CN108332116A - Integral type matches optical assembly, light source module group and lighting device - Google Patents
Integral type matches optical assembly, light source module group and lighting device Download PDFInfo
- Publication number
- CN108332116A CN108332116A CN201810259747.7A CN201810259747A CN108332116A CN 108332116 A CN108332116 A CN 108332116A CN 201810259747 A CN201810259747 A CN 201810259747A CN 108332116 A CN108332116 A CN 108332116A
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- China
- Prior art keywords
- light
- optical
- reflector
- optical assembly
- mixing cover
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
-
- 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
-
- 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
- F21V5/08—Refractors for light sources producing an asymmetric light distribution
-
- 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
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING 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
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The present invention provides a kind of integral types with optical assembly and includes light source module group and lighting device of the integral type with optical assembly.The integral type is applied to the secondary light-distribution of luminescence component, including integrally formed optical mixing cover and reflector with optical assembly.The inner surface of optical mixing cover or outer surface have carried out the processing of erosion line so that a part for the light that luminescence component is sent out is reflected back toward optical mixing cover and encloses the light mixing chamber for setting and being formed to achieve the effect that mixed light, so as to eliminate ghost problems of the plurality of LEDs as strip of light.The side wall of reflector includes having the outer surface of multiple broached-tooth designs continuously arranged as reflecting surface so that light, which is incident on sawtooth, forms total reflection, and second time electroplating is carried out to reflector without the later stage.In this way, integral type may be used and substitute the combination that traditional light mixing chamber adds reflector with optical assembly, not only saved infrastructure cost, but also reduce assembly cost.The present invention is suitable for using plurality of LEDs as in the shot-light of light source.
Description
Technical field
The present invention relates to technical field of semiconductor illumination, match optical assembly more particularly to a kind of integral type, including the one
Formula matches the light source module group of optical assembly, and the lighting device comprising the light source module group.
Background technology
LED (Light Emitting Diode, light emitting diode) shot-light currently on the market mostly uses COB (Chip On
Board, chip on board) it is used as light source.COB light source is advantageous in that the hot spot of lamps and lanterns is more uniform, is not in ghost image, but at
This is higher.If be easy on ground as light source since the hot spot that every LED is formed cannot be completely superposed using plurality of LEDs
Upper formation ghost image.In order to solve this problem, it will usually add a light mixing chamber in the top of LED light source.In the light of LED light source
Before line is incident on reflector, a mixed light is carried out by light mixing chamber, can solve the problems, such as ghost image.
However, in current field of LED illumination, the material of light mixing chamber is mostly to spread plastics, and reflector is then generally by gold
Belong to material or is formed in plastic surface galvanizing metal.Since the material of reflector and light mixing chamber is different, the two can not integrally at
Type.In this way, when using plurality of LEDs as light source, although ghost image can be eliminated by increasing light mixing chamber, reflector adds light mixing chamber
Framework not only makes the quantity of optical element increase, but also has loaded onto also mostly a procedure in the group of lighting device, so that
Infrastructure cost and assembly cost all increased.Therefore, a kind of integral type for the function being combined with reflector and light mixing chamber is developed
Optical element reduces infrastructure cost and assembly cost, becomes semiconductor lighting skill so that it can while solving ghost problems
One of art field urgent problem to be solved.
Invention content
In view of the above problems, it is proposed that the present invention overcoming the above problem in order to provide one kind or solves at least partly
The integral type for stating problem matches optical assembly, light source module group and lighting device.
One side according to the ... of the embodiment of the present invention provides a kind of integral type and matches optical assembly, is applied to the two of luminescence component
Secondary light distribution, described with optical assembly includes integrally formed optical mixing cover and reflector；
The reflector is annular in shape, and the reflector has side wall and light-emitting window, and the side wall, which encloses, sets the optics to be formed sky
Between be connected to the light-emitting window, the side wall has inner surface, outer surface, upper end and lower end, and the light-emitting window is located at
The inside of the upper end, the outer surface include multiple broached-tooth designs continuously arranged, the both ends of each broached-tooth design
Extend respectively to the upper end and the lower end；
The lower end integrally connected of the optical mixing cover and the reflector, by the side wall ring of the reflector around and extend into
Entering the optical space, the optical mixing cover has the inner surface and the outer surface, and the inner surface of the optical mixing cover, which encloses, to be set to form light mixing chamber,
The inner surface of the optical mixing cover or outer surface have carried out the processing of erosion line；
After the light that the luminescence component is sent out carries out mixed light by the light mixing chamber of the optical mixing cover, some light is incident on
It in the reflector, after broached-tooth design reflection, is emitted by the light-emitting window, to realize to the two of the luminescence component
Secondary light distribution.
