CN107023787A - light distribution element, light source module and lighting device - Google Patents
light distribution element, light source module and lighting device Download PDFInfo
- Publication number
- CN107023787A CN107023787A CN201710396648.9A CN201710396648A CN107023787A CN 107023787 A CN107023787 A CN 107023787A CN 201710396648 A CN201710396648 A CN 201710396648A CN 107023787 A CN107023787 A CN 107023787A
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- Prior art keywords
- distribution element
- light distribution
- exiting surface
- incidence surface
- central point
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- 238000004020 luminiscence type Methods 0.000 claims abstract description 48
- 239000000758 substrate Substances 0.000 claims description 23
- 238000000605 extraction Methods 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 5
- 210000002189 macula lutea Anatomy 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 210000000887 face Anatomy 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- 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
- F21S8/08—Lighting devices intended for fixed installation with a standard
- F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
-
- 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
- F21V15/00—Protecting lighting devices from damage
- F21V15/01—Housings, e.g. material or assembling of housing parts
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
- F21V23/023—Power supplies in a casing
-
- 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
- F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
- F21V5/004—Refractors for light sources using microoptical elements for redirecting or diffusing light using microlenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The embodiment of the invention discloses a kind of light distribution element, light source module and lighting device, light distribution element includes：Incidence surface, in smooth inner sunken face shape and forms host cavity for housing luminescence unit, and the incidence surface includes central point；Exiting surface, it is oppositely arranged in smooth convex outward and with the incidence surface, the exiting surface includes central point, the central point of the exiting surface and the central point in the vertical direction of incidence surface stagger, and the central point of the exiting surface aligns with positioned at luminescence unit in the vertical direction in the host cavity.Because incidence surface and exiting surface are that the central point in the vertical direction in smooth surface shape and two faces staggers in light distribution element, when luminescence unit aligns with the central point in the vertical direction of exiting surface, luminescence unit emitted light is after the processing of incidence surface and exiting surface, macula lutea is able to substantially control, it is ensured that the illuminating effect of lighting device.
Description
Technical field
The present invention relates to lighting technical field, more particularly to a kind of light distribution element, light source module and lighting device.
Background technology
At present, lighting device generally comprises light source module, the power supply module of electric power is provided to light source module and is supported and is somebody's turn to do
The matrix of light source module and power supply module.Light source module generally includes luminescence unit and is covered on luminescence unit light direction
Light distribution element, light distribution element can adjust the direction of luminescence unit emitted light, to realize the illumination to target area.
However, because current luminescence unit has technical bottleneck, the light positioned at luminescence unit beam angle edge often can
It is partially yellow, cause occur light macula lutea in lighting device institute illumination region, this light macula lutea seriously reduces the illumination of lighting device
Effect.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of light distribution element, light source module and lighting device, above-mentioned for solving
Problem.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of light distribution element, including：
Incidence surface, in smooth inner sunken face shape and forms host cavity for housing luminescence unit, the incidence surface bag
Include central point；
Exiting surface, is oppositely arranged in smooth convex outward and with the incidence surface, and the exiting surface includes central point,
The central point of the exiting surface and the central point in the vertical direction of incidence surface stagger, and the central point of the exiting surface is with being located at institute
Luminescence unit in the vertical direction in host cavity is stated to align.
It is preferred that, the central point of the incidence surface is the peak of the incidence surface, and the central point of the exiting surface is institute
State the peak of exiting surface.
It is preferred that, the incidence surface and exiting surface include being used for dividing the traverse and slitter line of four-quadrant, it is described enter
Smooth surface and exiting surface are in four-quadrant symmetrical.
It is preferred that, projected length in the horizontal plane, the traverse of the incidence surface is shorter than slitter line.
It is preferred that, projected length in the horizontal plane, the traverse of the exiting surface is longer than slitter line.
It is preferred that, projection in the horizontal plane, the traverse of the traverse of the incidence surface and the exiting surface is mutually put down
OK.
It is preferred that, projection in the horizontal plane, the spacing of the slitter line of the slitter line of the incidence surface and the exiting surface
Less than default line-spacing threshold value.
