CN107388074A - Lighting device - Google Patents
Lighting device Download PDFInfo
- Publication number
- CN107388074A CN107388074A CN201710341962.7A CN201710341962A CN107388074A CN 107388074 A CN107388074 A CN 107388074A CN 201710341962 A CN201710341962 A CN 201710341962A CN 107388074 A CN107388074 A CN 107388074A
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- China
- Prior art keywords
- light
- lighting device
- optical scattering
- scattering structure
- emitting component
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/65—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- 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
- F21V3/00—Globes; Bowls; Cover glasses
-
- 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
- F21V7/045—Optical design with spherical surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
There is provided a kind of can either suppress brightness irregularities and obtain lighting device that is homogeneous luminous and can realizing miniaturization and slimming.Lighting device (1) possesses：Multiple light-emitting components (12)；Multiple optical scattering structure bodies (21), it is formed each one-to-one corresponding with multiple light-emitting components (12), and makes each light diffusion projected from multiple light-emitting components (12)；And cap assembly (30), it is configured in a manner of covering multiple light-emitting components (12), with translucency and light diffusing, each of multiple light-emitting components (12) is configured to, towards each of multiple optical scattering structure bodies (21).
Description
Technical field
The present invention relates to lighting device, more particularly to by light emitting diode (LED：Light Emitting Diode) conduct
The lighting device of light source.
Background technology
Light source of the solid-state light emitting elements such as LED as high-efficiency and energy-saving type, is widely applied to lighting device or display etc.
Various equipment.In lighting use, the ceiling lamp or Down lamp of LED building elements such as being arranged on ceiling or wall
It is used for the various lamps such as bulb-shaped lamp, straight lamp etc. various ligthing paraphernalias or as the light source of ligthing paraphernalia.
For example, Patent Document 1 discloses a kind of ligthing paraphernalia of elongate, the ligthing paraphernalia of the elongate possesses：
LED illumination unit and the ligthing paraphernalia shell that can detachably install LED illumination unit, LED illumination unit possess carefully
The substrate of long shape, it is linearly to be arranged configuration by multiple LED on the substrate of the elongate.
Prior art literature
Patent document
The Japanese Unexamined Patent Publication 2005-302484 publications of patent document 1
The Japanese Unexamined Patent Publication 2009-259545 publications of Te Xu documents 2
In the lighting device for employing multiple light-emitting components, in lighting, the granular sensation (bright spot) of light significantly, produces bright
Spend uneven.Especially LED is the stronger spot light of directionality, therefore, multiple LED illumination is being employed as light-emitting component
In device, brightness irregularities are then more notable.Also, the illumination dress of linear elongate is configured to for multiple light-emitting components
For putting, compared with rectangular lighting device is configured to multiple light-emitting components, then it is easier to feel brightness irregularities.
So, in the lighting device for employing multiple light-emitting components, due to producing brightness irregularities, it is accordingly difficult to obtain
Homogeneous is luminous.
Therefore the lighting device of following elongate is proposed, i.e. make the injection light from LED by being arranged in framework
The diffusely reflecting surface in portion is extracting outside after carrying out One Diffusion Process reflection, can so obtain homogeneous and without speck
Luminous (patent document 2) of wire.
But in lighting device disclosed in patent document 2, in order to realize homogeneous light, therefore, to assure that have regulation
Size for the inner space area that is diffused to light.Therefore, in the composition of the lighting device disclosed in patent document 2
In, it is restricted all miniaturizations of device and slimming.
The content of the invention
The present invention is in order to solve above-mentioned problem, and it is an object of the present invention to provide one kind can suppress brightness irregularities and obtain homogeneous
Lighting device luminous and that miniaturization and slimming can be realized.
In order to realize above-mentioned purpose, a form of lighting device involved in the present invention is to possess：Multiple luminous members
Part；Multiple optical scattering structure bodies, it is formed each one-to-one corresponding with the multiple light-emitting component, and makes from the multiple
The light diffusion that each of light-emitting component projects；And cap assembly, it is configured in a manner of covering the multiple light-emitting component,
With translucency and light diffusing, each of the multiple light-emitting component is configured to, towards the multiple smooth diffusion junctions
Each of structure body.
By means of the invention it is possible to suppress brightness irregularities and obtain homogeneous luminous and miniaturization and thin can be realized
The lighting device of type.
