CN105937749A - Light distribution element, light source assembly and lighting equipment - Google Patents
Light distribution element, light source assembly and lighting equipment Download PDFInfo
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- CN105937749A CN105937749A CN201610452880.5A CN201610452880A CN105937749A CN 105937749 A CN105937749 A CN 105937749A CN 201610452880 A CN201610452880 A CN 201610452880A CN 105937749 A CN105937749 A CN 105937749A
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- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides a light distribution element. The light distribution element comprises a diffusion structure used for diffusing light rays emitted by light sources and a light deflection structure used for deflecting light rays emitted by the light sources. The diffusion structure comprises a first incident plane, a first emergent plane and a first supporting plane. The first incident plane and the first emergent plane are connected to the first supporting plane. The first incident plane is a smooth curved surface, and the included angle between the tangent plane of the first incident plane and the horizontal plane where the light sources are located is increased firstly and thereafter decreased in the direction gradually away from the horizontal plane where the light sources are located. By the adoption of the light distribution element, a light source assembly and lighting equipment, the diffusion effect and the light deflection effect can be achieved at the same time; and in the anti-clockwise direction of the angle of the light rays emitted by the light sources, the larger the light-emitting angle of the light rays is, the denser the light rays emitted by the light distribution element is, the stronger the lighting intensity is, and accordingly the effect that the overall brightness of the lighting equipment with the light distribution element is uniform is guaranteed.
Description
Technical field
The present invention relates to field of semiconductor illumination, particularly relate to a kind of light distribution element, light source assembly and photograph
Bright equipment.
Background technology
In recent years, along with improving constantly of people's energy-conserving and environment-protective consciousness, increasing people are more prone to
Use LED illumination device because its to have service life long, safety and environmental protection, energy consumption is relatively low and luminous effect
The high irreplaceable advantage of rate.
Some luminaires on existing market, such as lamp affixed to the ceiling, it is common that add expansion outside LED light source
The mode dissipating face shield realizes illumination, and the light using this light emitting species easily to make luminaire send produces
Granular sensation.Therefore, the light sent in order to avoid luminaire produces granular sensation, and prior art is shone in design
Bright device procedures would generally reserve bigger distance between diffusion face shield and LED light source, and spread
The relatively conference of distance between face shield and LED light source causes luminaire entirety the thickest.Additionally, use this
Light emitting species also can increase the fabric swatch area of LED, thus increases the production cost of luminaire.
Summary of the invention
In view of the above problems, it is proposed that the present invention is to provide one to overcome the problems referred to above or at least in part
Solve a kind of light distribution element, light source assembly and the luminaire of the problems referred to above.
According to an aspect of the present invention, it is provided that a kind of light distribution element, including the light for light source is sent
The diffusion structure being diffused and the light for sending light source carry out the structure of polarized light of deviation, wherein,
Described diffusion structure includes first plane of incidence, the first exit facet and the first supporting surface, and described first enters
Penetrate face and described first exit facet is respectively connecting to described first supporting surface；
Described first exit facet is the smooth surface recessed away from described light source direction, described first exit facet away from
It is more than 1 with the ratio of the width of described first supporting surface from the ultimate range of described light source place horizontal plane；
Described structure of polarized light include second plane of incidence, the 3rd plane of incidence, the second supporting surface, the first fully reflecting surface,
At least one second fully reflecting surface and at least one the second exit facet, described second plane of incidence is respectively connecting to
Described first plane of incidence and described 3rd plane of incidence, it is incident that described second supporting surface is respectively connecting to the described 3rd
Face and described first fully reflecting surface；
Described first plane of incidence and described second the plane of incidence connect the first boundary line and described first exit facet
And the second boundary line of being connected between the second exit facet of described first exit facet is parallel, and described first
Boundary line and described second boundary line optical axis with described light source respectively intersects；
The Part I light that described light source sends enters to inject described light distribution element through described 3rd plane of incidence,
And after first through described first fully reflecting surface, at least one second fully reflecting surface be all-trans be incident upon described at least one the
Two exit facets, and then outgoing after at least one second exit facet refraction described；
The Part II light that described light source sends enters to inject described light distribution element through described second plane of incidence,
And be all-trans through at least one second fully reflecting surface described and to be incident upon at least one second exit facet described, and then through institute
State outgoing after at least one second exit facet refraction.
Alternatively, the Part III light of described light source enters to inject described luminous intensity distribution unit through described first plane of incidence
Part, and outgoing after described first exit facet refraction.
Alternatively, the Part I light that described light source sends, according to the inverse time of the light angle that light source sends
Its angular range of pin direction is 0 degree of-60 degree；
The Part II light that described light source sends, the counter clockwise direction of the light angle sent according to light source its
Angular range is 60 degree of-90 degree；
The Part III light that described light source sends, the counter clockwise direction of the light angle sent according to light source its
Angular range is 90 degree of-180 degree.
