CN106641752A - Light distribution module and lamp - Google Patents
Light distribution module and lamp Download PDFInfo
- Publication number
- CN106641752A CN106641752A CN201611053000.3A CN201611053000A CN106641752A CN 106641752 A CN106641752 A CN 106641752A CN 201611053000 A CN201611053000 A CN 201611053000A CN 106641752 A CN106641752 A CN 106641752A
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- CN
- China
- Prior art keywords
- intensity distribution
- luminous intensity
- distribution module
- led
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a light distribution module and a lamp, relates to the technical field of illumination equipment, and provides the light distribution module with a small size. The light distribution module comprises a base plate; a plurality of LED light sources are arranged on the base plate; a light mixing cover is arranged outside the LED light sources in a covering mode; and a total internal reflection lens is arranged at a light outlet of the light mixing cover. The light distribution module is used for forming a light-gathering light beam.
Description
Technical field
The present invention relates to field of lighting devices, more particularly to a kind of luminous intensity distribution module and light fixture.
Background technology
At present in light fixture market, LED spotlight has been widely used, and especially in furniture lighting field, there is PAR lamp
(Parabolic Aluminum Reflector dishes shape aluminium reflectoscopes), (maximum outside diameter is that 2 inches of band multiaspect is anti-to MR16 lamps
Penetrate the light fixture of cover), smallpox shot-light etc..
The luminous intensity distribution module adopted in light fixture in prior art includes that multiple SMD LED arranged with array way (are pasted on surface
Dress light emitting diode) light source, a TIR lens (total internal reflection lens) is respectively mounted before each LED/light source carries out independent luminous intensity distribution, most
Afterwards all array beams are carried out into mixing superposition, to form light beam.
In the luminous intensity distribution module of prior art, a TIR lens are equipped with before each LED, cause TIR lens in luminous intensity distribution module
Module size is larger.
The content of the invention
Embodiments of the invention provide a kind of luminous intensity distribution module and light fixture, it is possible to provide a kind of luminous intensity distribution module of small volume.
To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：
A kind of luminous intensity distribution module, including substrate, are provided with multiple LED/light sources, multiple LED/light source outer covers on the substrate
Optical mixing cover is provided with, at the light-emitting window of the optical mixing cover total internal reflection lens are provided with.
The embodiment of the invention also discloses a kind of light fixture, using above-mentioned luminous intensity distribution module.
Luminous intensity distribution module provided in an embodiment of the present invention and luminous intensity distribution module, the multiple LED/light sources in luminous intensity distribution module are installed on
On substrate, optical mixing cover is covered with outside multiple LED/light sources, total internal reflection lens are provided with the light-emitting window of optical mixing cover, LED/light source is sent out
The light elder generation Jing optical mixing covers for going out carry out a mixed light, reduce the lighting area of LED/light source, then are carried out by total internal reflection lens secondary
Luminous intensity distribution, so as to form light beam, relative to prior art, multiple LED/light sources in the luminous intensity distribution module of the embodiment of the present invention, only adopts
Mixed light and optically focused, the small volume of total internal reflection lens module are capable of achieving with an optical mixing cover and a total internal reflection lens.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of embodiment of the present invention luminous intensity distribution module；
Fig. 2 is the structural representation of optical mixing cover in embodiment of the present invention luminous intensity distribution module；
Fig. 3 is the schematic diagram that LED/light source is arranged on substrate with circumference array in embodiment of the present invention luminous intensity distribution module；
Fig. 4 is the schematic diagram that LED/light source is arranged on substrate with rectangular array in embodiment of the present invention luminous intensity distribution module；
Fig. 5 is the structural representation of prior art luminous intensity distribution module；
Fig. 6 is the light spot illumination effect diagram of prior art luminous intensity distribution module；
Fig. 7 is the illumination figure of prior art luminous intensity distribution module；
Fig. 8 is the distribution curve flux figure of prior art luminous intensity distribution module；
Fig. 9 is the light spot illumination effect diagram of embodiment of the present invention luminous intensity distribution module；
Figure 10 is the illumination figure of embodiment of the present invention luminous intensity distribution module；
Figure 11 is the distribution curve flux figure of embodiment of the present invention luminous intensity distribution module.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
In describing the invention, it is to be understood that term " " center ", " on ", D score, "front", "rear", " left side ",
The orientation or position relationship of the instruction such as " right side ", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " is based on shown in the drawings
Orientation or position relationship, be for only for ease of description the present invention and simplify description, rather than indicate or imply indication device or
Element with specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
There are basic concepts as follows in luminous intensity distribution module：Light extraction efficiency, i.e., the amount of light of whole device goes out light with light source
Amount ratio；Beam angle, refers to the angle that light intensity is reached at the 50% of normal light intensity, both sides are formed；Optical axis, light source sends light beam
Center line.
