CN203595076U - Lens and lamp with same - Google Patents
Lens and lamp with same Download PDFInfo
- Publication number
- CN203595076U CN203595076U CN201320822246.8U CN201320822246U CN203595076U CN 203595076 U CN203595076 U CN 203595076U CN 201320822246 U CN201320822246 U CN 201320822246U CN 203595076 U CN203595076 U CN 203595076U
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- lens
- incidence
- focus
- exit facet
- side direction
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Abstract
The utility model provides a lens. The lens extends in the longitudinal direction and is provided with a groove containing a light source, and the groove extends in the longitudinal direction. The inner wall surface of the groove comprises a normal incidence surface, a first lateral incidence surface and a second lateral incidence surface. The lens is provided with a first reflection surface, a second reflection surface and an exit surface, wherein the first reflection surface and the second reflection surface are arranged oppositely. The exit surface is a combination of a convex surface and a plane or a combination of a concave surface and the plane. A part of light is reflected by the first reflection surface after entering the first lateral incidence surface and then exits from the exit surface, another part of the light is reflected by the second reflection surface after entering the second lateral incidence surface and then exits from the exit surface, and another part of the light exits from the normal incidence surface to the exit surface.
Description
Technical field
The utility model relates to a kind of lens and has the LED light fixture of this lens.
Background technology
Because LED light fixture has the features such as energy-conservation, light efficiency is high, rich color, life-span are long, be subject in recent years extensive high praise.But in some special application scenarios, the bright dipping of environmental requirement LED is special light beam, such as some needs focused beam, for obtaining such focused beam, general manufacturing process is to configure custom-designed prefocus cup for the light-emitting window of each LED lamp pearl.A prefocus cup of each lamp pearl configuration, causes manufacturing process too numerous and diverse, and the structure of LED light fixture is also relatively complicated.
How, in obtaining special light beam, simplify the assembling of LED light fixture, become the problem of people in the industry's thinking.
Utility model content
In order to make in having good optical effect LED lamp assembled more easy, the utility model provides a kind of lens, and described lens extend along longitudinally; Described lens are provided with the groove that holds light source, and described groove extends along longitudinally, and the internal face of described groove comprises forward entrance face, the first side direction plane of incidence and the second side direction plane of incidence; Described lens have the first reflecting surface and the second reflecting surface that are oppositely arranged; Described lens have exit facet, and exit facet is the combination of convex surface and plane, or are the combination of concave surface and plane; Wherein, part light is reflected by described the first reflecting surface after entering the described first side direction plane of incidence, then penetrates by described exit facet; Part light is reflected by described the second reflecting surface after entering the described second side direction plane of incidence, then penetrates by described exit facet; Part light penetrates towards described exit facet via described forward entrance.
As preferably, described lens are plastic material, described lens the first reflecting surface and described the second reflecting surface are parabola, the described first side direction plane of incidence and the described second side direction plane of incidence are plane, the described first side direction plane of incidence and the described second side direction plane of incidence are parallel to each other, and the planar section of described exit facet is vertical with the described first side direction plane of incidence, the described second side direction plane of incidence.
As preferably, the focus that described the first reflecting surface and the described first side direction plane of incidence form is the first focus, the focus that described the second reflecting surface and the described second side direction plane of incidence form is the second focus, focus the 3rd focus that the convex portions of described forward entrance face and described exit facet or concave part form, the first focus, the second focus and the 3rd focus distance are between any two less than or equal to 20mm.
As preferably, described exit facet is two side planes, and centre is convex surface or concave surface.
As preferably, the convex surface position of described exit facet or concave part are corresponding to forward entrance face, and part light is reflected by described the first reflecting surface after entering the described first side direction plane of incidence, then penetrate by the plane position of described exit facet; Part light is reflected by described the second reflecting surface after entering the described second side direction plane of incidence, then penetrates by the plane position of described exit facet; Part light penetrates towards convex surface position or the concave surface position of described exit facet via described forward entrance.
As preferably, described exit facet is provided with some asperities of extending along longitudinally.
As preferably, described forward entrance face is the one among concave surface, convex surface or plane.
As preferably, the length of described lens is more than or equal to 150mm, and the width of described forward entrance face is between 2～80mm.
