CN104214671B - A kind of LED lamp with lens group - Google Patents
A kind of LED lamp with lens group Download PDFInfo
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- CN104214671B CN104214671B CN201310226435.3A CN201310226435A CN104214671B CN 104214671 B CN104214671 B CN 104214671B CN 201310226435 A CN201310226435 A CN 201310226435A CN 104214671 B CN104214671 B CN 104214671B
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- lens group
- light
- led lamp
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- 230000003287 optical effect Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 238000009738 saturating Methods 0.000 description 5
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A kind of LED lamp with lens group includes the lens group of a LED and a light direction for being arranged on the LED.The LED is arranged in the focus of one times of focal length of the lens group.The lens group includes first lens and second lens.First, second lens are all positive lens.First lens are arranged between the second lens and LED.More than the 90% of the light that the interarea of second lens sends LED to the distance of the interarea of the first lens enters the first lens.The LED of the LED lamp with lens group is arranged in the focus of one times of focal length of the lens group, the 90% of the light that the distance between interarea of first, second lens sends LED simultaneously enters the first lens, so that the light should with the LED lamp institute outgoing of lens group forms a hot spot with fine limit, when the light fixture is used in such as exhibition cabinet, when Jewelry cabinet etc. needs the occasion of irradiation specific region, the quality sense that the article of the irradiation will be improved, jewelry gives people.
Description
Technical field
The present invention relates to a kind of fixture, particularly a kind of LED lamp with lens group.
Background technology
Traditional light fixture is generally using Halogen lamp LED or fluorescent lamp as electric light source.Halogen lamp LED or fluorescent lamp power consumption are big, and
Temperature is high, is unfavorable for energy-conservation.With the development of LED technology, it has been found that LED is one of lighting source best at present, it has
There are luminosity height, long service life.LED has been widely used in illuminating lamp as light source.With people's life water
Flat raising, including live, building, business etc. more and more begin to use some for illuminate light fixture, in particular for
A kind of light fixture for using LED as light source, with save energy and increase lamp life.
And as the theory of " hommization illumination " is rooted in the hearts of the people, Lighting Design should build good house illumination or business is shone
Obvious results fruit, to meet the requirement of each side such as people's physiology, psychology.Particularly in some exhibition cabinets, the use occasion of Jewelry cabinet
In, as the article of required irradiation is only some articles to be puted on display or jewelry, and other regions are without illumination.
But either common conventional lamp, or existing LED lamp, the boundary of its hot spot formed in irradiation area is all mould
Paste, i.e., irradiation area is to be gradually transitions non-irradiated region, making it difficult to reach these exhibition cabinets, the irradiation of Jewelry cabinet will
Ask, and then the quality sense that irradiated article is given people is difficult to be improved.
Content of the invention
In view of this, it is necessary to provide a kind of face illuminating module luminous with face, to overcome above-mentioned deficiency.
A kind of LED lamp with lens group includes the saturating of a LED and a light direction for being arranged on the LED
Microscope group.The LED is arranged in the focus of one times of focal length of the lens group.The lens group include first lens and
One the second lens.First, second lens are all positive lens.First lens be arranged on the second lens and LED it
Between.More than 90% entrance first of the light that the interarea of second lens sends LED to the distance of the interarea of the first lens
Lens.Side of second lens in the both sides of light direction is that taper seat is raised, and opposite side is taper seat pit, and is somebody's turn to do
Taper seat projection is arranged on the side away from LED of second lens.
Compared with prior art, the lens group that the LED lamp with lens group has include two be all just saturating
First, second lens of mirror, and the LED is arranged in the focus of one times of focal length of the lens group, while described first,
The distance between interarea of two lens makes the 90% of the light that LED sends enter the first lens, so that lens should be had
The light of the LED lamp institute outgoing of group forms a hot spot with fine limit, when this has the LED lamp of lens group used in all
When the occasion for irradiating specific region is needed such as exhibition cabinet, Jewelry cabinet etc., will be greatly enhanced the article of the irradiation, jewelry and give people
Quality sense.
Description of the drawings
Below in conjunction with Description of Drawings embodiments of the invention, wherein：
A kind of structural representation of LED lamp with lens group that Fig. 1 is provided for the present invention.
Schematic cross-sections of the Fig. 2 for the LED lamp with lens group of Fig. 1.
Fig. 3 is index path of the LED lamp with lens group of books on some section.
Specific embodiment
The specific embodiment of the present invention is further elaborated below based on accompanying drawing.It should be appreciated that this place is retouched
The specific embodiment that states is only used as embodiment, the protection domain being not intended to limit the present invention.
Fig. 1 to Fig. 3 is referred to, which is a kind of structural representation of LED lamp 100 with lens group provided by the present invention
Figure.The LED lamp 100 with lens group is included in a LED 11 and a light direction for being arranged on the LED 11
Lens group 12.