Optionally, each broached-tooth design has the first reflecting surface and the second reflecting surface of intersection, first reflection
It is straight line or camber line that face and second reflecting surface intersection, which have crest line, the crest line,.
Optionally, it is mutually perpendicular between first reflecting surface and second reflecting surface, and the luminescence component is sent out
Light going out, being incident in the reflector is totally reflected in first reflecting surface and second reflecting surface.
Optionally, the inner surface of the reflector includes multiple micro-structures with arc surface.
Optionally, the upper end of the reflector forms the horizontal flanges that the outside of the oriented light-emitting window extends.
Optionally, the optical mixing cover is the arc mask being recessed to the light-emitting window direction, and the arc mask
Thickness is uniform.
Optionally, described with optical assembly further includes pedestal, and the optical mixing cover and the reflector are arranged at the pedestal
On.
Optionally, the integral type is formed with optical assembly by transparent plastic.
Optionally, the integral type passes through integrally formed with optical assembly.
Optionally, the inner surface of the optical mixing cover or the processing of the erosion line of outer surface in die surface by carrying out chemical attack
Or spark discharge is realized.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of light source module group, including：Integral type as described above
With optical assembly, and the luminescence component that is set in the light mixing chamber of the optical mixing cover；
For the light that the luminescence component is sent out after the light mixing chamber, some light penetrates the inner surface of the optical mixing cover
Enter the optical space with outer surface, another part is by the inner surface for having carried out the optical mixing cover that erosion line is handled or outside
Surface reflection returns the light mixing chamber, enters optics sky from the outer surface of the optical mixing cover after the light mixing chamber carries out mixed light
Between；
Some light into the optical space is directly emitted from the light-emitting window, and some light is through the reflector
Inner surface is incident to first reflecting surface, through first reflective surface to second reflecting surface, then through described second
It is emitted by the light-emitting window after reflective surface to the inner surface of the reflector.
Optionally, the luminescence component includes light source board and multiple luminescence units on the light source board.
Optionally, the multiple luminescence unit is multiple Light-emitting diode LED units.
It is according to the ... of the embodiment of the present invention in another aspect, provide a kind of lighting device again, include lamp body with open end,
The face ring being connect with the open end of the lamp body and the light source module group as described above being contained in the lamp body.
Optionally, the lighting device further includes optical element, and the optical element is set to the open end of the lamp body
And positioned at the inside of the face ring.
Optionally, the optical element is antiglare.
Optionally, the antiglare includes stepped main part and from the bottom surface of the main part to downward
The vertical portion stretched.
Optionally, the antiglare is set to the front end for matching optical assembly, the bottom surface of the main body of the antiglare and institute
The horizontal flanges for stating reflector abut against, and the vertical portion of the antiglare is abutted against with the lamp body.
Advantageous effect：Compared with prior art, integral type provided in an embodiment of the present invention includes being integrally formed with optical assembly
Optical mixing cover and reflector.The inner surface of optical mixing cover or outer surface have carried out the processing of erosion line so that the light that luminescence component is sent out
Part is reflected back toward optical mixing cover and encloses the light mixing chamber for setting and being formed to achieve the effect that mixed light, to eliminate plurality of LEDs as strip of light
The ghost problems come.The side wall of reflector includes having the outer surface of multiple broached-tooth designs continuously arranged as reflecting surface, is made
It obtains light and is incident on formation total reflection on sawtooth, second time electroplating is carried out to reflector without the later stage.The embodiment of the present invention
The integral type of offer can substitute the combination that traditional light mixing chamber adds reflector with optical assembly, not only save infrastructure cost, and
And reduce assembly cost, it is suitable for using plurality of LEDs as in the shot-light of light source.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, and in order to allow the above and other objects, features and advantages of the present invention can
It is clearer and more comprehensible, below the special specific implementation mode for lifting the present invention.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit are common for this field
Technical staff will become clear.Attached drawing only for the purpose of illustrating preferred embodiments, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 shows a kind of stereoscopic schematic diagram for light source module group that according to embodiments of the present invention 1 provides；
Fig. 2 is the sectional view along center line for the light source module group that the embodiment of the present invention 1 provides；
Fig. 3 is the light path schematic diagram for the light source module group that the embodiment of the present invention 1 provides；
Fig. 4 is the light path schematic diagram of the vertical direction by taking single broached-tooth design as an example of the embodiment of the present invention 1；
Fig. 5 is the light path schematic diagram of the horizontal direction by taking single broached-tooth design as an example of the embodiment of the present invention 1；
Fig. 6 is another light path schematic diagram of the horizontal direction by taking single broached-tooth design as an example of the embodiment of the present invention 1；With
And
Fig. 7 is a kind of sectional view along center line for lighting device that the embodiment of the present invention 2 provides.
