.In the optical design for this form, often regard light source (LED) as spot light, and no matter be for the monomer LED or the LED of integrated packaged type at present, it is very big that its power has all become, and light-emitting area is also bigger, in order to increase coupling efficiency, the light source distance incidence surface is all closer generally speaking, method for designing according to spot light is no longer suitable, and this has caused the low of light extraction efficiency, so this also is the technical issues that need to address in the prior art.
Summary of the invention
In order to overcome above-mentioned shortcoming, the present invention proposes to regard light source as be made up of a lot of little spot lights area source, at each spot light design incidence surface, and then, the object of the present invention is to provide the higher area source of a kind of light extraction efficiency with lens and by its surface source luminescence system that constitutes.
According to an aspect of the present invention, a kind of area source lens are provided, be included in the interior basal plane that extends of horizontal plane, center on the exiting surface that this basal plane extends at vertical direction, exiting surface comprises two outwards outstanding smooth surfaces, the junction of two smooth surfaces forms peanut shell-shaped by the arc-shaped curved surface transition, basal plane is recessed to form the light inlet cell array to the exiting surface direction, the light inlet cell array comprises a plurality of light inlet unit that are arranged in order, and each light inlet unit has the incidence surface that is rotation symmetroid shape to exiting surface direction depression.
As further improvement, the shape of the incidence surface of light inlet unit is the part of sphere, aspheric surface, ellipsoid, paraboloid or elliptic cone, is satisfying under the prerequisite of processing request, and each light inlet unit interval is the smaller the better.For example area source is the light-emitting area of great power LED when being 20mm * 20mm square, and the little chip of each LED is the square of 2mm * 2mm mostly, so the diameter of a plurality of hemispherical incidence surfaces of light inlet cell array can be between 0.5mm～20mm.
As further improvement, multiple rule or irregularly shaped such as the arranged distribution of light inlet cell array is rectangular, circular, polygon or ellipse.Mainly be to design according to LED light-emitting area shape, when for example the great power LED light-emitting area is rectangle, the also preferred rectangle of the arrangement mode of a plurality of hemispherical-shaped aperture of high-power LED streetlight lens product incidence surface.
As further improvement, area source is made by glass, optical resin (claiming optical plastic again, for example: acrylic or PC resin etc.) material with lens, preferably adopts glass material.
As further improving, area source is formed with fixture with the bottom of lens, and fixture comprises a pair of leg for the treatment of on the stationary plane that is installed on respectively.
According to another aspect of the present invention, a kind of surface source luminescence system is provided, comprise area source and be positioned at area source lens on this area source light direction, area source is included in the basal plane that extends in the horizontal plane with lens, around the exiting surface of this basal plane in the vertical direction extension, exiting surface is peanut shell-shaped, basal plane is recessed to form the light inlet cell array to the exiting surface direction, the shape of light inlet cell array and the shape of area source are complementary, and the light inlet cell array covers the light-emitting area of whole area source, the light inlet cell array comprises a plurality of light inlet unit that are arranged in order, each light inlet unit has the incidence surface that is rotation symmetroid shape to exiting surface direction depression, the light-emitting area of area source is defined as the set be made up of a plurality of littler luminescence units, area source with the light inlet unit of lens corresponding to area source at least one luminescence unit wherein.
As further improvement, area source is parts of sphere, aspheric surface, ellipsoid, paraboloid or elliptic cone with the shape of the incidence surface of the light inlet unit of lens, and the optical axis coincidence of the luminescence unit of its rotation symmetrical center line and area source correspondence.
As further improvement, area source comprises the area source that is made of great power LED, OLED, organic EL.
As further improving, area source is formed with fixture with the bottom of lens, and fixture comprises a pair of leg for the treatment of on the stationary plane that is installed on respectively.
Owing to adopted technique scheme, make that employing area source of the present invention is higher with the light extraction efficiency of the surface source luminescence system of lens, illumination is more even.
Description of drawings
Accompanying drawing 1 is a kind of LED lens stereogram of the prior art.
Accompanying drawing 2 is a kind of LED lens front view of the prior art.
