CN107763516A - Ligthing paraphernalia - Google Patents
Ligthing paraphernalia Download PDFInfo
- Publication number
- CN107763516A CN107763516A CN201710695367.3A CN201710695367A CN107763516A CN 107763516 A CN107763516 A CN 107763516A CN 201710695367 A CN201710695367 A CN 201710695367A CN 107763516 A CN107763516 A CN 107763516A
- Authority
- CN
- China
- Prior art keywords
- light
- section
- light guide
- reflecting surface
- injection part
- 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
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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
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
-
- 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
- F21V5/02—Refractors for light sources of prismatic 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
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The ligthing paraphernalia for the utilization ratio that the light for carrying out self-emission device can be improved is provided.Ligthing paraphernalia (2) possesses the second light-emitting component (46) and for the light for coming from the second light-emitting component (46) to be guided to the light guide plate (22) to prescribed direction.Light guide plate (22) includes：Incident section (22c), it is incident for the light from the second light-emitting component (46)；Injection part (22d), project the light for inciding incident section (22c)；And light guide section (22b), injection part (22d) is extended to from incident section (22c) bending, there is the first reflecting surface (70) and the second reflecting surface (72) in outer peripheral face.The parabola with focus F is formed in section of first reflecting surface (70) when light guide section (22b) is cut off with virtual plane, second reflecting surface (72) is configured in the side close to injection part (22d) than the first reflecting surface (70) in cross section, and is configured in the position with intersecting by the first reflecting surface (70) and focus F virtual line (76,78).
Description
Technical field
The ligthing paraphernalia of light guide plate is the present invention relates to the use of.
Background technology
The ligthing paraphernalia of light guide plate be make use of by known (for example, referring to patent document 1).Light guide plate, which possesses, carrys out self-luminous
The incident incident section of the light of element, the injection part for the light injection for making to incide incident section and formation are in incident section and injection part
Between light guide section.From incident section, bending extends to injection part to light guide section.The light of light guide section is incided in light guide section from incident section
Outer peripheral face (convex surface) reflect and be directed into injection part.
Patent document 1：Japanese Unexamined Patent Publication 2013-101858 publications
However, the problem present in the conventional ligthing paraphernalia is, the propagation loss of light is produced in light guide section, is come from
The utilization ratio of the light of light-emitting component reduces.
The content of the invention
In view of the problem of such, it is an object of the present invention to provide the utilization effect that can improve the light for carrying out self-emission device
The ligthing paraphernalia of rate.
In order to solve described problem, the ligthing paraphernalia that one embodiment of the present invention is related to, possess：Light-emitting component；With
And light guide plate, for guiding the light from the light-emitting component to prescribed direction, the light guide plate has：Incident section, for from
The light of the light-emitting component is incident；Injection part, project the light for inciding the incident section；And light guide section, formed described
Between incident section and the injection part, from the incident section, bending extends to the injection part, and the light guide section is on outer peripheral face
It is anti-with the first reflecting surface and second for reflecting and guiding the light for inciding the incident section towards the injection part
Face is penetrated, is formed on the section that first reflecting surface obtains when cutting off the light guide section with virtual plane and has focal parabolic
Line, second reflecting surface are configured in than first reflecting surface on the section close to the side of the injection part, and
And it is configured in the position with intersecting through the virtual line of first reflecting surface and the focus.
The ligthing paraphernalia that one embodiment of the present invention is related to can improve the utilization ratio for the light for carrying out self-emission device.
Brief description of the drawings
Fig. 1 is the stereogram of the outward appearance for the floor side for showing the ligthing paraphernalia that embodiment is related to.
Fig. 2 is the stereogram of the outward appearance for the ceiling side for showing the ligthing paraphernalia that embodiment is related to.
Fig. 3 is the exploded perspective view for showing to pull down ligthing paraphernalia in the state of diffusion shell, embodiment is related to.
Fig. 4 is to show to pull down luminaire in the state of Decorative Cover, light guide plate and reflection part, embodiment is related to
The exploded perspective view of tool.
Fig. 5 is to decompose the exploded perspective view for showing the ligthing paraphernalia that embodiment is related to.
Fig. 6 is Fig. 1 line VI -- VI sectional view.
Fig. 7 is the sectional view for the part that amplification shows Fig. 6.
Fig. 8 is to show to omit in the state of Decorative Cover, light guide plate, reflection part and diffusion shell, embodiment to be related to
Ligthing paraphernalia plan.
Fig. 9 is the plane for showing also to omit ligthing paraphernalia in the state of lens cap, embodiment is related to from Fig. 8
Figure.
Figure 10 is to show the figure for being extracted light guide plate that embodiment is related to.
Figure 11 is Figure 10 (a) XI-XI line sectional views.
Figure 12 is the cross-sectional perspective view for the incident section that amplification shows the light guide plate that embodiment is related to.
Figure 13 is the stereogram for the part that amplification shows the light guide plate that the variation of embodiment is related to.
Symbol description
2 ligthing paraphernalias
22nd, 22A light guide plates
22a opening portions
22b light guide sections
22c incident sections
22d injection parts
22e branches light guide section
46 second light-emitting components (light-emitting component)
58th, 64 central shaft
60 prism shapes (minute structure portion)
62 prism structures
66 rakes
68 bending sections
70 first reflectings surface
72nd, the reflectings surface of 72A second
76th, 78 virtual line
80th, 80A mat surfaces
82 recesses
F focuses
Embodiment
Hereinafter, embodiments of the present invention are illustrated.Moreover, embodiments described below, shows that the present invention's is preferred
A specific example.Therefore, numerical value shown in following embodiment, shape, material, inscape, inscape are matched somebody with somebody
Seated position and connection form etc. are an examples, rather than limit the purport of the present invention.Therefore, for following embodiment
Inscape in, show the present invention upper concept embodiment in do not have record inscape, as any
Inscape and illustrated.
Also, each figure is ideograph, the figure not necessarily tightly shown.Also, in each figure, to substantial phase
Same structure encloses identical symbol, and the explanation of repetition is omitted or simplified.
(embodiment)
Hereinafter, the ligthing paraphernalia that embodiment is related to is illustrated.