Brief description of the drawings
Fig. 1 is the oblique view for the outward appearance for showing the lighting device involved by embodiment.
Fig. 2A is the sectional view for the internal structure that the lighting device involved by embodiment is shown in pattern.
Fig. 2 B are the sectional views of the lighting device involved by the embodiment at Fig. 2A IIB-IIB lines.
Fig. 3 A are the amplification sections for illustrating the major part of the optical effect of the lighting device involved by embodiment
Figure.
Fig. 3 B are the sectional views for illustrating the optical effect of the lighting device involved by embodiment.
Fig. 4 A are the sectional views for the internal structure that the lighting device involved by variation is shown in pattern.
Fig. 4 B are the sectional views of the lighting device involved by the variation at Fig. 4 A IVB-IVB lines.
Symbol description
1 lighting device
10 light emitting modules
11 substrates
12 light-emitting components
12a packaging bodies
12b LED chips
12c seal members
20th, 20A reflection parts
20a inclined planes
21 optical scattering structure bodies
30 cap assemblies
40 base stations
41 bottoms
42 the 1st side of sidewall portion
43 the 2nd side of sidewall portion
50 distal hoods
60 power subsystems
Embodiment
Embodiments of the present invention are illustrated below.Also, the embodiment that will be discussed below is to show this
The preferable specific example of invention.Therefore, the numerical value shown in following embodiment, shape, material, inscape, composition will
The allocation position of element and connected mode etc. are an example, and it is to limit the invention that purport, which is not,.Therefore, for
Under embodiment inscape in the upper concept for showing the present invention technical characteristic in the composition do not recorded
Key element, illustrate as arbitrary inscape.
Each figure is ideograph, not rigorous diagram.Thus, for example engineer's scale in each figure etc. can also need not one
Cause.Also, in each figure, identical on then is formed and assigns identical symbol, and the repetitive description thereof will be omitted or carries out
Simplify.
Also, in this specification and accompanying drawing, X-axis, Y-axis and Z axis represent three axles of three-dimensional orthogonal coordinate system.X
Axle and Y-axis are orthogonal, and are axles orthogonal to Z-axis.
(embodiment)
[composition of lighting device]
The composition of the lighting device 1 involved by embodiment is illustrated using Fig. 1, Fig. 2A and Fig. 2 B.Fig. 1 is to show
Go out the oblique view of the outward appearance of the lighting device 1 involved by embodiment.Fig. 2A is the inside that the lighting device 1 is shown in pattern
The sectional view (sectional view on X/Y plane) of structure, Fig. 2 B are the sectional views of the lighting device 1 at Fig. 2A IIB-IIB lines
(sectional view in YZ planes).
As shown in Figure 1, Figure 2 shown in A and Fig. 2 B, lighting device 1 possesses：Light emitting module 10 with multiple light-emitting components 12,
Cap assembly 30, base station 40, the Yi Jimo of reflection part 20 with multiple optical scattering structure bodies 21, the multiple light-emitting components 12 of covering
End shield 50.
Lighting device 1 in present embodiment is the ligthing paraphernalia of elongate, such as is arranged on house or facility etc. and builds
Build set location as defined in residential equipment such as the building elements such as wall or the ceiling of thing or kitchen, vanity top etc..
Light emitting module 10 is the light source module of lighting device 1, the light of color as defined in irradiation.Though for example, light emitting module 10
So irradiation white light, but be not limited by this.In the present embodiment, light emitting module 10 is elongate.Also, it is built in photograph
The light emitting module 10 of bright device 1 can be one or more.
As shown in Figure 2A and 2B, light emitting module 10 possesses：Substrate 11, the multiple light-emitting components for being configured in substrate 11
12。
Substrate 11 is the installation base plate for installing light-emitting component 12.As substrate 11, such as glass epoxide can be used
The resin materials such as material are the resin substrate of substrate, using metal as substrate and by insulation-coated metallic substrates substrate or oxygen
Change ceramic substrates of the sintered body of ceramic material such as aluminium etc..
In the present embodiment, although substrate 11 is the rectangular substrate of elongate, the shape of substrate 11 is not by this
Limited.Also, although substrate 11 is hard substrate, but not it is limited by this or there is flexible flexible base board.
In addition, though not illustrated, it is provided with is used to direct current being supplied to light-emitting component 12 on the substrate 11
Metal line and the connection terminal for making the luminous electric power of light-emitting component 12 from outside receiving.Metal line is with defined
Pattern is formed on the face of the side of substrate 11.