It is preferred that, projection in the horizontal plane, the slitter line coincidence of the slitter line of the incidence surface and the exiting surface.
It is preferred that, projection in the horizontal plane, the ratio of slitter line and traverse is more than the light extraction in the incidence surface
The ratio of traverse and slitter line in face.
It is preferred that, there is part position in projection in the horizontal plane, the edge at the edge of the incidence surface and the exiting surface
Put and be a little smaller than preset away from threshold value.
It is preferred that, there is part position in projection in the horizontal plane, the edge at the edge of the incidence surface and the exiting surface
Put a coincidence.
It is preferred that, the light distribution element is included around the bottom surface for being arranged at the incidence surface the week side of boss, and the bottom surface is in smooth
Shape.
It is preferred that, the light distribution element is included around the top surface for being arranged at the exiting surface the week side of boss, the top surface and bottom surface
It is arranged in parallel and is connected by side, forms installation portion.
It is preferred that, along the traverse of the exiting surface, thickness has between the incidence surface and exiting surface：Exiting surface center
The thickness of point and incidence surface is minimum, is in increase trend and symmetrical in the thickness of exiting surface central point both sides and incidence surface.
It is preferred that, along it is described enter light slitter line, thickness has between the incidence surface and exiting surface：Along the slitter line
In increase trend.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of light source module, including：
Substrate；
Luminescence unit, is arranged on the substrate；
Light distribution element as described in foregoing summary, the light distribution element is attached to the substrate and covers described luminous
Unit, the luminescence unit be located at the light distribution element host cavity in and with the central point in the vertical direction of the exiting surface
Alignment.
It is preferred that, the quantity of the light distribution element and luminescence unit is multiple, and the luminescence unit is arranged in array
In on the substrate, luminescence unit is provided with each light distribution element.
It is preferred that, the central point of incidence surface is identical with the offset direction of the central point of exiting surface in each light distribution element.
It is preferred that, spacing is identical between the light distribution element on colleague or same column.
It is preferred that, the substrate includes longitudinally, and the substrate includes the light source arranged successively along the longitudinally
Accommodating area and installing zone, the luminescence unit are arranged at the light source accommodating area.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of lighting device, including：
Power supply module；
At least one light source module as described in foregoing summary, the light source module is electrically connected with power supply module.
It is preferred that, the lighting device is street lamp.
It is preferred that, the lighting device also includes housing, and the power supply module and light source module are attached to the housing；Institute
State the vertical support arm that lighting device also includes connecting the main casing.
The technical scheme provided in an embodiment of the present invention more than, light distribution element that the embodiment of the present invention is provided, light
Incidence surface and exiting surface are the central points in smooth surface shape and two faces vertical in source module and lighting device, light distribution element
Stagger on direction, when luminescence unit aligns with the central point in the vertical direction of exiting surface, luminescence unit emitted light warp
After the processing for crossing incidence surface and exiting surface, macula lutea is able to substantially control, it is ensured that the illuminating effect of lighting device.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in invention, for those of ordinary skill in the art, are not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the stereogram of lighting device in an one exemplary embodiment of the invention.
Fig. 2 be an one exemplary embodiment of the invention in lighting device another angle stereogram.
Fig. 3 is the exploded view of lighting device in an one exemplary embodiment of the invention.
Fig. 4 is the partial schematic diagram of light source module in an one exemplary embodiment of the invention, and light source module now includes light
Learn element, luminescence unit and partial substrate.
Fig. 5 be Fig. 4 shown in light source module in optical element stereogram.
Fig. 6 is sectional view of the light source module on A-A directions shown in Fig. 4.
Fig. 7 is sectional view of the light source module on B-B directions shown in Fig. 4.
Fig. 8 forms hot spot by the light source module shown in Fig. 4 and existing light distribution element forms the comparison schematic diagram of hot spot.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, below in conjunction with of the invention real
The accompanying drawing in example is applied, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described implementation
Example only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, should all belong to protection of the present invention
Scope.