[structures of 1. ligthing paraphernalias]
[overall structure of 1-1. ligthing paraphernalias]
First, referring to figs. 1 to Fig. 5, the overall structure for the ligthing paraphernalia 2 that embodiment is related to is illustrated.Fig. 1 is to show to implement
The stereogram of the outward appearance of the floor side for the ligthing paraphernalia 2 that mode is related to.Fig. 2 is to show the ligthing paraphernalia 2 that embodiment is related to
The stereogram of the outward appearance of the side of ceiling 4.Fig. 3 is to show to pull down luminaire in the state of diffusion shell 26, embodiment is related to
The exploded perspective view of tool 2.Fig. 4 is to show to pull down in the state of Decorative Cover 20, light guide plate 22 and reflection part 24, embodiment party
The exploded perspective view for the ligthing paraphernalia 2 that formula is related to.Fig. 5 is to decompose the exploded perspective for showing the ligthing paraphernalia 2 that embodiment is related to
Figure.
Ligthing paraphernalia 2 is, for example, be arranged on the buildings such as house it is ceiling 4 (reference picture 5), for illuminating building
The ceiling light in the space 6 (with reference to Fig. 6 described later) of the inside of thing.As Fig. 1 to Fig. 5 is shown, ligthing paraphernalia 2 possesses appliance body
8th, utensil installing component 10, power subsystem 12, reflector 14, light emitting module 16, lens cap 18, Decorative Cover 20, light guide plate 22, anti-
Penetrate part 24 and diffusion shell 26.
Hereinafter, referring to figs. 1 to Figure 12, each inscape of detailed description ligthing paraphernalia 2.Moreover, in Fig. 1 into Figure 12
The minus side of Z axis represents the side of ceiling 4, and the positive side of Z axis represents that floor (does not illustrate) side.For convenience of description, in Fig. 1 and figure
3 into Fig. 7, so that opposite posture shows ligthing paraphernalia 2 up and down with posture during common use.
[1-2. appliance bodies]
Reference picture 2, Fig. 5, Fig. 6 and Fig. 7, illustrate appliance body 8.Fig. 6 is Fig. 1 line VI -- VI sectional view.Fig. 7 is to put
The sectional view of the big part for showing Fig. 6.
Appliance body 8 is the housing for Power Support unit 12 and reflector 14.As Fig. 2, Fig. 5 and Fig. 6 are shown,
Appliance body 8 is formed, and has the opening portion 8a of toroidal ring-type in central portion.As Fig. 5 and Fig. 7 are shown, in utensil
The peripheral part of main body 8, formed with the flange part 8b for supporting reflector 14.Moreover, appliance body 8 is for example to aluminium sheet or steel
The metal sheets such as plate carry out punch process, so as to be formed described shape.
As Fig. 6 is shown, in the opening portion 8a of appliance body 8 edge part, it is fixed with for appliance body 8 to be installed into device
Has the retainer 28 of installing component 10 (aftermentioned).Retainer 28 from the opening portion 8a of appliance body 8 edge part prolong to floor side
Stretch.As be described hereinafter, utensil installing component 10 is detachably entrenched in the inside of retainer 28.
And then as Fig. 5 and Fig. 6 are shown, in the face (face of floor side) of a side side of appliance body 8, it is fixed with and is used for
Support the insulation shell 30 of reflector 14.Insulation shell 30 is formed the tubular of substantially rectangular shape, is configured in encirclement and keeps
The position of device 28.Insulation shell 30 is formed by the Ins. ulative material such as resin.
And then as Fig. 2 and Fig. 6 are shown, in the face of the opposing party side of appliance body 8 (face of the side of ceiling 4), it is provided with
By the multiple buffer units 32 formed such as polyurethane.Circumference of multiple buffer units 32 along appliance body 8 is configured as
At equal intervals.When ligthing paraphernalia 2 is arranged on ceiling 4 as be described hereinafter, multiple buffer units 32 are sandwiched in appliance body 8 and smallpox
Between plate 4, so as to suppress the loosening of appliance body 8.
[1-3. utensils installing component]
Then, reference picture 2, Fig. 5 and Fig. 6, utensil installing component 10 is illustrated.Utensil installing component 10 is used for utensil
Main body 8 is detachably installed to the connector for the ceiling rose main body 34 (reference picture 5) for being arranged on ceiling 4.
As Fig. 2, Fig. 5 and Fig. 6 are shown, utensil installing component 10 is formed generally a cylindrical shape, is detachably fitted together to
In the inside of the retainer 28 of appliance body 8.Also, utensil installing component 10 is detachably installed to ceiling rose master
Body 34.
When ligthing paraphernalia 2 is set into ceiling 4, utensil installing component 10 is installed to ceiling lamp line by user first
Box main body 34.Then, user is in a manner of utensil installing component 10 is inserted into the inside of retainer 28 of appliance body 8, by device
Tool main body 8 pushes the side of ceiling 4 to, so that retainer 28 is chimeric with utensil installing component 10.Accordingly, appliance body 8 is via device
Have installing component 10 and ceiling rose main body 34, be installed in ceiling 4, ligthing paraphernalia 2 is arranged on ceiling 4.
Moreover, commercialization of the ceiling rose main body 34 via electric wire (not illustrating) and the back side for being configured in ceiling 4
Power supply (not illustrating) electrically connects.Ligthing paraphernalia 2 is arranged on ceiling 4, so as to which the alternating current from source power supply is via electric wire
And ceiling rose main body 34 provides and arrives ligthing paraphernalia 2.
[1-4. power subsystems]
Then, reference picture 5, power subsystem 12 is illustrated.Power subsystem 12 is to be used to generate to be used to make light emitting module 16 luminous
Electric power unit.As Fig. 5 is shown, power subsystem 12 has substrate 36 and is installed in multiple circuit blocks of substrate 36
38。
Substrate 36 is the printed wiring board for installing multiple circuit blocks 38, is formed substantially L-shaped.Substrate 36 with
Multiple circuit blocks 38 are installed in the face of a side side of appliance body 8 towards the mode of floor side.
Each of multiple circuit blocks 38 is to form the power supply for being used for generating the electric power for being used for making light emitting module 16 luminous
The power supply circuit block of circuit.Multiple circuit blocks 38 include the electric capacity member such as a) electrolytic capacitor or ceramic capacitor
The resistive elements such as part, b) resistor, c) convertor circuit element, d) coil part, e) choke coil (choke transformer), f) noise filter
Semiconductor element such as ripple device, g) diode or integrated circuit component etc..