Specific implementation mode
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.
Embodiment 1
As shown in Figures 1 to 6, an embodiment of the present invention provides a kind of light source module groups 100.
Figures 1 and 2 show that the stereoscopic schematic diagram of light source module group 100 according to the ... of the embodiment of the present invention and cuing open along center line
View, wherein in Fig. 1, in order to more clearly demonstrate the structure that the integral type in light source module group 100 matches optical assembly 10, shine
Component 20 is not shown.Referring to Fig. 1 and Fig. 2, light source module group 100 may include that integral type matches optical assembly 10 and luminescence component 20.This
In embodiment, integral type is applied to the secondary light-distribution of luminescence component 20 with optical assembly 10, including pedestal 11, setting are on the base 11
Optical mixing cover 12 and reflector 13, pedestal 11, optical mixing cover 12 and reflector 13 be integrally formed.Reflector 13 is annular in shape and transparent.
There is reflector 13 side wall 130 and light-emitting window 14, side wall 130 to enclose the optical space 15 for setting and being formed and are connected to light-emitting window 14.Side wall
130 there is inner surface 131, outer surface 132, upper end 133 and lower end 134, light-emitting window 14 to be located at the interior of upper end 133
Side, outer surface 132 include multiple broached-tooth designs 135 continuously arranged, and the both ends of each broached-tooth design 135 are respectively to upper end
133 and lower end 134 extend.134 integrally connected of lower end of optical mixing cover 12 and reflector 13, by the side wall 130 of reflector 13
It surround and extends into optical space 15.Optical mixing cover 12 has inner surface 121 and outer surface 122, the inner surface 122 of optical mixing cover 12
It encloses and sets to form light mixing chamber 120, the inner surface 121 of optical mixing cover 12 has carried out the processing of erosion line.The light that luminescence component 20 is sent out, passes through
After light mixing chamber 120 carries out mixed light, some light is incident in reflector 13, after the reflection of broached-tooth design 135, is gone out by light-emitting window 14
It penetrates, to realize the secondary light-distribution to luminescence component 20.
Below for the connection relation between each element and element in light source module group 100 provided in an embodiment of the present invention
It illustrates.
As shown in Figure 1 to Figure 3, pedestal 11 is annular plate, connects optical mixing cover 12 and reflector 13 thereon.Reflector 13 is set
It sets in the periphery of optical mixing cover 12, and the height of reflector 13 is higher than the height of optical mixing cover 12.It in practical applications, can be according to need
The shape of generatrix of the angle and reflector of wanting light distribution determines the ratio between the height of reflector 13 and the height of optical mixing cover 12
Example relationship.
Optical mixing cover 12 is the closed arc mask being recessed to the direction of light-emitting window 14, and thickness is uniform.Optical mixing cover 12 has
There are inner surface 121, outer surface 122 and light mixing chamber 120.Inner surface 121 has carried out erosion line processing (texturing), so as to
Incidence surface and reflecting surface as optical mixing cover 12 simultaneously, light-emitting surface of the outer surface 122 as optical mixing cover 12.Erosion line processing is also referred to as
Line processing is shone, is a kind of technique of die surface processing.It is handled by losing line, a variety of lines can be formed in product surface, from
And reach different optical effects.Can also be that outer surface 122 has carried out the processing of erosion line in other alternate embodiments,
At this point, incidence surface of the inner surface 121 only as optical mixing cover 12, and outer surface 122 then simultaneously as the reflecting surface of optical mixing cover 12 with
Light-emitting surface.
Optical mixing cover 12 is used to carry out mixed light processing to the light that luminescence component 20 is sent out so that the light that luminescence component 20 is sent out
Line be equably dissipated into reflector 13 enclose set the optical space 15 to be formed and finally from light-emitting window 14 be emitted, to eliminate ghost image.
In other alternate embodiments, optical mixing cover 12 can also be hemispherical mask, cylindrical mask etc., the present invention is not limited to
This.
