CN207750936U - Led lens and led lamp - Google Patents
Led lens and led lamp Download PDFInfo
- Publication number
- CN207750936U CN207750936U CN201721645127.4U CN201721645127U CN207750936U CN 207750936 U CN207750936 U CN 207750936U CN 201721645127 U CN201721645127 U CN 201721645127U CN 207750936 U CN207750936 U CN 207750936U
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- China
- Prior art keywords
- led
- face
- lens
- light
- exit facet
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- Expired - Fee Related
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- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000009738 saturating Methods 0.000 claims 1
- 238000003384 imaging method Methods 0.000 abstract description 6
- 239000000243 solution Substances 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
A kind of LED lens of the utility model offer and LED lamp, wherein, LED lens include lens body, the top end face of lens body is exit facet, the exit facet includes the annular step tread for being located at the pearl face in the middle part of exit facet and the multistage shape around exit facet setting, and LED lamp includes LED light source and covers at above-mentioned LED lens outside LED light source.The utility model embodiment in the middle part of exit facet by will be set as pearl face, light is uniformly mixed, and control light direction, make hot spot brightness and evenness, angle smaller, the annular step tread of multistage shape is set around pearl face again, after fully reflecting surface total reflection of the light that LED light source is sent out by LED lens, angle larger light will produce multiple refraction when passing through annular step tread, the light of wide-angle is set to disperse, to which the light for making LED light source send out converges in the small angle range of requirement, avoid the imaging phenomenon formed in desired small angle range and photochromic non-uniform phenomenon.
Description
Technical field
The utility model embodiment is related to LED lamp and its accessory technical field more particularly to a kind of LED lens and LED
Lamps and lanterns.
Background technology
LED light can assemble LED lens to converge light, to promote the illuminating effect of LED light on the outside of LED chip mostly.
And the LED lens that existing LED light uses can only converge in light when converging light in one larger angular range,
Light can typically now be converged within the scope of 8 °, if necessary to converge in light within the scope of 4 °, existing LED lens are with regard to nothing
When method accomplishes that angle reaches, hot spot will not be imaged or light color delamination.
Utility model content
The utility model embodiment technical problems to be solved first are, provide a kind of LED lens, are avoided that and are requiring
Small angle range in generate imaging phenomenon.
The utility model embodiment also technical problems to be solved are, provide a kind of LED lamp, are avoided that and are requiring
Imaging phenomenon is generated in small angle range.
In order to solve the above technical problems, the utility model embodiment provides the following technical solutions first：A kind of LED lens,
Including lens body, the bottom face of the lens body offers the accommodating chamber for accommodating LED light source, the side of lens body
The accommodating chamber is provided with fully reflecting surface, the top end face of lens body is exit facet, the lens body top end face middle part
To the recessed formation cavity in bottom end direction, the bottom of chamber face of the cavity forms pearl face, and the side wall of the cavity is formed around the pearl
The annular step tread of the multistage shape in face.
Further, if the ring ladder face include the top end face that several grades are parallel to lens body horizontal terrace and
Dry perpendicular terrace that is vertical with the horizontal terrace and being connected respectively between the adjacent horizontal terrace of two-stage.
Further, the accommodating chamber is to be recessed to be formed towards exit facet direction from the bottom end of lens body, the receiving
The side of chamber is cylindrical surface, and the end face by exit facet one end of accommodating chamber is for plane or to the convex arc protruded inside accommodating chamber
Face.
The utility model embodiment also provides the following technical solutions：A kind of LED lamp, including LED light source and cover at institute
The LED lens outside LED light source are stated, the LED lens are above-mentioned LED lens.
Using above-mentioned technical proposal, the utility model embodiment at least has the advantages that：The utility model is implemented
Example is uniformly mixed light, and control light direction by will be set as pearl face in the middle part of exit facet, keeps hot spot brightness and coloration equal
It is even, angle smaller, then it is surround the annular step tread that multistage shape is arranged in pearl face, when the light that LED light source is sent out is by the complete of LED lens
After reflecting surface total reflection, angle larger light will produce multiple refraction when passing through annular step tread, and the light of wide-angle is made to disperse, from
And the light for making LED light source send out is when converging in the small angle range of requirement, avoids being formed in desired small angle range
Imaging phenomenon and photochromic non-uniform phenomenon.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the utility model LED lens one embodiment.
Fig. 2 is the cross-sectional view of the utility model LED lens one embodiment.
Fig. 3 is the index path of the utility model LED lens one embodiment.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.It should be appreciated that below
Illustrative examples and explanation are only used for explaining the utility model, be not intended to limit the scope of the present invention, moreover, not rushing
In the case of prominent, the feature in the embodiments of the present invention and embodiment can be combined with each other.
As shown in Figure 1 and Figure 2, the utility model embodiment provides a kind of LED lens, including lens body first, described
The bottom face of mirror main body offers the accommodating chamber 2 for accommodating LED light source 1, and the side of lens body is set around the accommodating chamber 2
It is equipped with fully reflecting surface 3, the top end face of lens body is exit facet, to bottom end direction concave shape in the middle part of the lens body top end face
At cavity, the bottom of chamber face of the cavity forms pearl face 4, and the side wall of the cavity forms the ring of the multistage shape around the pearl face 4
Shape cascaded surface 5.The pearl face 4 is the face that the numerous half densely arranged round bead shape protrusions generated when lens injection molding are constituted.