As preferably, stretching in the projection of direction perpendicular to described lens edge, described forward entrance identity distance is the first near point from the nearest point of described LED light source, and the distance between the first focus, the second focus and the 3rd focus and described the first anomalistic distance is all between 2～80mm.
The utility model also provides a kind of LED light fixture, has lens, circuit substrate and LED light source, and LED light source is installed on circuit substrate and is positioned among described groove, and described lens extend along longitudinally; Described lens are provided with the groove that holds light source, and described groove extends along longitudinally, and the internal face of described groove comprises forward entrance face, the first side direction plane of incidence and the second side direction plane of incidence; Described lens have the first reflecting surface and the second reflecting surface that are oppositely arranged; Described lens have exit facet, and exit facet is the combination of convex surface and plane or the combination of concave surface and plane; Wherein, part light is reflected by described the first reflecting surface after entering the described first side direction plane of incidence, then penetrates by described exit facet; Part light is reflected by described the second reflecting surface after entering the described second side direction plane of incidence, then penetrates by described exit facet; Part light penetrates towards described exit facet via described forward entrance.
LED light fixture of the present utility model has adopted the lens that extend along longitudinally, and lens arrange the groove that extend, that hold LED light source along longitudinally, like this, multiple LED light sources can share lens, when reaching the optical effect of expectation, be conducive to simplify assembling, reduce costs.
Accompanying drawing explanation
Fig. 1 is the lensed LED light fixture of the tool of the utility model the first embodiment, wherein, Fig. 1 (a) is the assembly drawing of LED light fixture, the schematic diagram of the cross section of the lens that Fig. 1 (b) is, the stereogram of another angle that Fig. 1 (c) is lens;
Fig. 2 is the stereogram of the lens of the utility model the second embodiment;
Fig. 3 is the lens of the utility model the 3rd embodiment, wherein, and the stereogram that Fig. 3 (a) is lens, the cross sectional representation that Fig. 3 (b) is lens;
Fig. 4 is the lens of the utility model the 4th embodiment, wherein, and the stereogram that Fig. 4 (a) is lens, the cross sectional representation that Fig. 4 (b) is lens;
Fig. 5 is the lens of the utility model the 5th embodiment, wherein, and the stereogram that Fig. 5 (a) is lens, the cross sectional representation that Fig. 5 (b) is lens;
Fig. 6 is the lens of the utility model the 6th embodiment, wherein, and the stereogram that Fig. 6 (a) is lens, the cross sectional representation that Fig. 6 (b) is lens;
Fig. 7 is the lens of the utility model the 7th embodiment, wherein, and the stereogram that Fig. 7 (a) is lens, the cross sectional representation that Fig. 7 (b) is lens.
Drawing reference numeral explanation:
Exit facet 31Aa, 31Ab, 31Ac, 31Ba, 31Bb, 31Bc, 31Ca, 31Cb, 31Cc, 31Da, 31Db, 31Dc, 31Ea, 31Eb, 31Ec, 31Fa, 31Fb, 31Fc, 31Ga, 31Gb, 31Gc;
The first reflecting surface 32; The second reflecting surface 33;
The first side direction plane of incidence 35; The second side direction plane of incidence 36;
The 3rd focus C; The first near point O.
The specific embodiment
Set forth the structure of the lensed LED light fixture of tool of the present utility model below in conjunction with specific embodiment.Among each embodiment, the noun of locality used is all take the orientation shown in Fig. 1 drawing as benchmark below, and therefore, when the placing direction change of the object among other drawings, orientation is corresponding changing also.
Please refer to shown in Fig. 1 (a), the LED light source 20(that LED light fixture comprises circuit substrate 10, be fixed on circuit substrate 10 is LED lamp pearl) and lens 30, wherein, LED light source 20 is sequentially arranged in a straight line on circuit substrate 10, and lens have covered LED light source 20.LED light fixture also has shell (not shown), and circuit substrate 10 and lens 30 are all fixed on shell.