Each of multiple light-emitting components 12 is, for example, LED light source.As an example, each light-emitting component 12 is each
Surface mount (the SMD encapsulated respectively：Surface Mount Device) type LED element, as shown in Figure 2 B, possess：Tool
There are the packaging body 12a of the white resin of recess, the LED chip 12b by once mounting to the bottom surface of packaging body 12A recess
(bare chip) and the seal member 12c being sealing into packaging body 12A recess.Seal member 12c is such as silicones
Translucent resin material is formed.Seal member 12c is to contain phosphor resin containing fluorophor equiwavelength's coversion material.In this reality
Apply in mode, each light-emitting component 12 is the white light source of B-Y types, as LED chip 12b using the blueness for sending blue light
LED chip, and use the yellow fluorophors such as YAG as the fluorophor for being distributed to seal member 12c.
On the face for the side that multiple light-emitting components 12 are configured in substrate 11 (front).Specifically, multiple light-emitting components
12 are installed into straight line shape along the length direction (X-direction) of substrate 11.Although also, multiple light-emitting components 12 by
Equally spaced configure, but be not limited by this.
Each of multiple light-emitting components 12 is configured to each towards multiple optical scattering structure bodies 21.It is multiple luminous
Element 12 corresponds with multiple optical scattering structure bodies 21.It is formed, an optical scattering structure body 21 and a luminous member
The correspondence of part 12.Specifically, multiple optical scattering structure bodies 21 are along the orientation identical direction with multiple light-emitting components 12
It is configured to a row, the interval (spacing) of adjacent two optical scattering structure bodies 21 and the interval of two adjacent light-emitting components 12
(spacing) is identical.Also, although optical scattering structure body 21 is identical with the quantity of light-emitting component 12, not it is limited by this.
So, multiple light-emitting components 12 and multiple optical scattering structure bodies 21 are individually configured are in line in a juxtaposed fashion
Shape.Also, length direction (X-direction) along cap assembly 30 of multiple light-emitting components 12 and multiple optical scattering structure bodies 21 and
It is configured.
In the present embodiment, each optical scattering structure body 21 is formed, the light with corresponding each light-emitting component 12
Axle is overlapping.Therefore, optical scattering structure body 21 is formed, positioned at the extended line of the center position of the light distribution angle of light-emitting component 12
On.As an example, the optical axis direction of each light-emitting component 12 is the direction parallel with Y-axis.
Each of multiple optical scattering structure bodies 21, make each light diffusion projected from multiple light-emitting components 12.Tool
For body, from the light that light-emitting component 12 projects by with the relative optical scattering structure body 21 to be formed of the light-emitting component 12
Scattered, so as to be spread.
In the present embodiment, each of multiple optical scattering structure bodies 21 passes through each to multiple light-emitting components 12
The light of injection is reflected, so that light spreads.Specifically, the light projected from a light-emitting component 12 reaches and the luminous member
The surface for the optical scattering structure body 21 that part 12 is relative and is formed, is spread by scattering, reflecting.
The shape of optical scattering structure body 21 can make to come the light of self-emission device 12 equably to comprehensive diffusion
Shape.For example, shown in Fig. 2A and Fig. 2 B, by making each optical scattering structure body 21, to be hemispherical, it is ball to make surface configuration
Face, so as to be reflected from the light that light-emitting component 12 projects in optical scattering structure body 21, and so that light can be made to comprehensive row
The mode entered is diffused.
Optical scattering structure body 21 is formed such as the scattered resin material formed of the photodiffusion material by metal microparticle.As
One example, optical scattering structure body 21 are that the white light diffusion particulate (white particles) as photodiffusion material is scattered
To the white resin of the resin material such as polycarbonate or acrylic acid.Also, optical scattering structure body 21 is not limited by resin material,
Can also be by being formed in metallic object of the surface formed with optical reflection films such as Bai Se Tu films.
Also, optical scattering structure body 21 is not limited to the composition for being totally reflected the light of light-emitting component 12 on surface,
Can also be that the light for making light-emitting component 12 incides the internal composition to be scattered.That is, as long as optical scattering structure body 21 is right
The structure that light is diffused, it can also have translucency.