Reflector 13 is lens ring, and thickness is uniform.Specifically, the side wall 130 of reflector 13 have inner surface 131,
Outer surface 132, upper end 133 and lower end 134, light-emitting window 14 are located at the inside of upper end 133.Lower end 134 and mixed light
Cover 12 and 11 integrally connected of pedestal.Upper end 133 forms the horizontal flanges 1331 that the outside of oriented light-emitting window 14 extends.Inner surface
131 be the incidence surface of reflector 13, while being also the light-emitting surface of reflector 13.Further include multiple continuous arrangements on inner surface 131
The micro-structure 1310 with arc surface micro-structure 1310 can not also be set in other alternate embodiments.Inner surface
131 can more accurately control the light-emitting angle of lighting device after surface micro-structure is handled, and ensure the uniform of light extraction.Appearance
Face 132 is equipped with multiple continuously arranged broached-tooth designs 135.Each broached-tooth design 135 includes that the first reflecting surface 136 and second is anti-
Face 137 is penetrated, and it can be straight line that the first reflecting surface 136 and the intersection of the second reflecting surface 137, which have crest line 138, the crest line 138,
It may be camber line.In a preferred embodiment, it is mutually perpendicular between the first reflecting surface 136 and the second reflecting surface 137, and
And the light in side wall 130 that luminescence component 20 is sent out, being incident on reflector 13 is in the first reflecting surface 136 and the second reflecting surface
137 are totally reflected.One end of each broached-tooth design 135 extends to the lower end 134 of reflector 13, and the other end extends to instead
The upper end 133 of emitter 13 so that certain reflection can be obtained when light is incident to the side wall 130.It is replaceable at other
Embodiment in, broached-tooth design 135 can not also extend to upper end 133 and lower end 134, and broached-tooth design 135 can also divide
Section is arranged in outer surface 132 so that is only totally reflected in the position for being provided with broached-tooth design 135.Optionally, the first reflecting surface
136 and second the angle of reflecting surface 137 can not also be 90 °, you can be less than or greater than 90 °, but the light efficiency of reflector 13
It is best in the case where the angle of the first reflecting surface 136 and the second reflecting surface 137 is 90 °, it can farthest realize total reflection.
Around this principle, we can be designed by the broached-tooth design 135 to reflector 13 is totally reflected to realize, so as to
Obtain the ideal beam angle of lighting device.
In the present embodiment, the bore of the lower end 134 of reflector 13 is less than the bore of light-emitting window 14, replaceable at other
Embodiment in, the bore of the lower end 134 of reflector 13 can also be equal to the bore of light-emitting window 14, i.e. reflector 13 is ring
Shape column, such structure can meet side wall 130 and realize total reflection, can also meet light and be emitted by light-emitting window 14.
Preferably, integral type is made up of transparent plastic of integrated injection molding with optical assembly 10, and wherein plastic material can
Select PMMA (Poly (methyl methacrylate), polymethyl methacrylate), PC (Polycarbonate, poly- carbonic acid
Ester) etc..By the method for surface chemical attack or spark discharge in injection mold, to realize the one of injection molding
Body formula matches the inner surface 121 of the optical mixing cover 12 in optical assembly 10 or the erosion line processing of outer surface 122, make erosion line treated in table
Face 121 or outer surface 122 show the lines of frosted, that is, form erosion line.Furthermore it is also possible to using other erosion line methods, such as
Laser loses line etc., and the invention is not limited thereto.
The thickness of reflector 13 is most thin to can be made into 2 millimeters (mm), therefore, can when the structure size of reflector 13 is very big
To save material cost and molding difficulty.In addition, it is necessary to explanation, in mold design or molding, due to machining accuracy
Problem can form fillet at the first reflecting surface 136 of reflector 13 and the intersection crest line 138 of the second reflecting surface 137, be incident on
Light on fillet goes out refraction to form stray light, but fillet is little on total light efficiency of reflector 13, beam angle influence, because
This, theoretically, reflector 13 is still considered a total-reflection type Transparent reflectors by us.
As shown in Figures 2 and 3, luminescence component 20 is set in light mixing chamber 120, including light source board 21 and be located at light source board 21
On multiple luminescence units 22.Multiple luminescence units 22 can be arranged according to modes such as array, circumferential arrangements on light source board 21,
The invention is not limited in this regard.Preferably, luminescence unit 22 is LED luminescence units.PCB (Printed can be used in light source board 21
Circuit Board, printed circuit board), it can further be integrated with driving power component of luminescence unit 22 etc. thereon, this is
The known technology of this field, details are not described herein.
In the following, the inner surface 121 in optical mixing cover 12 has carried out the processing of erosion line, the first reflecting surface 136 of reflector 13 and the
It is mutually perpendicular between two reflectings surface 137, and the light in side wall 130 that luminescence component 20 is sent out, being incident on reflector 13
In the case where the first reflecting surface 136 and the second reflecting surface 137 are totally reflected, in conjunction with Fig. 3 to Fig. 6 to light source module group 100
Interior light path trend is specifically described.It should be noted that simplify the explanation, schematically showing only position in figure 3
The light path for the light that luminescence unit 22 in middle position is sent out is moved towards.
