CN103378277A - Lens and light-emitting diode packaging structure with same - Google Patents
Lens and light-emitting diode packaging structure with same Download PDFInfo
- Publication number
- CN103378277A CN103378277A CN2012101175767A CN201210117576A CN103378277A CN 103378277 A CN103378277 A CN 103378277A CN 2012101175767 A CN2012101175767 A CN 2012101175767A CN 201210117576 A CN201210117576 A CN 201210117576A CN 103378277 A CN103378277 A CN 103378277A
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- China
- Prior art keywords
- out part
- light
- light out
- lens
- accepting groove
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Abstract
A lens comprises a light-inlet surface and a light-outlet surface. The light-outlet surface comprises a first light-outlet part and a second light-outlet part located at the periphery of the first light-outlet part, wherein the first light-outlet part is a smooth arc surface, and the second light-outlet part is a tubular rough surface. The light-inlet surface comprises a contacting part, a containing groove and an empty containing part, wherein the containing groove is located in the center of the contacting part and concaved towards the side of the light-outlet surface, and the bottom of the containing groove is further concaved towards the side of the light-outlet surface to form the empty containing part. The lens can effectively improve the lateral light-emitting intensity of a light-emitting diode chip. The invention further provides a light-emitting diode packaging structure with the lens.
Description
Technical field
The present invention relates to a kind of lens, relate in particular to a kind of lens that strengthen the bright dipping of light-emitting diode side direction, the invention still further relates to a kind of package structure for LED with this kind lens.
Background technology
Than traditional light emitting source, light-emitting diode (Light Emitting Diode, LED) have the advantages such as lightweight, that volume is little, it is low to pollute, the life-span is long, it is as a kind of novel light emitting source, be applied to more and more in the middle of each field, such as street lamp, traffic lights, signal lamp, shot-light and decorative lamp etc.
Existing package structure for LED generally includes substrate, be positioned at electrode on the substrate, be carried on the substrate and be electrically connected with electrode light-emitting diode chip for backlight unit and the packaging plastic of covering luminousing diode chip on substrate.Yet, because the rising angle of light-emitting diode chip for backlight unit is approximately 120 degree, and light-emitting diode chip for backlight unit go out luminous intensity mainly concentrate exiting surface over against middle section, can not satisfy the specific (special) requirements of side direction bright dipping.
Summary of the invention
In view of this, be necessary to provide a kind of lens of light-emitting diode chip for backlight unit side direction bright dipping and package structure for LED with this kind lens of strengthening.
A kind of lens comprise incidence surface and exiting surface, the second light out part that this exiting surface comprises the first light out part and is positioned at the first light out part periphery, and this first light out part is smooth arcwall face, this second light out part is the tubulose matsurface; This incidence surface comprises contact site, be positioned at contact site central authorities and to the accepting groove of exiting surface one side depression and by this accepting groove bottom further to vacant section that exiting surface one side is recessed to form.
A kind of package structure for LED, comprise substrate, be arranged on the LED crystal particle on the substrate, and be arranged on the substrate and cover is established the lens of LED crystal particle, described lens comprise incidence surface and exiting surface, the second light out part that this exiting surface comprises the first light out part and is positioned at the first light out part periphery, this first light out part is smooth arcwall face, this second light out part is the tubulose matsurface, this incidence surface comprises contact site, the accepting groove that is positioned at contact site central authorities and caves in to exiting surface one side, and by this accepting groove bottom further to vacant section that exiting surface one side is recessed to form, described contact site engages with substrate, and described accepting groove will be arranged in light-emitting diode on the substrate is housed in.
In the time of in being applied to package structure for LED, the light that these lens send LED crystal particle by vacant inner surface reflects and is added to the incidence angle that is incident upon the light on the first light out part, thereby improve the first light out part to the total reflectivity of light with the part light reflection to the second light out part, utilize simultaneously the matsurface of the second light out part to reduce the total reflection probability that is incident to the light on it, and then the side direction light exit dose of Effective Raise light-emitting diode, satisfy the specific (special) requirements of side direction bright dipping.
With reference to the accompanying drawings, the invention will be further described in conjunction with embodiment.