Optical scattering structure body 21 is arranged on reflection part 20.In the present embodiment, multiple optical scattering structure bodies 21 with
And reflection part 20 is formed one, optical scattering structure body 21 is a part for reflection part 20.Therefore, reflection part 20 is adopted
Formed with the identical material of optical scattering structure body 21.In this case, reflection part 20 and optical scattering structure body 21
It is produced for example with white resin by being integrally formed.The reflection part 20 so made has and optical scattering structure body
21 identical light reflectives, reflect the light of light-emitting component 12.
Reflection part 20 has to the inclined inclined plane 20a of multiple light-emitting components 12.Specifically, reflection part 20 is tool
Have on the face of the side of cap assembly 30 of substantially triangle column, there is provided the shape of multiple hemispherical optical scattering structure bodies 21
The reflector of shape, the face of the side of cap assembly 30 of reflection part 20 turn into, to the inclined inclined plane 20a of multiple light-emitting components 12.
Inclined plane 20a relative to the bottom 41 of base station 40 bottom surface, with defined angle tilt.In the present embodiment, inclined plane 20a
It is light reflection surface.
Cap assembly 30 has translucency and light diffusing (light scattering).By optical scattering structure body 21 it is spreading, come from
The light of light-emitting component 12 incides cap assembly 30.Also, carry out self-emission device 12 what the inclined plane 20a of reflection part 20 reflected
Light and also incide cap assembly 30 directly from the light of light-emitting component 12.The light for inciding cap assembly 30 passes through cap assembly 30
And inject to outside.Now, the light for inciding cap assembly 30 is spread (scattering) and injects to outside.
Cap assembly 30 has translucency such as translucent resin material or glass material etc. as polycarbonate or acrylic acid
Material form.
The light diffusing of cap assembly 30, such as by the way that the photodiffusion material of light reflective particle etc. is distributed into translucency tree
Fat material, or formed in the surface of cap assembly 30 (inner surface or outer surface) containing the milky light diffusion such as photodiffusion material
Film is realized.Also, can also without using photodiffusion material, and by the surface of cap assembly 30 carry out superficial makings processing at
Reason etc. and small bumps are formed on surface, or surface printing dot pattern to cap assembly 30 etc., have cap assembly 30
There is light diffusing.
With more than the cap assembly 30 of this composition in a manner of covering multiple light-emitting components 12 (light emitting module 10) and by
Configuration.In the present embodiment, cap assembly 30 is configured to not only covering luminous element 12, and covers reflection part 20.
In the present embodiment, cap assembly 30 is elongate, the orientation of the length direction of cap assembly 30 and multiple light-emitting components 12
It is identical.Also, the cross sectional shape of cap assembly 30 is as shown in Figure 2 B, e.g. U-shaped, and can also be semicircle arcuation,Shape
Shape is linear.
Cap assembly 30 is fixed on base station 40.Specifically, as shown in Figure 2 B, the both ends quilt in the YZ sections of cap assembly 30
It is fixed on the 1st side of sidewall portion 42 and the 2nd side of sidewall portion 43 of base station 40.Also, cap assembly 30 with base station 40 by sticker, be engaged
Snap-in structure or screw etc. are fixed.
Also, it can be filled from the length of the upper bend of the cap assembly 30 in YZ sections and existing a pair of sidewalls according to illumination
1 luminous intensity distribution is put to determine, as shown in Figure 2 B, length can be different, can also be identical.Also, cap assembly 30 can also be configured
To carry out distribution controls to the light from reflection part 20 (optical scattering structure body 21).Gather for example, cap assembly 30 can also have
Light or the lens function of diverging.
Base station 40 is the basic components (framework) for supporting light emitting module 10 and reflection part 20.As shown in Figure 2 B, base station
40 have bottom 41, the 1st side of sidewall portion 42 and the 2nd side of sidewall portion 43.Base station 40 is for example made up of sheet metal, by SPCC
(Steel Plate Cold Commercial；Cold-rolled steel sheet) sheet metal (metallic plate) of system carries out roll forming processing or punching press
Processing etc., to form defined shape.Specifically, base station 40 passes through bottom 41, the 1st side of sidewall portion 42 and the 2nd side of sidewall portion
43rd, it is in "U" shape so as to be formed cross sectional shape.Also, in the present embodiment, although the height ratio of the 1st side of sidewall portion 42
The height of 2nd side of sidewall portion 43 is high, but is not limited by this.