Please refer to shown in Fig. 1 (b) and Fig. 1 (c), lens 30 are plastic material, are strip, and the bearing of trend of lens is defined as length direction (longitudinal), and the length L of lens 30 is more than or equal to 150mm.The bottom of lens 30 is arranged with groove, and groove also extends along longitudinally, and groove is used for placing LED light source 20.
Please refer to shown in Fig. 1 (b), from the cross section perpendicular to length direction, lens 30 have the exit facet being positioned at above, are positioned at the first reflecting surface 32 and second reflecting surface 33 of both sides.The internal face of groove is divided into three parts, be respectively forward entrance face 34A, with the corresponding first side direction plane of incidence 35 of the first reflecting surface 32, with the corresponding second side direction plane of incidence 36 of the second reflecting surface 33, the first side direction plane of incidence 35 and the second side direction plane of incidence 36 are plane, and are parallel to each other.
Exit facet is to comprise planar section 31Aa and 31Ac, is opposite planar part (31Aa, 31Ac) convex surface 31Ab protruding upward between planar section 31Aa and 31Ac, and forward entrance face 34A is the convex surface that planar section (31Aa, 31Ac) protrudes downwards.The first side direction plane of incidence 35 and the second side direction plane of incidence 36 are perpendicular to planar section 31Aa and the 31Ac of exit facet.
Defining the focus that the first reflecting surface 32 and the first side direction plane of incidence 35 form is the first focus A, and the focus that definition the second reflecting surface 33 and the second side direction plane of incidence 36 form is the second focus B; The focus that the mid portion (being convex surface 31Ab among the present embodiment) of definition forward entrance face 34a and exit facet forms is the 3rd focus C.
Please refer to shown in Fig. 1 (b) and Fig. 1 (c), the width W 1 of forward entrance face 34a between 2～80mm, the first focus A, the second focus B and the 3rd focus C distance be between any two less than or etc. 20mm.The scope definition that the first focus A, the second focus B and the 3rd focus C form is burnt post, and LED light source 20 is arranged at the ejaculation that is beneficial to light within the scope of burnt post.Among other embodiment, the first focus A, the second focus B have omitted sign on drawing below.
The first reflecting surface 32 and the second reflecting surface 33 can be symmetrical arranged, and also can asymmetricly arrange.Among the present embodiment, the first reflecting surface 32 and the second reflecting surface 33 are symmetrical arranged, and the first reflecting surface 32 and the second reflecting surface 33 are same parabolical part.Please refer to shown in Fig. 1 (b), the nearest point of the described forward entrance face 34a described LED light source 10 of distance is the first near point O, and the distance H 1 between the first focus A, the second focus B, the 3rd focus C and described the first near point O distance is all between 2～80mm.
Embodiment 2
Please refer to shown in Fig. 2, for the cross sectional representation of the lens of second embodiment of the present utility model, being different from the first embodiment is, the planar section 31Bc of exit facet is provided with some asperities 37 of extending along longitudinally, the width of asperities 37 and the degree of depth are all smaller, do not affect the overall pattern of exit facet, and the planar section 31Bc entirety of exit facet is still plane, like this, the refraction being beneficial to light that is provided with of asperities 37 is scattered.Should be understood that, asperities 37 can be covered with convex portions or the concave part of whole exit facet, also can be distributed in the planar section of exit facet.
Embodiment 3
Please refer to shown in Fig. 3 (a) and Fig. 3 (b), Fig. 3 (b) is the cross sectional representation of the lens of the 3rd embodiment of the present utility model, being different from the first embodiment is, the planar section (31Ca, 31Cc) of the relative exit facet of forward entrance face 34C is recessed, exit facet is to comprise planar section 31Ca and 31Cc, is the recessed concave surface 31Cb of planar section (31Ca, 31Cc) of relative exit facet between planar section 31Ca and 31Cc.
Embodiment 4
Please refer to shown in Fig. 4 (a) and Fig. 4 (b), Fig. 4 (b) is the cross sectional representation of the lens of the 4th embodiment of the present utility model, being different from the first embodiment is, forward entrance face 34D is plane, exit facet is to comprise planar section 31Da and 31Dc, is planar section (31Ca, 31Cc) the convex surface 31Db protruding upward of relative exit facet between planar section 31Da and 31Dc.
