CN104654055A - Low glare and high power of LED (Light Emitting Diode) light source module - Google Patents

Low glare and high power of LED (Light Emitting Diode) light source module Download PDF

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Publication number
CN104654055A
CN104654055A CN201310589378.5A CN201310589378A CN104654055A CN 104654055 A CN104654055 A CN 104654055A CN 201310589378 A CN201310589378 A CN 201310589378A CN 104654055 A CN104654055 A CN 104654055A
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CN
China
Prior art keywords
light source
led
array
power
source module
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.)
Pending
Application number
CN201310589378.5A
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Chinese (zh)
Inventor
李晓艳
王玲玲
梁培
王乐
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China Jiliang University
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China Jiliang University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Jiliang University filed Critical China Jiliang University
Priority to CN201310589378.5A priority Critical patent/CN104654055A/en
Publication of CN104654055A publication Critical patent/CN104654055A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20Light sources comprising attachment means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/002Refractors for light sources using microoptical elements for redirecting or diffusing light
    • F21V5/004Refractors for light sources using microoptical elements for redirecting or diffusing light using microlenses
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/04Refractors for light sources of lens shape
    • F21V5/046Refractors for light sources of lens shape the lens having a rotationally symmetrical shape about an axis for transmitting light in a direction mainly perpendicular to this axis, e.g. ring or annular lens with light source disposed inside the ring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2101/00Point-like light sources

Abstract

The invention provides a low glare and high power of LED (Light Emitting Diode) light source module and belongs to the technical field of the high power LED application. An LED array light source is arranged at the bottom of a lamp holder with a radiator in a matched mode; the front end of the lamp holder is connected with a total reflection free curved surface composite lens and a micro lens array glare elimination light sheet in turn; the LED array light source is formed by a corresponding high-power LED chip array; the radiator is of a slotted fin structure and accordingly the heat generated by the high-power LED chip array can be emitted out efficiently; the total reflection free curved surface composite lens is formed by a cone, an aspheric surface and a composite parabolic surface through matching so as to collect the large angle of light emitted from the LED array light source; the micro lens array glare elimination light sheet is formed by a plurality of micro lenses through integration; every micro lens unit is a polygonal plano-convex lens; the convex surface is formed by a composite curved surface, an aspheric surface and a cone through matching. According to the low glare and high power of LED light source module, the reasonable distribution of the luminous flux is implemented and the glare is eliminated through every micro lens array unit and accordingly the power consumption of the integral LED light source module is greatly saved, the use cost is effectively reduced, the power consumption is low, the brightness is high, the service life is long, and the requirement of the light beam angle from 140 to 170 degrees can be implemented.