The convert alternating current provided from the source power supply via electric wire is direct current by multiple circuit blocks 38.Multiple electricity
The direct current that circuit unit 38 generates provides and arrives light emitting module 16, so as to which light emitting module 16 is luminous.
Moreover, in multiple circuit blocks 38, in addition to described power supply circuit block, can also include forming it
The circuit block of his circuit.For example, multiple circuit blocks 38 can also include the driving for forming light adjusting circuit or booster circuit etc.
With circuit block, or, the communication circuit block (communication module) etc. for forming telecommunication circuit can also be included.
[1-5. reflectors]
Then, reference picture 4 illustrates reflector 14 to Fig. 7.Reflector 14 is for being carried out to the light from light emitting module 16
The cover of reflection.Moreover, reflector 14 also serves as playing work(for the radiator for radiating to the heat from light emitting module 16
Energy.
As Fig. 4 to Fig. 6 is shown, reflector 14 is formed, and has the opening portion 14a of substantially rectangular shape ring in central portion
Shape.As Fig. 7 is shown, reflector 14 peripheral part formed with flange part 14b.Reflector 14 is to thin such as aluminium sheet or steel plate
Metallic plate carries out punch process, so as to be formed described shape.Moreover, on the face (floor of a side side of reflector 14
The face of side), in order to improve reflectivity to improve light extraction efficiency, and white coating is coated with, or, reflective metal material is deposited
Material.
As Fig. 6 and Fig. 7 are shown, reflector 14 is configured as, and covers the face of a side side of appliance body 8.Reflector 14
Flange part 14b by multiple screws 40 be arranged on appliance body 8 flange part 8b.Also, the opening portion 14a's of reflector 14
Edge part is supported on the leading section of insulation shell 30.
[1-6. light emitting modules]
Then, reference picture 4 illustrates light emitting module 16 to Fig. 9.Fig. 8 is to show to omit Decorative Cover 20, light guide plate 22, reflection
The plan of ligthing paraphernalia 2 in the state of part 24 and diffusion shell 26, embodiment is related to.Fig. 9 is shown from Fig. 8
The plan of ligthing paraphernalia 2 also in the state of omission lens cap 18, embodiment is related to.
Light emitting module 16 is the light source for example for sending white light.As Fig. 4 to Fig. 9 is shown, light emitting module 16 has multiple
Substrate 42 and installed in multiple first light-emitting components 44 of each of multiple substrates 42 and multiple second light-emitting components 46
(example of light-emitting component).
As Fig. 9 is shown, substrate 42 is for installing multiple first light-emitting components 44 and multiple second light-emitting components 46
Printed wiring board, it is formed arc-shaped.Each of multiple substrates 42 in a manner of the opening portion 14a for surrounding reflector 14,
The face of a side side of reflector 14 is arranged on by multiple screws 48.Accordingly, multiple substrates 42 are along light guide plate 22 (aftermentioned)
Circumferentially it is arranged and is configured to ring-type.
As Fig. 9 is shown, at the circumferential both ends of substrate 42, a pair of connectors 50 is separately installed with.Adjacent pair base
The opposed pairs connector 50 of plate 42 is electrically connected to each other via lead 52.Also, pair of other adjacent pair substrates 42
The a pair of connectors 50 put electrically connects via lead 54 with the substrate 36 of power subsystem 12.
Moreover, for substrate 42, for example, resin substrate, metal substrate, ceramic substrate or glass substrate etc. can be utilized.
Also, substrate 42 is not limited only to rigid substrates or flexible substrate.
Multiple first light-emitting components 44 are installed in the inner peripheral portion of substrate 42.Specifically, multiple first light-emitting components 44
In the inner peripheral portion of substrate 42 3 row are radially configured in substrate 42.In each row, multiple first light-emitting components 44 are configured
To be configured with interval in the circumference of substrate 42.Accordingly, it is overall as light emitting module 16, multiple first light-emitting components
44 are configured as ring-type.
Multiple second light-emitting components 46 are installed in the peripheral part of substrate 42.Specifically, multiple second light-emitting components 46
In the peripheral part of substrate 42 there is compartment of terrain to be configured as such as only 1 row in the circumference of substrate 42.Accordingly, as light emitting module
16 is overall, and multiple second light-emitting components 46 are configured as ring-type.
Each of first light-emitting component 44 and the second light-emitting component 46 are the surface installations of for example packed body
(SMD：Surface Mount Device) type White LED (Light Emitting Diode) element.That is, first
Each of the light-emitting component 46 of light-emitting component 44 and second includes packaging body (container), the quilt of the white resin with recess
LED chip and the seal member that is encased in the recess of packaging body in of the once mounting in the bottom surface of the recess of packaging body.
LED chip is for example to send the blue LED die of blue light.It is sharp to contain in seal member using the blue light from blue LED die
Light is encouraged to send the yellow fluorophors such as the YAG of fluorescent (yttrium-aluminium-garnet).
In this way, each of the first light-emitting component 44 and the second light-emitting component 46 are glimmering by blue LED die and yellow
The White LED element for the B-Y types that body of light is formed.Specifically, the yellow fluorophor contained in seal member is absorbed from blueness
A part for the blue light of LED chip, so as to encourage to release sodium yellow.The sodium yellow of the releasing and do not inhaled by yellow fluorophor
The blue light of receipts is mixed, so as to produce white light.In this way, penetrated from each of the first light-emitting component 44 and the second light-emitting component 46
Go out white light.
Moreover, in the present embodiment, the first light-emitting component 44 and the second light-emitting component 46 all send white light, but
The light of mutually different color (wavelength) can be sent.For example, it is also possible to make the first light-emitting component 44 send white light, make the second hair
Optical element 46 sends bulb coloured light.
[1-7. lens caps]
Then, reference picture 3 illustrates lens cap 18 to Fig. 8.Lens cap 18 is to be used to make to come from multiple first light-emitting components 44
The light of each light distribution angle expand optical component.
As Fig. 3 to Fig. 8 is shown, lens cap 18 is formed ring-type, by material (such as the transparent propylene with translucency
Acid resin etc.) formed.As Fig. 8 is shown, lens cap 18 is in a manner of covering the inner peripheral portion of each of multiple substrates 42, by more
Individual screw 56 is arranged on the face of a side side of reflector 14.Now, lens cap 18 covers the multiple of each of multiple substrates 42
First light-emitting component 44, also, multiple second light-emitting components 46 of each of multiple substrates 42 are not covered.