Description of drawings
The structural representation of the lens that Fig. 1 provides for embodiment of the present invention.
The schematic diagram of the package structure for LED that Fig. 2 provides for embodiment of the present invention.
The main element symbol description
| |
10 |
| Exiting |
11 |
| The first light out |
110 |
| The second light out |
112 |
| |
1120 |
| |
12 |
| |
120 |
| Accepting |
122 |
| Vacant |
124 |
| |
1240 |
| Package structure for LED | 20 |
| |
21 |
| |
22 |
Following embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
Embodiment
The lens 10 that embodiment of the present invention provides comprise exiting surface 11 and incidence surface 12.
The second light out part 112 that this exiting surface 11 comprises the first light out part 110 and is positioned at the first light out part 110 peripheries.This first light out part 110 is smooth arcwall face, and this second light out part 112 is the tubulose matsurface.In the present embodiment, be formed with a plurality of grooves 1120 around described the first light out part 110 on this second light out part 112 to consist of described matsurface, this kind matsurface is used for destroying the total reflection condition that is incident to the light on the second light out part 112, to improve the light outgoing efficient of this second light out part 112.This groove can be v-depression or has the groove of other section shapes.In addition, these a plurality of grooves 1120 can be formed on the subregion of the second light out part 112, also can be covered with whole the second light out part 112.For reaching than high light-emitting efficiency, groove described in the present embodiment 1120 is covered with whole the second light out part 112.
This incidence surface 12 comprises contact site 120, be positioned at contact site 120 central authorities and vacant 124 of further being recessed to form to exiting surface 11 1 sides to the accepting groove 122 of exiting surface 11 1 sides depression and by these accepting groove 122 bottoms.Described contact site 120 and the second light out part 112 join, and this contact site 120 is used for contacting with the bearing part of follow-up support of lens 10.Described accepting groove 122 is used for accommodating LED crystal particle.Described vacant 124 light that is used for receiving from LED crystal particle, and the part of the light of directive the first light out part 110 reflected to be added to the incidence angle that is incident upon the light on the first light out part 110, thereby improve the total reflectivity of 110 pairs of light of the first light out part.The light that total reflection occurs at the first light out part 110 will be reflected to the second light out part 112, because the second light out part 112 is matsurface, this matsurface can effectively reduce the total reflection probability that is incident to the light on the second light out part 112, so that via the smoothly outgoing and total reflection phenomenon no longer occurs when being incident to the second light out part 112 of the light of the first light out part 110 reflection, and then the side direction light exit dose of Effective Raise light-emitting diode, satisfy the specific (special) requirements of side direction bright dipping.
In the present embodiment, strengthen preferably side direction and go out effect of light for reaching, described vacant 124 inner surface is set to ellipsoid, and the minor axis of this ellipsoid is positioned on the residing plane, accepting groove 122 bottoms, and the major axis of this ellipsoid is vertical with residing plane, accepting groove 122 bottoms.Under this kind facilities, ellipsoid has longitudinal end than deep camber over against the first light out part 110, thereby the longitudinal end of this ellipsoid can effectively increase via the incidence angle that is incident to the light on the first light out part 110 after the ellipsoid refraction, and then improve the probability that 110 pairs of light of the first light out part carry out total reflection, so that a part originally the light of directive the first light out part 110 can be reflected to the second light out part 112, to promote the amount of light of the second light out part 112.Accordingly, ellipsoid has than the minor axis of small curve to be rectified the second light out part 112, so that originally the incidence angle of light when arriving the second light out part 112 with regard to directive the second light out part 112 is less, thus guarantee the light of directive the second light out part 112 originally can avoid as far as possible total reflection phenomenon generation and smoothly via 112 outgoing of the second light out part.
Described vacant the 124 interface place with accepting groove 122 bottoms forms circular open 1240.Further, for reaching optimum efficiency, also the semi-major axis length L of described ellipsoid can be arranged between 1.5 ~ 2.5 times of described circular open 1240 radius Rs, also be 1.5R＜=L＜=2.5R, this kind situation arranges down, the light of LED crystal particle effectively can be directed at side direction, so that the luminous intensity of side direction bright dipping is 2 ~ 10 times of the forward bright dipping.