As shown in figure 3, the light that luminescence unit 22 is sent out is after light mixing chamber 120, some light is out of optical mixing cover 12
After surface 121 transmits, it is refracted to the outer surface 122 of optical mixing cover 12 and encloses the optics sky set from outer surface 122 into reflector 13
Between 15.Under the action of the erosion line formed on inner surface 121, light mixing chamber then is reflected back by inner surface 121 for another part light
120, after reaching light source board 21, and it is reflected by light source board 21 inner surface 121 of optical mixing cover 12, at this point, a portion light
It is emitted from outer surface 122 through after inner surface 121, remaining light is reflected back light mixing chamber 120 by inner surface 121 again, so anti-
It is multiple so that light finally enters optical space 15 by multiple reflections from the outer surface of optical mixing cover 12 122.In light by inner surface
121 or light source board 21 reflect after by light mixing chamber 120 during, light that reflected light line can newly be sent out with luminescence unit 22
Line and other reflected light lines are mixed, to realize the effect of mixed light.Meanwhile on the inner surface 121 of optical mixing cover 12
The erosion line of formation also functions to the light transmitted from inner surface 121 the effect of dispersion.Finally so that the light that luminescence unit 22 is sent out
Line is equably dissipated into reflector 13 and encloses the optical space 15 for setting and being formed, when to eliminate multiple LED luminescence units as light source
Since hot spot cannot be completely superposed the ghost problems brought.In other alternate embodiments, can also be outer surface 122 into
Erosion line of having gone processing, at this point, incidence surface of the inner surface 121 only as optical mixing cover 12, and outer surface 122 is then used as optical mixing cover simultaneously
12 reflecting surface and light-emitting surface, it will be understood by those skilled in the art that in this case, mixed light principle and the sheet of optical mixing cover 12
Embodiment is similar, the difference is that only, part occurs at the outer surface of optical mixing cover 12 122 for the light that luminescence unit 22 is sent out
Transmission and part are reflected.
Light mentioned above is anti-on the inner surface 121 or outer surface 122 for having carried out the optical mixing cover 12 of erosion line processing
Ratio between the part penetrated and the part being transmitted is related with the light and heavy degree of erosion line processing, and the degree of erosion line processing is heavier,
The part then reflected is more, and the effect of mixed light is better, to also better to the eradicating efficacy of ghost image.Specifically, using institute's shape
At erosion line angle of flare come weigh erosion line processing light and heavy degree, angle of flare is bigger, then lose line processing degree it is heavier.The expansion
Scattered angle can obtain by the following method：Erosion line processing is carried out to the plank of specified material under specified requirements, then with a branch of
Directional light vertical irradiation loses line treated the plank, measures the diffusion angle by the light after the plank, is as formed
Erosion line angle of flare.Preferably, in the present embodiment, the angle of flare of line is lost between 3 degree to 15 degree.
A part into the light of optical space 15 is directly emitted from light-emitting window 14, and a part is incident on reflector 13
Inner surface 131 is emitted from light-emitting window 14 again after the reflection of side wall 130.Light is specially in the light path of 130 internal reflection of side wall：Light
Line is incident to a points of the first reflecting surface 136 on outer surface 132 by inner surface 131, and is totally reflected to the second reflecting surface 137
B points, return to inner surface 131 after the total reflection of the second reflecting surface 137, penetrated outward by light-emitting window 14 after the outgoing of inner surface 131
Go out.
Fig. 4 shows the light path schematic diagram of the vertical direction according to the ... of the embodiment of the present invention by taking single broached-tooth design as an example.
As shown in figure 4, for single broached-tooth design 135, from the point of view of the direction overlooked by light-emitting window 14, when light is incident on the first reflection
When a points on face 136, the b points of the second reflecting surface 137, then the b by the second reflecting surface 137 can be reflected to by total reflection principle
Point reflection and go out, last emergent ray and incident ray meet total reflection angular relationship.It is understood that be realized in lens interior
Total reflection, the incidence angle between light and reflecting surface have to be larger than or are equal to critical angle, and otherwise light will transmit away, critical
The size at angle can be different according to the material of lens.