In lens cap 18, multiple lens section 18a have been correspondingly formed with multiple first light-emitting components 44.From multiple first
Lens section 18a corresponding to the light of each transmission of light-emitting component 44.Now, each of multiple lens section 18a makes transmission
The light distribution angle of light expands.
[1-8. Decorative Covers]
Then, reference picture 5 illustrates Decorative Cover 20 to Fig. 7.Decorative Cover 20 is to be used to cover reflector 14 and device from side
The cover for having main body 8 to be decorated.
As Fig. 5 to Fig. 7 is shown, Decorative Cover 20 is formed ring-type.Specifically, Decorative Cover 20 is from one end (floor side
End) expanded to the other end (end of the side of ceiling 4) it is horn-like, be configured as from side cover reflector 14 and
Appliance body 8.Moreover, Decorative Cover 20 is formed such as the polystyrene resin as white.
As Fig. 6 and Fig. 7 are shown, in the one end of Decorative Cover 20, the radially inner side and decoration of oriented Decorative Cover 20 are formed
The supporting part 20a for the ring-type that the other end of cover 20 bends and extended.Supporting part 20a support light guide plate 22 light guide section 22b (after
State) inner peripheral surface.
In the inner surface of Decorative Cover 20, the teat 20b of the ring-type formed with the all-round extension in Decorative Cover 20.Teat 20b
Contacted with the flange part 14b of reflector 14.Accordingly, Decorative Cover 20 is positioned relative to reflector 14.
[1-9. light guide plates]
Then, referring to figs. 1 to Fig. 7 and Figure 10, light guide plate 22 is illustrated.Figure 10 is to show that what embodiment was related to is extracted
The figure of light guide plate 22.Figure 10 (a) is the stereogram for showing light guide plate 22, and Figure 10 (b) is Figure 10 (a) X-X lines section
Stereogram.
Light guide plate 22 is for the light of each from multiple second light-emitting components 46 of incidence to be guided to regulation side
To the optical component of (towards the direction in space 6).As Fig. 1 to Fig. 7 and Figure 10 (a) is shown, the global shape of light guide plate 22
It is formed, there is the opening portion 22a of circular shape ring-type (annular) in central portion.Light guide plate 22 have light guide section 22b,
Incident section 22c, injection part 22d and multiple branch's light guide section 22e.Moreover, light guide plate 22 by with translucency material (such as
Transparent acrylic resin etc.) formed.
It is multiple with trickle formed with being configured with the circumferential in part or all of formation injection part 22d face
The prism shape 60 (example in minute structure portion) of the prism of the concave shape of cone shape.Moreover, the shape of the prism is not
It is limited to concave shape or convex form.That is, prism shape 60 by concave shape or convex form at least one plane or
The prism facets that curved surface makes light pass through and reflect are formed.Also, the shape of the prism either concave shape and convex form which
One side, is not limited only to cone shape or such as rectangular pyramid shape, or or has an asymmetric recess
Cone shape, a part for rectangular pyramid shape or ring-shaped isoclinic face has and passes through and shape of function of reflection etc..And
And prism shape 60 is in the case where prism is formed convex form or especially with containing with scattering
The printed matter that the methods of ink of grain or pigment passes through screen painting is formed.Or prism shape 60 can also pass through embossing
The mat surface of the formation such as processing.Also, on the configuration of prism, can also be arranged at equal intervals along specific direction,
Can be with random arrangement.Also, in the face for forming injection part 22d, it is not necessary to prism is configured on whole faces, can also be only one
Part configuration prism.
As Fig. 6 and Fig. 7 are shown, light guide section 22b is formed between incident section 22c and injection part 22d, from one end
(end of the side of ceiling 4) expands to horn-like to the other end (end of floor side).That is, with light guide section 22b
Compared to radially inner side formed with the opening portion 22a, multiple first light-emitting components 44 and lens cap 18 is configured in and opening
Position opposed portion 22a.Light guide section 22b guides light to the other end from one end.Light guide section 22b inner peripheral surface (concave surface) by
The supporting part 20a supports of Decorative Cover 20.Light guide section 22b outer peripheral face (convex surface) by reflection part 24 reflecting part 24a (aftermentioned)
Covering.That is, light guide section 22b be clamped in the supporting part 20a of Decorative Cover 20 and reflection part 24 reflecting part 24a it
Between.
One end all-round of the incident section 22c in light guide section 22b is formed ring-type, from light guide section 22b one end phase
Extend substantially in parallel for opening portion 22a central shaft 58 (Z-direction).Incident section 22c is configured in and the multiple second hairs
Optical element 46 is opposed and close proximity.
Injection part 22d is extended from the all-round radial outside to light guide plate 22 of light guide section 22b the other end with ring-type.Penetrate
Go out that portion 22d is prominent to the radial outside of light guide plate 22 compared with the one end of Decorative Cover 20, be configured as approximate horizontal posture
(that is, relative to the almost parallel posture of ceiling 4).The face (face of floor side) of an injection part 22d side side is that light projects
Face.As Fig. 7 is shown, in the surface of injection part 22d the opposing party side (face of the side of ceiling 4), formed with the prism shape 60.
As Fig. 5 to Fig. 7 is shown, multiple branch's light guide section 22e from radially inner side from incident section 22c to light guide plate 22 (that is, with
The different direction in direction of light guide section 22b extensions) branch's extension.Multiple branch's light guide section 22e accordingly exist with multiple substrates 42
Incident section 22c circumference configures across interval.Each of multiple branch's light guide section 22e is pacified by screw 48 (reference picture 8)
Mounted in the defined region of the corresponding substrate 42 (area between multiple first light-emitting components 44 and multiple second light-emitting components 46
Domain).
Here, the feature structure of light guide plate 22 is described in more detail to Figure 12 for reference picture 10.Figure 11 is Figure 10
(a) XI-XI line sectional views.Figure 12 is the cross section stereo for the incident section 22c that amplification shows the light guide plate 22 that embodiment is related to
Figure.Moreover, in fig. 11, the shade for illustrating that section is omitted, in order to illustrate.
