CN103375767A - Lens with residual light blocking structure and module of lens - Google Patents
Lens with residual light blocking structure and module of lens Download PDFInfo
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- CN103375767A CN103375767A CN2012101233387A CN201210123338A CN103375767A CN 103375767 A CN103375767 A CN 103375767A CN 2012101233387 A CN2012101233387 A CN 2012101233387A CN 201210123338 A CN201210123338 A CN 201210123338A CN 103375767 A CN103375767 A CN 103375767A
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Abstract
The invention discloses a lens with a residual light blocking structure and a module of the lens. The lens with the residual light blocking structure is in a cup structure which is wide at the upper end and narrow at the lower end, a light-outgoing surface is arranged at the top of the lens, a first light-incoming surface and a second light-incoming surface are formed in the bottom of the lens in a concave mode to form an accommodating space and a light-incoming hole, the accommodating space is used for accommodating a light-emitting source, and the residual light blocking structure is arranged on the first light-incoming surface in a protruding mode and used for blocking residual light of the light-emitting source. The distance between the first light-incoming surface and the light-incoming hole is S, the distance between the bottom of the residual light blocking structure and the light-incoming hole is L, and the L is enabled to satisfy relations that 0<L< (3/8)*S and S>=0.8*D. The residual light caused by reflection of the light-emitting source at the position of the second light-incoming surface can be blocked by the residua light blocking structure.
Description
Technical field:
The present invention is relevant with the technical field of optical lens, particularly about a kind of lens and module thereof of tool gear remaining light structure, uses so that the light of a light emitting source ejaculation behind the lens of this tool gear remaining light structure, is effectively hindered the but generation of remaining light phenomenon.
Background technology:
Utilize light emitting diode (Light Emitting Diode in each field for being adjusted at, LED) be the radiation response of light emitting source, general industry is to utilize an optical lens to cover in this light emitting diode top, and then makes the light of this light emitting diode ejaculation produce the better light shape layout of all kinds of applicabilities behind this optical lens.For example, with regard to lighting field, can be for the illumination of LED light fixture, all the characteristic such as light or illumination zone is improved.Please continue to consult Fig. 1～3, its structural profile schematic diagram, LED source that is respectively known LED optical lens light optical track schematic diagram and irradiation level figure after behind the optical lens.As shown in the figure, this optical lens 1 is by optical elements that transparent material was made into integration such as silica gel, acryl, Merlon or glass, and integral body is cup type structure wide at the top and narrow at the bottom, these optical lens 1 one ends have an exiting surface 10, and the other end then is concaved with one first incidence surface 11 and one second incidence surface 12.Wherein these the first incidence surface 11 peripheries connect one of this second incidence surface 12 lateral margin and form an accommodation space, another lateral margin of this second incidence surface 12 is then around forming an incidence hole 13, and this accommodation space is provided with an accommodating light emitting diode (not shown) so that these the first incidence surface 11 correspondences place this light emitting diode top and this second incidence surface 12 to be surrounded on this light emitting diode periphery.Yet after known optical lens 1 was incorporated into this light emitting diode, its irradiation light shape can't be avoided the generation of remaining light phenomenon and be an impediment to follow-up utilization.So-called remaining light phenomenon pointer is to existing distribution of light phenomenon beyond the target irradiation area.And the reason that causes this remaining light phenomenon is few part light of this light emitting diode expose to this second incidence surface 12 and produce first reflection after, produce for the second time reflection in this optical lens 1 medial surface again, at last the peripheral halation distribution scenario beyond the irradiated region of centre among these exiting surface 10 ejaculations form as shown in Figure 3.Therefore, how effectively to hinder the but problem that is produced as human desires improvement of the present invention of remaining light phenomenon.
Summary of the invention:
Because the disappearance of known technology, the present invention's purpose is to provide a kind of lens and module thereof that prevents the tool gear remaining light structure of remaining light phenomenon, makes whereby a LED source can obtain a better smooth shape effect behind the present invention and to be provided with each field such as follow-up illumination applicable.