With reference to Fig. 1, the embodiment of the present invention is a kind of luminous intensity distribution module, including substrate 1, and multiple LED/light sources are provided with substrate 1
Optical mixing cover 3 is covered with outside 2, and multiple LED/light sources 2, the light-emitting window of optical mixing cover is provided with total internal reflection lens 4.
Luminous intensity distribution module provided in an embodiment of the present invention, multiple LED/light sources 2 is installed on substrate 1, in multiple LED/light sources 2
Optical mixing cover 3 is covered with outward, and total internal reflection lens 4 are provided with the light-emitting window of optical mixing cover 3, the light elder generation Jing optical mixing covers that LED/light source 2 sends
3 carry out a mixed light, reduce the lighting area of LED/light source 2, then carry out secondary light-distribution by total internal reflection lens 4, so as to be formed
Light beam, relative to prior art, multiple LED/light sources in the luminous intensity distribution module of the embodiment of the present invention, only with an optical mixing cover
Mixed light and optically focused, the small volume of total internal reflection lens module are capable of achieving with a total internal reflection lens.
Further, the plane of incidence of complete interior diversing lens 4 is provided with the groove 41 to exit facet depression in the embodiment of the present invention,
The groove 41 is hemispherical, as shown in Figure 1.The complete interior diversing lens 4 of this indent design, can reduce curved surface luminous to LED
The diffusion of point.
A kind of lens of prior art are provided with the groove to exit facet depression in the plane of incidence, exit facet be provided with it is symmetrical and
The cambered surface or sphere of outwardly convex, the lens are larger in the Curvature varying of exit facet, and curved surface is tall and thin and steeper so that light
Easily there is diffusion, cause luminous point scattered obvious.The half of the upper groove 41 of total internal reflection lens 4 in the embodiment of the present invention
Footpath is R1, optical mixing cover 3 is designed as into cylinder, the radius of the optical mixing cover 3 is R2, meet R1=R2, the outgoing of complete interior diversing lens
Face is plane, as shown in Fig. 1～2.Little relative to the curvature of curve change because of groove, curved surface is short and stout and gentle, can be further
Diffusion of the curved surface to LED luminous points is reduced, increases the mixed light effect between difference LED luminous points.
With reference to shown in Fig. 2～3, if by multiple LED/light sources 2 with circumference array arrangement, the circumference array of the LED/light source 2 is most
Large radius r, is the height H of optical mixing cover 3 along the beam projecting direction of LED/light source 2, meets following condition：1.2255r≤H ＜ 4r.
If the height H of optical mixing cover 3 is less than 1.2255r, it is impossible to carry out effective mixed light to array LED/light source 2, the uniformity of hot spot declines,
Lighting effect is too poor；If the height H of optical mixing cover 3 is more than 4r, the light extraction efficiency of luminous intensity distribution module can decline to a great extent.
Preferably, in the embodiment of the present invention optical mixing cover 3 height H=1.2255r, both array LED/light source can be had
Effect mixed light, preferably, the light extraction efficiency of luminous intensity distribution module is also higher for the uniformity of hot spot.