The lens group 12 includes first lens 121 and second lens 122.First lens 121 are one
Individual positive lens, and be arranged between the LED 11 and the second lens 122.First lens 121 go out light side along LED 11
To both sides in side be that taper seat is raised, and opposite side is plane, while the LED 11 is arranged on first lens 121
There is that side of plane.Second lens 122 are also a positive lens.Second lens 122 go out light side along LED 11
To both sides in side can be that taper seat is raised, opposite side is taper seat pit, and the taper seat projection be arranged on this
The side away from LED 11 of two lens 122, and taper seat pit is arranged on the one of the close LED 11 of second lens 122
Side.The shape of the taper seat pit is so that the emergent light of the taper seat pit is defined for non-aggregate light beam.Due to LED 11
Structure determined with principle of luminosity, a branch of light sent by LED 11, and the colour temperature of its central light beam is generally than edge light beam
Colour temperature high, if a branch of light sent by LED 11 makes central light beam converge with edge beam crosses through certain lens
After re-form hot spot, then the center colour temperature of the hot spot can be lower than edge colour temperature because through lens intersection converge when, center light
Beam and edge light beam intersect convergent point and have carried out mixing and cause above-mentioned result at this.Therefore, in the present embodiment, with institute
The taper seat pit that emergent light is non-aggregate light beam is stated, and the taper seat pit is arranged on the second lens 122 so that second is saturating
Mirror 122 does not have and intersects the phenomenon generation that converges.And first lens 121 are a planoconvex spotlight, there will not be intersection and converge
Phenomenon produce, such that it is able to, while the light-gathering of the LED lamp with lens group is ensured, also ensure which is formed
Hot spot center colour temperature uniformity.Those skilled in the art are known, first, second lens 121,122
Taper seat projection is come by a sphere extension, in order that the rising angle of the lens group 12 is less than 15 degree, described first,
The raised curvature along the optical axis of first, second lens 121,122 of the taper seat of the second lens 121,122 should be 4 to 7.
It is well known that each lens has at least one interarea, before interarea is explained, in addition it is also necessary to while explaining lens
Principal point.Principal point and interarea are all the proprietary terms in perfect optical system, and principal point refers to light after this point, at which altogether
In yoke space, a pair of constant conjugate points of logitudinal magnification combine these conjugate points in the face perpendicular to main shaft to be formed
It is called interarea, that is, light is propagated between the interarea of two conjugation, its direction of propagation is necessarily parallel to main shaft.Described first is saturating
The distance between mirror 121, respective interarea of the second lens 122 are located at should the focus of one times of focal length of the lens group 12
The side with plane of first lens 121, and the LED 11 should be arranged on one times of focal length of the lens group 12
On, so that the light that sent of LED 11 forms a hot spot with fine limit with the principle being imaged.In order to this has lens
The light of 100 outgoing of LED lamp of group forms the purpose of a hot spot with fine limit, while improving institute to greatest extent
State the utilization rate i.e. light efficiency of the light sent by LED 11, between the interarea of the interarea of second lens 122 to the first lens 121
Distance more than the 90% of light that LED 11 sends should be made to enter the first lens 121 or make the plane of first lens 121
It is light in 170 degree that side joint receives the coning angle from the LED 11.It is, of course, understood that when LED 11 sends
More than the 90% of light or coning angle be that light in 170 degree enters the first lens 121 and goes out to be shot out from the second lens 122 so that
The raising of light efficiency also contributes to the formation of the hot spot of the fine limit, because the brighter contrast with periphery non-irradiated region of hot spot
Degree will be higher.The method for reaching the purpose, is exactly by adjusting between second lens 122 and the interarea of the first lens 121
Distance.Also therefore, second lens 122 will be with 121 interval setting of the first lens.In order that the second lens 122 can connect
The maximum of the emergent light from the first lens 121 is received, the clear aperature of the first lens 121 should be made to be less than the second lens 122
Clear aperature.
In the present invention, the LED 11 be a kind of light source 20, it is of course possible to it is contemplated that the size of light source with described
The dimension scale of lens group 12 is controlled in the range of dimension scale of the lens group 12 with LED 11 as described in the present embodiment,
Other lamps, such as Halogen lamp LED etc. can also be used as light source.The structure and working principle of the LED 11 is people in the art
Member is known, will not be described here.
Compared with prior art, 100 the had lens group 12 of LED lamp with lens group includes that two are just all
First, second lens 121,122 of lens, and the LED 11 is arranged in the focus of one times of focal length of the lens group 12, with
It is saturating that the distance between interarea of first, second lens 121,122 of Shi Suoshu makes the 90% of the light that LED 11 sends enter first
Mirror 121, so that the light should with 100 outgoing of LED lamp of lens group forms a hot spot with fine limit, when
When should have the LED lamp 100 of lens group to be used in the occasion that such as exhibition cabinet, Jewelry cabinet etc. need irradiation specific region, by pole
The earth improves the article of the irradiation, the quality sense that jewelry gives people.