With reference to shown in Fig. 1 and Fig. 2, lighting device 1000 includes the light source module 100 and power supply module 200 being electrically connected with
(ginseng Fig. 3 shown in), power supply module 200 can obtain electric power from civil power or external connection battery bag, then by power transmission to light source module
100, light source module 100 emits beam after obtaining electric power, to illuminate predeterminable area.
In actual applications, light source module 100 and power supply module 200 can be respectively positioned on housing 300, lighting device 1000
Can be street lamp or other kinds of indoor lamp or outdoor lamp, the shape and material of housing 300 can be according to lighting devices
1000 type and application environment is selected.For example lighting device 1000 can elect street lamp as, then housing 300 can also basis
The conventional shape of street lamp is set.
In embodiments of the present invention, lighting device also includes vertical support arm (not shown), and vertical support arm is attached to bottom
The regions such as plate, road surface, when lighting device 1000 is street lamp, the vertical support arm is light pole.Housing 300 includes being used to match somebody with somebody
The installation tail end 310 of vertical support arm (not shown) is connect, it can be hollow tubular to install tail end 310, and civil power cable can pass through
Vertical support arm and the inside of installation tail end 310 are electrically connected with light source module 100 and power supply module 200.In actual use, pacify
Dress tail end 310 can be connected by modes such as screws with vertical support arm.
In actual applications, the quantity of light source module 100 can be arranged at least one；Power supply module 200 can include
The components such as current adjustment unit, over-current protecting unit, power supply module 200 can be SMD or plug-in type, herein
Do not repeat.
With reference to shown in Fig. 3, light source module 100 includes light distribution element 10, luminescence unit 20 and substrate 30.Substrate 30 is installed
To housing 300, the quantity of luminescence unit 20 is multiple and array arrangement on substrate 30, and the quantity of light distribution element 10 is equally set
Multiple and array arrangement is set on substrate 30, each light distribution element 10 covers at least one luminescence unit 20.Light distribution element 10
Between connected by same light transmissive material, in actual applications, quantity can be prepared in the way of integrated injection molding
Meet the light distribution element 10 of demand with layout.
In embodiments of the present invention, power supply module 200 also is located on substrate 30, by electrical components in substrate 30 with lighting
Unit 20 is electrically connected with.In actual applications, substrate 30 includes longitudinally and received along the light source that longitudinally is arranged successively
Hold area 31 and installing zone 32, luminescence unit 20 and light distribution element 10 are respectively positioned on light source accommodating area 31, and power supply module 200, which is located at, to be installed
Area 32.
With reference to shown in Fig. 4 and Fig. 5, in light source module 100, light distribution element 10 is mainly used in sending luminescence unit 20
Light carries out the regulation of angle and direction.Light distribution element 10 can use such as polycarbonate, polymethyl methacrylate
Prepared by the transparent materials such as PMMA, the size of light distribution element 10 can also be according to the application scenarios and lighting demand of light source module 100
Accommodation is carried out, be will not be described here.
Light distribution element 10 includes the incidence surface 11 and exiting surface 12 being oppositely arranged.Incidence surface 11 and exiting surface 12 are in smooth
Curved, i.e., do not have obvious deformation on incidence surface 11 and exiting surface 12, deformation here can be protuberance, depression or
Combination.Here " obvious deformation " can refer to the shape that deformation can be recognized by the human eye or finger touches out
Become or finger-type become the adjustment of the light of light distribution element 11 can be produced largely influence and cause illuminating effect by
Limit, does not refer to all types of deformation.Therefore, if the deformation on incidence surface 11 or exiting surface 12 does not interfere with light distribution element
11 when matching somebody with somebody light, it is believed that incidence surface 11 or exiting surface 12 are smooth；If the deformation on incidence surface 11 or exiting surface 12
It can not be can recognize that and come or finger touches out by human eye, it is also assumed that incidence surface 11 or exiting surface 12 are smooth.
In actual applications, how to judge whether above-mentioned deformation has influence on the luminous intensity distribution of light distribution element 11, can be by that will have
The light distribution element for having this deformation (can be the optimal luminous intensity distribution member that inventor is provided with the light distribution element for not possessing this deformation
Part product) make comparison in kind or emulation comparison, to determine the two light distribution effect difference whether in receptible scope.Here retouched
" scope of receiving " stated can be that inventor sets according to light scene or user's request, do not refer to any user or appoint
The universal standard what scene is applicable.It is, of course, also possible to be that can touch out by dependence test personnel's finger or human eye can
The deformation found out, can also assert that the incidence surface 11 or exiting surface 12 are rough.