See also Fig. 2, the embodiment of the invention also provides a kind of package structure for LED 20 with said lens 10.This package structure for LED 20 comprises substrate 21, is arranged on the LED crystal particle 22 on the substrate 21 and is arranged on also to cover on the substrate 21 and establish the lens 10 of LED crystal particle 22.
Described substrate 21 carrying lens 10, the contact site 120 of described lens 10 engages with substrate 21, and described accepting groove 122 will be arranged in LED crystal particle 22 on the substrate 21 is housed in.
In the present embodiment, the end face of described LED crystal particle 22 flushes with the bottom of accepting groove 122.Thereby, so that LED crystal particle 22 is over against vacant 124 of accepting groove 122 bottoms.
Need to prove that when described groove 1120 was covered with whole the second light out part 112, this groove 1120 can follow respectively first light out part 110, the contact site 120 adjacent with the second light out part 112 to join, to improve the light extraction efficiency of whole the second light out part 112.Among this embodiment about substrate 21 and electrical connection between the LED crystal particle 22 can be that routing is connected, chip package etc.In addition, present embodiment only is used for the matching relationship of explanation lens 10 structures and lens 10 and LED crystal particle 22, and other encapsulating structures about light-emitting diode do not repeat them here.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection range that all should belong to claim of the present invention with distortion.
Claims (10)
1. lens comprise incidence surface and exiting surface, it is characterized in that: the second light out part that this exiting surface comprises the first light out part and is positioned at the first light out part periphery, and this first light out part is smooth arcwall face, this second light out part is the tubulose matsurface; This incidence surface comprises contact site, be positioned at contact site central authorities and to the accepting groove of exiting surface one side depression and by this accepting groove bottom further to vacant section that exiting surface one side is recessed to form.
2. lens as claimed in claim 1 is characterized in that, the inner surface of described vacant section is ellipsoid, and the minor axis of this ellipsoid is positioned on the residing plane, accepting groove bottom, and the major axis of this ellipsoid is vertical with residing plane, accepting groove bottom.
3. lens as claimed in claim 2 is characterized in that, described vacant the interface place with the accepting groove bottom forms circular open.
4. lens as claimed in claim 3 is characterized in that, the semi-major axis length of described ellipsoid is between 1.5 ~ 2.5 times of described circular open radius.
5. lens as claimed in claim 1 is characterized in that, described exiting surface joins via the contact site of the second light out part and incidence surface.
6. lens as claimed in claim 1 is characterized in that, are formed with a plurality of grooves around described the first light out part on described the second light out part, and these a plurality of grooves are covered with whole the second light out part.
7. package structure for LED, comprise substrate, be arranged on the LED crystal particle on the substrate, and be arranged on the substrate and cover is established the lens of LED crystal particle, it is characterized in that: described lens comprise incidence surface and exiting surface, the second light out part that this exiting surface comprises the first light out part and is positioned at the first light out part periphery, this first light out part is smooth arcwall face, this second light out part is the tubulose matsurface, this incidence surface comprises contact site, the accepting groove that is positioned at contact site central authorities and caves in to exiting surface one side, and by this accepting groove bottom further to vacant section that exiting surface one side is recessed to form, described contact site engages with substrate, and described accepting groove will be arranged in light-emitting diode on the substrate is housed in.
8. package structure for LED as claimed in claim 7, it is characterized in that, the end face of described LED crystal particle flushes with the accepting groove bottom, the inner surface of described vacant section is ellipsoid, the minor axis of this ellipsoid is positioned on the residing plane of LED crystal particle end face, and the major axis of this ellipsoid is vertical with the residing plane of LED crystal particle end face.
9. package structure for LED as claimed in claim 8 is characterized in that, described vacant the interface place with accepting groove bottom forms circular open, and the semi-major axis length of described ellipsoid is between 1.5 ~ 2.5 times of described circular open radius.