Description

A kind of low dazzle high-power LED light source module
Technical field
The invention belongs to the technical field of great power LED, be specifically related to a kind of low dazzle high-power LED light source module.
Background technology
Great power LED is applied to needing multiple integrated chip formation with the demand meeting total light flux of lighting field, but there are some obvious defects in the integrated Power LED lamps of current multi-chip: the bad LED luminous efficiency that causes of dispelling the heat is low, affects luminous intensity and the service life of LED simultaneously; After multi-chip is integrated, between each chip, gap, village, just produces hot spot in certain distance, forms non-uniform illumination; The LED of lighting field adopts high-brightness white-light LED, and light source directivity is high, easily produces dazzle.Traditional heat spreader structures ignores the impact on LED radiation processes and feature of LED actual environment and fitting structure, adopt very complicated heat sink structure, cause high cost, and the method for traditional solution dazzle and illumination unevenness uses conventional diffusion film, diffuser plate or carries out frosted to light fixture, atomization process, light deterioration of efficiency or dazzle can be brought to eliminate the problems such as not good, along with nowadays LED light source is in the extensive use of every field, therefore finds a kind of more effective scheme to solve the problem and LED seemed particularly important in the development in lighting field future.
Summary of the invention
In order to overcome the problem of great power LED heat radiation of existing in illumination application prior art bad and illumination unevenness and dazzle, the present invention aims to provide a kind of low dazzle high-power LED light source module scheme, by rational radiator structure and optical system, improve the overall light efficiency of light source module, eliminate dazzle, reduce energy consumption.
The low dazzle high-power LED light source module of described one, by LED array light source 1, lamp socket 2, disappear dazzle sheet 4 and radiator of total reflection compound lens 3 and microlens array forms 5, LED array light source 1 is equipped with bottom the lamp socket 2 of band radiator, position, lamp socket 2 front end is equipped with total reflection free form surface compound lens 3, and lamp socket 2 leading section connects microlens array successively and to disappear dazzle sheet, and LED array light source 1 is arranged by corresponding high-power LED array and forms.
The low dazzle high-power LED light source module of described one, is characterized in that the light that LED array light source (1) sends is adjusted to 10-20 degree by described total reflection free form surface compound lens (3).
The low dazzle high-power LED light source module of described one, it is characterized in that the described microlens array dazzle sheet (4) that disappears is made up of multiple compound curved surface lens arra, the profile of lens is regular polygons, and the number of regular polygon is 3-8, and the length on each limit is 0.05-0.15um.
The low dazzle high-power LED light source module of described one, it is characterized in that microlens array disappear dazzle sheet (4) by aspheric surface (a), the conical surface (b) coordinate form.
The low dazzle high-power LED light source module of described one, is characterized in that microlens array disappears dazzle sheet (4) by aspheric surface (a 1), the conical surface (b 1), aspheric surface (c 1) coordinate formation.
The present invention adopts LED array light source, through total reflection free form surface compound lens, utilize the total reflection surface of total reflection free form surface compound lens, realize the collection to high angle scattered light and adjustment, light angle is adjusted to 10 degree to 20 degree scopes, to disappear dazzle sheet through microlens array again, realize the reasonable distribution of great power LED luminous intensity, the efficiency of light energy utilization can be improved, eliminate dazzle, greatly save the power consumption of LED light source module, significantly reduce use cost, it is low in energy consumption, brightness is high, long service life, 140 degree to 170 degree beam angle requirement can be realized.
Accompanying drawing explanation
Fig. 1 is agent structure schematic diagram of the present invention;
Fig. 2, Fig. 3 are that microlens array disappears dazzle chip architecture schematic diagram;
The luminous intensity distribution plot of Fig. 4 embodiment 1;
The luminous intensity distribution plot of Fig. 5 embodiment 2;
In accompanying drawing: 1-LED array light source, 2-lamp socket, 3-are totally reflected free form surface compound lens, 4-microlens array disappears dazzle sheet, 5-slitted fin radiator, a-aspheric surface, the b-conical surface, a1-aspheric surface, the b1-conical surface, c1-aspheric surface.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described, and provide detailed description of the invention.
As shown in Figure 1, main body of the present invention comprises LED array light source (1), lamp socket (2), LED array light source (1) is arranged on flange-cooled lamp socket (2) bottom, the heat that LED array light source 1 produces can fall apart by fin effectively, make the operating temperature of whole light fixture in more suitable scope, improve the service life of LED array light source (1).Lamp socket (2) position, front end is equipped with total reflection compound lens (3), the light sent due to LED array light source (1) is generally angle pencil of ray forwards outgoing, central light strength is stronger, outwards weaken gradually, for improving the utilization rate of luminous energy, the present invention uses total reflection compound lens (3) to collect light beam, after utilizing the sidewall of these lens to be totally reflected portions incident light, penetrate through compound lens front surface again, by the half intensity angle of emergent ray adjustment 5 degree ~ 10 degree scopes, microlens array is finally adopted to disappear dazzle sheet (4), incident light is made to be shaped to the even light of wide viewing angle degree by each microlens array unit, realize the reasonable distribution of luminous flux, eliminate dazzle, and effectively improve the utilization rate of light.
Embodiment 1:LED array light source (1) is 4 × 2 array LEDs, and each LED luminescence chip is 1mm × 1mm, and general power is 8W, after adding silica gel packaging, can regard the light-emitting area of diameter 8mm as, half-intensity beam angle is 120 degree.After total reflection compound lens (3), the angle of light is 10 degree, microlens array disappear dazzle sheet (4) by 0.1mm × 0.1mm square planoconvex spotlight form, convex surface is made up of 2 basic sides, as shown in Figure 4,401 is sphere, radius of curvature is 0.15mm, 402 is the conical surface, and cone angle is 140 degree, and the regional diameter shared by the conical surface is 0.04mm, the beam distribution angle of this light source module as shown in Figure 4, luminous intensity curve can be found out, light beam is relatively more even to+70 degree scope inner glow intensities at-70 degree, illustrates that beam angle is within the scope of 140 degree.
Embodiment 2: array light source (1) is 5 × 2 array LEDs, each little luminescence chip is 1mm × 1mm, and general power is 10W, after adding silica gel packaging, can regard the light-emitting area of diameter 10mm as, and half-intensity beam angle is 120 degree.After total reflection compound lens (3), the angle of light is 10 degree, and the microlens array dazzle sheet (4) that disappears is that 0.1mm hexagon planoconvex spotlight is formed by the length of side, convex surface is made up of 3 basic sides, as shown in Figure 3, a1 is aspheric surface, and face shape equation of locus is:
Z = Cy 2 1 + 1 - ( 1 + K ) C 2 y 2 + A 1 y 4 + A 2 y 6 + A 3 y 8 , Optimum configurations is wherein
C=2.85mm -1, K=-4.15, A 1=2.36e-5mm -3, A 2=7.81e-7mm -5, A 3=-5.84e-10mm -7; B1 is the conical surface, cone angle is 165 degree, c1 is sphere, radius of curvature is 0.15mm, shared regional diameter is 0.03mm, and the beam distribution angle of this light source module as shown in Figure 5, luminous intensity curve can be found out, light beam is relatively more even to+75 degree scope inner glow intensities at-75 degree, illustrates that beam angle is within the scope of 150 degree.