As shown in figure 3, the utility model embodiment by will be set as pearl face 4 in the middle part of exit facet, is uniformly mixed light, and
And control light direction, make hot spot brightness and evenness, angle smaller, then surround the ring ladder that multistage shape is arranged in pearl face 4
Face 5, after fully reflecting surface 3 of the light that LED light source is sent out by LED lens is totally reflected, the larger light of angle passes through ring ladder
It will produce multiple refraction when face 5, the light of wide-angle made to disperse, to make the light that LED light source is sent out converge in the low-angle of requirement
In range, the imaging phenomenon formed in desired small angle range and photochromic non-uniform phenomenon are avoided.
In an alternative embodiment of the utility model, the annular step tread 5 is parallel to lens master including several grades
The horizontal terrace 51 of the top end face of body and several are vertical with the horizontal terrace 51 and be connected respectively the adjacent horizontal rank of two-stage
Perpendicular terrace 52 between face 51.After fully reflecting surface 3 of the light that LED light source is sent out by LED lens is totally reflected, angle is larger
Light passes through the multiple refraction of horizontal terrace 51 and perpendicular terrace 52, so that the light of wide-angle is disperseed, avoids outside desired small angle range
Dazzle is generated, light pollution is reduced, to which the light for making LED light source send out converges in the small angle range of requirement.
In an alternative embodiment of the utility model, the accommodating chamber 2 is from the bottom end of lens body towards outgoing
Face direction is recessed to be formed, and the side of the accommodating chamber is cylindrical surface 21, the end face by exit facet one end of accommodating chamber 2 for plane or
Person is to the convex globoidal 22 protruded inside accommodating chamber 2.The present embodiment by the bottom surface of lens body to exit facet direction concave shape
At accommodating chamber 2 with house LED light source 1, the cavity wall of accommodating chamber 2 as the plane of incidence to receive the light that LED light source is sent out, can be effective
Light losing is reduced, light utilization ratio is improved；By being set as accommodating chamber 2 to the inside of accommodating chamber by the end face of exit facet one end
Recessed arc surface 22 can effectively improve the internal surface area of accommodating chamber 2 to improve accommodating chamber 2 and receive the light that LED light source is sent out
Efficiency, improve the utility model LED lens light utilization.
The utility model embodiment also provides a kind of LED lamp, including LED light source 1 and covers at outside the LED light source
LED lens, the LED lens be above-mentioned LED lens.
Multistage shape is arranged by selecting in the middle part of exit facet the pearl face 4 that is provided with, and around exit facet in the utility model embodiment
Annular step tread 5 LED lens, after so that fully reflecting surface 3 of the light that LED light source 1 is sent out by LED lens is totally reflected, light
It is uniformly mixed, and controls light direction, make hot spot brightness and evenness, angle smaller, and the larger light of angle is passed through
It will produce multiple refraction when annular step tread 5, the light of wide-angle made to disperse, to make the light that LED light source is sent out converge in requirement
Small angle range in, avoid the imaging phenomenon formed in desired small angle range and photochromic non-uniform phenomenon.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are limited by appended claims and its equivalency range.
Claims (4)
1. a kind of LED lens, including lens body, the bottom face of the lens body offers the appearance for accommodating LED light source
Receive chamber, the side of lens body is provided with fully reflecting surface around the accommodating chamber, and the top end face of lens body is exit facet, special
Sign is：Pearl face is formed to the recessed formation cavity in bottom end direction, the bottom of chamber face of the cavity in the middle part of the lens body top end face,
The side wall of the cavity forms the annular step tread of the multistage shape around the pearl face.
2. LED lens according to claim 1, it is characterised in that：The ring ladder face includes that several grades are parallel to
The horizontal terrace of the top end face of mirror main body and several are vertical with the horizontal terrace and be connected respectively the adjacent horizontal rank of two-stage
Perpendicular terrace between face.
3. LED lens according to claim 1, it is characterised in that：The accommodating chamber be from the bottom end of lens body towards
Exit facet direction is recessed to be formed, and the side of the accommodating chamber is cylindrical surface, the end face by exit facet one end of accommodating chamber for it is saturating
The parallel plane of the top end face of mirror main body or to the convex globoidal protruded inside accommodating chamber.
4. a kind of LED lamp, including LED light source and cover at LED lens outside the LED light source, it is characterised in that：It is described
LED lens are LED lens as claimed in any one of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721645127.4U CN207750936U (en) | 2017-11-30 | 2017-11-30 | Led lens and led lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721645127.4U CN207750936U (en) | 2017-11-30 | 2017-11-30 | Led lens and led lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207750936U true CN207750936U (en) | 2018-08-21 |
Family
ID=63148084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721645127.4U Expired - Fee Related CN207750936U (en) | 2017-11-30 | 2017-11-30 | Led lens and led lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207750936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111913298A (en) * | 2019-05-08 | 2020-11-10 | 南京邮电大学 | Focal length controllable blazed negative refraction grating lens and design method thereof |
-
2017
- 2017-11-30 CN CN201721645127.4U patent/CN207750936U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111913298A (en) * | 2019-05-08 | 2020-11-10 | 南京邮电大学 | Focal length controllable blazed negative refraction grating lens and design method thereof |
| CN111913298B (en) * | 2019-05-08 | 2022-04-05 | 南京邮电大学 | Focal length controllable blazed negative refraction grating lens and design method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180821 |