Embodiment 5
Please refer to shown in Fig. 5 (a) and Fig. 5 (b), Fig. 5 (b) is the cross sectional representation of the lens of the 5th embodiment of the present utility model, being different from the first embodiment is, forward entrance face 34E is plane, exit facet is to comprise planar section 31 Ea and 31Ec, is the recessed concave surface 31Eb of planar section (31Ca, 31Cc) of relative exit facet between planar section 31Ea and 31Ec.
Embodiment 6
Please refer to shown in Fig. 6 (a) and Fig. 6 (b), Fig. 6 (b) is the cross sectional representation of the lens of the 6th embodiment of the present utility model, being different from the first embodiment is, the planar section (31Ca, 31Cc) that forward entrance face 34F is relative exit facet protrudes downwards, exit facet is to comprise planar section 31Fa and 31Fc, is the recessed concave surface 31Fb of planar section (31Ca, 31Cc) of relative exit facet between planar section 31Fa and 31Fc.
Embodiment 7
Please refer to shown in Fig. 7 (a) and Fig. 7 (b), Fig. 7 (b) is the cross sectional representation of the lens of the 7th embodiment of the present utility model, being different from the first embodiment is, the recessed concave surface of planar section (31Ca, 31Cc) that forward entrance face 34G is relative exit facet, exit facet is to comprise planar section 31Ga and 31Gc, is also planar section (31Ca, 31Cc) the convex surface 31Gb protruding upward of relative exit facet between planar section 31Ga and 31Gc.
The lensed LED light fixture of tool of the present utility model, has the following advantages:
(1) lens adopt plastic material, are conducive to moulding, reduce production costs, and lightweight;
(2) lens adopt bar shaped, make multiple LED light sources that are sequentially arranged in a straight line without configuring one by one prefocus cup, and multiple LED light source common lens, are very easy to installation, have simplified installation procedure, are conducive to reduce costs;
(3) LED light source is arranged within the scope of burnt post, can light be propagated with optimum incident angle as far as possible, and the embodiment of different lens just has different light efficiencies, meets different use occasions;
(4) first reflectings surface and the second reflecting surface are parabola, be beneficial to LED light source reflection;
(5) present with respect to LED light source the light fixture that matrix form is arranged, arranging of lens can also, for mutually side by side, to reach the effect of simplified structure, and be conducive to the reinforcement of optical effect;
(6) length L of lens is more than or equal to 150mm, the width W 1 of forward entrance face is 2～80mm, distance H 1 between the first focus A, the second focus B and the 3rd focus C and the first anomalistic distance is 2～80mm, by the setting of parameter, make the radiation response of LED light source better, light shape is good;
(7) in the time that exit facet is plane, all smaller asperities of some width and the degree of depth are set, do not affect overall pattern, like this, be conducive to the refraction of light to be scattered;
(8) exit facet is the combination of convex surface and plane, or the combination of concave surface and plane, and corresponding the first reflecting surface of planar section and the second reflecting surface, convex portions or concave part are corresponding to forward entrance face, like this, combination, can obtain good optical effect flexibly.
Should be understood that, in addition chamfering of junction between all and face, or to increase or reduce material at some face be the common technology means of this area.The lensed LED light fixture of tool of the present utility model, is particularly useful for wall lamp, Projecting Lamp, floodlight, street lamp etc.
The above; it is only preferred embodiment of the present utility model; those familiar with ordinary skill in the art still may be based on this creation teaching and announcement; make all replacement and modifications that does not deviate from this creation spirit; the protection domain of this creation is not limited to the content that embodiment discloses; and should comprise various replacement and the modifications that do not deviate from this creation, the claims that are present patent application are advocated.
Claims (10)
1. lens, is characterized in that, described lens extend along longitudinally; Described lens are provided with the groove that holds light source, and described groove extends along longitudinally, and the internal face of described groove comprises forward entrance face, the first side direction plane of incidence and the second side direction plane of incidence; Described lens have the first reflecting surface and the second reflecting surface that are oppositely arranged; Described lens have exit facet, and exit facet is the combination of convex surface and plane, or are the combination of concave surface and plane; Wherein, part light is reflected by described the first reflecting surface after entering the described first side direction plane of incidence, then penetrates by described exit facet; Part light is reflected by described the second reflecting surface after entering the described second side direction plane of incidence, then penetrates by described exit facet; Part light penetrates towards described exit facet via described forward entrance.