As Figure 11 and Figure 12 are shown, incident section 22c has a part for the diverging light from the second light-emitting component 46
It is transformed to relative to defined direction and the prism structure 62 of parallel light.By light guide section 22b with including in the 22a of opening portion
The section (Figure 11 and the section shown in Figure 12) of the virtual plane cut-out of mandrel 58, the central shaft 64 of prism structure 62 relative to
Vertical (Z-direction) extends substantially in parallel.
It is asymmetric relative to central shaft 64 in the section also, as Figure 12 is shown, prism structure 62 is formed.
That is in the section, the ratio central shaft 64 of prism structure 62 close to the convex surface 62a of a side side curvature, with prism knot
The ratio central shaft 64 of structure 62 is different close to the convex surface 62b of the opposing party side curvature.
As Figure 11 is shown, light guide section 22b has rake 66 and bending section 68.
As Figure 11 and Figure 12 are shown, rake 66 is from incident section 22c for the central shaft 64 of prism structure 62
Extension is tilted to close to injection part 22d direction.Moreover, relative to the tilt angle theta of the central shaft 64 of rake 66 for for example
About 10 °.
As Figure 11 is shown, bending section 68 extends to injection part 22d from the bending of rake 66.Outer peripheral face in bending section 68
(convex surface), formed with the first reflecting surface 70 for reflecting and guiding the light for inciding incident section 22c to injection part 22d,
Two reflectings surface 72 and the 3rd reflecting surface 74.
First reflecting surface 70 forms the parabola with focus F in the section.First reflecting surface 70 is formed on from curved
The boundary position of pars convoluta 68 and rake 66 is to the scope than focus F close to the position of incident section 22c side.
Second reflecting surface 72 forms the curve such as parabola or circular arc in the section.Second reflecting surface 72 is formed on
From bending section 68 and injection part 22d boundary position to the scope than focus F close to the position of injection part 22d side.Also
It is to say, the second reflecting surface 72 is configured in than the first reflecting surface 70 in the section close to injection part 22d side.
More specifically, the second reflecting surface 72 be configured in the section with by the first reflecting surface 70 and focus F
The position that virtual line (being shown in dash-dot lines in Figure 11) intersects.In other words, the second reflecting surface 72 is formed in the section
By one end of incident section 22c sides by the first reflecting surface 70 and focus F virtual line 76 and passing through the first reflecting surface 70
The other end of injection part 22d sides and the region clamped of focus F virtual line 78.
(a) and (b) such as Figure 10 is shown, in the convex side of the second reflecting surface 72, mat surface is formed by bumps processing
80.Now, mat surface 80 can also be formed on the region-wide of the second reflecting surface 72, can also be only formed in the second reflecting surface
72 part.Also, the concavo-convex processing can also be replaced, and such as Embossing processing is performed to the second reflecting surface 72 or sandblasted
The random mat surfaceization such as processing is handled to form mat surface 80.
3rd reflecting surface 74 forms the curve such as parabola or circular arc in the section.3rd reflecting surface 74 is formed on
Between first reflecting surface 70 and the second reflecting surface 72.Moreover, the first reflecting surface 70, the second reflecting surface 72 and the 3rd reflecting surface 74
Smooth curve is generally formed on the section.
As Figure 11 is shown, in light guide section 22b inner peripheral surface side, between light guide section 22b and injection part 22d, formed with recessed
Portion 82.Recess 82 is formed ring-type in the all-round of light guide section 22b the other end.Injection part 22d formation has recess 82
The thickness (size of Z-direction) in region, the thickness in the region for not forming recess 82 than injection part 22d are small.
[1-10. reflection parts]
Then, reference picture 4 illustrates reflection part 24 to Fig. 7.Reflection part 24 is for the light guide section in light guide plate 22
The part that the light that 22b inside is directed is reflected.
As Fig. 4 to Fig. 7 is shown, reflection part 24 is formed ring-type.Specifically, reflection part 24 has reflecting part
24a and press section 24b.Moreover, reflection part 24 such as polycarbonate resin by forming.
Reflecting part 24a expands to loudspeaker from one end (end of the side of ceiling 4) to the other end (end of floor side)
Shape.Reflecting part 24a concave side formed with reflecting surface.The light guide section 22b's of reflecting part 24a concave side covering light guide plate 22
Outer peripheral face.
The all-round radially inner side to reflection part 24 of press section 24b from reflecting part 24a one end is extended with ring-type.Press
Splenium 24b is arranged on the defined region of each of multiple substrates 42 together with multiple branch's light guide section 22e by screw 48.
Accordingly, as Fig. 6 and Fig. 7 are shown, press section 24b leading section presses the peripheral part of lens cap 18 to multiple substrates 42.
[1-11. diffusion shells]
Then, reference picture 1 and Fig. 3 to Fig. 7, illustrate diffusion shell 26.Diffusion shell 26 is to be used to make from the multiple first hairs
The cover of the light of each diffusion of optical element 44.
As Fig. 1 and Fig. 3 to Fig. 7 is shown, diffusion shell 26 is detachably arranged on reflection part 24, is configured as covering
The opening portion 22a of light guide plate 22.As Fig. 3 is shown, diffusion shell 26 is pulled down from reflection part 24, so as to which lens cap 18 is from light guide plate
22 opening portion 22a exposes.As Fig. 6 and Fig. 7 are shown, diffusion shell 26 has diffusion part 26a and installation portion 26b.
Diffusion part 26a be formed it is discoideus, be configured as cover light guide plate 22 opening portion 22a.Diffusion part 26a is by having
There is material (such as the milky acrylic resin etc.) formation of translucency.
Installation portion 26b is from the all-round direction of principal axis (Z-direction) to diffusion part 26a of diffusion part 26a peripheral part with loudspeaker
Shape extends.Installation portion 26b is detachably arranged on the reflecting part 24a of reflection part 24 convex side.
[1-12. means of illuminations]
Then, reference picture 6, Fig. 7 and Figure 11, the means of illumination of described ligthing paraphernalia 2 is illustrated.From power subsystem 12
Direct current be provided to light emitting module 16, it is each so as to multiple first light-emitting components 44 and multiple second light-emitting components 46
It is individual luminous.
