CN208460799U - A kind of novel light-emitting device - Google Patents
A kind of novel light-emitting device Download PDFInfo
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- CN208460799U CN208460799U CN201820902747.XU CN201820902747U CN208460799U CN 208460799 U CN208460799 U CN 208460799U CN 201820902747 U CN201820902747 U CN 201820902747U CN 208460799 U CN208460799 U CN 208460799U
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Abstract
The utility model discloses a kind of novel light-emitting device, including bracket, cavity is equipped in the bracket, luminescence chip is equipped in the cavity, what the luminescence chip issued is light of the wave band in 365nm-420nm, fluorescent glue is also filled in the cavity, the fluorescent glue wraps luminescence chip；The cavity includes light-emitting surface, side and bottom surface, the luminescence chip is mounted on the bottom surface, the bottom surface faces light-emitting surface, and the side is equipped with reflectance coating, is additionally provided with the absorbing mechanism that can be absorbed to light wave range in the wave band of 365nm-420nm on the side.The utility model can be absorbed the light that extra purple light or ultraviolet light and reflected fluorescent light powder issue, not only reduced purple light or ultraviolet light leakage, but also improve out light by the way that the absorbing mechanism of reflectance coating and 365nm-420nm wave band is arranged simultaneously in side face.
Description
Technical field
The utility model relates to LED encapsulation fields, more particularly to a kind of novel light-emitting device.
Background technique
LED is a kind of solid state light emitter small in size and power saving, referred to as green light source, can be widely applied to various common photographs
The fields such as bright and display, and in LED application field, wherein it is most wide with the application range of white light and demand is also maximum, and by
There is the characteristic of full spectrum in daylight, be to give comfortable crucial and generally received by masses, thus existing white light source
It is biased to the light source with full spectrum, white light is formed there are mainly three types of mode in the prior art, and one is excite by blue chip
Green emitting phosphor and red fluorescence powder, this mode can obtain the white light of high color rendering index (CRI), but this mode obtain it is white
Light still has missing in 470-520nm band spectrum, and the R12 in LED product colour rendering index is caused to be difficult to improve；Another kind is to pass through
Red, green, blue optical chip is subjected to mixing realization, but the bandwidth of every a shade is all rather narrow, and is feux rouges, blue light, green light is folded
Discontinuous spectrogram is formed after adding, so that the characteristic of full spectrum can not be presented, and the luminous efficiency of single colored chip is lower；Third
It kind is that red, green, blue three primary colors fluorescent powder is excited by ultraviolet light or purple light chip, this mode can utmostly simulation be too
Sunlight obtains the aobvious light referred to of superelevation, while also reducing blue light harm, and therefore, ultraviolet or purple light excited LED becomes current
Trend.
But this will lead to ultraviolet or purple light light source by fluorescent powder absorb insufficient or fluorescent powder using ultraviolet light after decaying or
The case where purple light is revealed.
Utility model content
Technical problem to be solved by the utility model is: providing the harm and side effect of a kind of reduction ultraviolet light or purple light
Luminescent device, and the luminescent device of a kind of better ultraviolet light of light efficiency or purple light excited full spectrum is provided, efficiently mix it is red,
Green, blue three-color fluorescent powder light becomes white light, to obtain the colour rendering index of superelevation.
The solution that the utility model solves its technical problem is: a kind of novel light-emitting device, including bracket, the branch
It is equipped with cavity in frame, luminescence chip is equipped in the cavity, what the luminescence chip issued is wave band in 365nm-420nm
Light is also filled with fluorescent glue in the cavity, and the fluorescent glue wraps luminescence chip；The cavity includes light-emitting surface, side
Face and bottom surface, the luminescence chip are mounted on the bottom surface, and the bottom surface faces light-emitting surface, and the side is equipped with
Reflectance coating is additionally provided with the absorbing mechanism that can be absorbed to light wave range in the wave band of 365nm-420nm on the side.
As a further improvement of the above technical scheme, the absorbing mechanism includes light absorber, the light absorber energy
The enough light to wave band in 365nm-420nm absorbs, and the light absorber and reflectance coating are integrally formed.