10. package structure for LED as claimed in claim 7 is characterized in that, is formed with a plurality of grooves around described the first light out part on described the second light out part, and these a plurality of grooves are covered with whole the second light out part.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210117576.7A CN103378277B (en) | 2012-04-20 | 2012-04-20 | Lens and there is the package structure for LED of this kind of lens |
| TW101118802A TWI478401B (en) | 2012-04-20 | 2012-05-25 | Lens and led package having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210117576.7A CN103378277B (en) | 2012-04-20 | 2012-04-20 | Lens and there is the package structure for LED of this kind of lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103378277A true CN103378277A (en) | 2013-10-30 |
| CN103378277B CN103378277B (en) | 2015-11-18 |
Family
ID=49463105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210117576.7A Expired - Fee Related CN103378277B (en) | 2012-04-20 | 2012-04-20 | Lens and there is the package structure for LED of this kind of lens |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103378277B (en) |
| TW (1) | TWI478401B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159059A (en) * | 2015-04-13 | 2016-11-23 | 弘凯光电(深圳)有限公司 | LED encapsulation structure and manufacture method thereof |
| WO2017041624A1 (en) * | 2015-09-11 | 2017-03-16 | 上海三思电子工程有限公司 | Lens and led lamp using application thereof |
| CN106523980A (en) * | 2015-09-11 | 2017-03-22 | 上海三思电子工程有限公司 | Led signal lamp |
| CN107658377A (en) * | 2016-07-26 | 2018-02-02 | 宏齐科技股份有限公司 | Package structure of light emitting diode |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102374202B1 (en) * | 2015-05-26 | 2022-03-14 | 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 | Optical lens, light emitting module and light unit having thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US563836A (en) * | 1896-07-14 | blondel | ||
| TW200923248A (en) * | 2007-10-11 | 2009-06-01 | Kuraray Co | Array of planar light source elements |
| JP2011023204A (en) * | 2009-07-15 | 2011-02-03 | Sharp Corp | Light-emitting device, luminous flux control member, and lighting device having light-emitting device |
| CN102022690A (en) * | 2009-09-11 | 2011-04-20 | 玉晶光电股份有限公司 | Optical lens |
| CN102410490A (en) * | 2010-09-21 | 2012-04-11 | 富士迈半导体精密工业（上海）有限公司 | Lens and light source module |
-
2012
- 2012-04-20 CN CN201210117576.7A patent/CN103378277B/en not_active Expired - Fee Related
- 2012-05-25 TW TW101118802A patent/TWI478401B/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US563836A (en) * | 1896-07-14 | blondel | ||
| TW200923248A (en) * | 2007-10-11 | 2009-06-01 | Kuraray Co | Array of planar light source elements |
| JP2011023204A (en) * | 2009-07-15 | 2011-02-03 | Sharp Corp | Light-emitting device, luminous flux control member, and lighting device having light-emitting device |
| CN102022690A (en) * | 2009-09-11 | 2011-04-20 | 玉晶光电股份有限公司 | Optical lens |
| CN102410490A (en) * | 2010-09-21 | 2012-04-11 | 富士迈半导体精密工业（上海）有限公司 | Lens and light source module |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106159059A (en) * | 2015-04-13 | 2016-11-23 | 弘凯光电(深圳)有限公司 | LED encapsulation structure and manufacture method thereof |
| WO2017041624A1 (en) * | 2015-09-11 | 2017-03-16 | 上海三思电子工程有限公司 | Lens and led lamp using application thereof |
| CN106524079A (en) * | 2015-09-11 | 2017-03-22 | 上海三思电子工程有限公司 | Lens and LED lamp using same |
| CN106523980A (en) * | 2015-09-11 | 2017-03-22 | 上海三思电子工程有限公司 | Led signal lamp |
| CN106523980B (en) * | 2015-09-11 | 2020-09-25 | 上海三思电子工程有限公司 | LED signal lamp |
| CN107658377A (en) * | 2016-07-26 | 2018-02-02 | 宏齐科技股份有限公司 | Package structure of light emitting diode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103378277B (en) | 2015-11-18 |
| TW201345002A (en) | 2013-11-01 |
| TWI478401B (en) | 2015-03-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20151118 Termination date: 20200420 |