Fig. 5 shows a kind of light path signal of the horizontal direction according to the ... of the embodiment of the present invention by taking single broached-tooth design as an example
Figure.It is mentioned above, since the mixed light of optical mixing cover 12 acts on so that the light that luminescence unit 22 is sent out can be from the outer of optical mixing cover 12
122 uniform of surface, that is, the outer surface 122 of optical mixing cover 12 can be considered uniform area source.By reflector in this present embodiment
13 be axis rotational symmetry structure, then the light being emitted from the center of the outer surface of optical mixing cover 12 122 is in reflector 13
Each position on surface 131, from horizontal direction from the point of view of be all perpendicular to inner surface 131, as shown in figure 5, at this point, light
Incidence angle is all 45 ° when reaching the first reflecting surface 136 and the second reflecting surface 137, can since incidence angle is more than critical angle
Realize total reflection.
And the light of the other positions outgoing from the outer surface of optical mixing cover 12 122 in addition to center is incident on inner surface
Then there is certain incident angle α when 1311, as shown in fig. 6, light reaches the first reflection of broached-tooth design 135 through superrefraction again at this time
When face 136, incidence angle becomes 45 ° and subtracts α1, that is to say, that incident angle becomes smaller, this makes the reality that can not ensure total reflection
Existing, the light being especially emitted from the marginal portion of the outer surface of optical mixing cover 12 122 is easier due to cannot be satisfied total reflection condition
And it is leaked from the outer surface of reflector 13 132.Lens made of different materials, admissible incident angle α1Range is not
Together, for lens made of PMMA, admissible α1≤ 4.4 °, for lens made of PC, admissible α1≤
9.5°.It, can be by reducing light mixing chamber 120 as possible under the premise of structure size allows in order to meet the condition of total reflection as possible
Light-emitting surface area, to make the light being emitted from the outer surface of optical mixing cover 12 122 be incident on the inner surface 131 of reflector 13
Incident angle α1It is small as far as possible.But light mixing chamber 120 too it is small will be unfavorable for eliminate ghost image therefore, can in practical operation
By selecting the optimal value of the light-emitting surface area of light mixing chamber 120, while making the close-packed arrays as possible of multiple luminescence units 22, thus
While ensureing to meet total reflection condition as possible, ensure the ghost problems brought when eliminating multiple luminescence units as light source.By
In broached-tooth design in the present embodiment be right angle faceted pebble, thus angle of emergence α2Equal to incident angle α1.In the structure of on-right angle faceted pebble
In, angle of emergence α2Relative to incident angle α1It can change and form different light efficiencies.
In conclusion it includes integrally formed optical mixing cover and reflector that light source module group provided in an embodiment of the present invention, which uses,
Integral type matches optical assembly.The inner surface of optical mixing cover or outer surface have carried out the processing of erosion line so that the light that luminescence component is sent out
A part is reflected back toward optical mixing cover and encloses the light mixing chamber for setting and being formed to achieve the effect that mixed light, to eliminate plurality of LEDs as light source
The ghost problems brought.The side wall of reflector includes having the outer surfaces of multiple broached-tooth designs continuously arranged as reflecting surface,
So that light, which is incident on sawtooth, forms total reflection, second time electroplating is carried out to reflector without the later stage.Pass through this side
Formula may be used integral type and substitute the combination that traditional light mixing chamber adds reflector with optical assembly, not only saved infrastructure cost, and
And reduce assembly cost, it is suitable for using plurality of LEDs as in the shot-light of light source.
Embodiment 2
According to same inventive concept, an embodiment of the present invention provides a kind of lighting devices 700, are a kind of DOB (Driver
On Board drive on plate) shot-light.Shown in Figure 7, lighting device 700 may include lamp body 50, face ring 40 and receiving
In the light source module group 100 described above in lamp body 50.
Below for the connection relation between each element and element in lighting device 700 provided in an embodiment of the present invention
It illustrates.
As shown in fig. 7, lamp body 50 is cylindric in the approximation of one end open comprising open end 501, side wall 502 and bottom wall
503, wherein side wall 502 includes the first part 502a being relatively large in diameter close to open end 501, straight far from the open end 501
The smaller second part 502b of diameter, and connect the round table-like transition portion of first part 502a and second part 502b
502c.Side wall 502 and bottom wall 503, which enclose, to be set to form host cavity 510.Lamp body 50 can be made of thermal conductive metallic materials such as aluminium, also may be used
To be integrally formed by heat conduction plastic cement or modeling alclad material, therefore lamp body 50 has high thermal conductivity.
Light source module group 100 is housed in host cavity 510.Specifically, light source module group 100 is matched including integral type described above
Optical assembly 10 and luminescence component 20.Luminescence component 20 is arranged in a manner of the bottom wall 503 for being close to lamp body 50.Therefore, when positioned at receipts
When the luminescence component 20 of light source module group 100 in vessel 510 generates heat, heat can be fast by the lamp body 50 of high thermal conductivity
Speed disperses, and influences the use quality and service life of luminescence component 20 to avoid the temperature in host cavity 510 excessively high.