Alternatively, described Part I light through described first fully reflecting surface be all-trans be incident upon described at least one the
The light of two fully reflecting surfaces is parallel with the optical axis of light source；
Described Part II light enters to inject light and the light of described light distribution element through described second plane of incidence
The optical axis in source is parallel.
Alternatively, the distance between described first boundary line and described second boundary line is not less than 1.5 millimeters.
Alternatively, first plane of incidence of described diffusion structure is smooth surface, and is being gradually distance from light source institute
On the direction of horizontal plane, the tangent plane of described first plane of incidence first increases with the angle of described light source place horizontal plane
Reduce after big；
Second plane of incidence of described structure of polarized light is the smooth surface towards described light source direction projection, and
It is gradually distance from the tangent plane of described second plane of incidence and described light source institute on the direction of described light source place horizontal plane
Angle at horizontal plane is gradually increased；
3rd plane of incidence of described structure of polarized light is a plane, and the angular range of the optical axis with described light source
It is 0 degree of-5 degree.
Alternatively, the first fully reflecting surface of described structure of polarized light is recessed smooth of the optical axis away from described light source
Curved surface, and the tangent plane of described first fully reflecting surface and described optical axis on the direction being gradually distance from described optical axis
Angle be gradually reduced, its angular range be 0 degree-90 degree.
Alternatively, when described structure of polarized light includes multiple second fully reflecting surfaces and multiple second exit facet, institute
Stating multiple second fully reflecting surface and the plurality of second exit facet is combined into zigzag structure, one of them is second years old
Fully reflecting surface and second exit facet form sawtooth unit, one end of described zigzag structure and described diffusion
The first exit facet in structure connects, and the other end is connected with described first fully reflecting surface；
The second fully reflecting surface in described sawtooth unit and the second exit facet are planar structure, and both it
Between angular range be 0 degree-90 degree.
Alternatively, when described structure of polarized light includes multiple second fully reflecting surfaces and multiple second exit facet, institute
State structure of polarized light and also include joint face, for limiting between described zigzag structure and light source place horizontal plane
Distance；
Described first fully reflecting surface is connected to the other end of described zigzag structure by joint face.
Alternatively, when described structure of polarized light includes second fully reflecting surface and second exit facet, institute
State second fully reflecting surface and be respectively connecting to described first fully reflecting surface and one the second exit facet, institute
State second exit facet and be connected to described first exit facet；
One the second fully reflecting surface and one the second exit facet are planar structure, one
Two exit facets and the optical axis coincidence of described light source, and one the second exit facet is complete with one second
Angular range between reflecting surface is 0 degree of-90 degree.
According to a further aspect in the invention, a kind of light source assembly is additionally provided, including described light distribution element with many
Individual light source, first plane of incidence of light distribution element, second plane of incidence and the 3rd plane of incidence are formed along light distribution element
The receiving chamber that length direction extends, accommodates and accommodates the substrate arranged along the length direction accommodating chamber in chamber, many
Individual light source is evenly spaced on substrate along the length direction accommodating chamber.
In accordance with a further aspect of the present invention, a kind of luminaire is additionally provided, including at least two pieces of circuit substrates
Light source assembly described at least two groups and chassis, described at least two group light source assemblies pass through substrate thereon
Relative two sides that mirror image is arranged on chassis, so that the light alignment that described at least two group light source assemblies send
The direction deviation of the other side；
It is provided with face shield on described chassis, and described at least two group light source assemblies are contained in described face shield, with
Through described face shield outgoing after the light that at least two group light source assemblies described in making send direction deviation to each other.
In embodiments of the present invention, light distribution element includes diffusion structure and structure of polarized light, wherein, diffusion structure
First plane of incidence be smooth surface, and first incident on the direction being gradually distance from light source place horizontal plane
The tangent plane in face and the angle first increases and then decreases of light source place horizontal plane, thus the light angle sent at light source
Counter clockwise direction on, the rising angle of light is the biggest, and the light that light distribution element sends is the most intensive, illumination is strong
Spend the strongest, and then ensure that the luminaire overall brightness using this light distribution element is uniform.Additionally, diffusion junctions
The ultimate range of the first exit facet distance light source place horizontal plane of structure and the ratio of the width of the first supporting surface
More than 1, can make light distribution element more frivolous, save make material.It addition, the present invention is by by luminous intensity distribution
Element is designed to the form that structure of polarized light matches with diffusion structure, so that this light distribution element reaches simultaneously
Diffusion and the effect of polarisation.
Further, when structure of polarized light includes multiple second fully reflecting surfaces and multiple second exit facet, multiple
Second fully reflecting surface and multiple second exit facet are combined into zigzag structure, and this zigzag structure can effectively drop
The height that low light distribution element is overall, contributes to reducing face shield and the light source of the luminaire using this light distribution element
Between distance, not only save taking up room of luminaire, it is also possible to be prevented effectively from luminaire and send
Light produce granular sensation.Additionally, by least two group light source assemblies using the present invention are mounted opposite,
Make light that at least two group light source assemblies send direction deviation to each other, and between two groups of light source assemblies without
Circuit substrate is set, thus has saved the usable floor area of circuit substrate, reduce the production cost of light source assembly.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technology of the present invention
Means, and can being practiced according to the content of description, and in order to allow above and other objects of the present invention,
Feature and advantage can become apparent, below especially exemplified by the detailed description of the invention of the present invention.
According to below in conjunction with the accompanying drawing detailed description to the specific embodiment of the invention, those skilled in the art will
More understand the above-mentioned of the present invention and other purposes, advantage and feature.
Accompanying drawing explanation
By reading the detailed description of hereafter preferred implementation, various other advantage and benefit for ability
Territory those of ordinary skill will be clear from understanding.Accompanying drawing is only used for illustrating the purpose of preferred implementation, and also
It is not considered as limitation of the present invention.And in whole accompanying drawing, it is denoted by the same reference numerals identical
Parts.In the accompanying drawings:
Fig. 1 shows the structural representation of light distribution element according to an embodiment of the invention；
Fig. 2 shows the light path schematic diagram of the light of light distribution element according to an embodiment of the invention；
Fig. 3 shows that light source according to an embodiment of the invention is irradiated to the light path signal of luminaire face shield
Figure；
Fig. 4 shows the structural representation of light distribution element in accordance with another embodiment of the present invention；
Fig. 5 shows the structural representation of the light distribution element according to further embodiment of the present invention；
Fig. 6 shows the light path schematic diagram of the light of the light distribution element according to further embodiment of the present invention；
Fig. 7 shows the distribution curve flux figure of light distribution element according to an embodiment of the invention；
Fig. 8 shows the structural representation of light source assembly according to an embodiment of the invention；
Fig. 9 shows the upward view of the light source assembly according to embodiment illustrated in fig. 8；
Figure 10 shows the structural representation of light source assembly in accordance with another embodiment of the present invention；
Figure 11 shows the structural representation of another angle of the light source assembly according to embodiment illustrated in fig. 10；
Figure 12 shows the upward view of the light source assembly according to embodiment illustrated in fig. 10；And
Figure 13 shows the structural representation of luminaire according to an embodiment of the invention.
Detailed description of the invention
It is more fully described the exemplary embodiment of the disclosure below with reference to accompanying drawings.Although accompanying drawing shows
The exemplary embodiment of the disclosure, it being understood, however, that may be realized in various forms the disclosure and should be by
Embodiments set forth here is limited.On the contrary, it is provided that these embodiments are able to be best understood from this
Open, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
For solving above-mentioned technical problem, embodiments providing a kind of light distribution element, this light distribution element can
To be applied in the luminaire such as lamp affixed to the ceiling, lamp box.
As depicted in figs. 1 and 2, light distribution element 100 includes two parts, and a part is for for light source 1
The diffusion structure 10 that the light 2 gone out is diffused, emit beam at light source 12 the counter clockwise direction of angle
On, control the light 2 in the range of 90 degree of-180 degree that light source 1 sends；Another part is for for light source 1
The light 2 sent carries out the structure of polarized light 20 of deviation, emit beam at light source 12 the side counterclockwise of angle
Upwards, the light 2 in the range of 0 degree of-90 degree that light source 1 sends is controlled.Wherein, the material of light distribution element 100
Matter can be glass, polymethyl methacrylate (PMMA), Merlon (PC), epoxy resin (EP)
Deng translucent resin.
Seeing Fig. 1, diffusion structure 10 includes that first plane of incidence the 11, first exit facet 12 and first supports
Face 13, first plane of incidence 11 and the first exit facet 12 are respectively connecting to the first supporting surface 13.First outgoing
Face 12 is the smooth surface recessed away from light source 1 direction, in the side being gradually distance from light source 1 place horizontal plane
Upwards the tangent plane of the first exit facet 12 is gradually reduced with the angle of light source 1 place horizontal plane, the first exit facet
The ultimate range of 12 distance light source 1 place horizontal planes is more than 1 with the ratio of the width of the first supporting surface 13,
Such that it is able to make light distribution element 100 more frivolous, save make material.Diffusion junctions in the embodiment of the present invention
Structure 10 can make in the counter clockwise direction of light 2 angle that light source 1 sends, and the rising angle of light 2 is more
Greatly, the light 2 that light distribution element 100 sends is the most intensive, intensity of illumination is the strongest, and then ensure that this reality of use
The luminaire overall brightness of the light distribution element 100 executing example is uniform.
In this embodiment, diffusion structure 10 is designed to the inverse time of light 2 angle sent at light source 1
On pin direction, the rising angle of light 2 is the biggest, the purpose that light 2 that light distribution element 100 sends is the most intensive
Be the luminaire brightness uniformity ensureing to use this light distribution element 100, referring specifically to Fig. 2, Fig. 3 and
Light source 1 in luminaire emit beam 2 angle with in this angle the pass of the intensity of illumination of luminaire
It is formula: E=I*cos3θ/d2, wherein,
E is the intensity of illumination of luminaire；
I is the intensity of illumination of light source 1；
D is the light source 1 distance to the face shield 43 of luminaire；
θ be on face shield 43 difference to the angle (i.e. the rising angle of the light 2 of light source 1) at light source 1 center,
The rising angle scope of light 2 is 0 degree of-180 degree.
Owing to distance d of the face shield 43 of light source 1 to luminaire is constant, " cos3θ " value at 0 degree-180
It is gradually reduced along with the increase of angle in the range of degree, thus, it is ensured that the face shield 43 of luminaire exists
Intensity of illumination E of the brightness uniformity of each angle, i.e. luminaire is constant, needs to make the intensity of illumination of light source 1
I increases along with the increase of the rising angle θ of light 2.And in the light distribution element 100 of the embodiment of the present invention
Diffusion structure 10 light source 1 can be carried out secondary light-distribution so that intensity of illumination I of light source 1 is along with light
The increase of the rising angle θ of 2 and increase.
With continued reference to Fig. 1, structure of polarized light 20 includes second plane of incidence the 21, the 3rd plane of incidence 22, second
Support face the 23, first fully reflecting surface 24, at least one second fully reflecting surface 25 and at least one the second outgoing
Face 26.Wherein, second plane of incidence 21 is respectively connecting to first plane of incidence 11 and the 3rd plane of incidence 22, the
Two supporting surfaces 23 are respectively connecting to the 3rd plane of incidence 22 and the first fully reflecting surface 24.This structure of polarized light 20
First plane of incidence 11 of second plane of incidence the 21, the 3rd plane of incidence 22 and diffusion structure 10 is formed and is used for accommodating
The receiving chamber (not shown in figure 1) of light source 1.It addition, the second supporting surface 23 He of this structure of polarized light 20
The first supporting surface 13 in diffusion structure 10 is worked in coordination, to be used for supporting light distribution element 100.
In this embodiment, first plane of incidence 11 and second plane of incidence 21 are in the length along light distribution element 100
The the first boundary line (not shown in figure 1) connected on bearing of trend is joined with the first exit facet 12 with on edge
Be connected on the length bearing of trend of optical element 100 between second exit facet 26 of the first exit facet 12
Two boundary line (not shown in figure 1)s are parallel, and the first boundary line and the second boundary line respectively with light source 1
Optical axis 3 intersect.When light source 1 is multiple, when i.e. there are multiple optical axis 3, along light distribution element 100
Length bearing of trend on, multiple optical axises 3 intersect with the first boundary line and the second boundary line respectively.Additionally,
Smooth along the length bearing of trend of light distribution element 100 between first plane of incidence 11 and second plane of incidence 21
Transition.
With continued reference to Fig. 1 and Fig. 2, what light source 1 sent is positioned at the Part I light on the right side of light source 1 optical axis 3
Line 201, after the 3rd plane of incidence 22 enters to inject light distribution element 100, is first all-trans through the first fully reflecting surface 24
It is incident upon at least one second fully reflecting surface 25, then is all-trans through at least one second fully reflecting surface 25 and is incident upon at least
One the second exit facet 26, and then outgoing after at least one second exit facet 26 refraction；Light source 1 sends
The Part II light 202 on the right side of light source 1 optical axis 3 that is positioned at enter to inject luminous intensity distribution through second plane of incidence 21
Element 100, and be all-trans through at least one second fully reflecting surface 25 and be incident upon at least one second exit facet 26,
And then outgoing after at least one second exit facet 26 refraction.
In an alternate embodiment of the present invention, with continued reference to Fig. 2, what light source 1 sent is positioned at light source 1 optical axis
Part III light 203 on the left of in the of 3 enters to inject light distribution element 100 through first plane of incidence 11, and through first
Outgoing after exit facet 12 refraction.
In an embodiment of the present invention, seeing Fig. 4, the structure of polarized light 20 of light distribution element 100 includes multiple
Two fully reflecting surfaces 251 and multiple second exit facet 261, and the diffusion structure 10 and Fig. 1 of light distribution element 100
The diffusion structure 10 mentioned in illustrated embodiment is identical, at this for the light distribution element 100 in the present embodiment
Diffusion structure 10 do not repeat.
See Fig. 4 and foregoing embodiments, in embodiments of the present invention, multiple second fully reflecting surface 251 Hes
Multiple second exit facets 261 are combined into zigzag structure, and each second fully reflecting surface 251 is with adjacent second
One of exit facet 261 forms sawtooth unit, and one end of zigzag structure goes out with first in diffusion structure 10
Penetrating face 12 to connect, the other end and the first fully reflecting surface 24 connect.Wherein, second in sawtooth unit is all-trans
Penetrate face 251 and the second exit facet 261 is planar structure, and angular range between the two is 0 degree-90
Degree, wherein, the second exit facet 261 is 0 degree of-5 degree with the angular range of the optical axis 3 of light source 1.
With continued reference to Fig. 4, in this embodiment, first plane of incidence 11 of diffusion structure 10 is smooth surface,
And the tangent plane of first plane of incidence 11 and light source 1 institute on the direction being gradually distance from light source 1 place horizontal plane
Angle first increases and then decreases at horizontal plane.Second plane of incidence 21 of structure of polarized light 20 is located towards
The smooth surface of light source 1 direction projection, and on the direction being gradually distance from light source 1 place horizontal plane second
The tangent plane of the plane of incidence 21 is gradually increased with the angle of light source 1 place horizontal plane.The 3rd of structure of polarized light 20 enters
Penetrating face 22 is a plane, and is 0 degree of-5 degree with the angular range of the optical axis 3 of light source 1.Meanwhile, also
First fully reflecting surface 24 of structure of polarized light 20 can be designed as recessed smooth of the optical axis 3 away from light source 1
Curved surface, and the tangent plane of the first fully reflecting surface 24 and the folder of optical axis 3 on the direction being gradually distance from optical axis 3
Angle is gradually reduced, and its angular range is 0 degree of-90 degree.
In this embodiment, seeing Fig. 2 and Fig. 4, the light 2 that light source 1 sends is divided into three parts, bag
Include Part I light 201, the Part II light 202 being positioned on the right side of light source 1 optical axis 3 and be positioned at light source
Part III light 203 on the left of 1 optical axis 3.
Part I light 201 is after the 3rd plane of incidence 22 enters to inject light distribution element 100, first through first
Fully reflecting surface 24 total reflection is to multiple second fully reflecting surfaces 251, then is all-trans through multiple second fully reflecting surfaces 251
It is incident upon multiple second exit facet 261, and then outgoing after multiple second exit facet 261 refractions.
Part II light 202 enters to inject light distribution element 100 through second plane of incidence 21, and through multiple second
Fully reflecting surface 251 total reflection is to multiple second exit facets 261, and then reflects through multiple second exit facets 261
Rear outgoing.Further, Part II light 202 is through second plane of incidence 21, and Part I light 201 warp
After 3rd plane of incidence 22 and the first fully reflecting surface 24, arrive separately at the zigzag knot mentioned in foregoing embodiments
The second different fully reflecting surface 251 in structure, wherein, Part II light 202 is positioned in zigzag structure
The second fully reflecting surface 251 of position on the lower side, it is on the upper side that Part I light 201 is positioned in zigzag structure
Second fully reflecting surface 251 of position.
Part III light 203 enters to inject light distribution element 100 through first plane of incidence 11, and through the first outgoing
Outgoing after the refraction of face 12.
Further, it is possible to by regulating second plane of incidence 21 and curvature (the i.e. curve of the first fully reflecting surface 24
Curvature, for show curve deviation straight line degree) so that the Part I light 201 in the present embodiment
Optical axis 3 through first fully reflecting surface 24 total reflection light to multiple second fully reflecting surfaces 251 with light source 1
Parallel, Part II light 202 refracts to the light of multiple second exit facet 261 through second plane of incidence 21
Parallel with the optical axis 3 of light source 1, and then the emergent light after multiple second exit facet 261 refractions can be made relatively
For parallel.
In an alternate embodiment of the present invention, with continued reference to Fig. 2, light source 1 mentioned above send first
Some light 201, Part II light 202 and Part III light 203, send according to light source 1
Its angular range of counter clockwise direction of light 2 angle is respectively 0 degree of-60 degree, 60 degree of-90 degree and 90 degree
-180 degree.
Seeing Fig. 4, in embodiments of the present invention, structure of polarized light 20 can also include a joint face 27,
First fully reflecting surface 24 is connected to the other end of zigzag structure by this joint face 27, this joint face 27
For limiting the distance between zigzag structure and light source 1 place horizontal plane, the first outgoing can also be made simultaneously
The second boundary line between face 12 and the second exit facet 261 being connected to the first exit facet 12 is (in Fig. 4 not
Illustrate) distance away from light source 1 place plane be connected with first plane of incidence 11 and second plane of incidence 21
The difference of one boundary line (not shown in Fig. 4) distance away from light source 1 place plane is not less than 1.5 millimeters,
Avoid owing to the too short-range missile of the distance between the first boundary line and the second boundary line cause light distribution element 100 is damaged.
In an alternative embodiment of the invention, seeing Fig. 5, the structure of polarized light 30 of light distribution element 200 includes one
Second fully reflecting surface 252 and second exit facet 262, and the diffusion structure 10 of light distribution element 200, partially
Second plane of incidence the 21, the 3rd plane of incidence the 22, second supporting surface 23 and first in photo structure 30 is all-trans
Penetrate face 24 all identical, at this with the dependency structure of the light distribution element 100 in Fig. 1 and embodiment illustrated in fig. 4
For second plane of incidence in the diffusion structure 10 of the light distribution element 200 in the present embodiment, structure of polarized light 30
21, the 3rd plane of incidence the 22, second supporting surface 23 and the first fully reflecting surface 24 do not repeat.
See Fig. 5 and above embodiment illustrated in fig. 4, in this embodiment, second fully reflecting surface
252 are respectively connecting to the first fully reflecting surface 24 and second exit facet 262, second exit facet 262
The first exit facet 12 being connected in diffusion structure 10.Here, second fully reflecting surface 252 and one
Second exit facet 262 is planar structure, and second exit facet 262 overlaps with the optical axis 3 of light source 1,
And the angular range between second exit facet 262 and second fully reflecting surface 252 is 0 degree-90
Degree, the angular range of the first fully reflecting surface 24 and second fully reflecting surface 252 is 90 degree of-180 degree.
In embodiments of the present invention, seeing Fig. 5 and Fig. 6, the light 2 that light source 1 sends is divided into three parts,
Including the Part I light 211 being positioned on the right side of light source 1 optical axis 3, Part II light 212 be positioned at light
Part III light 213 on the left of source 1 optical axis 3.
Part I light 211 is after the 3rd plane of incidence 22 enters to inject light distribution element 200, first through first
Fully reflecting surface 24 is all-trans and is incident upon second fully reflecting surface 252, then is all-trans through second fully reflecting surface 252
It is incident upon second exit facet 262, and then outgoing after second exit facet 262 refraction.
Part II light 212 enters to inject light distribution element 200 through second plane of incidence 21, and through one second
Fully reflecting surface 252 is all-trans and is incident upon second exit facet 262, and then reflects through second exit facet 262
Rear outgoing.Further, Part II light 212 is through second plane of incidence 21, and Part I light 211 warp
After 3rd plane of incidence 22 and the first fully reflecting surface 24, arrive separately at the difference of second fully reflecting surface 252
Position, wherein, Part II light 212 is positioned at the second fully reflecting surface 252 position on the upper side, and first
Some light 211 is positioned at the second fully reflecting surface 252 position on the lower side.
Part III light 213 enters to inject light distribution element 200 through first plane of incidence 11, and through the first outgoing
Outgoing after the refraction of face 12.
Further, it is also possible to (i.e. bent by regulating the curvature of second plane of incidence 21 and the first fully reflecting surface 24
Curvature of a curve, for showing the degree of curve deviation straight line) so that the Part I light in the present embodiment
211 are all-trans the light that is incident upon second fully reflecting surface 252 optical axis with light source 1 through the first fully reflecting surface 24
3 is parallel, and Part II light 212 refracts to the light of second exit facet 262 through second plane of incidence 21
Parallel with the optical axis 3 of light source 1, and then the emergent light after second exit facet 262 refraction can be made relatively
For parallel.
Polarisation and expansion can be realized to more clearly embody light distribution element 100 in the embodiment of the present invention simultaneously
Dissipate, now provide the distribution curve flux figure of light distribution element 100, as it is shown in fig. 7, in the figure 7, horizontal coordinate value
Representing illumination intensity value, the coordinate figure on circumference represents the rising angle of light, it can be seen from figure 7 that
Rising angle has illumination intensity value between-90 degree are to 0 degree, it is seen then that the luminous intensity distribution in the embodiment of the present invention
Element can realize polarization effect.Through the rising angle of light that light distribution element sends when spending for 0 degree to-75,
The absolute value of angle is the biggest, and illumination intensity value is the biggest, according to the relational expression of the above-mentioned intensity of illumination mentioned:
E=I*cos3θ/d2 understands, and the present invention can realize the face shield using the luminaire of this light distribution element at each angle
The brightness uniformity of degree.Owing to the light utilization rate in actual applications in the range of-75 degree to-90 degree is relatively low, because of
This, in distribution curve flux figure, the intensity of illumination in the range of-75 degree to-90 degree is gradually lowered.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of light source assembly 300, this light sources
Part 300 can apply in the luminaire such as lamp affixed to the ceiling, lamp box.As shown in Figure 8 and Figure 9, light source assembly
300 include the light distribution element 100 as introduced in foregoing embodiments and multiple light source 1, light distribution element 100
First plane of incidence 11, second plane of incidence 21 and the 3rd plane of incidence 22 form the length side along light distribution element 100
To the receiving chamber 4 extended, accommodate and chamber 4 accommodates the substrate (figure arranged along the length direction accommodating chamber 4
In 8 and Fig. 9 the most not shown), multiple light sources 1 along accommodate chamber 4 length direction be evenly spaced on substrate.
Present invention also offers another kind of light source assembly 400, this light source assembly 400 can apply to ceiling
In the luminaire such as lamp, lamp box.As shown in Figure 10, Figure 11 and Figure 12, light source assembly 400 includes as above
The light distribution element 200 introduced in literary composition embodiment and multiple light source 1, first plane of incidence 11 of light distribution element 200,
Second plane of incidence 21 and the 3rd plane of incidence 22 form the receiving chamber of the length direction extension along light distribution element 200
4, accommodate and chamber 4 accommodates substrate (Figure 10, Figure 11 and the Tu arranged along the length direction accommodating chamber 4
In 12 the most not shown), multiple light sources 1 along accommodate chamber 4 length direction be evenly spaced on substrate.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of luminaire 500, such as Figure 13 institute
Showing, this luminaire 500 includes at least two groups light source assembly 300 as shown in Figure 8 and chassis 42, extremely
Relative two sides that few two groups of light source assemblies 300 are arranged on chassis 42 by substrate mirror image thereon,
So that the direction deviation of light alignment the other side that at least two group light source assemblies 300 send.
It is provided with face shield 43 on chassis 42, and at least two group light source assemblies 300 are contained in face shield 43, with
Make after light that at least two group light source assemblies 300 send direction deviation to each other through face shield 43 outgoing.?
In the embodiment of the present invention, the light source assembly 300 of luminaire 500 can also replace to as shown in Figure 10
Light source assembly 400, is not specifically limited at this.
So far, although those skilled in the art will appreciate that and the most detailed illustrate and describing the present invention's
Multiple exemplary embodiments, but, without departing from the spirit and scope of the present invention, still can be according to this
Disclosure of invention directly determines or derives other variations or modifications of many meeting the principle of the invention.Cause
This, the scope of the present invention is it is understood that and regard as covering other variations or modifications all these.
Claims (12)
1. a light distribution element (100), it is characterised in that include the light for light source (1) is sent
The diffusion structure (10) that line (2) is diffused and the light (2) for sending light source (1) are carried out
The structure of polarized light (20) of deviation, wherein,
Described diffusion structure (10) includes first plane of incidence (11), the first exit facet (12) and first
Supporting surface (13), described first plane of incidence (11) and described first exit facet (12) are respectively connecting to institute
State the first supporting surface (13)；
Described first exit facet (12) is the smooth surface recessed away from described light source (1) direction, described
First exit facet (12) supports with described first apart from the ultimate range of described light source (1) place horizontal plane
The ratio of the width in face (13) is more than 1；
Described structure of polarized light (20) include second plane of incidence (21), the 3rd plane of incidence (22), second
Support face (23), the first fully reflecting surface (24), at least one second fully reflecting surface (25) and at least one
Individual second exit facet (26), described second plane of incidence (21) is respectively connecting to described first plane of incidence (11)
With described 3rd plane of incidence (22), described second supporting surface (23) is respectively connecting to described 3rd plane of incidence
And described first fully reflecting surface (24) (22)；
The first boundary line that described first plane of incidence (11) and described second plane of incidence (21) connect and institute
State between the first exit facet (12) and the second exit facet (26) being connected to described first exit facet (12)
The second boundary line parallel, and described first boundary line and described second boundary line respectively with described light source (1)
Optical axis (3) intersect；
The Part I light (201) that described light source (1) sends is incident through described 3rd plane of incidence (22)
Enter described light distribution element (100), and first after through described first fully reflecting surface (24), at least one the
Two fully reflecting surfaces (25) are all-trans and are incident upon at least one second exit facet (26) described, so through described at least
Outgoing after one the second exit facet (26) refraction；
The Part II light (202) that described light source (1) sends is incident through described second plane of incidence (21)
Enter described light distribution element (100), and be all-trans through at least one second fully reflecting surface (25) described and be incident upon
At least one second exit facet (26) described, and then reflect through at least one second exit facet (26) described
Rear outgoing.
Light distribution element the most according to claim 1, it is characterised in that the 3rd of described light source (1)
Some light (203) enters to inject described light distribution element (100) through described first plane of incidence (11), and
Outgoing after described first exit facet (12) reflects.
Light distribution element the most according to claim 2, it is characterised in that
The Part I light (201) that described light source (1) sends, the light sent according to light source (1)
(2) its angular range of the counter clockwise direction of angle is 0 degree of-60 degree；
The Part II light (202) that described light source (1) sends, the light sent according to light source (1)
(2) its angular range of the counter clockwise direction of angle is 60 degree of-90 degree；
The Part III light (203) that described light source (1) sends, the light sent according to light source (1)
(2) its angular range of the counter clockwise direction of angle is 90 degree of-180 degree.
Light distribution element the most according to claim 1, it is characterised in that
Described Part I light (201) be all-trans be incident upon through described first fully reflecting surface (24) described at least
The light of one the second fully reflecting surface (25) is parallel with the optical axis of light source (1) (3)；
Described Part II light (202) enters to inject described luminous intensity distribution unit through described second plane of incidence (21)
The light of part (100) is parallel with the optical axis of light source (1) (3).
Light distribution element the most according to claim 1, it is characterised in that described first boundary line and institute
State the distance between the second boundary line not less than 1.5 millimeters.
Light distribution element the most according to claim 1, it is characterised in that
First plane of incidence (11) of described diffusion structure (10) is smooth surface, and is being gradually distance from light
The tangent plane of described first plane of incidence (11) and described light source (1) institute on the direction of source (1) place horizontal plane
Angle first increases and then decreases at horizontal plane；
Second plane of incidence (21) of described structure of polarized light (20) is towards described light source (1) direction projection
Smooth surface, and described second enter on the direction being gradually distance from described light source (1) place horizontal plane
The angle of the tangent plane and described light source (1) place horizontal plane of penetrating face (21) is gradually increased；
3rd plane of incidence (22) of described structure of polarized light (20) is a plane, and with described light source (1)
The angular range of optical axis (3) be 0 degree of-5 degree.
Light distribution element the most according to claim 1, it is characterised in that
First fully reflecting surface (24) of described structure of polarized light (20) is the optical axis away from described light source (1)
(3) recessed smooth surface, and described first be all-trans on the direction being gradually distance from described optical axis (3)
The angle of the tangent plane and described optical axis (3) of penetrating face (24) is gradually reduced, and its angular range is 0 degree of-90 degree.
Light distribution element the most according to claim 1, it is characterised in that when described structure of polarized light (20)
During including multiple second fully reflecting surfaces (251) and multiple second exit facet (261), the plurality of second complete
Reflecting surface (251) and the plurality of second exit facet (261) are combined into zigzag structure, and one of them is years old
Two fully reflecting surfaces (251) form sawtooth unit, described zigzag structure with second exit facet (261)
One end be connected with the first exit facet (12) in described diffusion structure (10), the other end and described first
Fully reflecting surface (24) connects；
The second fully reflecting surface (251) in described sawtooth unit and the second exit facet (261) are planar junction
Structure, and angular range between the two be 0 degree-90 degree.
Light distribution element the most according to claim 8, it is characterised in that when described structure of polarized light (20)
During including multiple second fully reflecting surfaces (251) and multiple second exit facet (261), described structure of polarized light (20)
Also include joint face (27)；
Described first fully reflecting surface (24) is connected to another of described zigzag structure by joint face (27)
End.
Light distribution element the most according to claim 1, it is characterised in that when described structure of polarized light (20)
During including second fully reflecting surface (252) and the second exit facet (262), one second is complete
Reflecting surface (252) is respectively connecting to described first fully reflecting surface (24) and one the second exit facet (262),
One the second exit facet (262) is connected to described first exit facet (12)；
One the second fully reflecting surface (252) and one the second exit facet (262) are planar junction
Structure, one the second exit facet (262) overlaps with the optical axis (3) of described light source (1), and institute
The angular range stated between second exit facet (262) and one the second fully reflecting surface (252) is
0 degree of-90 degree.
11. 1 kinds of light source assemblies (300), it is characterised in that including: as arbitrary in claim 1-10
Light distribution element (100) described in Xiang and multiple light source (1), first plane of incidence of light distribution element (100)
(11), second plane of incidence (21) and the 3rd plane of incidence (22) form the length along light distribution element (100)
The receiving chamber (4) that direction extends, accommodates the length direction along accommodating chamber (4) and sets in receiving chamber (4)
The substrate put, multiple light sources (1) are evenly spaced on substrate along the length direction accommodating chamber (4).
12. 1 kinds of luminaires (500), it is characterised in that including: at least two groups such as claim 11
Described light source assembly (300) and chassis (42), described at least two group light source assemblies (300) pass through
Relative two sides that substrate mirror image thereon is arranged on chassis (42), so that described at least two group light sources
The direction deviation of light alignment the other side that assembly (300) sends；
Face shield (43), and described at least two group light source assemblies (300) it are provided with on described chassis (42)
It is contained in described face shield (43), so that the light alignment that described at least two group light source assemblies (300) send
Through described face shield (43) outgoing after direction deviation each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610452880.5A CN105937749B (en) | 2016-06-21 | 2016-06-21 | Light distribution element, light source assembly and lighting equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610452880.5A CN105937749B (en) | 2016-06-21 | 2016-06-21 | Light distribution element, light source assembly and lighting equipment |
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| Publication Number | Publication Date |
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| CN105937749A true CN105937749A (en) | 2016-09-14 |
| CN105937749B CN105937749B (en) | 2022-09-16 |
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| CN201610452880.5A Active CN105937749B (en) | 2016-06-21 | 2016-06-21 | Light distribution element, light source assembly and lighting equipment |
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| Publication number | Publication date |
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| CN105937749B (en) | 2022-09-16 |
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