In the present embodiment, incidence surface 11 is in inner sunken face shape and forms host cavity 13, and host cavity 13 is used to house luminous
Unit 20, the emitted light of luminescence unit 20 arrives at incidence surface 11 and projected again by exiting surface 12.Exiting surface 12 is in convex outward
Shape, the outer convex direction of exiting surface 12 is consistent with the indent direction of incidence surface 11.
In actual applications, incidence surface 11 and exiting surface 12 are substantially in spherical calotte shape." spherical calotte shape " herein
Can be obtained from a complete sphere internal cutting or several spherical calottes are spliced, it is only necessary to ensure into light
Face 11 and exiting surface 12 are smooth.
Light distribution element 10 also include positioned at the week side of boss of incidence surface 11 bottom surface 14, bottom surface 14 be burnishing surface, bottom surface 14 be used for
Substrate 30 is directly fitted, and light distribution element 10 is covered on luminescence unit 20, even if light distribution element 10 and substrate 30 are because of assembling
Problem and spacing is excessive, light is also only capable of projecting from light distribution element 10, prevents the adverse optical effect of such as crescent moon speck.
Light distribution element 10 also includes the top surface 15 positioned at the week side of boss of exiting surface 12, and top surface 15 and bottom surface 14 be arranged in parallel, and passes through side 16
Connect to form square installation portion.
Certainly, light source module 100 include multiple light distribution elements 10 when, these light distribution elements can together by screw,
The modes such as buckle are connected with substrate 30, or are connected with housing 300, and this is technology well known to those of ordinary skill in the art,
It will not be described here.
Fig. 6 is sectional view of the light source module of the part shown in Fig. 4 on A-A directions.Plane where A-A directions can be managed
Solve as horizontal plane, now light source module 100 is also disposed on horizontal plane.Below in conjunction with the sectional view shown in Fig. 3, it is described in detail into light
The shape of face 11 and exiting surface 12 in the horizontal plane.
Incidence surface 11 has into plain edge along 111, and exiting surface 12 has light extraction edge 121, enters plain edge along 111 and light extraction edge
121 describe the general shape of incidence surface 11 and exiting surface 12 respectively.By taking incidence surface 11 as an example, enter plain edge and reflect along 111 profile
The projection of incidence surface 11 in the horizontal plane, enter plain edge along 111 for it is circular when, then incidence surface 11 is spherical calotte, incidence surface 111
During for ellipse, then incidence surface 11 is part-ellipsoids.
In the present embodiment, enter plain edge part location point along 111 and light extraction edge 121 and be smaller than preset away from threshold
Value.This preset can be preset away from threshold value, for example, can be 1 millimeter or other values.In actual use, can be by
The very little that preset is set away from threshold value so that enter plain edge part location point along along 111 and light extraction edge 121 and essentially coincide or completely
Overlap.
Subsequently, the traverse and slitter line for dividing four-quadrant, traverse are included on incidence surface 11 and exiting surface 12
It is the line of cut of the lateral mid-point along incidence surface 11 or exiting surface 12, slitter line is along incidence surface 11 or exiting surface 12
Longitudinally middle position line of cut.It is worth noting that, traverse and slitter line are dummy line, for ease of subsequent detailed skill
Art scheme and introduce, the shape for limiting incidence surface 11 and exiting surface 12 can not be used for.
In the present embodiment, the incidence surface 11 and exiting surface 12 after cutting are in four-quadrant symmetrical.With incidence surface 11
Exemplified by four-quadrant symmetrical, then after showing that incidence surface 11 sequentially passes through horizontal partition and be longitudinally cutting, 4 parts are divided into,
Any two is axial symmetry or centrosymmetric in this 4 parts.For example：Part in the first and second quadrants is axle
Symmetrically, the part in first and third quadrant is centrosymmetric.
