CN204141490U - A kind of LED lens of rectangle bright dipping and there is the LED module of these lens - Google Patents
A kind of LED lens of rectangle bright dipping and there is the LED module of these lens Download PDFInfo
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- CN204141490U CN204141490U CN201420436663.3U CN201420436663U CN204141490U CN 204141490 U CN204141490 U CN 204141490U CN 201420436663 U CN201420436663 U CN 201420436663U CN 204141490 U CN204141490 U CN 204141490U
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- lens
- free form
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- bright dipping
- led lens
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Abstract
The utility model relates to a kind of LED lens of rectangle bright dipping and has the LED module of these lens, a kind of LED lens of rectangle bright dipping, it comprises exiting surface, installed surface and incidence surface, it is characterized in that, described exiting surface is the free form surface of axisymmetry, described installed surface is plane, described incidence surface is the free form surface that indent is formed on described installed surface, described incidence surface comprises two free form surfaces, the profile of described two free form surfaces on described installed surface is ellipticity, described two free form surfaces symmetrically link together along transverse direction, the inside cavity that the junction of described two free form surfaces limits in described LED lens to described incidence surface caves in, form the free form surface with peanut shell, the profile of described incidence surface on described installed surface is 8-shaped.The utility model structure is simple, reasonable in design, easy to make.The road lamp light distribution of integrated high-power COB and the road lamp light distribution of low-power light source can be applied in.
Description
Technical field
The utility model relates to a kind of LED lens, particularly relates to a kind of LED lens of rectangle bright dipping and has the LED module of these lens.
Background technology
LED has the plurality of advantages such as volume is little, the life-span is long, electrical efficiency is high, energy-conserving and environment-protective, has become the preferred light source of green illumination.And road traffic is as public illumination field usage quantity and time maximum lighting apparatus, become the primary field that China's Semiconductor Lighting is promoted.Therefore, LED street lamp lighting engineering obtains development at full speed in recent years.
Electric dipole radiation due to most of LED light source is 110 degree to 120 degree, if although directly do not shine on the ground through luminous intensity distribution that scope is broader, the intensity of illumination at edge and the intensity of illumination gap at center excessive, distribute very uneven.
In order to enable street lamp obtain full and uniform illumination in appointed area, need to adopt emergent light to be approximate rectangular LED light-distribution lens.In order to make LED immediately below and the illumination in region between lamp similar, LED also needs design to become uniform rectangle light distribution when luminous intensity distribution designs.Authorization Notice No. be CN 202691901 U, CN 202487663 the Chinese patent of U and CN 202691903U disclose the LED lens that can form rectangle bright dipping.But it is the symmetrical free form surface of peanut shell that the LED lens of these rectangle bright dippings are outer surface, inner surface is the dome-type of axisymmetry or the curved surface of groove.
Utility model content
For the problems referred to above, the utility model provides a kind of LED lens of rectangle bright dipping and has the LED module of these lens.
The utility model discloses a kind of LED lens of rectangle bright dipping, it comprises exiting surface, installed surface and incidence surface, it is characterized in that, described exiting surface is the free form surface of axisymmetry, described installed surface is plane, described incidence surface is the free form surface that indent is formed on described installed surface, described incidence surface comprises two free form surfaces, the profile of described two free form surfaces on described installed surface is ellipticity, described two free form surfaces symmetrically link together along transverse direction, the inside cavity that the junction of described two free form surfaces limits in described LED lens to described incidence surface caves in, form the free form surface with peanut shell, the profile of described incidence surface on described installed surface is 8-shaped.
Preferably implement originating party formula according to one, described exiting surface is the spherical free form surface of symmetrical revolving body.
Preferably implement originating party formula according to one, described incidence surface overlaps perpendicular to the center line of described installed surface with the center line of described exiting surface perpendicular to described installed surface or does not overlap.
Preferably implement originating party formula according to one, the size of the cavity limited in described LED lens by described incidence surface at least can hold a LED chip.
Preferably implement originating party formula according to one, described LED lens are transparent optical grade PC lens, optical grade PMMA lens or optical grade glass lens.
Preferably implement originating party formula according to one, between described exiting surface and described incidence surface, be provided with the first exiting surface, between described exiting surface and described first exiting surface, be provided with the first incidence surface.
Preferably implement originating party formula according to one, described first exiting surface is have the free form surface with described exiting surface same shape, and described first incidence surface is have the free zone curved surface with described incidence surface same shape.