Accompanying drawing 3 is the stereogram of area source according to the present invention with the embodiment one of lens.
Accompanying drawing 4 is the front view of area source according to the present invention with the embodiment one of lens.
Accompanying drawing 5 is the right view of area source according to the present invention with the embodiment one of lens.
Accompanying drawing 6 is the vertical view of area source according to the present invention with the embodiment one of lens.
Picture in the accompanying drawing 7 shows the optics emulation resulting 10 meters long way face Illumination Distribution situations of area source according to the present invention with the embodiment one of the surface source luminescence system of lens composition.
Chart in the accompanying drawing 8 shows the emergent light directional property distribution situation that the optics emulation of the embodiment one of the surface source luminescence system that area source according to the present invention forms with lens obtains.
Accompanying drawing 9 is the stereogram of area source according to the present invention with the embodiment two of lens.
Accompanying drawing 10 is the vertical view of area source according to the present invention with the embodiment two of lens.
Picture in the accompanying drawing 11 shows the optics emulation resulting 10 meters long way face Illumination Distribution situations of area source according to the present invention with the embodiment two of the surface source luminescence system of lens composition.
Chart in the accompanying drawing 12 shows the emergent light directional property distribution situation that the optics emulation of the embodiment two of the surface source luminescence system that area source according to the present invention forms with lens obtains.
Accompanying drawing 13 is the stereogram of area source according to the present invention with the embodiment three of lens.
Accompanying drawing 14 is the vertical view of area source according to the present invention with the embodiment three of lens.
Picture in the accompanying drawing 15 shows the optics emulation resulting 10 meters long way face Illumination Distribution situations of area source according to the present invention with the embodiment three of the surface source luminescence system of lens composition.
Chart in the accompanying drawing 16 shows the emergent light directional property distribution situation that the optics emulation of the embodiment three of the surface source luminescence system that area source according to the present invention forms with lens obtains.
Accompanying drawing 17 is the stereogram of area source according to the present invention with the embodiment four of lens.
Accompanying drawing 18 is the front view of area source according to the present invention with the embodiment four of lens, and the lateral projection of incidence surface is shaped as ellipse.
Accompanying drawing 19 is the vertical view of area source according to the present invention with the embodiment four of lens, and the orthographic projection of incidence surface is shaped as circle.
Picture in the accompanying drawing 20 shows the optics emulation resulting 10 meters long way face Illumination Distribution situations of area source according to the present invention with the embodiment four of the surface source luminescence system of lens composition.
Chart in the accompanying drawing 21 shows the emergent light directional property distribution situation that the optics emulation of the embodiment four of the surface source luminescence system that area source according to the present invention forms with lens obtains.
Accompanying drawing 22 shows the embodiment that has the area source of fixture with lens according to of the present invention.
Accompanying drawing 23 shows the embodiment that has the area source of another kind of fixture with lens according to of the present invention.
Accompanying drawing 24 is the stereogram according to the embodiment of surface source luminescence of the present invention system.
Accompanying drawing 25 is the front view according to the embodiment of surface source luminescence of the present invention system.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, thereby protection scope of the present invention is made more explicit defining so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that.
Embodiment one:
Referring to accompanying drawing 3 to shown in the accompanying drawing 6, area source in the present embodiment is included in the interior basal plane that extends of horizontal plane, centers on the exiting surface 100b that this basal plane extends at vertical direction with lens 100, exiting surface 100b comprises two outwards outstanding smooth surfaces, the junction of two smooth surfaces forms peanut shell-shaped by the arc-shaped curved surface transition, basal plane is recessed to form the light inlet cell array to the exiting surface direction, the light inlet cell array comprises a plurality of light inlet unit that are arranged in order, and each light inlet unit has the incidence surface 100a that is rotation symmetroid shape to exiting surface direction depression.Area source is made by glass, optical resin (claiming optical plastic again, for example: acrylic or PC resin) material with lens, preferably adopts glass material.The shape of the incidence surface 100a of light inlet unit can be the part of sphere, aspheric surface, ellipsoid, paraboloid or elliptic cone, is satisfying under the prerequisite of processing request, and each light inlet unit interval is the smaller the better.As can be seen, the incidence surface 100a of light inlet unit is hemispherical in the present embodiment from each accompanying drawing, the about 5.79mm of its diameter, 16 incidence surfaces be hemispheric light inlet unit totally 4 row 4 row be arranged as rectangle.