Light emitting module 10 is fixed in base station 40.Specifically, light emitting module 10 is fixed on the 1st side of sidewall portion of base station 40
42.In this case, will in a manner of connecting in the inner surface of the 1st side of sidewall portion 42 with other faces (back side) of substrate 11
Light emitting module 10 is placed in base station 40, by the way that substrate 11 is fixed into the 1st side of sidewall portion 42, so as to the direction of light-emitting component 12
The state of optical scattering structure body 21, base station 40 is set to keep light emitting module 10.
Also, in the fixation reflex part 20 of base station 40.Specifically, with the bottom surface of reflection part 20 and the bottom of base station 40
The state that 41 inner surface contact and the side of reflection part 20 contact with the inner surface of the 2nd side of sidewall portion 43 of base station 40, reflection
Part 20 is fixed on base station 40.
Light emitting module 10 and base station 40 and reflection part 20 and base station 40 can by sticker, the snap-in structure such as be engaged
Or screw etc. is fixed.
In the present embodiment, cap assembly 30 forms framework with base station 40, in the frame being made up of cap assembly 30 and base station 40
Internal storage light-emitting module 10 and reflection part 20.Also, as shown in Figure 2 A, the length and base of the length direction of cap assembly 30
The length of the length direction of platform 40 is almost identical.
Distal hood 50 is the end cap at the both ends for the length direction for covering cap assembly 30 and base station 40.That is, distal hood
50 be two, is installed in a side of length direction and the end of the opposing party of cap assembly 30 and base station 40.
Distal hood 50 snap-in structure or screw etc. such as by sticker, occlusion is fixed on cap assembly 30 and base
Platform 40.Distal hood 50 is, for example, the resin forming product being made up of resin materials such as PBT (polybutylene terephthalate), can also
It is made up of metal material.
, can be with cover portion in the case where the lighting device 1 with this composition is set into the setting faces such as construction material
The top of part 30 configures towards the mode of direction of illumination.In this case it is possible, for example, to the outer of the bottom 41 of base station 40
The surface posture relative with setting face sets lighting device 1, can also with the outer surface of the 1st side of sidewall portion 42 of base station 40 with setting
The relative posture in face is put to set lighting device 1.
Also, in the case where lighting device 1 is set into setting face, base station 40 can also be made to be contacted with setting face, will
Base station 40 is fixed to setting face, and plate is fixedly mounted in addition in setting face, by the way that base station 40 is installed into installing plate, so as to incite somebody to action
Lighting device 1 sets and arrives setting face.
Although also, do not illustrate, lighting device 1 is connected via power line with power subsystem.Power subsystem is that generation is used
In the supply unit for making the luminous electric power of multiple light-emitting components 12, there is power circuit, it is whole by being carried out to the alternating current of commercialization
Stream, smooth and decompression etc., and be converted to the direct current of specified level.Power subsystem is for example with circuit substrate and is pacified
Mounted in multiple circuit blocks (electronic unit) of circuit substrate.Circuit substrate is the printing after the metal lines such as copper foil are patterned
Circuit board (PCB).Multiple circuit blocks are, for example, the resistive elements such as the capacity cells such as electrochemical capacitor, ceramic condenser, resistor, whole
Current circuit element, coil part, choking-winding (choke transformer), noise filter, diode or integrated circuit component etc. half
Conductor element etc..In the direct current of power subsystem generation light emitting module 10 is fed into via power line.Accordingly, light emitting module 10
(light-emitting component 12) is luminous.
[optical effect of lighting device etc.]
Then, using Fig. 3 A and Fig. 3 B, the effect of the optical effect including the lighting device 1 in present embodiment is entered
Row explanation.Fig. 3 A are for illustrating the amplification sectional view of the major part of the optical effect of the lighting device 1 (cutting on X/Y plane
Face figure).Fig. 3 B are for illustrating the sectional view of the optical effect of the lighting device 1 (sectional view in YZ planes).
As shown in Figure 3A and 3B, each light-emitting component 12 corresponds with optical scattering structure body 21, and with direction
The mode of optical scattering structure body 21 and be configured.
Accordingly, the light projected from light-emitting component 12, spreads in corresponding optical scattering structure body 21.In the present embodiment,
The light projected from light-emitting component 12 is reflected by optical scattering structure body 21 and spread.Now, optical scattering structure body 21 not only pair with
The light that the relative light-emitting component 12 of the optical scattering structure body 21 projects is diffused, and can be to from the light-emitting component 12
The light that light-emitting component 12 (for example, light-emitting component 12 positioned at the adjacent both sides of a light-emitting component 12) in addition projects is expanded
Dissipate.