Preferably implement originating party formula according to one, between described first incidence surface and described first exiting surface, be provided with the first optical cross section.
Preferably implement originating party formula according to one, between described exiting surface and described installed surface, be provided with the second optical cross section.
A kind of LED module, it is characterized in that, described LED module has the LED lens of foregoing rectangle bright dipping, and the LED lens of multiple described rectangle bright dipping are that arrayed is fixed on the substrate of described LED module.
The beneficial effects of the utility model are: the outer surface of the utility model LED lens is that axisymmetric free form surface is formed, inner surface is symmetrical peanut shell-shaped, be made up of free form surface equally, the light that LED chip sends is by the refraction of twice free form surface, the rising angle of lens can be made to control more reasonable, hot spot brightness is more even, forms rectangular light spot.Meanwhile, the utility model structure is simple, reasonable in design, easy to make, can be applied in the road lamp light distribution of integrated high-power COB and the road lamp light distribution of low-power light source.Fill up the symmetrical luminous intensity distribution vacancy of only outer surface being carried out to peanut shell-shaped in existing LED street lamp lens.In addition, the face shaping of the lens of the utility model rectangle bright dipping is traditional lens shape, more easily accept by people.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first preferred embodiment of the utility model;
Fig. 2 is the upward view of the first preferred embodiment of the utility model;
Fig. 3 is the forward sectional view of the first preferred embodiment of the utility model;
Fig. 4 is the top view of the first preferred embodiment of the utility model;
Fig. 5 is the side sectional view of the first preferred embodiment of the utility model;
Fig. 6 is that the forward light path of the first preferred embodiment of the utility model moves towards figure;
Fig. 7 is that the side direction light path of the first preferred embodiment of the utility model moves towards figure;
Fig. 8 is the distribution curve flux rectangular plots of the first preferred embodiment of the utility model;
Fig. 9 is the distribution curve flux polar diagram of the first preferred embodiment of the utility model;
Figure 10 is the hot spot figure of the first preferred embodiment of the utility model;
Figure 11 is the structural representation of the utility model the second preferred embodiment;
Figure 12 is the upward view of the utility model the second preferred embodiment;
Figure 13 is the forward sectional view of the utility model the second preferred embodiment;
Figure 14 is the top view of the utility model the second preferred embodiment;
Figure 15 is that the forward light path of the utility model the second preferred embodiment moves towards figure;
Figure 16 is that the side direction light path of the utility model the second preferred embodiment moves towards figure;
Figure 17 is the distribution curve flux rectangular plots of the utility model the second preferred embodiment;
Figure 18 is the distribution curve flux polar diagram of the utility model the second preferred embodiment;
Figure 19 is the hot spot figure of the utility model the second preferred embodiment;
Figure 20 is the structural representation of the third preferred embodiment of the utility model.
Reference numerals list
100: the LED lens of rectangle bright dipping
101: exiting surface 102: installed surface 103: incidence surface
104: the first exiting surface 105: the first incidence surface 106: the first optical cross sections
107: the second optical cross sections
301: free form surface 302: free form surface
Detailed description of the invention
The utility model is illustrated below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of the first preferred embodiment of the utility model.Fig. 1 shows a kind of LED lens 100 of rectangle bright dipping, and it comprises exiting surface 101, installed surface 102 and incidence surface 103.Exiting surface 101 is the free form surface of axisymmetry.Installed surface 102 is plane.Incidence surface 103 is the free form surface that indent is formed on installed surface 102.
As shown in Fig. 2, Fig. 3, Fig. 5, incidence surface 103 comprises two free form surfaces 301,302.The profile of two free form surfaces 301,302 on installed surface 102 is ellipticity.Two free form surfaces 301,302 symmetrically link together along transverse direction.The inside cavity that the junction of two free form surfaces 301,302 limits in LED lens to incidence surface 103 caves in, and forms the free form surface with peanut shell.The profile of incidence surface 103 on installed surface 102 is 8-shaped.
As Fig. 3, Fig. 4.Shown in Fig. 5, exiting surface 101 is the spherical free form surface of symmetrical revolving body.
Incidence surface 103 overlaps with the center line of exiting surface 101 perpendicular to installed surface 102 perpendicular to the center line of installed surface 102.
The size of the cavity limited in LED lens by incidence surface 103 at least can hold a LED chip.