According to aforementioned purpose, the present invention proposes a kind of lens of tool gear remaining light structure, be cup-shaped structure wide at the top and narrow at the bottom, and its top is provided with an exiting surface, the bottom is concaved with one first incidence surface and one second incidence surface, this the first incidence surface lateral margin is connected with one of this second incidence surface lateral margin and arranges and form an accommodation space and in order to an accommodating light emitting source, another lateral margin of this second incidence surface is then around forming an incidence hole again, this incidence hole width is D, it is characterized in that: this first incidence surface place of the lens of this tool gear remaining light structure convexes with a gear remaining light structure, is provided with stopping by this light emitting source and launches and light after this second incidence surface is reflected; Wherein the distance of this first incidence surface and this incidence hole is S, is L and be somebody's turn to do the distance of keeping off remaining light structure bottom and this incidence hole, and should keep off the remaining light structure with respect to the satisfied 0＜L of the distance of this incidence hole＜(3/8) * S, reaches the relational expression of S 〉=0.8*D.
Wherein, this gear remaining light structure can be extended towards this incidence hole direction by this first incidence surface and brought together and form inverted cone-shaped structure.And be light source kind, light type demand or the gear remaining light effect for difference, the surperficial system of this gear remaining light structure can be arranged to convex arc shaped, concave arc shape, plane or one of them person of meander-like.Further, for strengthening stopping the generation of remaining light phenomenon, the surface of this gear remaining light structure can be set to cloudy surface.
On the other hand, this exiting surface also can be concaved with one expect steathily the hole and to should the first incidence surface size arrange, in order to improve strong, the equal relatively poor disappearance of light effect of light emitting source middle section luminous intensity.Whereby, can thoroughly hinder the but generation of remaining light phenomenon, and also can effectively promote its all effect of light for the target irradiation area, significantly promote the applicability in other fields such as follow-up illumination.
In addition, for reaching above-mentioned purpose, the present invention also proposes a kind of lens module of tool gear remaining light structure in addition.The lens module of this tool gear remaining light structure is cup-shaped structure wide at the top and narrow at the bottom, and its top is provided with an exiting surface, the bottom is concaved with one first incidence surface and one second incidence surface, this the first incidence surface lateral margin is connected setting and forms an accommodation space with one of this second incidence surface lateral margin, and this accommodation space system is provided with a light emitting source, another lateral margin of this second incidence surface is then around forming an incidence hole again, it is characterized in that: this first incidence surface place of the lens module of this tool gear remaining light structure convexes with a gear remaining light structure, is provided with stopping by this light emitting source and launches and light after this second incidence surface is reflected; Wherein should gear remaining light structure bottom and this light emitting source distance be L "; and the light that this light emitting source is launched reflex to through this second incidence surface this tool gear remaining light structure lens module a central shaft and form foveal reflex point; this foveal reflex point and this light emitting source be apart from being P, and this gear remaining light structure bottom and this light emitting source are apart from satisfying L "≤relational expression of P.
The lens module of this tool gear remaining light structure is specifically adjusted the physical dimension of this gear remaining light structure for the rear relative position of this light emitting source assembling, and the light shape that the lens module that makes this tool keep off the remaining light structure is launched is thoroughly hindered the but generation of remaining light phenomenon.
Description of drawings:
Fig. 1 is the structural profile schematic diagram of known LED optical lens.
Fig. 2 light optical track schematic diagram that is the known luminescence diode light-source after behind the optical lens.
Fig. 3 is the irradiation level figure of known luminescence diode light-source behind optical lens.
Fig. 4 is the lens preferred embodiment structural profile schematic diagram of tool gear remaining light structure of the present invention.
Fig. 5 is the preferred embodiment remaining light optical track schematic diagram after a light emitting diode is incorporated into the present invention.
Fig. 6 is the preferred embodiment irradiation level figure after a light emitting diode is incorporated into the present invention.
Fig. 7 is the preferred embodiment distribution curve flux figure after a light emitting diode is incorporated into the present invention.
Fig. 8 is another preferred embodiment remaining light optical track schematic diagram after a light emitting diode is incorporated into the present invention.
Fig. 9 is another preferred embodiment irradiation level figure after a light emitting diode is incorporated into the present invention.