Cap assembly 30 is passed through in the light that optical scattering structure body 21 reflects, and injects to the outside of cap assembly 30.Now, in light
The light that diffusion 21 reflects as shown in Figure 3 B, is diffused, so as to inject to outside when through cap assembly 30.
So, from light-emitting component 12 project light while being spread by optical scattering structure body 21, also expanded by cap assembly 30
Dissipate.That is, the light projected from light-emitting component 12, outside is injected to after optical scattering structure body 21 and cap assembly 30 are spread twice.
Accordingly, even if multiple light-emitting components 12 are discretely configured, the light projected from light-emitting component 12 is due to repeatedly being expanded
Dissipate, therefore, in lighting because the light of multiple light-emitting components 12 and caused by granular sensation (bright spot) then will not be obvious.So, suppress
Brightness irregularities, and the uniformity can be improved, therefore can obtain homogeneous luminous.
Also, by the lighting device 1 of present embodiment, due to without needing larger inside as patent document 2
Space, therefore being capable of easily realization device all miniaturization and slimming.
[summary]
As previously discussed, the lighting device 1 of present embodiment possesses：Multiple light-emitting components 12；Multiple optical scattering structure bodies
21, it is formed each one-to-one corresponding with multiple light-emitting components 12, makes from each injection of multiple light-emitting components 12
Light spreads；And cap assembly 30, it is configured in a manner of covering multiple light-emitting components 12, there is translucency and light to spread
Property.Also, each of multiple light-emitting components 12 is relative with each of multiple optical scattering structure bodies 21 and puts.
Hereby it is possible to the brightness irregularities that have been inhibited is homogeneous luminous, and miniaturization and slim can be realized
The lighting device 1 of change.
Also, in the present embodiment, each of multiple optical scattering structure bodies 21 passes through to from multiple light-emitting components 12
Each light projected reflected, and light is diffused.
So, by making to reflect and spread in optical scattering structure body 21 from the light that light-emitting component 12 projects, so as to make
Luminous flux is reduced, and light can be diffused.Therefore, it is possible to the homogeneous of the brightness irregularities that have been inhibited, big luminous fluxes
It is luminous.
Also, in the present embodiment, multiple optical scattering structure bodies 21 are arranged on reflection part 20.
Accordingly, even in the surface of reflection part 20, due to can also reflect the light for carrying out self-emission device 12, because
This can further suppress brightness irregularities, so as to obtain more homogeneous light.
Moreover, in this case, in the present embodiment, reflection part 20 has inclined to multiple light-emitting components 12
Inclined plane 20a.
Hereby it is possible to the light for carrying out self-emission device 12 is reached near the central portion of optical scattering structure body 21, because
This light for carrying out self-emission device 12 can be easily by the diffusion of equalization.Also, because inclined plane 20a is towards cap assembly 30, because
This, can be such that the light for carrying out self-emission device 12 is reflected in inclined plane 20a, and easily incide cap assembly 30.Therefore, it is possible to
Lighted to more homogeneous.
Also, in the present embodiment, multiple optical scattering structure bodies 21 and reflection part 20 are integrated.
Accordingly, by being integrally formed to multiple optical scattering structure bodies 21 and reflection part 20, so as to easily enter
Row makes.
Also, in the present embodiment, cap assembly 30 is elongate, multiple light-emitting components 12 and multiple optical scattering structures
Length direction of the body 21 along cap assembly 30 and be configured.
Hereby it is possible to realize the lighting device 1 (linear light source) with linear homogeneous luminous elongate.
(variation)
Lighting device involved in the present invention is illustrated based on embodiment above, but, the present invention not by
Above-mentioned embodiment is limited.
For example, in the above-described embodiment, generate for make the power subsystem of the luminous electric power of multiple light-emitting components 12 with
Lighting device 1 is not formed one, but is additionally provided on the outside of lighting device 1, but can also be built in illumination
Device 1.
Specifically, in Fig. 2A and Fig. 2 B, power circuit is formed by the installation of substrate 11 in light emitting module 10
Circuit block, so as to which power subsystem is built in into lighting device 1.In this case, it is provided with to come in lighting device 1
From the alternating current of source power supply.