Specifically, when LED/light source 2 is arranged, if circumference array maximum radius r of LED/light source 2 is less than 2.4mm, LED
Too closely, the thermal source of LED is concentrated very much for the arrangement of light source 2, causes radiating effect poor, so as to cause larger light decay；If LED
Circumference array maximum radius r of light source 2 is more than 9.5mm, and the arrangement of LED/light source 2 excessively disperses, cause the volume of luminous intensity distribution module compared with
Greatly.It is therefore preferred that the embodiment of the present invention by the control of circumference array maximum radius r of LED/light source 2 2.4mm～9.5mm it
Between, to ensure preferable lighting effect.
With reference to Fig. 2 and Fig. 4, if multiple LED/light sources 2 are with rectangular array arrangement, the center distance of two adjacent LEDs light source is
D, when the height H of optical mixing cover 3 is more than 4d, the light extraction efficiency of luminous intensity distribution module can be greatly lowered；If the height H of optical mixing cover 3 is less than d
When, optical mixing cover it is highly too low, it is impossible to effective mixed light is carried out to array LED/light source, the uniformity of hot spot can decline.Therefore, originally
The height H spans of inventive embodiments optical mixing cover 3 are：D≤H ＜ 4d.
For these reasons, it is preferable that the height H of optical mixing cover 3 is equal to two adjacent LEDs with designing by the embodiment of the present invention
Center distance d of light source, can carry out effective mixed light to array LED/light source, higher with the uniformity for ensureing hot spot, and with optical mode
The light extraction efficiency of group is higher, and lighting effect is preferable.
When LED/light source is arranged, if center distance d of two adjacent LEDs light source is less than 3.3mm, LED/light source was arranged
In tight, thermal source is caused to be concentrated, radiating effect is poor, so as to cause larger light decay；When the center distance of two adjacent LEDs light source
D is more than 12.8mm, and LED/light source 2 is arranged and excessively disperse, and the volume of luminous intensity distribution module is excessive, therefore, a reality of the embodiment of the present invention
Apply example center distance d of two adjacent LEDs light source to be controlled between 3.3mm～12.8mm so that the thermal source of luminous intensity distribution module compared with
Dispersion, lighting effect is preferable.
Above-mentioned optical mixing cover 3 can adopt high reflection plastic production, and the price of high reflection plastics is relatively low, and reflectivity is higher, most
It is high by reachable more than 0.95.Additionally, carrying out surface Asia light handling process to optical mixing cover again, can not only make the surface of optical mixing cover can keep
It is smooth, and low polishing can produce diffusing reflection, so as to improve the light mixing effect of optical mixing cover, and improve the uniformity of hot spot.
In order to the light for eliminating discrete point strip of light is uncontrollable and the uneven problem of hot spot, the surface of above-mentioned groove 41
Can be processed using transparent mirror finish or fine grinding sand is processed, an optional embodiment is by the table of groove 41 in the embodiment of the present invention
Face is using the process of fine grinding sand, process is simple, and lighting effect is also preferable.
Additionally, the LED/light source 2 in the embodiment of the present invention adopts SMD LED/light sources, because of the low price of SMD LED/light sources,
The cost of luminous intensity distribution module can be reduced.
The embodiment of the present invention also includes a kind of light fixture, above-mentioned luminous intensity distribution module is employed, due in the embodiment of the present invention
The luminous intensity distribution module installed in light fixture is identical with the luminous intensity distribution modular structure provided in each embodiment of above-mentioned luminous intensity distribution module, therefore the two
Identical technical problem is can solve the problem that, and reaches identical Expected Results.
Prior art also has a kind of luminous intensity distribution module, including substrate 10, and substrate 10 is provided with LED/light source 20, and LED/light source 20 sets
Have in total internal reflection lens 30, total internal reflection lens 30 and be provided with groove 31, the shape of groove 31 is as shown in Figure 5.
Below by TracePro softwares respectively to the prior art and the embodiment of the present invention shown in above-mentioned Fig. 5
It is analyzed respectively, so that LED/light source is for 4 as an example, adjustment beam angle is parameter based on 24 °, prior art luminous intensity distribution module
Technical Analysis result is that shown in Fig. 6～8, the Technical Analysis result of embodiment of the present invention luminous intensity distribution module is Fig. 9～11
It is shown.