As a further improvement of the above technical scheme, the fluorescent glue fills full entire cavity space.
As a further improvement of the above technical scheme, the upper surface of the fluorescent glue is equipped with diffusion barrier.
As a further improvement of the above technical scheme, lens are additionally provided with outside the bracket.
It as a further improvement of the above technical scheme, include scattering powder in the lens.
As a further improvement of the above technical scheme, the light-emitting surface also is provided with absorbing mechanism.
As a further improvement of the above technical scheme, the light-emitting surface is equipped with reflectance coating, and the reflectance coating is to light wave model
The light for being trapped among the wave band of 365nm-420nm is reflected.
As a further improvement of the above technical scheme, the bottom surface of the cavity is equipped with total reflection film.
As a further improvement of the above technical scheme, the absorbing mechanism includes absorbing film, and the absorbing film is located at recessed
Between the side wall and reflectance coating of chamber, the absorbing film can absorb light wave range in the wave band of 365nm-420nm.
The beneficial effects of the utility model are: the utility model by using ultraviolet light or purple light excited fluorescent powder come
Acquisition spectral component is uniform, colour rendering index is high, the ideal white light of color stable；And phosphor gel is wrapped around ultraviolet light or purple
Outside optical chip, ultraviolet light or purple light are fully contacted with fluorescent powder, improves light efficiency, while by the side of bracket
Reflectance coating and ultraviolet light or purple light absorbing mechanism are set, the leakage of ultraviolet light or purple light is effectively prevented.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His design scheme and attached drawing.
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
Art personnel other embodiments obtained without creative efforts belong to the model of the utility model protection
It encloses.In addition, all connection/connection relationships being previously mentioned in text, not singly refer to that component directly connects, and referring to can be according to specific reality
Situation is applied, by adding or reducing couple auxiliary, to form more preferably coupling structure.Each technology in the invention is special
Sign, can be with combination of interactions under the premise of not conflicting conflict.
Embodiment one: referring to Fig.1, a kind of novel light-emitting device, including bracket 1 is equipped with cavity 11 in the bracket, described
Luminescence chip 12 is equipped in cavity, what the luminescence chip 12 issued is light of the wave band in 365nm-420nm, is gone back in the cavity
Filled with fluorescent glue 2, the fluorescent glue 2 wraps luminescence chip；The cavity 11 includes light-emitting surface, side and bottom surface,
The luminescence chip is mounted on the bottom surface, and the bottom surface faces light-emitting surface, and the side is equipped with reflectance coating 3, institute
State the absorbing mechanism that is additionally provided with and can be absorbed to light wave range in the wave band of 365nm-420nm on side.Reflectance coating 3 can
Light of the light wave range outside 365nm-420nm is reflected.
It is further used as preferred embodiment, the absorbing mechanism includes light absorber, and the light absorber can be right
Light of the wave band in 365nm-420nm is absorbed, and the light absorber and reflectance coating are integrally formed.
Other than being integrally formed absorbing mechanism and reflectance coating, the absorbing mechanism can also be that one layer individually absorbs
Film, which can be absorbed light wave range in the light of 365nm-420nm, and the interior table in reflectance coating can be set in the absorbing film
Face, between reflectance coating and side wall.
It, can be in addition to other than side increases absorbing mechanism in order to further be absorbed to purple light or ultraviolet light
Absorbing mechanism is set in light-emitting surface, the absorbing mechanism of light-emitting surface setting can be similar with the absorbing mechanism of side.The light-emitting surface
Other than absorbing mechanism is set, be also provided with reflectance coating, the reflectance coating to light wave range 365nm-420nm wave band
Light reflected.By reflectance coating, reflected light can be made to continue to excite with fluorescent glue, increase fluorescent powder excitation effect
Rate finally increases light out.
It is further used as preferred embodiment, the upper surface of the fluorescent glue is equipped with diffusion barrier 4.Covering diffusion barrier can be with
The white light that fluorescent powder issues is broken up, light-emitting uniformity is improved.