Picture in the accompanying drawing 7 shows the optics emulation resulting 10 meters long way face Illumination Distribution situations of area source according to the present invention with the embodiment one of the surface source luminescence system of lens composition; Chart in the accompanying drawing 8 shows the emergent light directional property distribution situation that the optics emulation of the embodiment one of the surface source luminescence system that area source according to the present invention forms with lens obtains.
Embodiment two
Referring to accompanying drawing 9 to shown in the accompanying drawing 12, area source in the present embodiment is with similar among lens 200 and the embodiment one, difference is that the shape of the incidence surface 200a of light inlet unit is hemispherical in the present embodiment, the about 11.88mm of its diameter, and 7 incidence surfaces are that hemispheric light inlet unit cell arrangement is for circular.
Picture in the accompanying drawing 11 shows the optics emulation resulting 10 meters long way face Illumination Distribution situations of area source according to the present invention with the embodiment two of the surface source luminescence system of lens composition; Chart in the accompanying drawing 12 shows the emergent light directional property distribution situation that the optics emulation of the embodiment two of the surface source luminescence system that area source according to the present invention forms with lens obtains.
Embodiment three:
To shown in the accompanying drawing 16, the area source in the present embodiment is similar to above embodiment with lens 300 referring to accompanying drawing 13, and difference is that the shape of the incidence surface 300a of light inlet unit is hemispherical in the present embodiment, the about 2mm of its diameter.100 incidence surfaces be hemispheric light inlet unit totally 10 row 10 row be arranged as rectangle, its design idea is area source corresponding little chip of LED of incidence surface with a hemispherical-shaped aperture of lens.
Picture in the accompanying drawing 15 shows the optics emulation resulting 10 meters long way face Illumination Distribution situations of area source according to the present invention with the embodiment three of the surface source luminescence system of lens composition; Chart in the accompanying drawing 16 shows the emergent light directional property distribution situation that the optics emulation of the embodiment three of the surface source luminescence system that area source according to the present invention forms with lens obtains.
Embodiment four:
Referring to accompanying drawing 17 to shown in the accompanying drawing 21, area source in the present embodiment is similar to above embodiment with lens 400, difference is that the shape of the incidence surface 400a of light inlet unit is semielliptical shape in the present embodiment, its major axis 9.94mm, the light inlet unit that minor axis 5mm, 9 incidence surfaces are semielliptical shape totally 3 row 3 row is arranged as rectangle.
Picture in the accompanying drawing 20 shows the optics emulation resulting 10 meters long way face Illumination Distribution situations of area source according to the present invention with the embodiment four of the surface source luminescence system of lens composition; Chart in the accompanying drawing 21 shows the emergent light directional property distribution situation that the optics emulation of the embodiment four of the surface source luminescence system that area source according to the present invention forms with lens obtains.
Referring to accompanying drawing 24 and accompanying drawing 25, provided a kind of surface source luminescence system in the present embodiment, comprise area source 11 and be positioned at area source on this area source light direction with lens 10, area source 11 comprises the area source that is made of great power LED, OLED, organic EL.Area source is included in the basal plane 101 that extends in the horizontal plane with lens 10, around the exiting surface 102 of this basal plane in the vertical direction extension, exiting surface 102 is peanut shell-shaped, basal plane 101 is recessed to form light inlet cell array 103 to the exiting surface direction, the shape of the shape of light inlet cell array 103 and area source 11 is complementary, and light inlet cell array 103 covers the light-emitting area of whole area source 11, light inlet cell array 103 comprises a plurality of light inlet unit that are arranged in order, each light inlet unit has the incidence surface that is rotation symmetroid shape to exiting surface direction depression, the light-emitting area of area source 11 is regarded as the set of being made up of a plurality of little luminescence units, area source with the light inlet unit of lens 10 corresponding to area source 11 at least one luminescence unit wherein.Area source can be the part of sphere, aspheric surface, ellipsoid, paraboloid or elliptic cone with the incidence surface shape of lens light inlet unit, and the optical axis coincidence of the luminescence unit of its rotation symmetrical center line and area source correspondence.