As Fig. 6 and Fig. 7 are shown, the light of each from multiple first light-emitting components 44 passes through the correspondence of lens cap 18
Lens section 18a after, diffusion shell 26 is incided by the opening portion 22a of light guide plate 22.The light of diffusion shell 26 is incided from diffusion
After cover 26 spreads and projected, space 6 is irradiated to.That is, the light of each from multiple first light-emitting components 44 does not enter
It is mapped to light guide plate 22 and shines directly into space 6.
Moreover, as Fig. 7 is shown, a part for the light of each from multiple first light-emitting components 44 is in reflection part 24
After reflection, reflected in the face of a side side of reflector 14.The light of such multipath reflection incides diffusion shell 26.Hereby it is possible to
Improve the extraction efficiency of light.
On the other hand, as Fig. 7 and Figure 11 are shown, the light of each (diverging light) from multiple second light-emitting components 46
When inciding the incident section 22c of light guide plate 22, the part of light is transformed to parallel relative to light conducting direction by prism structure 62
Light.Incident section 22c directional light is incided while in light guide section 22b inside by the first reflecting surface 70, the second reflecting surface 72
And the 3rd reflecting surface 74 reflect (also, while being reflected in the reflecting part 24a of reflection part 24), while from incident section 22c quilts
Guide to injection part 22d.
As Figure 11 is shown, the light guide section 22b light of inside is directed into first with bigger than critical angle incident angular first
The concave side of reflecting surface 70 is incident, so as to be totally reflected in the first reflecting surface 70.Now, it is preferred that the first reflecting surface 70
It is configured in the region that the major part for the directional light for inciding incident section 22c can be totally reflected.Enter in the first reflecting surface 70
The light of row total reflection is restrained and advanced towards focus F in light guide section 22b inside, is concentrated on focus F and is dissipated and incide afterwards
Second reflecting surface 72.
Light from the first reflecting surface 70 is incident with the concave side of incident angular second reflecting surface 72 bigger than critical angle, from
And it is totally reflected in the second reflecting surface 72.Drawn in the light that the second reflecting surface 72 is totally reflected in injection part 22d inside
Lead, reflected by the prism shape 60 formed in the face of injection part 22d the opposing party side, so as to from an injection part 22d side side
Project in face.
Now, after the light from the second light-emitting component 46 is transformed to directional light by prism structure 62, by the first reflecting surface
The characteristic of the 70 parabolical shapes having, is concentrated on focus F.Therefore, if the convex side in the second reflecting surface 72 is smooth
In the case of face, it is guided to injection part 22d's in the light that the second reflecting surface 72 is totally reflected with the state of the light beam of optically focused
Inside, therefore in the face of an injection part 22d side side, striped occurs because of the distribution of the density of the light beam of optically focused.On the other hand, at this
In embodiment, in the second reflecting surface 72 formed with mat surface 80, therefore the light diffusion being totally reflected in the second reflecting surface 72
And it is guided to injection part 22d inside.Hereby it is possible to suppress that the striped occurs in the face of an injection part 22d side side.
Moreover, be directed into the part of the light of light guide section 22b inside the 3rd reflecting surface 74 concave surface lateral reflection it
Afterwards, it is guided to injection part 22d inside.
Also, a part (return light) for the light after being reflected repeatedly from prism shape 60 will be to returning to light guide section 22b's
Advance in direction.However, as Figure 11 is shown, the return light is reflected by the recess 82 formed in light guide plate 22, is led so as to not return to
Light portion 22b, and injection part 22d inside is guided to again.
It is also, among the light for the incident section 22c for inciding light guide plate 22, not by prism structure 62 as Figure 11 is shown
It is transformed to the part among the light of directional light and incides branch light guide section 22e.Now, the press section 24b of reflection part 24 by
Such as the formation such as transparent resin, accordingly, the light for inciding branch light guide section 22e incides diffusion shell 26 through press section 24b.
Or the press section 24b of reflection part 24 is omitted, the light that can also make to incide branch light guide section 22e incides diffusion shell 26.
Also, in the case where having carried out the surface roughening treatment such as Embossing processing to the second reflecting surface 72, leaded light can be made
A part for light incides diffusion shell 26, the uniformly light-emitting of diffusion shell 26 when luminous, therefore can improve the apparent of illumination
Quality.
More than, direct light can be carried out to space 6 by the light from diffusion shell 26, and can be by carrying out self-conductance
The injection part 22d of tabula rasa 22 light to carry out light-guide illumination to space 6.Accordingly, the just following space 6 of ligthing paraphernalia 2 by from
The light brighter ground direct light of diffusion shell 26, therefore it is able to ensure that the illumination required for such as reading or be manual.It is another
Aspect, the space 6 around ligthing paraphernalia 2 is by the light image indirect lighting of the injection part 22d from light guide plate 22 like that than dark
Ground light-guide illumination, therefore comfort can be performed.
Moreover, in the present embodiment, illustrate to make multiple first light-emitting components 44 and multiple second light-emitting components 46
The situation of lighting together, but according to for example indoor atmosphere, can also only make multiple lightings of first light-emitting component 44, or,
Multiple lightings of second light-emitting component 46 can also only be made.
[2. effect]
The ligthing paraphernalia 2 of present embodiment possesses：Second light-emitting component 46；And light guide plate 22, for second will to be come from
The light of light-emitting component 46 is guided to prescribed direction.Light guide plate 22 includes：Incident section 22c, for the light from the second light-emitting component 46
It is incident；Injection part 22d, project the light for inciding incident section 22c；And light guide section 22b, incident section 22c is formed on penetrating
Go out between portion 22d, extend to injection part 22d from incident section 22c bendings, have in outer peripheral face and be used to that incident section 22c will to be incided
Light reflect and guide the first reflecting surface 70 and the second reflecting surface 72 to injection part 22d.First reflecting surface 70 is by leaded light
The parabola with focus F is formed in section when portion 22b is cut off with virtual plane.Second reflecting surface 72 is configured in cross section
Than the first reflecting surface 70 close to injection part 22d side, and be configured in by the void of the first reflecting surface 70 and focus F
Intend the position that straight line intersects.