LED lens 100 can be transparent optical grade PC lens, optical grade PMMA lens or optical grade glass lens.
A specific embodiment of the first preferred embodiment of the utility model is as follows:
The LED lens 100 of a rectangle bright dipping, the largest outer diameter of its exiting surface 101 is 23mm, is highly 10.0mm; Its incidence surface 103 formed in lens one long be 12.98mm, wide is 4.44mm, and minimum altitude is the inner chamber of 2.24mm; Surrounding a light-emitting area diameter in inner chamber is the LED chip of 4mm; The center line perpendicular to installed surface 102 of LED chip overlaps with the center line of exiting surface 101 perpendicular to installed surface 102.
As shown in Figure 6, Figure 7, the light sent from LED chip, through symmetrical incidence surface 103, reflects, makes light begin to take shape distributed rectangular; Light from incidence surface 103 out.Through exiting surface 101, be polymerized further, the rising angle of whole lens further controlled, is finally transmitted on receiving plane, form the hot spot of rectangle.
As shown in Fig. 8, Fig. 9, Figure 10, the symmetrical rectangular hot spot that luminous intensity distribution result is 135 ° X80 ° can be obtained.
Figure 11 shows the second of the LED lens of the utility model rectangle bright dipping preferred embodiment.
The utility model the second is preferred embodiment compared with the first preferred embodiment, and its difference is, incidence surface 103 does not overlap with the center line of exiting surface 101 perpendicular to installed surface 102 perpendicular to the center line of installed surface 102.
A specific embodiment of the utility model the second preferred embodiment is as follows:
The LED lens 100 of a rectangle bright dipping, the largest outer diameter of its exiting surface 101 is 23mm, is highly 10.0mm; Its incidence surface 103 formed in lens one long be 12.98mm, wide is 4.44mm, and minimum altitude is the inner chamber of 2.24mm; Surrounding a light-emitting area diameter in inner chamber is the LED chip of 4mm; Incidence surface 103 does not overlap with the center line of exiting surface 101 perpendicular to installed surface 102 perpendicular to the center line of installed surface 102, and the distance between them is 2.5mm; And exiting surface 101 does not also overlap with the center line of LED chip perpendicular to the center line of installed surface 102, the distance between them is 2.6mm.
As shown in Figure 15, Figure 16, the light sent from LED chip, through symmetrical incidence surface 103, reflects, makes light begin to take shape distributed rectangular; Light from incidence surface 103 out.Through exiting surface 101, be polymerized further, the rising angle of whole lens further controlled, is finally transmitted on receiving plane, form the hot spot of rectangle.
As shown in Figure 17, Figure 18, Figure 19, it is 135 ° of X60 ° that the utility model the second preferred embodiment can obtain luminous intensity distribution result, and polarizing angle is the polarisation rectangular light spot of 10 °.
In addition, as shown in figure 20, can the first exiting surface 104 be set between exiting surface 101 and incidence surface 103, the first incidence surface 105 is set between exiting surface 101 and the first exiting surface 104.First exiting surface 104 is for having the free form surface with exiting surface 101 same shape, and the first incidence surface 105 is for having the free zone curved surface with incidence surface 103 same shape.Different rectangular light spots can be formed further through the refraction again of the first incidence surface 105 and exiting surface 101 like this from the first exiting surface 104 rectangular shaped light source out.
The first optical cross section 106 is provided with between first incidence surface 105 and the first exiting surface 104.The second optical cross section 107 is provided with between exiting surface 101 and installed surface 102.Do like this is utilize rim ray principle (rim ray from light source to object edge maps the design that can be applied to non-imaged device) to form total reflection prism at the edge of lens, for collecting the rim ray in certain angle that LED chip sends, if this part rim ray without luminous intensity distribution directly injection can cause dazzle, this section of light design is carried out at rims of the lens, then dazzle can be eliminated, and because this part rim ray is reflected back toward the luminous intensity distribution region of lens, so the utilization rate of LED light source light can also be improved like this.
The LED lens of the rectangle bright dipping of structure shown in Figure 20 can be made by the mode of assembling again after making respectively, namely first the lens between exiting surface 101 and the first incidence surface 105 and the lens between the first exiting surface 104 and incidence surface 103 are carried out respectively, again by two parts lens combination together, the making of the LED lens of the rectangle bright dipping of structure shown in Figure 20 is completed.