Referring to accompanying drawing 22, area source also is formed with fixture with the bottom of lens 10, and this fixture comprises the leg that a pair of difference is extended round about, can be installed on respectively and treats on the stationary plane thereby each leg has smooth lower surface; Referring to accompanying drawing 23, all offer the through hole that passes for screw on each leg, treat stationary plane (aluminium base) thereby area source is fixed in lens 10, the example that it should be noted that mounting means herein is only for schematic and nonrestrictive.
Because therefore (the integrated packaged type LED) that existing great power LED normally is packaged together and is formed by a plurality of little chips can regard a little chip as a LED spot light, corresponding incidence surface; Can as 3 little chips, regard a plurality of little chips as a LED spot light, corresponding incidence surface does not promptly limit the corresponding incidence surface of a chip, does not limit the position and the shape of each little spot light yet.But the corresponding incidence surface of a preferred little chip, owing to adopted above technical scheme, feasible employing area source of the present invention is compared with existing high-power LED street lamp with the surface source luminescence system of lens, has the following advantages:
1, light extraction efficiency is higher: by the optics simulation result as can be known, when as the street lighting device, when adopting the luminescent system of the luminous lens composition shown in accompanying drawing 1 and the accompanying drawing 2, the efficient of the light that the road surface can receive is 85.92%; And the luminescent system that the area source that adopts embodiment one is formed with lens, the efficient of the light that can receive on the road surface is 89.93%, adopt the luminescent system of the area source of embodiment two with the lens composition, the efficient of the light that can receive on the road surface is 88.56%, adopt the luminescent system of the area source of embodiment three with the lens composition, the efficient of the light that can receive on the road surface is 90.67%, adopt the luminescent system of the area source of embodiment four with the lens composition, the efficient of the light that can receive on the road surface is 88.67%.Here it is pointed out that the area source among above each embodiment, is the area source that the led chip by 10*10 is packaged into, and thus also as can be seen, is constituting one to one under the situation with luminescence unit, and the efficient of the light that can receive on the road surface reaches maximum.
2, road illumination is even: hot spot is rectangle or ellipse on the road surface, and the emergent light directional property is that bat is wing.
By foregoing, be not difficult to find out that the present invention is that a kind of light extraction efficiency is higher, illumination more uniform surface light source with lens and by its surface source luminescence system that constitutes.Above embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people that is familiar with this technology understand content of the present invention and is also implemented, and can not limit protection scope of the present invention with this.The light source of indication of the present invention not only refers to led light source, as long as light-emitting area is bigger, can be counted as area source, and all equivalences that spirit essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (9)
1. area source lens, be included in the interior basal plane that extends of horizontal plane, center on the exiting surface that this basal plane extends at vertical direction, described exiting surface is peanut shell-shaped, it is characterized in that: described basal plane is recessed to form the light inlet cell array to described exiting surface direction, described light inlet cell array comprises a plurality of light inlet unit that are arranged in order, and each described light inlet unit has the incidence surface that is rotation symmetroid shape to described exiting surface direction depression.
2. area source lens according to claim 1 is characterized in that: the shape of the incidence surface of described light inlet unit is the part of sphere, aspheric surface, ellipsoid, hyperboloid, paraboloid or elliptic cone.
3. area source lens according to claim 1 is characterized in that: arranging of described light inlet cell array is rectangular, circular, polygon or ellipse.
4. area source lens according to claim 1 is characterized in that: described area source is made by glass, optical resin material with lens.
5. according to the described area source lens of above arbitrary claim, it is characterized in that: described area source is formed with fixture with the bottom of lens, and described fixture comprises a pair of leg for the treatment of on the stationary plane that is installed on respectively.