Fig. 6's horizontally and vertically represents respectively lateral coordinates of hot spot and vertical in the analysis result of prior art luminous intensity distribution module
To coordinate, the bar shaped icon representation intensity of illumination (unit be lux, lux) in left side in figure.As can be seen from Figure 6, using existing
There is the technical scheme of total internal reflection lens, substantially occur 4 bright spots in hot spot design sketch, hot spot uniformity is poor.And with reference to
Data in Fig. 7 and Fig. 8, transverse axis represents hot spot coordinate value laterally or longitudinally in Fig. 7, and ordinate represents intensity of illumination, two
Curve is respectively the horizontal and vertical illumination curve of hot spot, it is seen that illumination curve horizontal and vertical on hot spot goes out
Layering is showed, curve fragmentation hypothesis Mingguang City spot inhomogeneities is larger；Four curves of Fig. 8 represent respectively 4 along optical axis rotate and with
Horizontal plane in 0 °, 45 °, 90 ° and 135 ° of tangent plane, radially represents intensity of illumination respectively, and circumferencial direction represents angle, from figure
Can be seen that, layering occurs in distribution curve flux, difference occur in different tangent planes, and curve separates the technical side of explanation prior art luminous intensity distribution module
Case cannot realize effective mixed light, equally also illustrate that hot spot inhomogeneities is larger.
Transverse and longitudinal coordinate and curve represent consistent with the above in analysis result figure in the embodiment of the present invention, herein no longer
Repeat.As can be seen from Figure 9, using the lens technologies scheme of the embodiment of the present invention, without obvious bright spot in hot spot design sketch, light
Preferably, in conjunction with the analysis result of Figure 10 and Figure 11, the horizontal and vertical illumination curve of hot spot is poor in Figure 10 for the uniformity of spot
It is different less to essentially coincide, show hot spot uniformity preferably, the intensity of illumination distributional difference of four tangent planes is less in Figure 11, curve
Basically identical and circumference is symmetrical, without layering, shows that the light mixing effect to array LED luminous point is good, and further illustrates
The uniformity of hot spot is preferable.
In a word, from the point of view of the analysis result of TracePro softwares, relative to prior art, embodiment of the present invention luminous intensity distribution module
Light distribution effect preferably, preferably, and lighting effect is also good for the uniformity of hot spot.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by the scope of the claims.
Claims (14)
1. a kind of luminous intensity distribution module, including substrate, is provided with multiple LED/light sources on the substrate, it is characterised in that multiple described
Optical mixing cover is covered with outside LED/light source, at the light-emitting window of the optical mixing cover total internal reflection lens are provided with.
2. luminous intensity distribution module according to claim 1, it is characterised in that the plane of incidence of the total internal reflection lens is provided with to going out
The groove of face depression is penetrated, the groove is hemispherical.
3. luminous intensity distribution module according to claim 2, it is characterised in that the radius of the groove is R1, the optical mixing cover is circle
Cylindricality, the radius of the optical mixing cover is R2, meet：R1=R2。
4. luminous intensity distribution module according to claim 1, it is characterised in that multiple LED/light sources are with circumference array arrangement, institute
The maximum radius for stating circumference array is r, along the height H that the beam projecting direction of the LED/light source is optical mixing cover, the optical mixing cover
Height H meet：1.2255r≤H ＜ 4r.
5. luminous intensity distribution module according to claim 4, it is characterised in that the height H=1.2255r of the optical mixing cover.
6. luminous intensity distribution module according to claim 4, it is characterised in that the value model of maximum radius r of the circumference array
Enclose for 2.4mm～9.5mm.
7. luminous intensity distribution module according to claim 1, it is characterised in that multiple LED/light sources are with rectangular array arrangement, phase
The center distance of adjacent two LED/light sources is d, along the height H that the beam projecting direction of the LED/light source is optical mixing cover, institute
The height H for stating optical mixing cover meets：D≤H ＜ 4d.
8. luminous intensity distribution module according to claim 7, it is characterised in that the height H of the optical mixing cover is described with two neighboring
Center distance d of LED/light source is equal.
9. luminous intensity distribution module according to claim 7, it is characterised in that center distance d of the two neighboring LED/light source
Span is 3.3mm～12.8mm.