Figure 10 is another preferred embodiment distribution curve flux figure after a light emitting diode is incorporated into the present invention.
Figure 11 is the another preferred embodiment structural representation of lens of tool gear remaining light structure of the present invention.
Figure 12 is the lens module preferred embodiment structural profile schematic diagram of tool gear remaining light structure of the present invention.
The specific embodiment:
The present invention is further described below in conjunction with specific embodiments and the drawings.
See also Fig. 4～7, its lens preferred embodiment structural profile schematic diagram, light emitting diode that is respectively tool gear remaining light structure of the present invention is incorporated into preferred embodiment remaining light optical track schematic diagram, irradiation level figure and the distribution curve flux figure behind the present invention.As shown in the figure, the lens 2 of this tool gear remaining light structure can be made into integration by transparent materials such as silica gel, acryl, Merlon or glass, and the lens 2 of this tool gear remaining light structure are provided with being combined with a light emitting source (not shown), the light of being launched by this light emitting source in order to guiding forms better light shape distribution behind the present invention, that is is effectively hindered the but generation of remaining light phenomenon.The lens 2 of this tool gear remaining light structure are cup-shaped structure wide at the top and narrow at the bottom, its top is provided with an exiting surface 20, the bottom is concaved with one first incidence surface 21 and one second incidence surface 22, these the first incidence surface 21 lateral margins are connected with one of this second incidence surface 22 lateral margin and arrange and form an accommodation space and in order to accommodating this light emitting source, another lateral margin of this second incidence surface 22 is then around forming an incidence hole 23 again, the width of this incidence hole 23 is D, it is characterized in that: these the first incidence surface 21 places of the lens 2 of this tool gear remaining light structure convex with a gear remaining light structure 24, are provided with stopping by this light emitting source and launch and light after this second incidence surface 22 is reflected.And in order effectively to stop remaining light and to take into account the equal light effect of its irradiation, this gear remaining light structure 24 can be set to be extended towards these incidence hole 23 directions by this first incidence surface 21 and bring together and form inverted cone-shaped structure.For example take light emitting diode as this light emitting source as example, the setting that is inverted cone-shaped structure by this gear remaining light structure 24 can be dispersed adjustment with the stronger characteristic of general light emitting diode central authorities' emitting area luminous intensity.Thus, the light shape that the light source that light emitting diode is launched is formed behind the present invention can effectively be hindered the but generation of remaining light phenomenon, and the simultaneously all light distribution for light shape also obtains significantly to improve.Again, so-called remaining light phenomenon is because of due to the small part light of this light emitting source is after these second incidence surface, 22 reflections.Therefore in order really to reach the effect that stops remaining light, the size of this gear remaining light structure 24 arranges lens 2 with respect to this tool gear remaining light structure of the present invention to be had certain condition and concerns that the beginning can get its effect.So, suppose that this first incidence surface 21 and the distance of this incidence hole 23 are S, and the distance that should keep off remaining light structure 24 bottoms and this incidence hole 23 is L, then should keep off remaining light structure 24 with respect to the satisfied 0＜L of the distance of this incidence hole 23＜(3/8) * S, and the relational expression of S 〉=0.8*D.In addition, for light source kind, light type demand or the gear remaining light effect of difference, the surperficial system of this gear remaining light structure 24 can be arranged to convex arc shaped, concave arc shape, plane or one of them person of meander-like.Reason be at small part light when this second incidence surface 22 reflexes to this gear remaining light structure 24, its surface be arranged to convex arc shaped, concave arc shape, plane or meander-like all can cause different after continuous refraction effects, and then the light shape that affect after the bright dipping shows.The light shape that whereby, the section that runs business into particular one can be set through the surface of this gear remaining light structure 24 is adjusted and variation.Further, for strengthening stopping the generation of remaining light phenomenon, the surperficial system of this gear remaining light structure can be arranged to cloudy surface simultaneously, and this purpose and reason and above-mentioned explanation are roughly the same, so no longer repeat in this.