Accordingly, the first reflecting surface 70 forms the parabola with focus F in cross section, therefore is directed to light guide section 22b's
Restrain and advance towards focus F in light guide section 22b inside in the light of the first reflecting surface 70 reflection among internal light, be concentrated on
After focus F, dissipate and incide the second reflecting surface 72.Also, in the light that the second reflecting surface 72 reflects in injection part 22d
Portion is directed, and is projected from injection part 22d to space 6.It is hereby it is possible to the light reflected in the first reflecting surface 70 is expeditiously incident
To the second reflecting surface 72, therefore the generation of the propagation loss of light guide section 22b light can be suppressed, it is possible to increase luminous from second
The utilization ratio of the light of element 46.
And then incident section 22c have a part for the light from the second light-emitting component 46 is transformed to relative to leaded light side
To the prism structure 62 of parallel light.
Hereby it is possible to the light from the second light-emitting component 46 is expeditiously reflected in the first reflecting surface 70, therefore can
More improve the utilization ratio of the light from the second light-emitting component 46.
It is asymmetric relative to the central shaft 64 of prismatic construction 62 in cross section and then prism structure 62 is formed.
Accordingly, the optical axis of the collimated light beam from prism structure 62 tilts relative to the central shaft 64 of prism structure 62, because
This can make the collimated light beam from prism structure 62 with the incident angles bigger than critical angle to the first reflecting surface 70.It is tied
Fruit, the light for inciding the first reflecting surface 70 are totally reflected in the first reflecting surface 70, therefore can more be improved luminous from second
The utilization ratio of the light of element 46.
And then light guide section 22b includes：Rake 66, from incident section 22c for the central shaft 64 of prism structure 62
Extension is tilted to close to injection part 22d direction；And bending section 68, injection part 22d is extended to from the bending of rake 66, and
Formed with the first reflecting surface 70 and the second reflecting surface 72.
Hereby it is possible to the collimated light beam from prism structure 62 is expeditiously guided into the inside to rake 66.
And then the second reflecting surface 72 at least a portion formed with mat surface 80.
Accordingly, the light in the reflection of the second reflecting surface 72 is spread by mat surface 80 and is guided to injection part 22d inside.According to
This, can suppress that striped occurs because of the distribution of the density of the light beam of optically focused in injection part 22d.
And then second forming curves in cross section of reflecting surface 72.
Hereby it is possible to the light reflected in the second reflecting surface 72 is expeditiously guided to the inside to injection part 22d.
And then in light guide section 22b inner peripheral surface side, formed with recess 82 between light guide section 22b and injection part 22d.
Accordingly, to be reflected from the return light that injection part 22d advances to the direction for returning to light guide section 22b by recess 82, from
Without returning to light guide section 22b, and injection part 22d inside is guided to again.As a result, can more it improve from the second hair
The utilization ratio of the light of optical element 46.
And then the branch that light guide plate 22 includes extending from incident section 22c to the direction branch different from light guide section 22b is guide-lighting
Portion 22e.
Hereby it is possible among making to incide incident section 22c light, the light of inside that be not directed into light guide section 22b
Incide branch light guide section 22e.Its result is that the light for inciding branch light guide section 22e can be made to contribute to the direct projection in space 6 to shine
It is bright, it can more improve the utilization ratio of the light from the second light-emitting component 46.
And then in injection part 22d at least a portion, formed with the prism shape for making light be projected from injection part 22d
60。
Accordingly, the light for being directed into injection part 22d inside is reflected by prism shape 60, so as to be projected from injection part 22d.
Its result is that light can be made expeditiously to be projected from injection part 22d.
And then light guide plate 22 is formed with opening portion 22a ring-type.Light guide section 22b has opening portion 22a, and
Expanded to from incident section 22c to injection part 22d horn-like.Incident section 22c is from light guide section 22b one end relative to opening portion
22a central shaft 58 extends substantially in parallel.Injection part 22d is outside to light guide section 22b footpath from light guide section 22b the other end
Side extends.Also, virtual plane is the plane of the central shaft 58 comprising opening portion 22a.
Accordingly, light guide plate 22 is formed as into ring-type, so as to the ceiling light using ligthing paraphernalia 2 as such as toroidal
Etc. being applicable.
(variation)
Then, reference picture 13, the light guide plate 22A that the variation of embodiment is related to is illustrated.Figure 13 is that amplification shows to implement
The stereogram of the part for the light guide plate 22A that the variation of mode is related to.
As Figure 13 is shown, in the second reflecting surface 72A for the light guide plate 22A that variation is related to, by prism shape formed with thick
Matte 80A.It is also same with the explanation in the embodiment according to such structure, it can suppress because being concentrated on injection part 22d
Light beam density distribution and striped occurs.
Furthermore, it is also possible to instead of the prism shape, and formed in the second reflecting surface 72A such as microlens array shape
To form mat surface 80A.
(other variations etc.)
More than, the present invention is illustrated according to embodiment and variation, but the present invention is not limited only to the embodiment party
Formula and variation.
In said embodiment, ligthing paraphernalia 2 is ceiling light, but be not limited only to this or such as pendent lamp,
Pendant lamp, wall lamp, bathroom light or kitchen lamp etc..Or ligthing paraphernalia 2 can also be set to for example be loaded in the back of the body of liquid crystal display
Light lamp etc..
Also, in described embodiment etc., prism structure is set to, the diverging light from the second light-emitting component 46 is become
The prism structure 62 of directional light is changed to, but is not limited only to this or for example makes the diverging from the second light-emitting component 46
Light is transformed to restrain the concentrator lens structure of light.
Also, in described embodiment etc., light guide plate 22 (22A) is formed as into ring-type, but is not limited only to this, also may be used
To be formed as example rectangular-shaped.
Also, in described embodiment etc., the second reflecting surface 72 is not limited only in the section forming curves
This, the second reflecting surface 72 can also form such as straight line in the section.
Also, in described embodiment etc., by each installation of the first light-emitting component 44 and the second light-emitting component 46
Structure is set to SMD structures, but is not limited only to this or LED chip is for example directly installed on to the COB of substrate 42
(Chip On Board) structure.In the case, the multiple LED cores that can will be both installed in by seal member on substrate 42
Piece seals in the lump, or can also seal individually.Also, described yellow fluorophor equiwavelength can also be included in seal member
Coversion material.
Also, in described embodiment etc., as the first light-emitting component 44 and the second light-emitting component 46, exemplified with
LED, but this is not limited only to, the semiconductor light-emitting elements such as semiconductor laser, organic EL (Electro can also be utilized
) or other solid-state light emitting elements such as inorganic EL Luminescence.