Also, in the case where power subsystem is built in into lighting device, such as Fig. 4 A and Fig. 4 B lighting device 1A institutes
Show, power subsystem 60 using reflection part 20A as framework, can be configured to reflection part 20A inner space.Power subsystem
60 have：Circuit substrate 61, the multiple circuit blocks 62 for being installed to circuit substrate 61.
In Fig. 4 A and Fig. 4 B, reflection part 20A is reflecting plate, such as can be made up of thin plate.Also, optical scattering structure
Body 21 can be formed by extruding a part for thin plate into hemispherical.In this case, the more of power subsystem 60 are formed
Individual circuit block can be distributed with multiple 21 corresponding positions of optical scattering structure body.Also, with optical scattering structure
In the reflection part 20A of the position correspondence of body 21 area of space, can also configure electrochemical capacitor etc. has the circuit portion of height
Part.
Reflection part 20A is identical with above-mentioned embodiment, can be formed using the insulative resin such as white resin material,
, can also be using metal material come shape as long as being able to ensure that the beeline with the creeping discharge of power subsystem 60 (circuit block)
Into.In this case, reflection part 20A such as can use on surface formed with Bai Se Tu films optical reflection film metal
Plate is formed.
So, as shown in Figure 4A and 4B, by power subsystem 60 being configured in reflection part 20A to hide, from
And compared with the circuit block for forming power circuit is installed into the situation of substrate 11, more homogeneous light can be realized.That is,
If circuit block is installed into substrate 11, the light of light-emitting component 12 can be blocked because of circuit block, so as to produce shade (non-hair
Light portion) and cause brightness irregularities, however, by the way that power subsystem 60 is accommodated in reflection part 20A, so as to prevent because
The generation of brightness irregularities caused by circuit block.Therefore, it is possible to realize the continuous of homogeneous and no non-luminescent part
It is luminous.
Further as shown in Figure 4A and 4B, by being distributed to circuit block, so as to multiple electricity
Heat generating components (integrated circuit etc.) among the circuit unit circuit block (electrochemical capacitor etc.) low with heat resistance separates.Accordingly, by
In the heat ageing that can suppress power subsystem, therefore, it is possible to realize the high lighting device 1A of reliability.
Also, in the above-described embodiment, although the shape of optical scattering structure body 21 is hemispherical, not by this
Limited.For example, it is also possible to be how pyramidal pyrometric cone or quadrangular pyramid etc. be or circular cone etc..
Also, in the above-described embodiment, although the shape of optical scattering structure body 21 is from the surface of reflection part 20
Prominent shape, but be not limited by this.For example, it is also possible to be to make inclined plane 20a roughization of reflection part 20 etc., lead to
Cross and form minute asperities on the surface of reflection part 20, to form optical scattering structure body 21.In such a case, it is possible to it is only to exist
The inclined plane 20a of the part relative with each light-emitting component 12 forms circular or the minute asperities region of rectangle or pin
Minute asperities are formed to the whole inclined plane 20a of reflection part 20.
Also, in the above-described embodiment, lighting device 1 can also have the luminance being used for light emitting module 10
The force-feeling sensor being controlled or illuminance transducer.
Also, in the above-described embodiment, lighting device 1 has dimming function.Also, lighting device 1 can also have
There is toning function.In this case, light emitting module 10 is for example with the different multiple light-emitting components 12 of colour temperature.
Also, in the above-described embodiment, although light emitting module 10 is to employ SMD type as light-emitting component 12
The LED module of the SMD type of LED element, but be not limited by this.For example, light emitting module 10 can also be as light-emitting component
12 and use be mounted with LED chip COB (Chip On Board) type LED module.In this case, light emitting module 10
Composition include：Substrate 11, the one or more LED chips (bare chip) for being directly installed on substrate 11 and to LED core
What piece was sealed contains the seal members such as phosphor resin.
Also, in the above-described embodiment, although lighting device 1 is elongate, not it is limited by this.For example,
Lighting device 1 can also be circular or quadrangle, or can be circular.
In addition, without departing from the spirit of the invention, by those skilled in the art it is conceivable that various changes
Shape is implemented in form obtained from embodiment and variation, or to the inscape in embodiment and variation with
And function be combined obtained from form be all contained in the scope of the present invention.