Face ring 40 is connected with the open end 501 of lamp body 50.Face ring 40 can be made of metal material or plastics, and can
To use existing common structure.In the present embodiment, face ring 40 includes circular anchor ring 410, from the lateral border of anchor ring 410
In the lateral wall 411 of the vertical annular shape extended downwardly and the vertical annular shape extended downwardly from the interior lateral margin of anchor ring 410
The upper and lower surface of side wall 412, anchor ring 410 raises up and is formed the surface of class arc.Anchor ring 410, lateral wall 411 and madial wall
412 enclose and set to form an annular recess jointly.Face ring 40 can be connect by a variety of connection types with lamp body 50, for example buckle connects
Connect, screw connection, clamp spring connection etc., the invention is not limited in this regard.In other alternate embodiments, face ring 40 can also
It is integrally formed with lamp body 50, it is cost-effective the step of to reduce assembling.
Optionally, lighting device 700 can also include optical element 30.Optical element 30 is located at lamp body 50 in annular shape
Open end 501 at and positioned at face ring 40 inside, connect with fit system with the open end 501 of lamp body 50.In the present embodiment
In, optical element 30 plays the role of anti-dazzle.Specifically, optical element 30 is antiglare 30 comprising stepped master
Body portion 310 and the vertical portion 312 extended downwardly from main part 310.Shown in Figure 7, antiglare is set to one
Formula matches the front end (that is, light-emitting window end) of optical assembly 10, and the main part 310 of antiglare has flat bottom surface 311, bottom surface 311
It is abutted against with horizontal flanges 1331 of the integral type with the reflector 13 in optical assembly 10, antiglare is allow effectively to block from reflection
The dazzle that the edge of the light-emitting window of device 13 projects, to realize anti-dazzle light effect.The lateral surface of the main part 310 of antiglare is also
With groove 314, groove 314 and the first part 502a of the side wall 502 of lamp body 50 are connected, meanwhile, antiglare it is vertical
Part 312 and the medial surface of the first part 502a of the side wall 502 of lamp body 50 abut against, to realize antiglare in lamp body 50
Easy positioning at open end 501 and connection.
In addition, lighting device 700 provided in an embodiment of the present invention can also include radiating piece, connector, uniform light board etc. its
His component, the structure of these components and the known technology for being connected as this field, details are not described herein.
Lighting device provided in an embodiment of the present invention is matched using the integral type including integrally formed optical mixing cover and reflector
Optical assembly is that luminescence component carries out secondary light-distribution.The inner surface of optical mixing cover or outer surface have carried out the processing of erosion line so that shine group
A part for the light that part is sent out is reflected back toward optical mixing cover and encloses the light mixing chamber for setting and being formed to achieve the effect that mixed light, to which elimination is more
Ghost problems of the LED as strip of light.The side wall of reflector includes the appearance for having multiple broached-tooth designs continuously arranged
Face is as reflecting surface so that light, which is incident on sawtooth, forms total reflection, and secondary electricity is carried out to reflector without the later stage
Plating.In this way, integral type may be used and substitute the combination that traditional light mixing chamber adds reflector with optical assembly, not only save
Infrastructure cost, and reduce assembly cost.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that the implementation of the present invention
Example can be put into practice without these specific details.In some instances, well known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this description.
Embodiment described above has carried out further specifically the purpose of the present invention, technical solution and advantageous effect
It is bright, it should be understood that the foregoing is merely exemplary embodiment of the present invention, be not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the protection of the present invention
Within the scope of.
Claims (18)
1. a kind of integral type matches optical assembly, it is applied to the secondary light-distribution of luminescence component, described with optical assembly includes integrally formed
Optical mixing cover and reflector；
The reflector is annular in shape, the reflector have side wall and light-emitting window, the side wall enclose set the optical space to be formed with
There is inner surface, outer surface, upper end and lower end, the light-emitting window to be located at described for the light-emitting window connection, the side wall
The inside of upper end, the outer surface include multiple broached-tooth designs continuously arranged, the both ends difference of each broached-tooth design
Extend to the upper end and the lower end；
The lower end integrally connected of the optical mixing cover and the reflector, by the side wall ring of the reflector around and extend into institute
Optical space is stated, the optical mixing cover has the inner surface and the outer surface, and the inner surface of the optical mixing cover, which encloses, to be set to form light mixing chamber, described
The inner surface of optical mixing cover or outer surface have carried out the processing of erosion line；
After the light that the luminescence component is sent out carries out mixed light by the light mixing chamber of the optical mixing cover, some light is incident on described
In reflector, after broached-tooth design reflection, it is emitted by the light-emitting window, the secondary of the luminescence component is matched to realize
Light.