The LED lens 100 of the utility model rectangle bright dipping can be fixed on substrate in arrayed, form LED module.This LED module can realize the rectangle bright dipping of LED module.
LED lens 100 due to rectangle bright dipping can realize the rectangle bright dipping of single LEDs light source, therefore the single LEDs light source only needing these to have rectangle light extracting LED lens 100 is lined up according to identical direction and is assemblied on a flat substrate, can form the LED module of rectangle bright dipping.Because the LED lens 100 of rectangle bright dipping are all according to a direction arrangement, so the far field angle distribution of the light spot shape of the LED module of rectangle bright dipping and light intensity and the LED light source of single rectangle bright dipping is identical, the luminous intensity values uniquely unlike brightness value and distribution curve flux has taken advantage of a multiple according to the quantity of LED.And the spacing of lens arrangement and spread geometry do not affect luminous intensity distribution.
It should be noted that; above-mentioned specific embodiment is exemplary; under above-mentioned instruction of the present utility model, those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improve or distortion drops in protection domain of the present utility model.It will be understood by those skilled in the art that specific descriptions are above to explain the purpose of this utility model, not for limiting the utility model.Protection domain of the present utility model is by claim and equivalents thereof.
Claims (10)
1. the LED lens (100) of a rectangle bright dipping, it comprises exiting surface (101), installed surface (102) and incidence surface (103),
It is characterized in that,
The free form surface that described exiting surface (101) is axisymmetry, described installed surface (102) is plane, and described incidence surface (103) is the free form surface formed in the upper indent of described installed surface (102),
Described incidence surface (103) comprises two free form surfaces (301, 302), described two free form surfaces (301, 302) profile on described installed surface (102) is ellipticity, described two free form surfaces (301, 302) symmetrically link together along transverse direction, described two free form surfaces (301, 302) the inside cavity depression that junction limits in described LED lens to described incidence surface (103), form the free form surface with peanut shell, the profile of described incidence surface (103) on described installed surface (102) is 8-shaped.
2. the LED lens (100) of rectangle bright dipping according to claim 1, is characterized in that, the spherical free form surface that described exiting surface (101) is symmetrical revolving body.
3. the LED lens (100) of rectangle bright dipping according to claim 2, it is characterized in that, described incidence surface (103) overlaps perpendicular to the center line of described installed surface (102) with the center line of described exiting surface (101) perpendicular to described installed surface (102) or does not overlap.
4. the LED lens (100) of rectangle bright dipping according to claim 3, is characterized in that, the size of the cavity limited in described LED lens by described incidence surface (103) at least can hold a LED chip.
5. the LED lens (100) of rectangle bright dipping according to claim 4, is characterized in that, described LED lens (100) are transparent optical grade PC lens, optical grade PMMA lens or optical grade glass lens.
6. the LED lens (100) of rectangle bright dipping according to claim 5, it is characterized in that, between described exiting surface (101) and described incidence surface (103), be provided with the first exiting surface (104), between described exiting surface (101) and described first exiting surface (104), be provided with the first incidence surface (105).
7. the LED lens (100) of rectangle bright dipping according to claim 6, is characterized in that, described first exiting surface (104) for having the free form surface with described exiting surface (101) same shape,
Described first incidence surface (105) is for having the free zone curved surface with described incidence surface (103) same shape.
8. the LED lens (100) of rectangle bright dipping according to claim 7, is characterized in that, are provided with the first optical cross section (106) between described first incidence surface (105) and described first exiting surface (104).
9. the LED lens (100) of rectangle bright dipping according to claim 8, is characterized in that, are provided with the second optical cross section (107) between described exiting surface (101) and described installed surface (102).