Claims (7)
1. a kind of lighting device,
The lighting device possesses：
Multiple light-emitting components；
Multiple optical scattering structure bodies, it is formed each one-to-one corresponding with the multiple light-emitting component, and makes from described more
The light diffusion that each of individual light-emitting component projects；And
Cap assembly, it is configured in a manner of covering the multiple light-emitting component, there is translucency and light diffusing,
Each of the multiple light-emitting component is configured to, towards each of the multiple optical scattering structure body.
2. lighting device as claimed in claim 1,
Each of the multiple optical scattering structure body passes through to being carried out from each light projected of the multiple light-emitting component
Reflection, so that light spreads.
3. lighting device as claimed in claim 2,
The lighting device possesses that there is provided the reflection part of the multiple optical scattering structure body.
4. lighting device as claimed in claim 3,
The reflection part has to the inclined inclined plane of the multiple light-emitting component.
5. the lighting device as described in claim 3 or 4,
The reflection part is framework,
Power subsystem is configured in the inner space of the reflection part, the power subsystem is generated for making the multiple light-emitting component
Luminous electric power.
6. the lighting device as described in claim 3 or 4,
The multiple optical scattering structure body and the reflection part are integrated.
7. the lighting device as described in claim 3 or 4,
The cap assembly is in elongate shape,
The length direction configuration of the multiple light-emitting component and the multiple optical scattering structure body along the cap assembly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016099068A JP6775180B2 (en) | 2016-05-17 | 2016-05-17 | Lighting device |
| JP2016-099068 | 2016-05-17 |
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| CN107388074A true CN107388074A (en) | 2017-11-24 |
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| CN201710341962.7A Pending CN107388074A (en) | 2016-05-17 | 2017-05-16 | Lighting device |
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|---|---|---|---|---|
| JP7274820B2 (en) * | 2018-02-02 | 2023-05-17 | 三菱電機株式会社 | lighting equipment |
| WO2024006948A1 (en) * | 2022-06-30 | 2024-01-04 | Elemental LED, Inc. | Linear luminaire |
| US11821597B1 (en) | 2022-06-30 | 2023-11-21 | Elemental LED, Inc. | Linear luminaire |
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| TWM367286U (en) * | 2008-12-22 | 2009-10-21 | Hsin I Technology Co Ltd | Structure of LED lamp tube |
| CN102032528A (en) * | 2009-09-18 | 2011-04-27 | 敦网光电股份有限公司 | Lighting device and light spreading plate |
| US20110103053A1 (en) * | 2009-11-02 | 2011-05-05 | Ledtech Electronics Corp. | LED Lighting Device |
| US20130188347A1 (en) * | 2012-01-22 | 2013-07-25 | Ecolivegreen Corp. | LED Light Fixture |
| CN103574351A (en) * | 2012-07-30 | 2014-02-12 | 船井电机株式会社 | Lighting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009067098A (en) * | 2007-09-10 | 2009-04-02 | Harison Toshiba Lighting Corp | Lighting system |
| CN101994940B (en) * | 2009-08-19 | 2015-04-01 | Lg伊诺特有限公司 | Lighting device |
| JP2012174634A (en) * | 2011-02-24 | 2012-09-10 | Sharp Corp | Light source module and optical member |
| JP2013077454A (en) * | 2011-09-30 | 2013-04-25 | Sanyo Electric Co Ltd | Illumination device |
| JP6100645B2 (en) * | 2013-08-21 | 2017-03-22 | 株式会社ロイヤル | Display shelf lighting equipment |
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2016
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- 2017-05-16 CN CN201710341962.7A patent/CN107388074A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM367286U (en) * | 2008-12-22 | 2009-10-21 | Hsin I Technology Co Ltd | Structure of LED lamp tube |
| CN102032528A (en) * | 2009-09-18 | 2011-04-27 | 敦网光电股份有限公司 | Lighting device and light spreading plate |
| US20110103053A1 (en) * | 2009-11-02 | 2011-05-05 | Ledtech Electronics Corp. | LED Lighting Device |
| US20130188347A1 (en) * | 2012-01-22 | 2013-07-25 | Ecolivegreen Corp. | LED Light Fixture |
| CN103574351A (en) * | 2012-07-30 | 2014-02-12 | 船井电机株式会社 | Lighting device |
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| JP2017208205A (en) | 2017-11-24 |
| JP6775180B2 (en) | 2020-10-28 |
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Application publication date: 20171124 |