Please again consult known Fig. 2,3 and Fig. 5 of the present invention～7.As shown in the figure, at satisfied 0＜L＜(3/8) * S, and under the relational expression of S 〉=0.8*D, through experimental result as can be known, work as S=13.00mm, when D=15.00mm and L=4.80mm, the light of few part after these the second incidence surface 22 reflections is stopped by this gear remaining light structure 24, that is among comparison chart 2 and Fig. 5 after 22 reflections of this second incidence surface in the amount of light of these exiting surface 20 ejaculations, the relative Fig. 2 of Fig. 5 reduces many.Halation beyond comparison diagram 6 and its target irradiation area of Fig. 3, its Fig. 6 also obviously significantly reduces with respect to Fig. 3, and this trend is by also visible its effect of the distribution curve flux figure of Fig. 5 correspondence.Therefore meeting this set under above-mentioned relation formula gear remaining light structure 24, really can reach compared to known technology and hinder the but generation of remaining light phenomenon.Special instruction person, drawn for the light that causes the remaining light phenomenon merely for light optical track figure after known technology Fig. 2 or Fig. 5 of the present invention, and corresponding to the irradiance figure of Fig. 3 or Fig. 6, optical phenomenon referred to enclose the halation distribution outside Fig. 3 or Fig. 6 central target irradiation area are in addition after wherein Fig. 2 or Fig. 5 caused, and this explanation.
Please renew to consult Fig. 8～10, be respectively another preferred embodiment remaining light optical track schematic diagram, irradiation level figure and distribution curve flux figure after a light emitting diode is incorporated into the present invention.As shown in the figure, at satisfied 0＜L＜(3/8) * S, and under the relational expression of S 〉=0.8*D, through experimental result as can be known, work as S=13.00mm, when D=15.00mm and L=3.25mm, the light of few part after these the second incidence surface 22 reflections is almost completely stopped by this gear remaining light structure 24.Therefore at the irradiance figure of correspondence (shown in Figure 9) and distribution curve flux figure (shown in Figure 10), the halation beyond its target irradiation area almost completely disappears.Therefore meeting this set under above-mentioned relation formula gear remaining light structure 24, really can reach compared to known technology and hinder the but generation of remaining light phenomenon, and the less remaining light of L hinders, and but effect is being better.
Please consult again Figure 11, be the another preferred embodiment structural representation of lens of tool gear remaining light structure of the present invention.With regard to present embodiment, structure is identical with above stated specification haply, so only describe for the difference place in this, other then no longer repeats.And present embodiment is to be concaved with one to expect steathily hole 200 and position that should the first incidence surface 21 and size are arranged in these exiting surface 20 places, whereby in order to improve strong, the equal relatively poor disappearance of light effect of this light emitting source middle section luminous intensity.Therefore, the setting of comprehensive said structure, the present invention can thoroughly hinder the but generation of remaining light phenomenon, and also can effectively promote its all effect of light for the target irradiation area, significantly promotes the applicability in other each fields such as follow-up illumination.