It is worth noting that：" four-quadrant symmetrical " herein and the absolute symmetry in mathematical meaning is not specific to, can also wrapped
Include the scope of near symmetrical.Still by taking incidence surface 11 as an example, it in 4 parts at least two is near symmetrical that can be, such as position
It is approximate axial symmetry in the part in the first and second quadrants, or the part in first and third quadrant is approximate center pair
Claim, it might even be possible to be that part in the first and second quadrants is approximate axial symmetry and the part in first and third quadrant
It is that approximate center is symmetrical.
For ease of description incidence surface 11 and the flat shape of exiting surface 12, incidence surface 11 is cut into the crosscutting of 4 quadrants
The projection of line and slitter line in the horizontal plane is set into light traverse 112 and enters light slitter line 113, and exiting surface 12 is cut
Traverse and slitter line projection in the horizontal plane into 4 quadrants is set to light extraction traverse 122 and light extraction slitter line
123。
In the present embodiment, being shorter in length than into light slitter line 113 for light traverse 112 is entered, i.e., incidence surface 11 is in horizontal plane
On projection be preferably ellipse or close to ellipse shape.Meanwhile, the length of light extraction traverse 122 is more than light extraction slitter line
The projection of 123, i.e. exiting surface 12 in the horizontal plane is preferably also ellipse or the shape close to ellipse.
It is preferred that, enter light slitter line 113 with enter light traverse 112 ratio be more than light extraction slitter line 123 and light extraction it is crosscutting
The ratio of line 122.So that incidence surface 11 is longer and narrower relative to exiting surface 12.
Enter light traverse 112 and light extraction traverse 123 is parallel to each other.It is worth noting that, being parallel to each other here, not
The decision being limited on data sense is parallel, can also include approximately parallel scope, will not be described here.Also, enter light to indulge
Default line-spacing threshold value is smaller than between tangent line 113 and light extraction slitter line 123, this default line-spacing threshold value can be set in advance
It is fixed, for example can be 1 millimeter or other values.In actual use, the very little that preset can be set away from threshold value so that enter light
Slitter line 113 and light extraction slitter line 123 are essentially coincided or are completely superposed.
Incidence surface 11 and exiting surface 12 are respectively provided with central point, and the central point is the centre position or extreme higher position of face type.
So that incidence surface 11 and exiting surface 12 are four-quadrant symmetricals as an example, then the projection of the central point in the two faces in the horizontal plane is
Enter light slitter line 113 and enter the intersection point and light extraction slitter line 123 of light traverse 112 and the intersection point of light extraction traverse 122.In this reality
Apply in example, incidence surface 11 and exiting surface 12 are respectively provided with central point and staggered in vertical direction, i.e., the line of the two is not vertical
Direction.
In embodiments of the present invention, along the traverse of the exiting surface, thickness has as follows between incidence surface and exiting surface
Relation：The thickness of the central point of exiting surface 12 and incidence surface 11 is minimum, in the central point both sides of exiting surface 12 and the thickness of incidence surface 11
In increase trend and symmetrically, i.e., the central point of exiting surface 12 is separation, and the thickness of both sides is incremented by and increasing degree is identical.
Fig. 7 is sectional view of the light source module 100 of the part shown in Fig. 4 on B-B directions.Plane where B-B directions can
To be interpreted as the vertical plane vertical with A-A directions, now light distribution element 10 is still disposed on horizontal plane.Below in conjunction with Fig. 4 institutes
The sectional view shown, is described in detail the shape of incidence surface 11 and exiting surface 12 on vertical plane.
In the present embodiment, along the slitter line of the incidence surface, thickness has between the incidence surface and exiting surface：Along institute
The slitter line for stating incidence surface is in increase trend.
The section of incidence surface 11 and the in the vertical direction of exiting surface 12 is substantially part circular or part-elliptical, section
On along substantially continuous camber line.In the present embodiment, incidence surface 11 and exiting surface 12 are four-quadrant symmetrical, incidence surface 11
Peak be its central point, the peak of exiting surface 12 is its central point.