2. lens according to claim 1, it is characterized in that, described lens are plastic material, described lens the first reflecting surface and described the second reflecting surface are parabola, the described first side direction plane of incidence and the described second side direction plane of incidence are plane, the described first side direction plane of incidence and the described second side direction plane of incidence are parallel to each other, and the planar section of described exit facet is vertical with the described first side direction plane of incidence, the described second side direction plane of incidence.
3. according to the arbitrary described lens of claim 2, it is characterized in that, the focus that described the first reflecting surface and the described first side direction plane of incidence form is the first focus, the focus that described the second reflecting surface and the described second side direction plane of incidence form is the second focus, the focus that the convex portions of described forward entrance face and described exit facet or concave part form is the 3rd focus, and the first focus, the second focus and the 3rd focus distance are between any two less than or equal to 20mm.
4. lens according to claim 1, is characterized in that, described exit facet is two side planes, and centre is convex surface or concave surface.
5. lens according to claim 4, it is characterized in that, the convex surface position of described exit facet or concave part are corresponding to forward entrance face, and part light is reflected by described the first reflecting surface after entering the described first side direction plane of incidence, then penetrate by the plane position of described exit facet; Part light is reflected by described the second reflecting surface after entering the described second side direction plane of incidence, then penetrates by the plane position of described exit facet; Part light penetrates towards convex surface position or the concave surface position of described exit facet via described forward entrance.
6. lens according to claim 1, is characterized in that, described exit facet is provided with some asperities of extending along longitudinally.
7. lens according to claim 1, is characterized in that, described forward entrance face is the one among concave surface, convex surface or plane.
8. lens according to claim 1, is characterized in that, the length of described lens is more than or equal to 150mm, and the width of described forward entrance face is between 2～80mm.
9. lens according to claim 1, it is characterized in that, stretching in the projection of direction perpendicular to described lens edge, described forward entrance identity distance is the first near point from the nearest point of LED light source, and the distance between the first focus, the second focus and the 3rd focus and described the first anomalistic distance is all between 2～80mm.
10. a LED light fixture, is characterized in that, has the arbitrary described lens of claim 1 to 9, also has circuit substrate and LED light source, and LED light source is installed on circuit substrate and is positioned among described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320822246.8U CN203595076U (en) | 2013-10-29 | 2013-12-12 | Lens and lamp with same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320674292.8 | 2013-10-29 | ||
| CN201320674292 | 2013-10-29 | ||
| CN201320822246.8U CN203595076U (en) | 2013-10-29 | 2013-12-12 | Lens and lamp with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203595076U true CN203595076U (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320822246.8U Expired - Fee Related CN203595076U (en) | 2013-10-29 | 2013-12-12 | Lens and lamp with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203595076U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152051A (en) * | 2016-07-29 | 2016-11-23 | 宁波永新光学股份有限公司 | Lens and the method for designing of these lens for microscope LED light device |
| CN107942581A (en) * | 2017-11-20 | 2018-04-20 | 四川长虹电器股份有限公司 | A kind of down straight aphototropism mode set structure |
| CN114719226A (en) * | 2022-04-28 | 2022-07-08 | 深圳市电明科技股份有限公司 | Lens strip, grading lens, bar lamp and road lighting device |
-
2013
- 2013-12-12 CN CN201320822246.8U patent/CN203595076U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106152051A (en) * | 2016-07-29 | 2016-11-23 | 宁波永新光学股份有限公司 | Lens and the method for designing of these lens for microscope LED light device |
| CN107942581A (en) * | 2017-11-20 | 2018-04-20 | 四川长虹电器股份有限公司 | A kind of down straight aphototropism mode set structure |
| CN107942581B (en) * | 2017-11-20 | 2021-03-16 | 四川长虹电器股份有限公司 | Direct type backlight module structure |
| CN114719226A (en) * | 2022-04-28 | 2022-07-08 | 深圳市电明科技股份有限公司 | Lens strip, grading lens, bar lamp and road lighting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20171212 |