6. surface source luminescence system, comprise area source and be positioned at area source lens on this area source light direction, it is characterized in that: described area source is included in the basal plane that extends in the horizontal plane with lens, around the exiting surface of this basal plane in the vertical direction extension, described exiting surface is peanut shell-shaped, described basal plane is recessed to form the light inlet cell array to described exiting surface direction, the shape of described light inlet cell array and the shape of described area source are complementary, and described light inlet cell array covers the light-emitting area of whole area source, described light inlet cell array comprises a plurality of light inlet unit that are arranged in order, each described light inlet unit has the incidence surface that is rotation symmetroid shape to described exiting surface direction depression, the light-emitting area of described area source is defined as the set be made up of a plurality of luminescence units, and each described light inlet unit correspondence is at least one luminescence unit wherein.
7. surface source luminescence according to claim 6 system, it is characterized in that: the shape of the incidence surface of described light inlet unit is the part of sphere, aspheric surface, ellipsoid, hyperboloid, paraboloid or elliptic cone, and the optical axis coincidence of the luminescence unit of its rotation symmetrical center line and correspondence.
8. surface source luminescence according to claim 6 system, it is characterized in that: described area source comprises the area source that is made of great power LED, OLED, organic EL.
9. according to the arbitrary described surface source luminescence of claim 6 to 8 system, it is characterized in that: described area source is formed with fixture with the bottom of lens, and described fixture comprises a pair of leg for the treatment of on the stationary plane that is installed on respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110034544 CN102095162A (en) | 2011-02-01 | 2011-02-01 | Lens for surface light source and surface light source light-emitting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110034544 CN102095162A (en) | 2011-02-01 | 2011-02-01 | Lens for surface light source and surface light source light-emitting system |
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| CN102095162A true CN102095162A (en) | 2011-06-15 |
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| CN 201110034544 Pending CN102095162A (en) | 2011-02-01 | 2011-02-01 | Lens for surface light source and surface light source light-emitting system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148449A (en) * | 2013-03-25 | 2013-06-12 | 苏州奥浦迪克光电技术有限公司 | LED (light emitting diode) lens with direct-lit type liquid crystal backlight |
| CN103148417A (en) * | 2013-03-25 | 2013-06-12 | 苏州奥浦迪克光电技术有限公司 | LED (light emitting diode) backlight module for direct-lit type liquid crystal backlight |
| CN105864720A (en) * | 2016-05-30 | 2016-08-17 | 众普森科技（株洲）有限公司 | Strip-shaped light distribution unit and light distribution assembly |
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| CN201363572Y (en) * | 2008-12-26 | 2009-12-16 | 黄金鹿 | LED light source module |
| CN101649991A (en) * | 2008-08-14 | 2010-02-17 | 富士迈半导体精密工业（上海）有限公司 | Illumination device |
| CN201443727U (en) * | 2008-11-09 | 2010-04-28 | 曹金城 | Accessory optical device suitable for secondary light distribution of LED road lamps |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649991A (en) * | 2008-08-14 | 2010-02-17 | 富士迈半导体精密工业（上海）有限公司 | Illumination device |
| CN201443727U (en) * | 2008-11-09 | 2010-04-28 | 曹金城 | Accessory optical device suitable for secondary light distribution of LED road lamps |
| CN201363572Y (en) * | 2008-12-26 | 2009-12-16 | 黄金鹿 | LED light source module |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148449A (en) * | 2013-03-25 | 2013-06-12 | 苏州奥浦迪克光电技术有限公司 | LED (light emitting diode) lens with direct-lit type liquid crystal backlight |
| CN103148417A (en) * | 2013-03-25 | 2013-06-12 | 苏州奥浦迪克光电技术有限公司 | LED (light emitting diode) backlight module for direct-lit type liquid crystal backlight |
| CN105864720A (en) * | 2016-05-30 | 2016-08-17 | 众普森科技（株洲）有限公司 | Strip-shaped light distribution unit and light distribution assembly |
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Application publication date: 20110615 |