In the present embodiment, luminescence unit 20 aligns with the central point in the vertical direction of exiting surface 12.Now, light single
Member 20 is located on the intersection point of the light extraction slitter line 123 of exiting surface 12 and light extraction traverse 122.
It is worth noting that：In embodiments of the present invention, " central point of luminescence unit 20 and exiting surface 12 is in vertical direction
The absolute alignment of upper alignment " not in mathematical meaning, luminescence unit 20 can also produce certain inclined with the central point of exiting surface 12
Move, the scope of this skew can be：Offset distance exists between the central point of the center of the luminescence unit and the exiting surface
The 20% of luminescence unit width, skew here can be any direction.For example, it may be offseting 0.55mm scopes toward side
It is interior.
If light distribution element 10 only covers a luminescence unit 20, it is only necessary to determine the size of the luminescence unit 20, if with
It is that luminescence unit 20 is moved along traverse direction, then its width is used as using the size of luminescence unit 20 on traverse direction.
If light distribution element 10 covers multiple luminescence units 20, then the overall dimensions of these luminescence units 20 are obtained, are not done herein
Repeat.
Fig. 8 forms hot spot by the light source module shown in Fig. 4 and existing light distribution element forms the comparison schematic diagram of hot spot.
With reference to shown in Fig. 5, the emitted light of luminescence unit 20, can be away from incidence surface 11 after the processing of incidence surface 11 and exiting surface 12
Central point skew, i.e., towards the bigger light distribution element partial offset of thickness so that light is spread, so as to obtain hot spot
200, the width of the area of macula lutea 410 is enlarged in the hot spot 400.Relative to the hot spot of general light distribution element emitted light
The width of macula lutea 510 in 500, the area that light distribution element 10 forms macula lutea 510 is significantly larger so that the concentration of yellow light subtracts
It is low, so as to weaken macula lutea.
In embodiments of the present invention, the larger region of the thickness of light distribution element 10 forms the color tolerance of macula lutea and white light in hot spot
Difference is less than default value of chromatism.Default value of chromatism can be according to reception energy of the 1000 application area intra domain users of lighting device to aberration
Power or ethnic group characteristic are set, to ensure that it is light enough that the larger region of the thickness of light distribution element 10 forms macula lutea in hot spot, with
In the tolerance interval of family.In actual applications, the default value of chromatism is 4.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment was stressed is the difference with other embodiment.It is real especially for system
Apply for example, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method
Part explanation.
Embodiments of the invention are the foregoing is only, are not intended to limit the invention.For those skilled in the art
For, the present invention can have various modifications and variations.It is all any modifications made within spirit and principles of the present invention, equivalent
Replace, improve etc., it should be included within scope of the presently claimed invention.
Claims (23)
1. a kind of light distribution element, it is characterised in that including：
Incidence surface, in smooth inner sunken face shape and forms host cavity for housing luminescence unit, during the incidence surface includes
Heart point；
Exiting surface, is oppositely arranged in smooth convex outward and with the incidence surface, and the exiting surface includes central point, described
The central point of exiting surface and the central point in the vertical direction of incidence surface stagger, and the central point of the exiting surface positioned at described with receiving
Luminescence unit in the vertical direction aligns in cavity volume.
2. light distribution element as claimed in claim 1, it is characterised in that the central point of the incidence surface be the incidence surface most
High point, the central point of the exiting surface is the peak of the exiting surface.
3. light distribution element as claimed in claim 1, it is characterised in that the incidence surface and exiting surface include being used to divide four
The traverse and slitter line of quadrant, the incidence surface and exiting surface are in four-quadrant symmetrical.
4. light distribution element as claimed in claim 3, it is characterised in that projected length in the horizontal plane, the incidence surface
Traverse is shorter than slitter line.
5. light distribution element as claimed in claim 3, it is characterised in that projected length in the horizontal plane, the exiting surface
Traverse is longer than slitter line.
6. light distribution element as claimed in claim 3, it is characterised in that projection in the horizontal plane, the incidence surface it is crosscutting
The traverse of line and the exiting surface is parallel to each other.
7. light distribution element as claimed in claim 3, it is characterised in that projection in the horizontal plane, the rip cutting of the incidence surface
The slitter line of line and the exiting surface is smaller than default line-spacing threshold value.