10. luminous intensity distribution module according to claim 1, it is characterised in that the optical mixing cover adopts high reflection plastic production.
11. luminous intensity distribution modules according to claim 1, it is characterised in that the surface of the optical mixing cover is using science and engineering at sub- light
Skill.
12. luminous intensity distribution modules according to claim 1, it is characterised in that the surface of the groove adopts transparent mirror finish
Or fine grinding sand is processed.
13. luminous intensity distribution modules according to claim 1, it is characterised in that the LED/light source is SMD LED/light sources.
14. a kind of light fixtures, it is characterised in that using the luminous intensity distribution module any one of the claims 1～13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611053000.3A CN106641752A (en) | 2016-11-25 | 2016-11-25 | Light distribution module and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611053000.3A CN106641752A (en) | 2016-11-25 | 2016-11-25 | Light distribution module and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106641752A true CN106641752A (en) | 2017-05-10 |
Family
ID=58811933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611053000.3A Pending CN106641752A (en) | 2016-11-25 | 2016-11-25 | Light distribution module and lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106641752A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469822A (en) * | 2018-05-10 | 2019-11-19 | 惠州雷士光电科技有限公司 | A kind of low-angle TIR lens system |
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| CN102654271A (en) * | 2011-03-04 | 2012-09-05 | 海洋王照明科技股份有限公司 | LED (light emitting diode) condenser lens |
| CN103672576A (en) * | 2012-09-13 | 2014-03-26 | 大连工业大学 | Modularized optical system of LED street lamp |
| CN203927731U (en) * | 2014-06-06 | 2014-11-05 | 邹凤强 | A kind of lens reflector |
| CN105221942A (en) * | 2015-10-28 | 2016-01-06 | 欧普照明股份有限公司 | A kind of lighting |
| CN105339827A (en) * | 2013-06-27 | 2016-02-17 | 皇家飞利浦有限公司 | Lighting device |
| CN105485557A (en) * | 2014-09-17 | 2016-04-13 | 欧普照明股份有限公司 | LED spot lamp |
| CN205451061U (en) * | 2015-12-05 | 2016-08-10 | 中山市华南理工大学现代产业技术研究院 | Integrated optical lens of free -form surface for LED motorcycle headlamp |
| CN206222005U (en) * | 2016-11-25 | 2017-06-06 | 宁波公牛光电科技有限公司 | A kind of luminous intensity distribution module and light fixture |
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2016
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654271A (en) * | 2011-03-04 | 2012-09-05 | 海洋王照明科技股份有限公司 | LED (light emitting diode) condenser lens |
| CN103672576A (en) * | 2012-09-13 | 2014-03-26 | 大连工业大学 | Modularized optical system of LED street lamp |
| CN105339827A (en) * | 2013-06-27 | 2016-02-17 | 皇家飞利浦有限公司 | Lighting device |
| CN203927731U (en) * | 2014-06-06 | 2014-11-05 | 邹凤强 | A kind of lens reflector |
| CN105485557A (en) * | 2014-09-17 | 2016-04-13 | 欧普照明股份有限公司 | LED spot lamp |
| CN105221942A (en) * | 2015-10-28 | 2016-01-06 | 欧普照明股份有限公司 | A kind of lighting |
| CN205451061U (en) * | 2015-12-05 | 2016-08-10 | 中山市华南理工大学现代产业技术研究院 | Integrated optical lens of free -form surface for LED motorcycle headlamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469822A (en) * | 2018-05-10 | 2019-11-19 | 惠州雷士光电科技有限公司 | A kind of low-angle TIR lens system |
| CN110469822B (en) * | 2018-05-10 | 2024-05-03 | 惠州雷士光电科技有限公司 | Small-angle TIR lens system |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 315300 Guanhaiwei Town Industrial Park, Cixi City, Ningbo City, Zhejiang Province, 258 Guanfu South Road, West District Applicant after: NINGBO BULL OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Address before: Cixi City, Zhejiang province made Kuanyan Town Village 315333 Ningbo City Applicant before: NINGBO BULL OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |
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Application publication date: 20170510 |