2. according to claim 1 match optical assembly, wherein each broached-tooth design have intersection the first reflecting surface and
It is straight line or camber line that second reflecting surface, first reflecting surface and second reflecting surface intersection, which have crest line, the crest line,.
3. according to claim 2 match optical assembly, wherein between first reflecting surface and second reflecting surface mutually
Vertically, and light that the luminescence component is sent out, being incident in the reflector is in first reflecting surface and described
Two reflectings surface are totally reflected.
4. according to claim 1 match optical assembly, wherein the inner surface of the reflector includes multiple with arc surface
Micro-structure.
5. according to claim 1 match optical assembly, wherein the upper end of the reflector forms the oriented light-emitting window
The horizontal flanges that outside extends.
6. according to claim 1 match optical assembly, wherein the optical mixing cover is the arc being recessed to the light-emitting window direction
Mask, and the thickness of the arc mask is uniform.
7. according to claim 1 match optical assembly, wherein described with optical assembly further includes pedestal, the optical mixing cover and institute
Reflector is stated to be arranged on the pedestal.
8. according to claim 1 match optical assembly, wherein the integral type is formed with optical assembly by transparent plastic.
9. according to claim 1 match optical assembly, wherein the integral type is with optical assembly by being integrally formed.
10. according to claim 9 match optical assembly, wherein the inner surface of the optical mixing cover or the erosion line processing of outer surface
By carrying out chemical attack or spark discharge realization in die surface.
11. a kind of light source module group, including：Integral type according to any one of claim 1-10 matches optical assembly, Yi Jishe
The luminescence component being placed in the light mixing chamber of the optical mixing cover；
The light that the luminescence component is sent out is after the light mixing chamber, and some light is through the inner surface of the optical mixing cover and outer
Surface enters the optical space, and another part is by the inner surface for having carried out the optical mixing cover that erosion line is handled or outer surface
It is reflected back the light mixing chamber, enters the optical space from the outer surface of the optical mixing cover after the light mixing chamber carries out mixed light；
Some light into the optical space is directly emitted from the light-emitting window, interior table of some light through the reflector
Face is incident to first reflecting surface, through first reflective surface to second reflecting surface, then through second reflection
Face is emitted after being reflected into the inner surface of the reflector by the light-emitting window.
12. light source module group according to claim 11, wherein the luminescence component include light source board and be located at the light source
Multiple luminescence units on plate.
13. light source module group according to claim 12, wherein the multiple luminescence unit is multiple Light-emitting diode LED
Unit.
14. a kind of lighting device, include lamp body with open end, the face ring that is connect with the open end of the lamp body, Yi Jishou
The light source module group according to any one of claim 11-13 being dissolved in the lamp body.
15. lighting device according to claim 14 further includes optical element, the optical element is set to the lamp body
Open end and positioned at the face ring inside.
16. lighting device according to claim 15, wherein the optical element is antiglare.
17. lighting device according to claim 16, wherein the antiglare include stepped main part and
The vertical portion extended downwardly from the bottom surface of the main part.
18. lighting device according to claim 17, wherein the antiglare is set to the front end for matching optical assembly,
The bottom surface of the main body of the antiglare and the horizontal flanges of the reflector abut against, the vertical portion of the antiglare with it is described
Lamp body abuts against.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810259747.7A CN108332116A (en) | 2018-03-27 | 2018-03-27 | Integral type matches optical assembly, light source module group and lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810259747.7A CN108332116A (en) | 2018-03-27 | 2018-03-27 | Integral type matches optical assembly, light source module group and lighting device |
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| Publication Number | Publication Date |
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| CN108332116A true CN108332116A (en) | 2018-07-27 |
Family
ID=62932424
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810259747.7A Withdrawn CN108332116A (en) | 2018-03-27 | 2018-03-27 | Integral type matches optical assembly, light source module group and lighting device |
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| TWI692620B (en) * | 2019-09-04 | 2020-05-01 | 台達電子工業股份有限公司 | Optical reflective component and optical encoder using same |
| US11162820B2 (en) | 2019-09-04 | 2021-11-02 | Delta Electronics, Inc. | Optical reflective component and optical encoder using same |
| CN114087550A (en) * | 2021-04-29 | 2022-02-25 | 苏州极限深灰光电科技有限公司 | Optical system |
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Application publication date: 20180727 |