10. a LED module, is characterized in that, described LED module has the LED lens (100) of the rectangle bright dipping as described in one of claim 1 to 9,
The LED lens (100) of multiple described rectangle bright dipping are fixed in arrayed on the substrate of described LED module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436663.3U CN204141490U (en) | 2014-08-04 | 2014-08-04 | A kind of LED lens of rectangle bright dipping and there is the LED module of these lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436663.3U CN204141490U (en) | 2014-08-04 | 2014-08-04 | A kind of LED lens of rectangle bright dipping and there is the LED module of these lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204141490U true CN204141490U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420436663.3U Expired - Fee Related CN204141490U (en) | 2014-08-04 | 2014-08-04 | A kind of LED lens of rectangle bright dipping and there is the LED module of these lens |
Country Status (1)
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| CN (1) | CN204141490U (en) |
Cited By (11)
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| CN105156990A (en) * | 2015-06-17 | 2015-12-16 | 欧普照明股份有限公司 | Unit and module for LED street lamp lens, and street lamp with LED street lamp lens module |
| CN105485559A (en) * | 2015-12-21 | 2016-04-13 | 欧普照明股份有限公司 | Light source module and lighting device |
| CN107664279A (en) * | 2017-09-12 | 2018-02-06 | 江苏大学 | A kind of LED flat lamp lens and LED light source |
| CN108087839A (en) * | 2017-12-05 | 2018-05-29 | 厦门佰明光电股份有限公司 | Vehicle side-marker lamp and its lens |
| CN108386818A (en) * | 2018-04-28 | 2018-08-10 | 苏州欧普照明有限公司 | Lens, illuminating module and panel light |
| TWI639798B (en) * | 2017-09-28 | 2018-11-01 | 周聰明 | LED light source guiding device |
| CN108730841A (en) * | 2018-03-06 | 2018-11-02 | 达运精密工业股份有限公司 | light source device and display device using the same |
| CN109185736A (en) * | 2018-09-17 | 2019-01-11 | 欧普照明股份有限公司 | Light distribution element, light source module group, light source assembly and illuminator |
| CN109611753A (en) * | 2019-01-08 | 2019-04-12 | 济南坤锐光学科技有限公司 | A kind of lighting apparatus |
| JP2019531514A (en) * | 2016-11-23 | 2019-10-31 | 深▲せん▼明智超精密科技有限公司Ｓｈｅｎｚｈｅｎ Ｍｉｎｇｚｈｉ Ｕｌｔｒａ Ｐｒｅｃｉｓｉｏｎ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．，Ｌｔｄ． | Ellipsoidal wide-angle backlight lens |
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- 2014-08-04 CN CN201420436663.3U patent/CN204141490U/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105156990A (en) * | 2015-06-17 | 2015-12-16 | 欧普照明股份有限公司 | Unit and module for LED street lamp lens, and street lamp with LED street lamp lens module |
| CN105156990B (en) * | 2015-06-17 | 2021-09-21 | 欧普照明股份有限公司 | LED street lamp lens unit, LED street lamp lens module and street lamp with LED street lamp lens module |
| CN105485559A (en) * | 2015-12-21 | 2016-04-13 | 欧普照明股份有限公司 | Light source module and lighting device |
| JP2019531514A (en) * | 2016-11-23 | 2019-10-31 | 深▲せん▼明智超精密科技有限公司Ｓｈｅｎｚｈｅｎ Ｍｉｎｇｚｈｉ Ｕｌｔｒａ Ｐｒｅｃｉｓｉｏｎ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．，Ｌｔｄ． | Ellipsoidal wide-angle backlight lens |
| CN107664279A (en) * | 2017-09-12 | 2018-02-06 | 江苏大学 | A kind of LED flat lamp lens and LED light source |
| CN107664279B (en) * | 2017-09-12 | 2020-07-31 | 江苏大学 | L ED flat lamp lens and L ED light source |
| TWI639798B (en) * | 2017-09-28 | 2018-11-01 | 周聰明 | LED light source guiding device |
| CN108087839A (en) * | 2017-12-05 | 2018-05-29 | 厦门佰明光电股份有限公司 | Vehicle side-marker lamp and its lens |
| CN108730841A (en) * | 2018-03-06 | 2018-11-02 | 达运精密工业股份有限公司 | light source device and display device using the same |
| CN108730841B (en) * | 2018-03-06 | 2021-01-15 | 达运精密工业股份有限公司 | Light source device and display device using the same |
| CN108386818A (en) * | 2018-04-28 | 2018-08-10 | 苏州欧普照明有限公司 | Lens, illuminating module and panel light |
| CN109185736A (en) * | 2018-09-17 | 2019-01-11 | 欧普照明股份有限公司 | Light distribution element, light source module group, light source assembly and illuminator |
| CN109611753A (en) * | 2019-01-08 | 2019-04-12 | 济南坤锐光学科技有限公司 | A kind of lighting apparatus |
| CN112984415A (en) * | 2021-02-25 | 2021-06-18 | 江苏大学 | LED lamp polarizing lens structure and LED warehouse shelf lamp |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20170804 |
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| CF01 | Termination of patent right due to non-payment of annual fee |