8. light distribution element as claimed in claim 7, it is characterised in that projection in the horizontal plane, the rip cutting of the incidence surface
The slitter line of line and the exiting surface is overlapped.
9. rip cutting in light distribution element as claimed in claim 3, it is characterised in that projection in the horizontal plane, the incidence surface
The ratio of line and traverse is more than the ratio of traverse and slitter line in the exiting surface.
10. light distribution element as claimed in claim 1, it is characterised in that projection in the horizontal plane, the edge of the incidence surface
There is portion point with the edge of the exiting surface and be smaller than preset away from threshold value.
11. light distribution element as claimed in claim 10, it is characterised in that projection in the horizontal plane, the side of the incidence surface
Overlapped along there is portion point with the edge of the exiting surface.
12. light distribution element as claimed in claim 1, it is characterised in that the light distribution element includes entering described in circular be arranged at
The bottom surface of smooth surface the week side of boss, the bottom surface is flat.
13. light distribution element as claimed in claim 12, it is characterised in that the light distribution element includes going out described in circular be arranged at
The top surface of smooth surface the week side of boss, the top surface be arranged in parallel with bottom surface and is connected by side, to form installation portion.
14. light distribution element as claimed in claim 3, it is characterised in that along the traverse of the exiting surface, the incidence surface and
Thickness has between exiting surface：The thickness of exiting surface central point and incidence surface is minimum, in exiting surface central point both sides and incidence surface
Thickness in increase trend and symmetrically.
15. light distribution element as claimed in claim 3, it is characterised in that along it is described enter light slitter line, the incidence surface and go out
Thickness has between smooth surface：It is in increase trend along the slitter line.
16. a kind of light source module, it is characterised in that including：
Substrate；
Luminescence unit, is arranged on the substrate；
Light distribution element as described in any one in claim 1 to 15, the light distribution element is attached to the substrate and covered
The luminescence unit, the luminescence unit is located in the host cavity of the light distribution element and erected with the central point of the exiting surface
Nogata aligns upwards.
17. light source module as claimed in claim 16, it is characterised in that the light distribution element and the quantity of luminescence unit are
Multiple, the luminescence unit is arranged on the substrate in array, and luminescence unit is provided with each light distribution element.
18. light source module as claimed in claim 16, it is characterised in that the central point and light extraction of incidence surface in each light distribution element
The offset direction of the central point in face is identical.
19. light source module as claimed in claim 16, it is characterised in that between the light distribution element on colleague or same column
Away from identical.
20. light source module as claimed in claim 16, it is characterised in that the substrate includes longitudinally, the substrate bag
The light source accommodating area arranged successively along the longitudinally and installing zone are included, the luminescence unit is arranged at the light source and housed
Area.
21. a kind of lighting device, it is characterised in that including：
Power supply module；
At least one light source module as claimed in claim 16, the light source module is electrically connected with power supply module.
22. lighting device as claimed in claim 21, it is characterised in that the lighting device is street lamp.
23. lighting device as claimed in claim 21, it is characterised in that the lighting device also includes housing, the power supply
Module and light source module are attached to the housing；The lighting device also includes the vertical support arm for connecting the main casing.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710396648.9A CN107023787A (en) | 2017-05-27 | 2017-05-27 | light distribution element, light source module and lighting device |
| EP18808896.7A EP3564579B1 (en) | 2017-05-27 | 2018-05-24 | Light distribution element, light source module and lighting device |
| PCT/CN2018/088230 WO2018219211A1 (en) | 2017-05-27 | 2018-05-24 | Light distribution element, light source module and lighting device |
| US16/697,166 US10928034B2 (en) | 2017-05-27 | 2019-11-26 | Light distribution element, light source module and lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710396648.9A CN107023787A (en) | 2017-05-27 | 2017-05-27 | light distribution element, light source module and lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107023787A true CN107023787A (en) | 2017-08-08 |
Family
ID=59528499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710396648.9A Pending CN107023787A (en) | 2017-05-27 | 2017-05-27 | light distribution element, light source module and lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107023787A (en) |
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