See also Figure 12, be the lens module preferred embodiment structural profile schematic diagram of tool gear remaining light structure of the present invention.As shown in the figure, present embodiment is the lens module 3 that proposes a kind of tool gear remaining light structure.The lens module 3 of this tool gear remaining light structure is cup-shaped structure wide at the top and narrow at the bottom, and its top is provided with an exiting surface 20, the bottom is concaved with one first incidence surface 21 and one second incidence surface 22, these the first incidence surface 21 lateral margins are to be connected with one of this second incidence surface 22 lateral margin to arrange and form an accommodation space, and this accommodation space is provided with a light emitting source 4, another lateral margin of this second incidence surface 22 is then around forming an incidence hole 23 again, it is characterized in that: these the first incidence surface 21 places of the lens module 3 of this tool gear remaining light structure convex with a gear remaining light structure 24, are provided with stopping by this light emitting source 4 and launch and light after this second incidence surface 22 is reflected; Wherein should gear remaining light structure 24 bottoms and this light emitting source 4 distances be L "; and the light that this light emitting source 4 launch reflex to through this second incidence surface 22 this tool gear remaining light structure lens module 3 a central shaft I and form a foveal reflex point 5; this foveal reflex point 5 and this light emitting source be apart from being P, and this gear remaining light structure bottom and this light emitting source are apart from being to satisfy L "≤relational expression of P.So, the lens module 3 of this tool gear remaining light structure of present embodiment is for the relative position after these light emitting source 4 assemblings, the concrete physical dimension of adjusting this gear remaining light structure 24, the light shape that the lens module 3 that makes this tool keep off the remaining light structure is launched gets and effectively hinders the but generation of remaining light phenomenon.At first, the lens module 3 of this tool gear remaining light structure change these light emitting source 4 sidelight optical paths with this gear remaining light structure 24 and consume the remaining light energy and significantly eliminate unnecessary after light.Therefore, when the small part light of this light emitting source 4 with angle θ
1, for example after angles are emitted to this second incidence surface 22, sentence angle θ in this second incidence surface 22 less than or equal to 60 degree greater than 0
2Reflex to this central shaft I and form a foveal reflex point 5, so this foveal reflex point 5 is positioned on this central shaft I, and this foveal reflex point 5 to the distance of this light emitting source 4 is P, and P=P
1+ P
2, P again
2=(D/2) * tan θ
1, P
1=(D/2) * tan (2 θ
2-θ
1), D is the width of this incidence hole 23.So P=(D/2) * (tan (2 θ
2-θ
1)+tan θ
1)).That is, make these gear remaining light structure 24 bottoms to the distance L of this light emitting source 4 " less than distance P, can reach and prevent that remaining light from disturbing the effect of optical path distributions, even if further dwindle L " also do not affect remaining light and hinder but effect.Therefore, the lens module 3 of this tool of present embodiment gear remaining light structure is take this concept as its implementation, and owing to distance P with the width D of this incidence hole 23 and in the reflection angle θ at these the second incidence surface 22 places
2Determine it.Therefore, present embodiment can utilize this P=(D/2) * (tan (2 θ
2-θ
1)+tan θ
1)) relational expression, effectively adjust the relative size of this gear remaining light structure 24, thoroughly hinder the but generation of remaining light phenomenon.
The above person, only for the present invention's preferred embodiment, it is not the scope that limits the invention process, so done equivalence or variation person easily Deng haveing the knack of this technology, change and modification in the spirit that does not break away from the present invention and the lower equalization of being done of scope, all should be covered by in the present invention's the claim.
Claims (6)
1. a tool keeps off the lens of remaining light structure, be cup-shaped structure wide at the top and narrow at the bottom, and its top is provided with an exiting surface, the bottom is concaved with one first incidence surface and one second incidence surface, this the first incidence surface lateral margin is connected with one of this second incidence surface lateral margin and arranges and form an accommodation space and in order to an accommodating light emitting source, then around forming an incidence hole, this incidence hole width is D to another lateral margin of this second incidence surface, it is characterized in that again:
This first incidence surface place of the lens of this tool gear remaining light structure convexes with a gear remaining light structure, is provided with stopping by this light emitting source and launches and light after this second incidence surface is reflected; Wherein the distance of this first incidence surface and this incidence hole is S, is L and be somebody's turn to do the distance of keeping off remaining light structure bottom and this incidence hole, and should keep off the remaining light structure with respect to the satisfied 0＜L of the distance of this incidence hole＜(3/8) * S, reaches the relational expression of S 〉=0.8*D.
2. such as the lens of the tool gear remaining light structure as described in the 1st of the claim, wherein this gear remaining light structure is brought together and is formed inverted cone-shaped structure towards this incidence hole direction extension by this first incidence surface.
3. such as the lens of the tool gear remaining light structure as described in the 2nd of the claim, wherein the surface of this gear remaining light structure is convex arc shaped, concave arc shape, plane or one of them person of meander-like.
4. such as the lens of the tool gear remaining light structure as described in the 3rd of the claim, surface that wherein should gear remaining light structure is the cloudy surface setting.
5. such as the 1st to 4 of the claim lens of the tool gear remaining light structure as described in each wherein, wherein this exiting surface is concaved with one and expects steathily the hole.