Presently preferred embodiments of the present invention is the foregoing is only, not in order to limit the present invention, all in essence of the invention
Interior made any modification of god and principle, equivalent and improvement etc., should be included in the interior of protection scope of the present invention.
Claims (9)
1. a kind of LED lamp with lens group, it include a LED and a light direction for being arranged on the LED
Lens group, it is characterised in that：The LED is arranged in the focus of one times of focal length of the lens group, and the lens group includes
One the first lens and second lens, first, second lens are all positive lens, and first lens are arranged on second
Between lens and LED, the 90% of light that the interarea of second lens sends LED to the distance of the interarea of the first lens
The first lens of above entrance, side of second lens in the both sides of light direction are that taper seat is raised, and opposite side is circle
Conical surface pit, and the taper seat projection is arranged on the side away from LED of second lens.
2. there is the LED lamp of lens group as claimed in claim 1, it is characterised in that：Second lens have taper seat
The emergent light of pit is non-aggregate light beam.
3. there is the LED lamp of lens group as claimed in claim 1, it is characterised in that：First lens are along light direction
Both sides in side be that taper seat is raised, opposite side is plane.
4. there is the LED lamp of lens group as claimed in claim 3, it is characterised in that：The LED is arranged on described first
The planar side of lens.
5. there is the LED lamp of lens group as claimed in claim 3, it is characterised in that：The plane side joint of first lens
The coning angle that receives from LED is light in 170 degree.
6. there is the LED lamp of lens group as claimed in claim 3, it is characterised in that：The master of first, second lens puts down
The distance between face makes the focus of one times of focal length of the lens group be located at the planar side of first lens.
7. there is the LED lamp of lens group as claimed in claim 1, it is characterised in that：The side of first, second lens
Raised for taper seat, the raised curvature along its optical axis of the taper seat is 4 to 7, so that the rising angle of the lens group is less than 15
Degree.
8. there is the LED lamp of lens group as claimed in claim 1, it is characterised in that：The clear aperature of first lens
Clear aperature less than the second lens.
9. there is the LED lamp of lens group as claimed in claim 1, it is characterised in that：First, second lens separation sets
Put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310226435.3A CN104214671B (en) | 2013-05-29 | 2013-05-29 | A kind of LED lamp with lens group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310226435.3A CN104214671B (en) | 2013-05-29 | 2013-05-29 | A kind of LED lamp with lens group |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104214671A CN104214671A (en) | 2014-12-17 |
| CN104214671B true CN104214671B (en) | 2017-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310226435.3A Active CN104214671B (en) | 2013-05-29 | 2013-05-29 | A kind of LED lamp with lens group |
Country Status (1)
| Country | Link |
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| CN (1) | CN104214671B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907593A (en) * | 2015-12-23 | 2017-06-30 | 欧普照明股份有限公司 | A kind of Optical devices and lighting device |
| US11054108B2 (en) | 2017-01-17 | 2021-07-06 | Signify Holding B.V. | Adjustable spot light position generation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852387A (en) * | 2010-04-23 | 2010-10-06 | 广东威创视讯科技股份有限公司 | Illuminating light path and LED light machine illuminating system with same |
| CN102109142A (en) * | 2009-12-24 | 2011-06-29 | 精工爱普生株式会社 | Collimator lens unit, illuminating device, and projector |
| CN202125883U (en) * | 2011-06-08 | 2012-01-25 | 杭州瑾丽光电科技有限公司 | Lighting device for double converging lens and imaging objective lens |
| CN203273703U (en) * | 2013-05-29 | 2013-11-06 | 林万炯 | Light emitting diode (LED) lamp with lens group |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4661149B2 (en) * | 2003-12-22 | 2011-03-30 | セイコーエプソン株式会社 | Lighting device and projector |
-
2013
- 2013-05-29 CN CN201310226435.3A patent/CN104214671B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102109142A (en) * | 2009-12-24 | 2011-06-29 | 精工爱普生株式会社 | Collimator lens unit, illuminating device, and projector |
| CN101852387A (en) * | 2010-04-23 | 2010-10-06 | 广东威创视讯科技股份有限公司 | Illuminating light path and LED light machine illuminating system with same |
| CN202125883U (en) * | 2011-06-08 | 2012-01-25 | 杭州瑾丽光电科技有限公司 | Lighting device for double converging lens and imaging objective lens |
| CN203273703U (en) * | 2013-05-29 | 2013-11-06 | 林万炯 | Light emitting diode (LED) lamp with lens group |
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| Publication number | Publication date |
|---|---|
| CN104214671A (en) | 2014-12-17 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20161122 Address after: 315103 Ningbo national high tech Zone, Zhejiang, No. 1345 Applicant after: SELF ELECTRONICS CO., LTD. Address before: The national high tech Zone Juxian 315103 Ningbo Road, Zhejiang province No. 1345 Ningbo Purcell Electronics Ltd. Applicant before: Lin Wanjiong |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |