CN107893974A - Flux control member, light-emitting device and lighting device - Google Patents

Flux control member, light-emitting device and lighting device Download PDF

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Publication number
CN107893974A
CN107893974A CN201710930403.XA CN201710930403A CN107893974A CN 107893974 A CN107893974 A CN 107893974A CN 201710930403 A CN201710930403 A CN 201710930403A CN 107893974 A CN107893974 A CN 107893974A
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CN
China
Prior art keywords
light
control member
flux control
emitting component
optical axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710930403.XA
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Chinese (zh)
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CN107893974B (en
Inventor
筱原浩之
关晃伸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Enplas Corp
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Enplas Corp
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Filing date
Publication date
Priority claimed from JP2017182710A external-priority patent/JP2018061024A/en
Application filed by Enplas Corp filed Critical Enplas Corp
Publication of CN107893974A publication Critical patent/CN107893974A/en
Application granted granted Critical
Publication of CN107893974B publication Critical patent/CN107893974B/en
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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
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58—Optical field-shaping elements

Abstract

The present invention provides a kind of flux control member, while it is able to maintain that desired light distribution characteristic, suppresses the irregular colour as caused by light-emitting component.Flux control member has：The plane of incidence, the light projected from light-emitting component are incident；Two reflectings surface, being configured at across the plane of incidence position relative with the light-emitting component, makes to reflect to substantially vertical with the optical axis of the light-emitting component and reciprocal both direction respectively from a part for the incident light of the plane of incidence；And two exit facets, configured relative to one another across two reflectings surface, make to be projected to outside respectively from the light of two reflective surfaces.Multiple first raised lines are each configured with two exit facets, also, when from outgoing surface side, the crest line of multiple first raised lines and the optical axis of light-emitting component are almost parallel.

Description

Flux control member, light-emitting device and lighting device
Technical field
The present invention relates to flux control member, light-emitting device and lighting device.
Background technology
As the light source of lighting device or billboard etc., the light-emitting device with light-emitting components such as LED is used.Wherein, as The light source of fringing character type billboard with special shape etc., uses following light-emitting device：Make from light-emitting component project light to Reciprocal both direction reflection in the horizontal direction, and make light distribution characteristic that there is anisotropy (representing oval luminous intensity distribution).
As making light distribution characteristic that there is anisotropic light-emitting device, for example, it is luminous Patent Document 1 discloses one kind Device, as shown in figure 1, it has：Light-emitting component 12；Base station, make with reflector 14a, the reflector 14a from light-emitting component 12 light projected reflect upward；And flux control member 13 (being referred to as translucent resin in patent document 1), there is reflection Face 17, the reflecting surface 17 reflect the light projected from light-emitting component 12 or the light reflected by reflector 14a.In the light-emitting device In, the light projected from the top surface of light-emitting component 12 reaches the reflecting surface 17 of flux control member 13, and from the side of light-emitting component 12 The light that face is projected reaches the reflecting surface 17 of flux control member 13 after being reflected by reflector 14a.Moreover, reach flux control member These light directives of 13 reflecting surface 17 opposite directions in the horizontal direction, and from the exit facet of flux control member 13 19 (being referred to as side in patent document 1), were projected to outside.
As the light-emitting component for such light-emitting device, the light-emitting components such as LED are used.It is cheap and largely given birth to The most LED of production is following light-emitting component (SMD type light-emitting component)：With the illuminating part for for example sending blue light and Fluorophor, the fluorophor are covered around illuminating part, make to be transformed to white light from the blue light that illuminating part projects.
Citation
Patent document
The Japanese Unexamined Patent Publication 9-18058 publications of patent document 1
The content of the invention
The technical problems to be solved by the invention
In SMD type light-emitting component, easily become with the blue light that the larger angle of the optical axis relative to light-emitting component projects It is changed to white light.On the other hand, it is not easy to be transformed to the blue light projected relative to the less angle of the optical axis of light-emitting component white Coloured light, so as to easily to keep the state of blue light to project.When being not limited to such SMD type light-emitting component, but use During with according to the light-emitting device for projecting the light-emitting component that direction sends the different light of color and luster, there are the following problems：With relative In the region that the light that the less angle of the optical axis of light-emitting component projects is reached and with relative to the larger angle injection of optical axis The region that light is reached, easily produces irregular colour.
In light distribution characteristic is had anisotropic light-emitting device what is gone out as Patent Document 1, the irregular colour is more Significantly easily to produce.
As the method for the irregular colour for the light-emitting device for suppressing to go out as Patent Document 1, consider to Beam Control portion The exit facet 19 of part 13 is roughened.However, when the exit facet 19 to flux control member 13 has carried out roughening, from light The light that the exit facet 19 of beam control unit 13 projects can be scattered, and therefore, be not easy to carry out appropriate distribution controls.
Therefore, it is an object of the invention to provide a kind of flux control member, it is able to maintain that desired light distribution characteristic Meanwhile suppress the irregular colour as caused by light-emitting component.In addition, it is another object of the present invention to provide one kind to have the light The light-emitting device and lighting device of beam control unit.
For solving the scheme of technical problem
The Beam Control portion of the luminous intensity distribution for the light that flux control member involved in the present invention projects for control from light-emitting component Part, using following structure：That is, flux control member has：The plane of incidence, the light projected from light-emitting component are incident；Two reflectings surface, It is configured at the part point across the plane of incidence position relative with the light-emitting component, made from the incident light of the plane of incidence Do not reflected to substantially vertical with the optical axis of the light-emitting component and reciprocal both direction；And two exit facets, across Described two reflectings surface configure relative to one another, make to be projected to outside respectively from the light of described two reflective surfaces；Described Multiple first raised lines are each configured with two exit facets, also, when from the outgoing surface side, the multiple first is convex The optical axis of the crest line of bar and the light-emitting component is almost parallel.
Light-emitting device involved in the present invention uses following structure：That is, have：Light-emitting component and involved in the present invention Flux control member, the flux control member are configured to the plane of incidence and intersected with the optical axis of the light-emitting component.
Lighting device involved in the present invention uses following structure：That is, there are multiple light-emitting devices involved in the present invention And light diffusing board, the light diffusing board make from the light-emitting device project light diffusion while transmit.
Brief description of the drawings
Fig. 1 is the figure for the structure for showing conventional light-emitting device.
Fig. 2A, Fig. 2 B are the figures for the structure for showing the lighting device involved by embodiment 1.
Fig. 3 A, Fig. 3 B are the profiles of lighting device.
Fig. 4 is the enlarged fragmentary cross section for the part for being exaggerated Fig. 3 B.
Fig. 5 A to Fig. 5 C are the figures for the structure for showing the flux control member involved by embodiment 1.
Fig. 6 A to Fig. 6 C are the figures for the structure for showing the flux control member involved by embodiment 1.
Fig. 7 is the figure of one of the waveform for showing exit facet.
Fig. 8 A to Fig. 8 C are the figures for showing to compare the structure with flux control member.
Fig. 9 A be the flux control member for being shown with Fig. 8 A to Fig. 8 C it is comparison lighting device, on light diffusing board Colourity Y value analysis result curve map, Fig. 9 B are to show the lighting device, point of Illumination Distribution on light diffusing board Analyse the figure of result.
Figure 10 A be shown with flux control member A-1 to A-6 involved by embodiment 1 it is lighting device, in light The curve map of the analysis result of colourity Y value on diffusing panel, Figure 10 B are the lighting devices for being shown with flux control member A-1 , the figure of the analysis result of Illumination Distribution on light diffusing board, Figure 10 C are the illuminations for being shown with flux control member A-6 The figure of device, Illumination Distribution on light diffusing board analysis result.
Figure 11 A be shown with flux control member B-1 to B-4 involved by embodiment 1 it is lighting device, in light The curve map of the analysis result of colourity Y value on diffusing panel, Figure 11 B are the lighting devices for being shown with flux control member B-1 , the figure of the analysis result of Illumination Distribution on light diffusing board, Figure 11 C are the illuminations for being shown with flux control member B-3 The figure of device, Illumination Distribution on light diffusing board analysis result.
Figure 12 A be shown with flux control member C-3 to C-8 involved by embodiment 1 it is lighting device, in light The curve map of the analysis result of colourity Y value on diffusing panel, Figure 12 B are the lighting devices for being shown with flux control member C-3 , the figure of the analysis result of Illumination Distribution on light diffusing board, Figure 12 C are the illuminations for being shown with flux control member C-8 The figure of device, Illumination Distribution on light diffusing board analysis result.
Figure 13 A be shown with flux control member D-1 to D-4 involved by embodiment 1 it is lighting device, in light The curve map of the analysis result of colourity Y value on diffusing panel, Figure 13 B are the lighting devices for being shown with flux control member D-1 , the figure of the analysis result of Illumination Distribution on light diffusing board, Figure 13 C are the illuminations for being shown with flux control member D-4 The figure of device, Illumination Distribution on light diffusing board analysis result.
Figure 14 A be shown with flux control member C-1 to C-11 involved by embodiment 1 it is lighting device, The curve map of the analysis result of colourity Y value on light diffusing board, Figure 14 B are the illumination dresses for being shown with flux control member C-2 The figure of the analysis result of Illumination Distribution put, on light diffusing board, Figure 14 C are the photographs for being shown with flux control member C-9 The figure of bright device, Illumination Distribution on light diffusing board analysis result.
Figure 15 A be shown with flux control member E-1 to E-11 involved by embodiment 1 it is lighting device, The curve map of the analysis result of colourity Y value on light diffusing board, Figure 15 B are the illumination dresses for being shown with flux control member E-2 The figure of the analysis result of Illumination Distribution put, on light diffusing board, Figure 15 C are the photographs for being shown with flux control member E-9 The figure of bright device, Illumination Distribution on light diffusing board analysis result.
Figure 16 A to Figure 16 C are the figures for the structure for showing the flux control member involved by embodiment 2.
Figure 17 A to Figure 17 C are the figures for the structure for showing the flux control member involved by embodiment 2.
Figure 18 A are to show cuing open in the section of the optical axis L A comprising light-emitting component, flux control member G reflecting surface The curve map of face shape, Figure 18 B are shown in the section of the optical axis L A comprising light-emitting component, from the light beam with the second raised line The reflecting surface of the flux control member without the second raised line is subtracted in the design load of the section shape of control unit G reflecting surface Section shape design load result (Δ h1) curve map.
Figure 19 A be shown with flux control member G involved by embodiment 2 it is lighting device, in light diffusing board On colourity Y value analysis result curve map, Figure 19 B are to show the lighting device, the Illumination Distribution on light diffusing board Analysis result figure.
Figure 20 A to Figure 20 C are the figures for the structure for showing the flux control member involved by embodiment 3.
Figure 21 A to Figure 21 C are the figures for the structure for showing the flux control member involved by embodiment 3.
Figure 22 A to Figure 22 C are the figures for the structure for showing the flux control member involved by embodiment 4.
Figure 23 A to Figure 23 C are the figures for the structure for showing the flux control member involved by embodiment 4.
Figure 24 is the figure for the light path for showing the flux control member involved by embodiment 3.
Figure 25 be shown with flux control member H involved by embodiment 4 it is lighting device, on light diffusing board Illumination Distribution analysis result curve map.
Figure 26 is the top view for the other structures for showing the lighting device involved by embodiment 1.
Figure 27 A to Figure 27 C are the figures for the structure for showing the light-emitting device periphery shown in Figure 26.
Figure 28 is the enlarged partial isometric view for another other structures for showing the lighting device involved by embodiment 1.
Description of reference numerals
100：Lighting device
110：Housing
120、120’：Substrate
130：Light-emitting device
131：Light-emitting component
132：Flux control member
133：The plane of incidence
133a：First top surface
133b：Second top surface
133c：First side
133d：3rd top surface
133e：Second side
133f：3rd side
134：Reflecting surface
135：Exit facet
136：Flange part
137：Foot
138：Bottom surface
139：Recess
140：First raised line
141：Second raised line
142：3rd raised line
150：Light diffusing board
170：Cable
171：Ca(u)lk material
CA：Central shaft
LA：Optical axis
Embodiment
Hereinafter, embodiments of the present invention are described in detail referring to the drawings.
[embodiment 1]
(structure of lighting device)
Fig. 2A, 2B and Fig. 3 A, 3B are the figures for the structure for showing the lighting device 100 involved by embodiment 1.Fig. 2A is to shine The top view of bright device 100, Fig. 2 B are front views.Fig. 3 A are along the profile of the 3A-3A lines shown by Fig. 2 B, and Fig. 3 B are along figure The profile of 3B-3B lines shown by 2A.Fig. 4 is the enlarged fragmentary cross section for the part for being exaggerated Fig. 3 B.
As shown in Fig. 2A, 2B and Fig. 3 A, 3B, lighting device 100 has housing 110, substrate 120, multiple light-emitting devices 130 And light diffusing board 150.
Housing 110 is for storing substrate 120 and multiple light-emitting devices 130, face at least one inside it The case of the rectangular shape of fractional open.Housing 110 includes bottom plate, the top plate relative with bottom plate and connecting bottom board and top plate Four side plates.In top plate formed with the rectangular opening portion as light-emitting zone.The opening portion is by the envelope of light diffusing board 150 Close.Bottom plate and top plate configured in parallel.Although it is not particularly limited height (the space thickness from the surface of bottom plate to light diffusing board 150 Degree), but it is 20mm to 100mm or so.Also, housing 110 is for example by polymethyl methacrylate (PMMA) or makrolon Etc. (PC) metal such as resin or stainless steel or aluminium is formed.
Substrate 120 is configured on the bottom plate of housing 110, is to be used to configure multiple hairs at a prescribed interval in housing 110 The flat board of electro-optical device 130.The surface of substrate 120 is configured to, and makes to reflect to light diffusing board 150 from the light that light-emitting device 130 reaches.
Multiple light-emitting devices 130 are configured on substrate 120 (along the Y direction that will be described hereinafter) with wire.No Especially limit the number for the light-emitting device 130 being configured on substrate 120.Lighted according to as defined in the opening portion as housing 110 The size in region (light-emitting area), suitably setting are configured at the number of the light-emitting device 130 on substrate 120.
Multiple light-emitting devices 130 have light-emitting component 131 and flux control member 132 respectively.Multiple light-emitting devices 130 divide The optical axis (the optical axis L A for the light-emitting component 131 that will be described hereinafter) of light projected from light-emitting component 131 is not configured to Along relative to the normal to a surface of substrate 120.
Light-emitting component 131 is the light source of lighting device 100 (and light-emitting device 130).Light-emitting component 131 is configured at substrate On 120.Light-emitting component 131 is, for example, light emitting diode (LED).The luminous member included by light-emitting device 130 is not specially limited The color of the emergent light of part 131.In the present embodiment, SMD type light-emitting component, the SMD type light-emitting component tool can be used There are the illuminating part and fluorophor for for example sending blue light, the fluorophor is covered around the illuminating part, and makes to penetrate from illuminating part The blue light gone out is transformed to white light.
Flux control member 132 controls the luminous intensity distribution of the light projected from light-emitting component 131, is changed into the direct of travel of above-mentioned light The face direction of substrate 120, especially with respect to light-emitting component 131 optical axis L A is substantially vertical and reciprocal both direction. Flux control member 132 is configured at light-emitting component 131 in a manner of making central shaft CA consistent with the optical axis L A of light-emitting component 131 Above (reference picture 4)." the optical axis L A " of light-emitting component 131 refers to the three-dimensional outgoing beam projected from light-emitting component 131 Central ray." the central shaft CA " of flux control member 132 refers to for example secondary symmetrical symmetry axis.Below, can also will be with The direction that the optical axis L A of multiple light-emitting devices 130 is parallel is referred to as Z-direction, will be more in the plane vertical relative to Z-direction Individual light-emitting device 130 is referred to as Y direction with the direction of the linear alignment, by relative to the vertical plane of the Z-direction with Y-axis The orthogonal direction in direction is referred to as X-direction.
For the material of flux control member 132, as long as the light of desired wavelength can be made by being just not particularly limited. For example, the material of flux control member 132 is polymethyl methacrylate (PMMA) or makrolon (PC), epoxy resin (EP) Deng transmitance resin or glass.
Lighting device 100 involved by embodiment 1 has major technique special in the structure of flux control member 132 Sign.Therefore, flux control member 132 is described in detail in addition.
Light diffusing board 150 in a manner of closing the opening portion of housing 110 to configure.Light diffusing board 150 is with transmitance And the plate-shaped member of light diffusivity, make the outgoing light diffusion of the exit facet 135 from flux control member 132 and transmit.Light overflows Penetrate the light-emitting area that plate 150 for example can be lighting device 100.
For the material of light diffusing board 150, as long as the emergent light of the exit facet 135 from flux control member 132 can be made Diffuse and transmit, be just not particularly limited, be, for example, polymethyl methacrylate (PMMA), makrolon (PC), polystyrene (PS), the transmitance resin such as styrene-methylmethacrylate copolymer resin (MS).In order to assign light diffusivity, in light There are the Light diffusers such as bead on the surface of diffusing panel 150 formed with trickle bumps, or in the inner dispersion of light diffusing board 150.
In the lighting device 100 involved by embodiment 1, the light projected from each light-emitting component 131 especially becomes Relative to the optical axis L A generally perpendicular directions of light-emitting component 131, and reciprocal both direction (Y direction in Fig. 4) Project, so as to irradiate the wider range of light diffusing board 150 by flux control member 132.Penetrated from each flux control member 132 The light gone out is further expanded by light diffusing board 150 to be penetrated and is projected to outside.Thereby, it is possible to suppress the irregular colour of lighting device with And uneven illumination.
(structure of flux control member)
Fig. 5 A to Fig. 5 C and Fig. 6 A to Fig. 6 C are the figures for the structure for showing flux control member 132.Fig. 5 A are light beam controls The front view of part 132 processed, Fig. 5 B are top views, and Fig. 5 C are side views.Fig. 6 A are along the profile of Fig. 5 B 6A-6A lines, figure 6B is look up figure, and Fig. 6 C are the profiles along Fig. 5 B 6C-6C lines.
Flux control member 132 controls the luminous intensity distribution of the light projected from light-emitting component 131.As shown in Fig. 6 A to Fig. 6 C, light beam Control unit 132 has the reflecting surface 134, two of the plane of incidence 133, two exit facet 135, flange part 136 and foot 137.
The plane of incidence 133 makes a part of incidence of the light projected from light-emitting component 131.The plane of incidence 133 is in Beam Control portion The inner surface for the recess 139 that the central portion of the bottom surface (face of the side of light-emitting component 131) 138 of part 132 is formed.It is not specially limited recessed The shape in portion 139.The shape of recess 139 both can be to have the face comprising edge of top surface and side or such as hemisphere Shape or the semiellipse bodily form etc. do not include the curved surface at edge.In the present embodiment, the shape of recess 139 is with top surface and side The face for including edge.Top surface both can be one, or two or more.
Two reflectings surface 134 are configured at the side opposite with light-emitting component 131 (light diffusing board 150 across the plane of incidence 133 Side).In addition, two reflectings surface 134 make from the part of the incident light of the plane of incidence 133 to big with the optical axis L A of light-emitting component 131 Cause vertical and reciprocal both direction to reflect, i.e., be configured in light-emitting device 130 reciprocal in the Y direction of wire Both direction reflects.Two reflectings surface 134 are respectively configured as, the optical axis L A comprising light-emitting component 131 section (it is specific and Speech, includes Z axis and the section parallel with Y-axis) in, using the optical axis L A of light-emitting component 131 as boundary line, with from light-emitting component 131 Optical axis L A towards end (exit facet 135), uprised from the height of bottom surface 138 (substrate 120) to two reflectings surface 134.Specifically For, two reflectings surface 134 are respectively formed as, in the section formed by the plane cutting, with the light from light-emitting component 131 Towards end (exit facet 135), tangent slope tapers into axle LA.
Two exit facets 135 are configured to opposite each other across two reflectings surface 134.Two exit facets 135 make from entering respectively Penetrate after the incidence of face 133 light for directly reaching exit facet 135 and projected by the light that two reflectings surface 134 reflect to outside.Moreover, In order to suppress, due to irregular colour caused by light-emitting component 131, multiple first raised lines 140 to be provided with two exit facets 135.
Be not specially limited the first raised line 140, relative to the section in section vertical the optical axis L A of light-emitting component 131 Shape, it can be waveform or triangle or rectangle (including trapezoidal).
(observed when from the side of exit facet 135 along Y direction), the first raised line 140 has the light with light-emitting component 131 Crest line almost parallel axle LA.It is almost parallel when referring to from the side of exit facet 135 by the optical axis L A of light-emitting component 131 and first The angle that the crest line of raised line 140 is formed is less than 15 degree, preferably 0 degree.So by optical axis L A and the crest line of the first raised line 140 Angulation is set as that the reasons why minimum is, even if the structure of the mold for forming of flux control member 132 is uncomplicated, also can It is enough to be easily removed from the molds molding part.As long as the mould that the direction intersected to the removing direction with molding part can be used to slide Lamps structure, the limitation relative to the inclined angles of optical axis L A can also be eliminated.Alternatively, it is also possible to by flux control member 132 When being installed on substrate 120, the angle as formed by optical axis L A with the crest line of the first raised line 140 is set significantly to tilt.
" crest line " of first raised line 140 refers to the wire connection of the highest part of raised line, refers to being connected to relative to hair The line on the summit of the first raised line 140 in section vertical the optical axis L A of optical element 131." crest line " of first raised line 140 both may be used To be that each first raised line 140 has one or has two or more.For example, as the optical axis L A relative to light-emitting component 131 When the section shape of the first raised line 140 in vertical section is waveform, the single line for being connected to the summit of ripple is crest line.Work as phase When the section shape of the first raised line 140 in section vertical optical axis L A for light-emitting component 131 is trapezoidal, by trapezoidal two The point line being connected to each other and the line that another point is connected to each other in individual summit (upper bottom and the crosspoint of pin), this two Line is respectively crest line.
In the vertical sections of the optical axis L A relative to light-emitting component 131, the distance between centers a of multiple first raised lines 140 (distance of X-direction) both can be with identical, can also be different.For example, cut open the optical axis L A relative to light-emitting component 131 is vertical Can be with gradual along center of the X-direction away from exit facet 135, the distance between centers a of multiple first raised lines 140 in face Diminish.From the viewpoint of realizing desired luminous intensity distribution and suppressing irregular colour, the distance between centers a of multiple first raised lines 140 is excellent Elect as identical." the distance between centers a " of multiple first raised lines 140 refers to vertical in the optical axis L A relative to light-emitting component 131 In section, the distance between center line of multiple first raised lines 140 (reference picture 7).
In the vertical sections of the optical axis L A relative to light-emitting component 131, height b (the Y-axis sides of multiple first raised lines 140 To length) both can be with identical, can also be different.For example, in the vertical sections of the optical axis L A relative to light-emitting component 131, Can be as the height b along center of the X-direction away from exit facet 135, the first raised line 140 is tapered into.It is expected from realizing Luminous intensity distribution and from the viewpoint of suppressing irregular colour, the height b of multiple first raised lines 140 is preferably identical.Relative to luminous member In section vertical the optical axis L A of part 131 " the height b " of the first raised line 140 refers to, in the optical axis relative to light-emitting component 131 In section vertical LA, equivalent to the summit for being connected to two adjacent raised lines 140 straight line and be connected to and be formed at this two The length of half of the recess with being formed at the distance between the straight line of the lowest point of two recesses of its both sides between raised line 140 (reference picture 7).
On the direction (Z-direction) parallel with the optical axis L A of light-emitting component 131, the height b of multiple first raised lines 140 was both Can be with identical, can also be different.For example, in the section of the optical axis L A comprising light-emitting component 131, with edge and light-emitting component Direction (Z-direction) parallel 131 optical axis L A tapers into away from reflecting surface 134, the height b of multiple first raised lines 140.
Between the center of first raised line 140 in the substantially vertical sections of the optical axis L A relative to light-emitting component 131, multiple Distance a and height b ratio are preferably a：B=2：1~13：1.Work as a：B within the above range when, due to do not make from two outgoing The light scattering that face 135 is projected, but can somewhat change direct of travel, therefore while realize desired luminous intensity distribution, easily suppress Irregular colour.Especially, irregular colour can not only be suppressed, additionally it is possible to further improve Illumination Distribution, from this point of view, Relative in section vertical the optical axis L A of light-emitting component 131, the distance between centers a and height b of multiple first raised lines 140 ratio Rate is preferably a：B=5：1~11：1, more preferably a：B=5：1~10：1.
Between the center of first raised line 140 in the substantially vertical sections of the optical axis L A relative to light-emitting component 131, multiple Distance a is preferably greater than equal to 0.125mm and is less than or equal to 4.000mm.When the distance between centers a of multiple first raised lines 140 exists When in above range, the inhibition of irregular colour is readily available.Especially, as the distance between centers a of multiple first raised lines 140 Ratio with height b is a：B=5：1~11：When 1, preferably with respect to more in section vertical the optical axis L A of light-emitting component 131 The distance between centers a of individual first raised line 140 is more than 0.125mm and is less than or equal to 2.000mm.Thus it is readily available irregular colour Inhibition.
Fig. 7 shows the light involved by the vertical sections of the optical axis L A relative to light-emitting component 131, embodiment 1 The curve map of one of the section shape of the exit facet 135 of beam control unit 132.In the figure 7, transverse axis is represented away from Beam Control portion Distance d1 (the distances of X-direction at the center of the exit facet 135 of part 132；Mm), the longitudinal axis is represented away from flux control member 132 Height h1 (the distances of Y direction of the reference plane of exit facet 135；mm).Reference plane refers in the light relative to light-emitting component 131 In section vertical axle LA, the line at the midpoint of the summit the lowest point adjacent thereto of the first raised line 140 is connected to.
As shown in fig. 7, in the vertical sections of the optical axis L A relative to light-emitting component 131, the light involved by embodiment 1 The section shape of the exit facet 135 of beam control unit 132 is set as meeting following formula (1).
H1=b × cos (2 π d1/a) ... formulas (1)
Wherein, a：The distance between centers (mm) of multiple first raised lines 140, b：The height (mm) of first raised line 140, d1：Away from Distance (the distance of X-direction at the center of the exit facet 135 of flux control member 132；Mm), h1：Away from flux control member 132 Exit facet 135 reference plane the height (distance of Y direction；mm).
Flange part 136 is located between the peripheral part of the bottom surface 138 of two exit facets 135 and flux control member 132, relatively Protruded laterally in central shaft CA.Being shaped as flange part 136 is generally rectangular.Although flange part 136 is not essential composition Key element, but by setting flange part 136, is easily operated and position adjustment to flux control member 132.For flange The thickness in portion 136, as long as considering that mouldability of the necessary area of two exit facets 135, flange part 136 etc. determines, do not have It is particularly limited to.
Multiple foots 137 are the peripheral part in the bottom surface 138 (back side) of flux control member 132, from bottom surface 138 and convex The bottom of the edge 136 generally cylindrical part prominent to the side of light-emitting component 131.Multiple foots 137 are for light-emitting component 131 appropriate position supporting flux control members 132 (reference picture 6B).Foot 137 can be entrenched in and be formed at substrate 120 Hole portion, it is consequently for being positioned on the direction parallel with X/Y plane.
Effect for the flux control member 132 involved by present embodiment, while using flux control member compared with 132 are compared, while illustrating.Fig. 8 A to Fig. 8 C are the figures for showing to compare the structure with flux control member.Fig. 8 A are Compare the front view with flux control member 20, Fig. 8 B are top views, and Fig. 8 C are side views.
Comparing with flux control member 20, it is (not shown) incident from the light that light-emitting component 131 projects from the plane of incidence, and After being reflected by two reflectings surface 21, advanced to vertical with the optical axis L A of light-emitting component and reciprocal both direction, afterwards, from Two exit facets 22 project to outside.Now, two either shiny surfaces (reference picture 8A to Fig. 8 C), or slightly of exit facet 22 Matte (not shown).When two exit facets are shiny surface, easily cause the irregular colour from light-emitting component 131 do not eliminate and Still keep；When two exit facets 22 are mat surface, nearby scattered from the light that exit facet 22 projects in exit facet 22, because This, can realize desired luminous intensity distribution.
On the other hand, in the flux control member 132 of present embodiment, the light projected from light-emitting component 131 is by two After individual reflecting surface 134 reflects, advanced to vertical with the optical axis L A of light-emitting component 131 and reciprocal both direction, afterwards, from Two exit facets 135 project to outside.What the light projected from exit facet 135 was controlled as reachable light diffusing board 150 leaves hair The position (reference picture 4) of electro-optical device 130.Multiple first raised lines 140 (reference picture 4 and figure are configured with two exit facets 135 5B).Thus, the light projected from two exit facets 135 will not scatter, but pass through multiple appropriateness of first raised line 140 respectively Ground changes exit direction and projected to outside.Therefore, it is possible to rightly control the luminous intensity distribution of the light projected from light-emitting component 131, and And it is adequately suppressed irregular colour.
(simulation 1-1)
In 1-1 is simulated, analyze using the flux control member A-1 to A-6 involved by embodiment 1 and B-1 extremely B-4 lighting device 100, on light diffusing board 150 colourity Y value and Illumination Distribution, wherein, in Fig. 5 A to Fig. 6 C light beam In control unit 132, relative to multiple first raised lines of the exit facet 135 in section vertical the optical axis L A of light-emitting component 131 140 distance between centers a and height b ratio and distance between centers a are set as follows.Using only having a light-emitting device 130 lighting device 100 has carried out the analysis of colourity Y value and Illumination Distribution.
In addition, in order to compare, analyze to use and compare with flux control member (Fig. 8 A to Fig. 8 C flux control member 20) lighting device, on light diffusing board colourity Y value and Illumination Distribution, this compares with flux control member except not existing Have on two exit facets 135 beyond the first raised line 140, other are identical with Fig. 5 A to Fig. 6 C flux control member 132.
(parameter of exit facet 135)
Exit facet 135 is set to, in the vertical sections of the optical axis L A relative to light-emitting component 131, makes have first The section shape of the exit facet 135 of raised line 140 meets following formula (1).
H1=b × cos (2 π d1/a) ... formulas (1)
a：The distance between centers (mm) of multiple first raised lines 140；
b：The height (mm) of first raised line 140；
d1：Distance (mm) from the center of the exit facet 135 of flux control member 132；
h1：From the height (mm) of the reference plane of the exit facet 135 of flux control member 132.
Flux control member A：Distance between centers a：Height b=2：1；
Flux control member A-1：A=250 μm of distance between centers, b=125 μm of height；
Flux control member A-2：A=500 μm of distance between centers, b=250 μm of height；
Flux control member A-3：A=750 μm of distance between centers, b=375 μm of height；
Flux control member A-4：A=1000 μm of distance between centers, b=500 μm of height；
Flux control member A-5：A=1250 μm of distance between centers, b=625 μm of height；
Flux control member A-6：A=1500 μm of distance between centers, b=750 μm of height.
Flux control member B：Distance between centers a：Height b=13：1；
Flux control member B-1：A=250 μm of distance between centers, b=19 μm of height；
Flux control member B-2：A=500 μm of distance between centers, b=38 μm of height；
Flux control member B-3：A=750 μm of distance between centers, b=57 μm of height；
Flux control member B-4：A=1000 μm of distance between centers, b=76 μm of height.
(other common parameters)
The external diameter of flux control member：The length of Y direction is 11.1mm, the length of X-direction is 9.2mm；
The height of light-emitting component：0.75mm；
The size of light-emitting component：Φ28mm；
The interval of substrate 120 and light diffusing board 150：70mm.
Fig. 9 A be shown with Fig. 8 A to Fig. 8 C flux control member 20 it is comparison lighting device, in light diffusing board On colourity Y value analysis result curve map, Fig. 9 B are to show the lighting device, the Illumination Distribution on light diffusing board The figure of analysis result.
Figure 10 A be shown with flux control member A-1 to A-6 involved by embodiment 1 it is lighting device 100, The curve map of the analysis result of colourity Y value on light diffusing board 150, Figure 10 B are the photographs for being shown with flux control member A-1 The figure of bright device 100, Illumination Distribution on light diffusing board 150 analysis result, Figure 10 C are shown using Beam Control The figure of the analysis result of Illumination Distribution on the light diffusing board 150 of the lighting device 100 of components A -6.
Figure 11 A be shown with flux control member B-1 to B-4 involved by embodiment 1 it is lighting device 100, The curve map of the analysis result of colourity Y value on light diffusing board 150, Figure 11 B are the photographs for being shown with flux control member B-1 The figure of bright device 100, Illumination Distribution on light diffusing board 150 analysis result, Figure 11 C are to be shown with Beam Control portion The figure of the analysis result of part B-3 Illumination Distribution lighting device 100, on light diffusing board 150.
Fig. 9 A, Figure 10 A and Figure 11 A transverse axis represent optical axis L A on light diffusing board 150, away from light-emitting component 131 The distance d2 (distances of Y direction；Mm), the longitudinal axis represents the colourity Y value on light diffusing board 150.Fig. 9 B, Figure 10 B, Figure 10 C, Figure 11 B and Figure 11 C X direction are corresponding with Fig. 9 A, Figure 10 A and Figure 11 A X direction respectively.
As shown in Figure 9 A, it is known that using comparing with the lighting device of flux control member 20 in the light away from light-emitting component 131 Axle LA distance (mm) is that the up- wards inclination of the colourity Y value near 50mm is precipitous, and lifting height is also high.
On the other hand, as shown in Figure 10 A and Figure 11 A, it is known that use the flux control member A- involved by embodiment 1 1 to A-6 and B-1 to B-4 lighting device 100, the phase of lighting device 100 especially with flux control member A-1 to A-6 Than using the lighting device compared with flux control member 20, the maximum of the colourity Y value of the Illumination Distribution on light diffusing board 150 The difference of value and minimum value is smaller.Particularly understand the lighting device 100 using flux control member A-1 to A-6 away from luminous member The optical axis L A of part 131 distance (mm) is that the up- wards inclination of the colourity Y value near 50mm is gentle, and lifting height is also low.
It follows that compared to the comparison Beam Control portion for not having multiple first raised lines 140 on two exit facets 135 Part 20, there is the flux control member involved by the embodiment 1 of multiple first raised lines 140 respectively on two exit facets 135 A-1 to A-6 and B-1 to B-4 can suppress irregular colour.
In addition, as shown in Figure 10 B, Figure 10 C, Figure 11 B and Figure 11 C, it is known that use the light beam control involved by embodiment 1 The Illumination Distribution of lighting device of the components A -1 processed to A-6 and B-1 to B-4 is also good.According to more attention light distribution characteristic and suppression Which of irregular colour, one kind in flux control member A-1 to A-6 and B-1 to B-4 can be properly selected.
(simulation 1-2)
In 1-2 is simulated, using flux control member C-3 to C-8 and D-1 to D-4, further analyze in light diffusion Colourity Y value and Illumination Distribution on plate 150, wherein, relative to the exit facet in section vertical the optical axis L A of light-emitting component 131 Distance between centers a and height the b ratio and distance between centers a size of 135 multiple first raised lines 140 be set as Under.Parameter in addition to the parameter of exit facet 135, it is set as identical with simulation 1-1.
(parameter of exit facet 135)
Flux control member C：Distance between centers a：Height b=5：1；
Flux control member C-3：A=250 μm of distance between centers, b=50 μm of height；
Flux control member C-4：A=500 μm of distance between centers, b=100 μm of height；
Flux control member C-5：A=750 μm of distance between centers, b=150 μm of height；
Flux control member C-6：A=1000 μm of distance between centers, b=200 μm of height；
Flux control member C-7：A=1250 μm of distance between centers, b=250 μm of height；
Flux control member C-8：A=1500 μm of distance between centers, b=300 μm of height.
Flux control member D：Distance between centers a：Height b=11：1；
Flux control member D-1：A=250 μm of distance between centers, b=22 μm of height；
Flux control member D-2：A=500 μm of distance between centers, b=45 μm of height；
Flux control member D-3：A=750 μm of distance between centers, b=68 μm of height；
Flux control member D-4：A=1000 μm of distance between centers, b=90 μm of height.
Figure 12 A be shown with flux control member C-3 to C-8 involved by embodiment 1 it is lighting device 100, The curve map of the analysis result of colourity Y value on light diffusing board, Figure 12 B are the illuminations for being shown with flux control member C-3 The figure of device 100, Illumination Distribution on light diffusing board 150 analysis result, Figure 12 C are to be shown with flux control member The figure of the analysis result of C-8 Illumination Distribution lighting device 100, on light diffusing board 150.
Figure 13 A be shown with flux control member D-1 to D-4 involved by embodiment 1 it is lighting device 100, The curve map of the analysis result of colourity Y value on light diffusing board 150, Figure 13 B are the photographs for being shown with flux control member D-1 The figure of bright device 100, Illumination Distribution on light diffusing board 150 analysis result, Figure 13 C are to be shown with Beam Control portion The figure of the analysis result of part D-4 Illumination Distribution lighting device 100, on light diffusing board 150.
Figure 12 A and Figure 13 A transverse axis represent the distance d2 of the optical axis L A away from light-emitting component 131 on light diffusing board 150 (the distance of Y direction；Mm), the longitudinal axis represents the colourity Y value on light diffusing board 150.Figure 12 B, Figure 12 C, Figure 13 B and figure 13C X direction is corresponding with Figure 12 A and Figure 13 A X direction respectively.
As illustrated in fig. 12, it is known that use the flux control member C-3 to C-8 and D-1 to D-4 involved by embodiment 1 Lighting device 100 compare lighting device using the comparison flux control member 20 shown by Fig. 9 A, away from light-emitting component 131 optical axis L A distance d2 (mm) is that the up- wards inclination of the colourity Y value near 50mm is gentle, and lifting height is also low, can Suppress irregular colour.
Further, as shown in Figure 12 B, 12C, 13B and Figure 13 C, compared to use Figure 10 B, 10C, 11B and Figure 11 C institutes The flux control member A-1 to A-6 and the Illumination Distribution of B-1 to B-4 lighting device 100 shown, it is known that use embodiment party In the Illumination Distribution of the lighting device 100 of flux control member C-3 to C-8 and D-1 to D-4 involved by formula 1, light is in Y-axis Side diffuses up.It follows that the distance between centers a and height b of the first raised line 140 by making two exit facets 135 Distance a between centered on ratio set：Height b=5：1~11：1, irregular colour can not only be suppressed, additionally it is possible to further improve Illumination Distribution.
(simulation 1-3)
In 1-3 is simulated, using flux control member C-1 to C-11 and E-1 to E-11, further analyze and overflow in light Colourity Y value and the Illumination Distribution penetrated on plate 150, wherein, relative to it is in section vertical the optical axis L A of light-emitting component 131, go out Distance between centers a and height the b ratio and distance between centers a size for multiple first raised lines 140 for penetrating face 135 are set as It is as follows.Parameter in addition to the parameter of exit facet 135, it is set as identical with simulation 1-1.
(parameter of exit facet 135)
Flux control member C：Distance between centers a：Height b=5：1；
Flux control member C-1：A=100 μm of distance between centers, b=20 μm of height；
Flux control member C-2：A=125 μm of distance between centers, b=25 μm of height；
Flux control member C-3：A=250 μm of distance between centers, b=50 μm of height；
Flux control member C-4：A=500 μm of distance between centers, b=100 μm of height；
Flux control member C-5：A=750 μm of distance between centers, b=150 μm of height；
Flux control member C-6：A=1000 μm of distance between centers, b=200 μm of height；
Flux control member C-7：A=1250 μm of distance between centers, b=250 μm of height；
Flux control member C-8：A=1500 μm of distance between centers, b=300 μm of height；
Flux control member C-9：A=2000 μm of distance between centers, b=400 μm of height；
Flux control member C-10：A=3000 μm of distance between centers, b=600 μm of height；
Flux control member C-11：A=4000 μm of distance between centers, b=800 μm of height.
Flux control member E：Distance between centers a：Height b=10：1；
Flux control member E-1：A=100 μm of distance between centers, b=10 μm of height；
Flux control member E-2：A=125 μm of distance between centers, b=12 μm of height；
Flux control member E-3：A=250 μm of distance between centers, b=25 μm of height；
Flux control member E-4：A=500 μm of distance between centers, b=50 μm of height；
Flux control member E-5：A=750 μm of distance between centers, b=75 μm of height；
Flux control member E-6：A=1000 μm of distance between centers, b=100 μm of height；
Flux control member E-7：A=1250 μm of distance between centers, b=125 μm of height；
Flux control member E-8：A=1500 μm of distance between centers, b=150 μm of height；
Flux control member E-9：A=2000 μm of distance between centers, b=200 μm of height；
Flux control member E-10：A=3000 μm of distance between centers, b=300 μm of height；
Flux control member E-11：A=4000 μm of distance between centers, b=400 μm of height.
Figure 14 A be shown with flux control member C-1 to C-11 involved by embodiment 1 it is lighting device 100, The curve map of the analysis result of colourity Y value on light diffusing board, Figure 14 B are the illuminations for being shown with flux control member C-2 The figure of device 100, Illumination Distribution on light diffusing board 150 analysis result, Figure 14 C are to be shown with flux control member The figure of the analysis result of C-9 Illumination Distribution lighting device 100, on light diffusing board 150.
Figure 15 A be shown with flux control member E-1 to E-11 involved by embodiment 1 it is lighting device 100, The curve map of the analysis result of colourity Y value on light diffusing board 150, Figure 15 B are the photographs for being shown with flux control member E-2 The figure of bright device 100, Illumination Distribution on light diffusing board 150 analysis result, Figure 15 C are to be shown with Beam Control portion The figure of the analysis result of part E-9 Illumination Distribution lighting device 100, on light diffusing board 150.
Figure 14 A and Figure 15 A transverse axis represent the distance d2 of the optical axis L A away from light-emitting component 131 on light diffusing board 150 (the distance of Y direction；Mm), the longitudinal axis represents the colourity Y value on light diffusing board 150.Figure 14 B, Figure 14 C, Figure 15 B and figure 15C X direction is corresponding with Figure 14 A and Figure 15 A X direction respectively.
As shown in Figure 14 A and Figure 15 A, it is known that using the flux control member C-1 to C-11 involved by embodiment 1 and E-1 to E-11 lighting device, the distance between centers a especially with multiple first raised lines 140 are 125 μm~2000 μ ms Interior flux control member C-2 to C-9 and E-2 to E-9 lighting device are compared using the comparison shown by Fig. 8 A to Fig. 8 C It is the colourity Y near 50mm in the distance (mm) of the optical axis L A away from light-emitting component 131 with the lighting device of flux control member 20 The up- wards inclination of value is gentle, and lifting height is also low, can suppress irregular colour.
In addition, as shown in Figure 14 B and Figure 15 B, it is known that using flux control member C-2, C-9 involved by embodiment 1, E-2 and E-9 lighting device is that light spreads in the Y-axis direction.
It follows that centered on the distance between centers a and height b of the first raised line 140 by making exit facet 135 ratio Between distance a：Height b=5：1~11：1 (is preferably 5：1~10：1), and distance between centers a is made to be 125 μm~2000 μm, not only Irregular colour can highly be suppressed, additionally it is possible to further improve Illumination Distribution.
(effect)
As described above, the flux control member 132 involved by embodiment 1 be provided with two exit facets 135 it is multiple First raised line 140.Thereby, it is possible to the light for making to project from light-emitting component 131 to substantially vertical and opposite each other relative to optical axis L A Both direction diffusion while, suitably change exit direction, therefore, it is possible to maintain desired light distribution characteristic, and can Suppress irregular colour.
[embodiment 2]
Next, reference picture 16A to Figure 16 C and Figure 17 A to Figure 17 C, to the flux control member involved by embodiment 2 132 illustrate.Figure 16 A to Figure 16 C and Figure 17 A to Figure 17 C are to show the flux control member involved by embodiment 2 The figure of structure.Figure 16 A are the front views of flux control member 132, and Figure 16 B are top views, and Figure 16 C are side views.Figure 17 A are figures Along the profile of 16B 17A-17A lines, Figure 17 B are look up figure, and Figure 17 C are the profiles along Figure 16 B 17C-17C lines.Implement Two reflectings surface 134 of the flux control member 132 involved by mode 2 also have multiple second raised lines 141, and this point is with implementing Flux control member 132 involved by mode 1 is different.Pair therefore, with the phase of flux control member 132 involved by embodiment 1 Same structure division assigns identical reference, and the description thereof will be omitted.
In the flux control member 132 involved by embodiment 2, in the section of the optical axis L A comprising light-emitting component 131 In (including the optical axis L A of light-emitting component 131 and parallel to the section of Y direction), multiple second raised lines 141 are further configured at At least a portion in two reflectings surface 134, preferred disposition is in the region that the light projected from light-emitting component 131 reaches.
Refer in two reflectings surface 134 from the region that the light of the injection of light-emitting component 131 is reached, such as in two reflectings surface Region (reference picture 16A, Figure 16 B) near on 34, light-emitting component 131 optical axis L A.Multiple second raised lines 141 are formed as it Crest line forms the position relationship to offset one from another relative to the crest line of multiple first raised lines 140.The position relationship to offset one from another refers to Both non-intersect or not parallel position relationship each other.The crest line of second raised line 141 refers to the wire for connecting the highest part of raised line Connection, it is the line on the summit for the second raised line 141 being connected in the section of the optical axis L A comprising light-emitting component 131.From reflecting surface When flux control member 132 is observed in 134 sides (when from Z-direction), multiple second raised lines 141 be both configurable to its crest line (reference picture 16A, Figure 16 B) almost parallel with X-direction, can also be configured to form the circular part around optical axis L A (not shown).
The section shape of section that be not particularly limited multiple second raised lines 141, optical axis L A comprising light-emitting component 131, It can be waveform or triangle or rectangle (including trapezoidal).
In the section of the optical axis L A comprising light-emitting component 131, distance between centers a ' (the Y-axis sides of multiple second raised lines 141 To distance) both can be with identical, can also be different.For example, in the section of the optical axis L A comprising light-emitting component 131, Ke Yisui Along optical axis L A of the Y direction away from light-emitting component 131, the distance between centers a ' of multiple first raised lines 140 and taper into.It is " more The distance between centers a ' of individual second raised line 141 " refers to, in the section of the optical axis L A comprising light-emitting component 131, adjacent two The distance of the center line of second raised line 141 to each other.
In the section of the optical axis L A comprising light-emitting component 131, height the b ' (length of Z-direction of multiple second raised lines 141 Degree) both can be with identical, can also be different., can be with along Y-axis for example, in the section of the optical axis L A comprising light-emitting component 131 Optical axis L A of the direction away from light-emitting component 131, the height b ' of the second raised line 141 are tapered into.Including the light of light-emitting component 131 " the height b ' of the second raised line 141 " in axle LA section refers to, in the section of the optical axis L A comprising light-emitting component 131, phase When in the summit for connecting adjacent two the second raised lines 141 straight line and will be formed between this two the second raised lines 141 The length of the half of the distance between the straight line that the lowest point of recess and two recesses for being formed at its both sides connects.
So, the flux control member 132 involved by embodiment 2 is not only configured with multiple on two exit facets 135 First raised line 140, multiple second raised lines 141 are also configured with two reflectings surface 134.Thus, the first raised line is not only passed through 140, additionally it is possible to change the direct of travel of light by the second raised line 141, therefore, it is possible to more highly suppress irregular colour.Enter One step, by the first raised line 140 direct of travel of light can be made to be changed into X-direction, the row of light can be made by the second raised line 141 Enter direction and be changed into Z-direction, therefore, it is possible to more highly suppress irregular colour.
(simulation 2)
Simulation 2 in, analyze using the flux control member G involved by embodiment 2 it is lighting device 100, Colourity Y value and Illumination Distribution on light diffusing board 150, wherein, in Figure 18 A flux control member, two exit facets 135 The distance between centers a and height b of multiple first raised lines 140 are set as follows, and multiple second raised lines of two reflectings surface 134 141 be set as it is as follows.Parameter setting in addition to the parameter of exit facet 135 and reflecting surface 134 is identical with simulation 1-1.
(parameter of exit facet 135)
The distance between centers a of first raised line 140：Height b=7.5：1；
A=750 μm of the distance between centers of first raised line 140, b=100 μm of height.
(parameter of reflecting surface 134)
First, two in the section of the optical axis L A comprising light-emitting component 131, flux control member G are set instead Penetrate the section shape in face 134.
Figure 18 A are to show in the section of the optical axis L A comprising light-emitting component 131, flux control member G reflecting surface The curve map of a part for 134 section shape.Figure 18 B be show in the section of the optical axis L A comprising light-emitting component 131, from The analysis result of the section shape of the flux control member G of Figure 17 A to Figure 17 C with the second raised line 141 reflecting surface 134 In, subtract the section shape of the reflecting surface 134 of the flux control member 132 of Fig. 6 A to Fig. 6 C without the second raised line 141 Result (the Δ h2 of analysis result；Mm curve map).
Figure 18 A and Figure 18 B transverse axis represent the distance d2 (distances of Y direction of the optical axis L A away from light-emitting component 131； mm).Figure 18 A longitudinal axis represents bottom surface 138 of the reflecting surface 134 away from the point intersected relative to the optical axis L A with light-emitting component 131 Height h2 (the height of Z-direction；mm).Figure 18 B longitudinal axis is represented from the anti-of the flux control member G with the second raised line 141 Penetrate face 134 section shape subtract Fig. 6 A to Fig. 6 C without the second raised line 141 flux control member reflecting surface 134 The poor Δ h2 (height of Z-direction of section shape；mm).
a’：The distance between the center of second raised line 141 (mm)；
b’：Height (the length of Z-direction of second raised line 141：mm)；
The distance between centers a ' of second raised line 141：Height b '=20：1；
Distance between centers a '=500 μm, height b '=25 μm of second raised line 141.
Figure 19 A be shown with flux control member G involved by embodiment 2 it is lighting device, in light diffusing board The curve map of the analysis result of colourity Y value on 150, Figure 19 B are to show the lighting device, the photograph on light diffusing board 150 Spend the figure of the analysis result of distribution.
Figure 19 A transverse axis represents the distance d2 (Y directions of the optical axis L A away from light-emitting component 131 on light diffusing board 150 Distance；Mm), the longitudinal axis represents the colourity Y value on light diffusing board 150.Figure 19 B X direction and Figure 19 A X direction It is corresponding.
As shown in Figure 19 A, it is known that using the lighting device of the flux control member G involved by embodiment 2 compared to use The lighting device of comparison flux control member 20 shown by Fig. 9 A, in the distance (mm) of the optical axis L A away from light-emitting component 131 Up- wards inclination for the colourity Y value near 50mm is gentle, and lifting height is also low, can suppress irregular colour.
In addition, go out as shown in Figure 19 A, it is known that use the lighting device phase of the flux control member G involved by embodiment 2 Than the lighting device using flux control member C or E involved by the embodiment 1 shown by Figure 14 A and Figure 15 A, away from hair The optical axis L A of optical element 131 distance (mm) is that the up- wards inclination of the colourity Y value near 50mm is gentler, and lifting height It is lower, it can highly suppress irregular colour.
In addition, as shown in Figure 19 B, it is known that use the photograph of the lighting device of the flux control member G involved by embodiment 2 In degree distribution, the diffusion of light in the Y-axis direction is compared with use with the Illumination Distribution phase of the lighting device of flux control member Together, or above.
It follows that as long as the first raised line 140 of exit facet 135 is identical design load, with being not provided with the second raised line 141 Situation compare, on reflecting surface 134 further set the second raised line 141 can more highly suppress irregular colour.
(effect)
As described above, the flux control member 132 involved by embodiment 2 is not only provided with two exit facets 135 Multiple first raised lines 140, multiple second raised lines 141 are also provided with two reflectings surface 134.Thus, compared to the institute of embodiment 1 The flux control member 132 being related to, reflection direction or exit direction further can be adjusted by the second raised line 141, accordingly, it is capable to Desired light distribution characteristic is enough maintained, and can further suppress irregular colour.
[embodiment 3]
Next, reference picture 20A to Figure 20 C and Figure 21 A to Figure 21 C, to the flux control member involved by embodiment 3 132 illustrate.Figure 20 A to Figure 20 C and Figure 21 A to Figure 21 C are to show the flux control member involved by embodiment 3 The figure of structure.Figure 20 A are the front views of flux control member 132, and Figure 20 B are top views, and Figure 20 C are side views.Figure 21 A are edges The profile of Figure 20 B 21A-21A lines, Figure 21 B are look up figure, and Figure 21 C are the profiles along Figure 20 B 21C-21C lines.Implement The width that flux control member 132 involved by mode 3 is configured mainly to X-direction is smaller and Liang Ge foots 137 are in Y-axis side It is relative upwards, and the shape of recess 139 is different, this point is different from the flux control member 132 involved by embodiment 2.Cause This, pair assigns identical reference with the identical structure division of flux control member 132 involved by embodiment 2, and saves Slightly its explanation.
The width that flux control member 132 involved by embodiment 3 is formed as X-direction is smaller.Also, Liang Ge foots 137 are configured in the Y-axis direction relatively (reference picture 20B and 21B).
The recess 139 of flux control member 132 involved by embodiment 3 has in the light beam involved by embodiment 2 The shape (reference picture 21A) of the adjacent part in both ends with recess 139 in the Y-axis direction is hollowed out in control unit 132.That is, The plane of incidence 133 as the inner surface of recess 139 has on the direction along optical axis L A of the Y direction away from light-emitting component 131 Have：Two the first top surface 133a, two the second top surface 133b, two first side 133c, two the 3rd top surface 133d, two Two side faces 133e and two the 3rd side 133f.Moreover, by extend first side 133c imaginary plane (not shown), The region that three top surface 133d, second side 133e, the 3rd side 133f and bottom surface 138 surround (is dug equivalent to the part hollowed out Empty portion 139a).It is, the 3rd top surface 133d, second side 133e and the 3rd side 133f are to be re-formed by hollowing out Face.The number of top surface and side is not specially limited, is 6 top surfaces, 6 sides in embodiment 3.
3rd top surface 133d both can be horizontal plane or inclined plane.In the present embodiment, the 3rd top surface 133d It is arranged in the optical axis L A comprising light-emitting component 131 and the section parallel with Y-axis, with the optical axis from light-emitting component 131 The inclined plane that LA uprises towards end (exit facet 135), the height counted from bottom surface 138.
(effect)
As described above, the width that the flux control member 132 involved by embodiment 3 is formed as X-direction is smaller.By This, flux control member 132 involved by embodiment 3 except with the flux control member 132 involved by embodiment 2 Outside identical effect, additionally it is possible to realize miniaturization.Further, the flux control member 132 involved by embodiment 3 also has Cavern part 139a.Thus, except molding cycle can be shortened, additionally it is possible to further reduce shaping during manufacture flux control member Shrink (inprocess shrinkage after molding), therefore, it is possible to effectively produce the bad order that can suppress to occur due to contraction Flux control member 132.
[embodiment 4]
Next, reference picture 22A~22C and Figure 23 A~23C, to the flux control member 132 involved by embodiment 4 Illustrate.Figure 22 A to Figure 22 C and Figure 23 A to Figure 23 C are the knots for showing the flux control member involved by embodiment 4 The figure of structure.Figure 22 A are the front views of flux control member 132, and Figure 22 B are top views, and Figure 22 C are side views.Figure 23 A are along figure The profile of 22B 23A-23A lines, Figure 23 B are look up figure, and Figure 23 C are the profiles along Figure 22 B 23C-23C lines.Embodiment party The first side 133c of flux control member 132 involved by formula 4 also has multiple 3rd raised lines 142, this point and embodiment 3 Involved flux control member 132 is different.Pair therefore, with the identical knot of flux control member 132 involved by embodiment 3 Structure part assigns identical reference, and the description thereof will be omitted.
In the flux control member 132 involved by embodiment 4, multiple are configured with two first side 133c Three raised lines 142.
From the viewpoint of ejection formation, the 3rd raised line 142 is preferably configured to that molding can be carried out.In the present embodiment, When 3rd raised line 142 is configured to from the optical axis L A sides of light-emitting component 131, the crest line of the 3rd raised line 142 is roughly parallel to hair The optical axis L A of optical element 131.It is almost parallel to refer to as formed by the optical axis L A of light-emitting component 131 and the crest line of the 3rd raised line 142 Angle is less than 15 degree, preferably 0 degree.
The 3rd raised line 142, section shape relative to section vertical the optical axis L A of light-emitting component 131 is not specially limited Shape, it can be waveform or triangle or rectangle (including trapezoidal).
In the vertical sections of the optical axis L A relative to light-emitting component 131, the distance between centers (X of multiple 3rd raised lines 142 The distance of direction of principal axis) both can be with identical, can also be different." distances between centers of multiple 3rd raised lines 142 " refer to relative to In section vertical the optical axis L A of light-emitting component 131, the distance of the center lines of multiple 3rd raised lines 142 to each other.Relative to In section vertical the optical axis L A of light-emitting component 131, the distances between centers of multiple 3rd raised lines 142 is preferably designed for performance will be The effect (effect for dissipating arrival first side 133c light by the 3rd raised line 142) being described later.
In the vertical sections of the optical axis L A relative to light-emitting component 131, the height (Y direction of multiple 3rd raised lines 142 Length) both can be with identical, can also be different.In the vertical sections of the optical axis L A relative to light-emitting component 131 " the 3rd is convex The height of bar 142 " refers to, in the vertical sections of the optical axis L A relative to light-emitting component 131, two adjacent equivalent to connection The straight line on the summit of the 3rd raised line 142 and the recess that will be formed between two the 3rd raised lines 142 and it is formed at its both sides The half length of the distance between the straight line that the lowest point of two recesses connects.Multiple 3rd the highly preferred of raised line 142 set It is calculated as playing the effect (effect for dissipating arrival first side 133c light by the 3rd raised line 142 that will be described hereinafter Fruit).
Effect for the flux control member 132 involved by embodiment 4, while the light involved by with embodiment 3 Beam control unit 132 is compared, while illustrating.Figure 24 is to show the flux control member 132 involved by embodiment 3 Light path figure.
As shown in figure 24, in the flux control member 132 involved by the 3rd embodiment, projected from light-emitting component 131 Light in reflected in the incident light of first side 133c by the 3rd top surface 133d, easily advance upward.Thus, by the 3rd top The light of face 133d reflections easily projects upward from exit facet 135, is accessible to the light close to the region of light-emitting device 130 and overflows Penetrate plate 150.It is, reaching the light of the light diffusing board 150 close to the region of light-emitting device 130 due to easily increasing to, therefore, lean on (in the curve map for the Figure 25 that will be described hereinafter, the distance d2 of Y direction is attached for 50mm in the region of nearly light-emitting device 130 Brightness closely) easily locally uprises, it is possible to produces slight brightness disproportionation according to the size of light-emitting component 131 or luminance (brightness disproportionation caused by the light of the 3rd top surface 133d reflections).
On the other hand, in the flux control member 132 involved by embodiment 4, on two first side 133c It is each configured with multiple 3rd raised lines 142.Thus, the light projected from light-emitting component 131 is dissipated by multiple 3rd raised lines 142 (particularly light dissipates along X-direction).As a result, can make to tail off in the incident light of first side 133c, thereby, it is possible to The light by the 3rd top surface 133d reflections is set to tail off.Thereby, it is possible to suppress the brightness caused by the light of the 3rd top surface 133d reflections It is uneven.
(simulation 3)
Simulation 3 in, analyze using the flux control member H involved by embodiment 4 it is lighting device 100, Illumination Distribution on light diffusing board 150, wherein, in Figure 23 A flux control member, between the center of multiple 3rd raised lines 142 Distance be highly set as it is as follows.
In addition, in order to compare, analyze and filled using flux control member I (Figure 21 A flux control member 132) illumination Put 100, Illumination Distribution on light diffusing board 150, flux control member I except without multiple 3rd raised lines 142 with Outside, other are identical with the flux control member H involved by embodiment 4.
In addition, the parameter setting in addition to first side 133c is identical with simulation 2.
(first side 133c parameter)
Distance between centers=650 μm of 3rd raised line 142, height=240 μm.
Figure 25 be shown with flux control member H involved by embodiment 4 it is lighting device, in light diffusing board The figure of the analysis result of Illumination Distribution on 150.Figure 25 transverse axis represents on light diffusing board 150, away from light-emitting component 131 The optical axis L A distance d2 (distances of Y direction；Mm), the longitudinal axis represents on light diffusing board 150, is set to the maximum of illumination Relative illumination when 1.
As shown in figure 25, it is known that compared using the lighting device of the flux control member H involved by embodiment 4 using real The lighting device of the flux control member I involved by mode 3 is applied, is in the distance d2 (mm) of the optical axis L A away from light-emitting component 131 The rising of relative illumination near 50mm is less, can suppress brightness disproportionation.
(effect)
As described above, match somebody with somebody respectively on two first side 133c of the flux control member 132 involved by embodiment 4 It is equipped with multiple 3rd raised lines 142.Thus, the flux control member 132 involved by embodiment 4 except with embodiment 3 Outside the involved identical effect of flux control member 132, additionally it is possible to suppress caused by the light of the 3rd top surface 133d reflections Brightness disproportionation.
In addition, two exit facets 135 in flux control member 132 are shown into embodiment 4 in embodiment 1 The example of multiple first raised lines 140 is respectively provided with entire surface, but is not limited to this, can also be in two exit facets 135 part sets multiple first raised lines 140 respectively.
It is provided with addition, being shown in embodiment 1 into embodiment 4 on two exit facets 135 as plane The example of multiple first raised lines 140, but this is not limited to, can also be in two exit facets as convex surface or concave surface Multiple first raised lines 140 are set on 135.
In addition, the first raised line 140 for being arranged at two exit facets 135 is shown into embodiment 4 in embodiment 1 The smooth example in surface, but this is not limited to, it can also make the first raised line in the range of it can rightly control luminous intensity distribution 140 surface roughening.
In addition, shown in embodiment 1 into embodiment 4 in the section of the optical axis L A comprising light-emitting component 131, Two exit facets 135 are roughly parallel to the optical axis L A (not tilting) of light-emitting component 131 example, but are not limited to this, It can be slightly tilted relative to the optical axis L A of light-emitting component 131.For example, in the section of the optical axis L A comprising light-emitting component 131, Exit facet 135 can also by along Z axis further away from light-emitting component 131 just closer to the optical axis L A of light-emitting component 131 in the way of incline Tiltedly.In the section of the optical axis L A comprising light-emitting component 131, exit facet 135 inclines relative to the optical axis L A's of light-emitting component 131 Rake angle for example can be in 0 degree to 10 degree of scope.
Multiple light-emitting devices 130 of lighting device 100 are configured in addition, being shown in embodiment 1 into embodiment 4 For the example of a row, but this is not limited to, the multiple row that can also be configured to more than two row.
In addition, the example that lighting device 100 is line illumination is shown into embodiment 4 in embodiment 1, but not It is defined in this, or the various billboard of fringing word billboard etc..
Figure 26 is the top view for the other structures for showing the lighting device involved by embodiment 1.In addition, save in the figure Light diffusing board is omited.In addition, the lighting device shown by the figure is used for example as fringing word billboard.Figure 27 A are shown by Figure 26 Light-emitting device periphery stereogram, Figure 27 B are Figure 27 A top views, and Figure 27 C are the sections along Figure 27 B 27C-27C lines Figure.In addition, pair assigning identical reference with the identical structure division of lighting device 100 involved by embodiment 1, and save Slightly its explanation.
Go out as shown in figure 26, lighting device 100 has housing 110, substrate 120 ' (not shown), multiple light-emitting devices 130 And cable 170.
It is S fonts that housing 110, which is configured to plan view shape,.The light-emitting component 131 of light-emitting device 130 is with being formed at substrate 120 ' Wiring electrical connection in upper or substrate 120 '.The cable 170 that is routed through of each substrate 120 ' electrically connects.With ca(u)lk material 171 Reinforcement has been carried out to the connecting portion of substrate 120 ' and cable 170.The example of the material of ca(u)lk material 171 includes polyurethane tree Fat, silicones, epoxy resin.Thus, can by electrically connecting multiple light-emitting devices 130 via cable 170 and carrying out modularization Multiple light-emitting devices 130 are freely configured according to the shape of housing 110.
Figure 28 is the enlarged partial isometric view for another other structures for showing the lighting device involved by embodiment 1. Go out as shown in figure 28, the top plate and side plate of housing 110 can also be omitted, the bottom plate of housing 110 is only covered with light diffusing board 150.
Industrial applicability
The lighting device of flux control member with the present invention goes for such as billboard, and (particularly fringing word is seen Plate), line illumination, general illumination etc..

Claims (8)

1. a kind of flux control member, the luminous intensity distribution of the light projected from light-emitting component is controlled, is had：
The plane of incidence, the light projected from light-emitting component are incident；
Two reflectings surface, it is configured at across the plane of incidence position relative with the light-emitting component, makes to enter from the plane of incidence A part for the light penetrated reflects to substantially vertical with the optical axis of the light-emitting component and reciprocal both direction respectively；With And
Two exit facets, are configured relative to one another across described two reflectings surface, make the light point by described two reflective surfaces Do not projected to outside；
Multiple first raised lines are each configured with described two exit facets, also, when from the outgoing surface side, it is described The optical axis of the crest line and the light-emitting component of multiple first raised lines is almost parallel.
2. flux control member according to claim 1, wherein,
In relative to the vertical section of the optical axis of the light-emitting component, the distance between centers a of the multiple first raised line is certain.
3. flux control member according to claim 1 or 2, wherein,
In relative to the vertical section of the optical axis of the light-emitting component, distance between centers a and the height of the multiple first raised line The ratio for spending b is a：B=2：1~13：1.
4. flux control member according to claim 3, wherein,
In relative to the vertical section of the optical axis of the light-emitting component, distance between centers a and the height of the multiple first raised line The ratio for spending b is a：B=5：1~11：1.
5. flux control member according to claim 4, wherein,
In relative to the vertical section of the optical axis of the light-emitting component, the distance between centers a of the multiple first raised line is big In 0.125mm and it is less than 2.000mm.
6. flux control member according to claim 1, wherein,
Multiple second raised lines are also configured with least a portion of described two reflectings surface,
The crest line of the crest line of second raised line and first raised line meets the position relationship to offset one from another.
7. a kind of light-emitting device, has：
Light-emitting component；And
Flux control member in claim 1 to 6 described in any one, it is configured to the plane of incidence and the light-emitting component Optical axis intersect.
8. a kind of lighting device, has：
Multiple light-emitting devices as claimed in claim 7；And
Light diffusing board, make from the light-emitting device project light diffusion while transmit.
CN201710930403.XA 2016-10-04 2017-10-09 Light flux controlling member, light emitting device, and lighting device Active CN107893974B (en)

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JP2017182710A JP2018061024A (en) 2016-10-04 2017-09-22 Light beam control member, light-emitting device and illuminating device

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