In addition, implement form obtained from the various modifications that those skilled in the art expect to described embodiment etc., with
And inscape and the function of each embodiment are combined without departing from the scope of spirit of the present invention to realize
Form, it is also included in the present invention.
Claims (10)
1. a kind of ligthing paraphernalia, possesses：
Light-emitting component；And
Light guide plate, for guiding the light from the light-emitting component to prescribed direction,
The light guide plate has：
Incident section, it is incident for the light from the light-emitting component；
Injection part, project the light for inciding the incident section；And
Light guide section, formed between the incident section and the injection part, from the incident section, bending extends to the injection part,
The light guide section has on outer peripheral face is used for what the light for inciding the incident section was reflected and guided towards the injection part
First reflecting surface and the second reflecting surface,
Formed on the section that first reflecting surface obtains when cutting off the light guide section with virtual plane and have focal parabolic
Line,
Second reflecting surface is configured in than first reflecting surface on the section close to the side of the injection part, and
And it is configured in the position with intersecting through the virtual line of first reflecting surface and the focus.
2. ligthing paraphernalia as claimed in claim 1, wherein,
The incident section, which has, to be transformed to directional light by the light from the light-emitting component or restrains the prism structure of light.
3. ligthing paraphernalia as claimed in claim 2, wherein,
The prism structure is formed as asymmetric on the section relative to the central shaft of the prism structure.
4. ligthing paraphernalia as claimed in claim 3, wherein,
The light guide section includes：
Rake, tilt and prolong relative to the direction of the central axial close injection part of the prism structure from the incident section
Stretch；And
Bending section, the injection part is extended to from rake bending, formed with first reflecting surface and described second
Reflecting surface.
5. ligthing paraphernalia as claimed in claim 1, wherein,
Second reflecting surface at least a portion formed with mat surface.
6. ligthing paraphernalia as claimed in claim 1, wherein,
Second reflecting surface forming curves on the section.
7. ligthing paraphernalia as claimed in claim 1, wherein,
In the inner peripheral surface side of the light guide section, formed with recess between the light guide section and the injection part.
8. ligthing paraphernalia as claimed in claim 1, wherein,
The light guide plate also includes the branch's light guide section extended from the incident section to the direction branch different from the light guide section.
9. ligthing paraphernalia as claimed in claim 1, wherein,
In at least a portion of the injection part, formed with for making light from the fine structure portion that the injection part projects.
10. the ligthing paraphernalia as described in any one of claim 1 to 9, wherein,
The light guide plate is formed as the ring-type with opening portion,
The light guide section has the opening portion, expanded to from the incident section towards the injection part it is horn-like,
The incident section extends substantially in parallel from the one end of the light guide section relative to the central shaft of the opening portion,
The injection part extends from the other end of the light guide section to the radial outside of the light guide section, and the virtual plane is
The plane of the central shaft comprising the opening portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016161538A JP6765055B2 (en) | 2016-08-19 | 2016-08-19 | lighting equipment |
| JP2016-161538 | 2016-08-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107763516A true CN107763516A (en) | 2018-03-06 |
| CN107763516B CN107763516B (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710695367.3A Active CN107763516B (en) | 2016-08-19 | 2017-08-15 | Lighting apparatus |
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| Country | Link |
|---|---|
| JP (1) | JP6765055B2 (en) |
| CN (1) | CN107763516B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828707A (en) * | 2018-06-06 | 2018-11-16 | 宇龙计算机通信科技(深圳)有限公司 | Light guide structure and terminal |
| CN112005540A (en) * | 2019-03-26 | 2020-11-27 | Nec平台株式会社 | LED light source mechanism, telephone and method for forming LED light source |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7122539B2 (en) * | 2018-04-26 | 2022-08-22 | パナソニックＩｐマネジメント株式会社 | lighting equipment |
| JP7382563B2 (en) | 2019-05-23 | 2023-11-17 | パナソニックＩｐマネジメント株式会社 | lighting equipment |
| DE202019105265U1 (en) * | 2019-09-24 | 2021-01-04 | Zumtobel Lighting Gmbh | Luminaire with area for flat light emission |
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| CN103104862A (en) * | 2011-11-09 | 2013-05-15 | 株式会社东芝 | Surface light source device |
| CN203744054U (en) * | 2013-09-25 | 2014-07-30 | 东芝照明技术株式会社 | Lighting device |
| JP2016033915A (en) * | 2014-07-28 | 2016-03-10 | 日立アプライアンス株式会社 | Luminaire |
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| JP4788577B2 (en) * | 2006-11-10 | 2011-10-05 | ソニー株式会社 | LIGHT GUIDE, LIGHT SOURCE DEVICE, AND ELECTRONIC DEVICE |
| JP2012226966A (en) * | 2011-04-19 | 2012-11-15 | Sharp Corp | Lighting device and lighting apparatus |
| JP6208680B2 (en) * | 2012-11-22 | 2017-10-04 | 興和株式会社 | Lighting device |
| JP6073718B2 (en) * | 2013-03-19 | 2017-02-01 | スタンレー電気株式会社 | Optical lens |
| JP2015065071A (en) * | 2013-09-25 | 2015-04-09 | 東芝ライテック株式会社 | Lighting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104862A (en) * | 2011-11-09 | 2013-05-15 | 株式会社东芝 | Surface light source device |
| CN203744054U (en) * | 2013-09-25 | 2014-07-30 | 东芝照明技术株式会社 | Lighting device |
| JP2016033915A (en) * | 2014-07-28 | 2016-03-10 | 日立アプライアンス株式会社 | Luminaire |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108828707A (en) * | 2018-06-06 | 2018-11-16 | 宇龙计算机通信科技(深圳)有限公司 | Light guide structure and terminal |
| CN112005540A (en) * | 2019-03-26 | 2020-11-27 | Nec平台株式会社 | LED light source mechanism, telephone and method for forming LED light source |
| CN112005540B (en) * | 2019-03-26 | 2022-03-29 | Nec平台株式会社 | LED light source mechanism, telephone and method for forming LED light source |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107763516B (en) | 2021-06-01 |
| JP2018029044A (en) | 2018-02-22 |
| JP6765055B2 (en) | 2020-10-07 |
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