It is further used as preferred embodiment, the fluorescent glue fills full entire cavity space.Fluorescent glue is more, then light
Colour mixture might as well, the light efficiency of light is more preferable out.
It is further used as preferred embodiment, the fluorescent glue includes three kinds of red, green, blue of fluorescent powder.
It is further used as preferred embodiment, is additionally provided with lens (not regarding in figure) outside the bracket.By increasing lens,
The light efficiency of adjustable light out.And functional film can be increased in lens, so that illumination effect is more preferable.In addition, also
Scattering powder particles can be added simultaneously when lens form, improve light-out effect.
It is further used as preferred embodiment, the bottom surface of the cavity is equipped with total reflection film.By complete in bottom surface setting
The light efficiency of light can be improved out in reflectance coating.
The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention
Type or replacement, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (10)
1. a kind of novel light-emitting device, including bracket, it is equipped with cavity in the bracket, is equipped with luminescence chip in the cavity,
Be characterized in that: what the luminescence chip issued is light of the wave band in 365nm-420nm, is also filled with fluorescent glue in the cavity,
The fluorescent glue wraps luminescence chip；The cavity includes light-emitting surface, side and bottom surface, and the luminescence chip is mounted on
On the bottom surface, the bottom surface faces light-emitting surface, and the side is equipped with reflectance coating, and being additionally provided on the side can be right
The absorbing mechanism that light wave range is absorbed in the wave band of 365nm-420nm.
2. novel light-emitting device according to claim 1, it is characterised in that: the absorbing mechanism includes light absorber, institute
Wave band can be absorbed in the light of 365nm-420nm by stating light absorber, and the light absorber and reflectance coating are integrally formed.
3. novel light-emitting device according to claim 1, it is characterised in that: the full entire cavity of fluorescent glue filling is empty
Between.
4. novel light-emitting device according to claim 1, it is characterised in that: the upper surface of the fluorescent glue is equipped with diffusion
Film.
5. novel light-emitting device according to claim 1, it is characterised in that: be additionally provided with lens outside the bracket.
6. novel light-emitting device according to claim 5, it is characterised in that: include scattering powder in the lens.
7. novel light-emitting device according to claim 1, it is characterised in that: the light-emitting surface also is provided with absorbing mechanism.
8. novel light-emitting device according to claim 7, it is characterised in that: the light-emitting surface is equipped with reflectance coating, described anti-
Light of the film to light wave range in the wave band of 365nm-420nm is penetrated to reflect.
9. novel light-emitting device according to claim 1, it is characterised in that: the bottom surface of the cavity is equipped with total reflection film.
10. novel light-emitting device according to claim 1, it is characterised in that: the absorbing mechanism includes absorbing film, described
Absorbing film is located between the side wall and reflectance coating of cavity, the absorbing film can to light wave range 365nm-420nm wave band
It is absorbed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820902747.XU CN208460799U (en) | 2018-06-11 | 2018-06-11 | A kind of novel light-emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820902747.XU CN208460799U (en) | 2018-06-11 | 2018-06-11 | A kind of novel light-emitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208460799U true CN208460799U (en) | 2019-02-01 |
Family
ID=65160902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201820902747.XU Active CN208460799U (en) | 2018-06-11 | 2018-06-11 | A kind of novel light-emitting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416373A (en) * | 2019-07-10 | 2019-11-05 | 瑞识科技（深圳）有限公司 | A kind of front goes out the LED light emitting device and preparation method thereof of light |
| CN112071973A (en) * | 2019-06-11 | 2020-12-11 | 李宛儒 | Surface-modified light-emitting chip and preparation method thereof |
-
2018
- 2018-06-11 CN CN201820902747.XU patent/CN208460799U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112071973A (en) * | 2019-06-11 | 2020-12-11 | 李宛儒 | Surface-modified light-emitting chip and preparation method thereof |
| CN110416373A (en) * | 2019-07-10 | 2019-11-05 | 瑞识科技（深圳）有限公司 | A kind of front goes out the LED light emitting device and preparation method thereof of light |
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