Claims (4)

1. one kind low dazzle high-power LED light source module, comprise LED array light source (1), lamp socket (2), lamp socket (2) position, front end is equipped with total reflection free form surface compound lens (3), microlens array disappears dazzle sheet (4), lamp socket (2) rear end connects radiator (5), described LED array light source (1) is arranged by corresponding high-power LED chip and forms, and the light that LED array light source (1) sends is adjusted to 10-20 degree by described total reflection free form surface compound lens (3).
2. a kind of low dazzle high-power LED light source module as claimed in claim 1, the microlens array that it is characterized in that described in the LED dazzle sheet (4) that disappears is made up of multiple compound curved surface lens arra, the profile of lens is regular polygons, the number of regular polygon is 3-8, and the length on each limit is 0.05-0.15um.
3. a kind of low dazzle high-power LED light source module as claimed in claim 1, it is characterized in that microlens array disappear dazzle sheet (4) by aspheric surface (a), the conical surface (b) coordinate form.
4. a kind of low dazzle high-power LED light source module as claimed in claim 1, it is characterized in that microlens array disappear dazzle sheet (4) by aspheric surface (a1), the conical surface (b1), aspheric surface (c1) coordinate form.
CN201310589378.5A 2013-11-20 2013-11-20 Low glare and high power of LED (Light Emitting Diode) light source module Pending CN104654055A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310589378.5A CN104654055A (en) 2013-11-20 2013-11-20 Low glare and high power of LED (Light Emitting Diode) light source module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310589378.5A CN104654055A (en) 2013-11-20 2013-11-20 Low glare and high power of LED (Light Emitting Diode) light source module

Publications (1)

Publication Number Publication Date
CN104654055A true CN104654055A (en) 2015-05-27

Family

ID=53245505

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310589378.5A Pending CN104654055A (en) 2013-11-20 2013-11-20 Low glare and high power of LED (Light Emitting Diode) light source module

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106369344A (en) * 2015-08-28 2017-02-01 中山市四维家居照明有限公司 Energy-saving lighting bulb
CN107388052A (en) * 2017-06-29 2017-11-24 广东洲明节能科技有限公司 LED energy-saving lamps

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106369344A (en) * 2015-08-28 2017-02-01 中山市四维家居照明有限公司 Energy-saving lighting bulb
CN107388052A (en) * 2017-06-29 2017-11-24 广东洲明节能科技有限公司 LED energy-saving lamps

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Application publication date: 20150527