6. a tool keeps off the lens module of remaining light structure, be cup-shaped structure wide at the top and narrow at the bottom, and its top is provided with an exiting surface, the bottom is concaved with one first incidence surface and one second incidence surface, this the first incidence surface lateral margin system is connected setting and forms an accommodation space with one of this second incidence surface lateral margin, and this accommodation space is provided with a light emitting source, and another lateral margin of this second incidence surface then around forming an incidence hole, is characterized in that again:
This first incidence surface place of the lens module of this tool gear remaining light structure convexes with a gear remaining light structure, is provided with stopping by this light emitting source and launches and light after this second incidence surface is reflected; Wherein should gear remaining light structure bottom and this light emitting source distance be L "; and the light that this light emitting source is launched through this second incidence surface reflex to this tool keep off the remaining light structure lens module a central shaft and form foveal reflex point; this foveal reflex point and this light emitting source be apart from being P, and this gear remaining light structure bottom and this light emitting source satisfy L apart from system "≤relational expression of P.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210123338.7A CN103375767B (en) | 2012-04-25 | 2012-04-25 | The lens of tool gear remaining light structure and module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210123338.7A CN103375767B (en) | 2012-04-25 | 2012-04-25 | The lens of tool gear remaining light structure and module thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103375767A true CN103375767A (en) | 2013-10-30 |
| CN103375767B CN103375767B (en) | 2015-12-16 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132305A (en) * | 2014-07-04 | 2014-11-05 | 佛山市中山大学研究院 | Condensing lens |
| CN106051622A (en) * | 2016-04-25 | 2016-10-26 | 惠州市西顿工业发展有限公司 | Small-angle lens and lamp |
| CN108224110A (en) * | 2017-01-25 | 2018-06-29 | 佛山市中山大学研究院 | A kind of method for eliminating lens veiling glare |
| CN110566828A (en) * | 2019-10-11 | 2019-12-13 | 欧普照明股份有限公司 | Light distribution system, light source module comprising same and lamp |
| CN110886986A (en) * | 2019-12-05 | 2020-03-17 | 延锋伟世通电子科技（上海）有限公司 | Double-light-source backlight illumination system |
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| CN102062350A (en) * | 2010-11-18 | 2011-05-18 | 鸿富锦精密工业（深圳）有限公司 | Light distribution device of LED (light-emitting diode) light source |
| CN102401319A (en) * | 2011-11-25 | 2012-04-04 | 东莞市永兴电子科技有限公司 | Light emitting diode (LED) secondary optical lens |
| CN202955624U (en) * | 2012-04-25 | 2013-05-29 | 扬州雷笛克光学公司 | Lens with residual light resistant structure and module thereof |
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2012
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102062350A (en) * | 2010-11-18 | 2011-05-18 | 鸿富锦精密工业（深圳）有限公司 | Light distribution device of LED (light-emitting diode) light source |
| CN102401319A (en) * | 2011-11-25 | 2012-04-04 | 东莞市永兴电子科技有限公司 | Light emitting diode (LED) secondary optical lens |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132305A (en) * | 2014-07-04 | 2014-11-05 | 佛山市中山大学研究院 | Condensing lens |
| CN104132305B (en) * | 2014-07-04 | 2017-01-25 | 佛山市中山大学研究院 | Condensing lens |
| CN106051622A (en) * | 2016-04-25 | 2016-10-26 | 惠州市西顿工业发展有限公司 | Small-angle lens and lamp |
| CN108224110A (en) * | 2017-01-25 | 2018-06-29 | 佛山市中山大学研究院 | A kind of method for eliminating lens veiling glare |
| CN110566828A (en) * | 2019-10-11 | 2019-12-13 | 欧普照明股份有限公司 | Light distribution system, light source module comprising same and lamp |
| CN110886986A (en) * | 2019-12-05 | 2020-03-17 | 延锋伟世通电子科技（上海）有限公司 | Double-light-source backlight illumination system |
| CN110886986B (en) * | 2019-12-05 | 2021-08-06 | 延锋伟世通电子科技（上海）有限公司 | Double-light-source backlight illumination system |
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|---|---|
| CN103375767B (en) | 2015-12-16 |
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