CN202868473U - Lighting appliance - Google Patents
Lighting appliance Download PDFInfo
- Publication number
- CN202868473U CN202868473U CN 201220492599 CN201220492599U CN202868473U CN 202868473 U CN202868473 U CN 202868473U CN 201220492599 CN201220492599 CN 201220492599 CN 201220492599 U CN201220492599 U CN 201220492599U CN 202868473 U CN202868473 U CN 202868473U
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- light
- light source
- reflecting surface
- source cell
- source unit
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Abstract
The utility model provides a lighting appliance used for limiting decline of light output and improving uneven brightness. The lighting appliance comprises a light source unit, a reflective board and decorative frames. The light source unit comprises a plurality of light-emitting components which are arranged on the circumference of the light source unit. The reflective board is arranged on the light source unit and is provided with a plurality of light guide portions, the light guide portions guide the light emitted from the light source unit from the reverse direction, namely, the outer side, of the slight source unit. The decorative frames are coated on the reflective board. An opening portion and a reflective plane are respectively arranged on each light guide portion. The opening portion is arranged on the side of the light source unit. The opening portion is enclosed by the reflective plane, and the light emitted from the light source unit is reflected by the reflective plane. In the reflective plane, the height of the reflective plane of an inner circle side is designed to be lower that the height of an outer circle side of the reflective plane, wherein the distance between an imaginary center axis of the light source unit and the inner circle side is short,and the distance between the center axis and the outer circle side of the reflective plane.
Description
Technical field
The utility model relates to a kind of ligthing paraphernalia.
Background technology
In recent years, the lighting source in the ligthing paraphernalia is being energy-conservation/long-life light source from incandescent lamp or fluorescent lamp replacing, for example light emitting diode (Light-emitting diode:LED).Because the illuminating part Area Ratio fluorescent lamp of LED is little, therefore such as the front surface at the light source cell that is arranged with a plurality of LED reflecting plate etc. is set and comes to foreign side's guiding illumination light time, sometimes produce brightness disproportionation.And, make the illumination light diffusion if at the front surface of LED optical material is set, then light output descends.
Patent documentation 1: TOHKEMY 2010-3677 communique
The utility model content
The purpose of this utility model is to provide a kind of ligthing paraphernalia that light output descends and improves brightness disproportionation that suppresses.
The utility model provides a kind of ligthing paraphernalia, and it possesses light source cell, reflecting plate and escutcheon.Described light source cell has a plurality of light-emitting components that are arranged on the circumference.Described reflecting plate is arranged on the described light source cell, and has a plurality of light guide sections, and this light guide section is that foreign side's guiding is from the light of described light source cell radiation to the opposite direction of described light source cell.Described escutcheon covers described reflecting plate.Described a plurality of light guide section has respectively peristome and reflecting surface.Described peristome is arranged at described light source cell side.Described reflecting surface surrounds described peristome and reflects from the light of described light source cell radiation.In the described reflecting surface, with the distance of the imaginary central axis of described light source cell the height of the described reflecting surface of short interior all sides form and be lower than and the distance of the described central shaft height of the described reflecting surface of long outer circumferential side.
In addition, preferred described reflecting surface is arranged to from the inverted cone shape of described light source cell side direction foreign side expansion.
In addition, in the preferred described reflecting surface, described interior all sides with respect to the angle of described central shaft greater than the angle of described outer circumferential side with respect to described central shaft.
In addition, preferred described reflecting surface carries out mirror-reflection to the light from described a plurality of light-emitting component radiation.
In addition, preferred described reflecting surface comprises metal.
The utility model effect
According to embodiment of the present utility model, can provide a kind of ligthing paraphernalia that light output descends and improves brightness disproportionation that suppresses.
Description of drawings
Fig. 1 is the stereogram of the ligthing paraphernalia that represents that for example the 1st embodiment is related.
Fig. 2 is the A-A DNA mitochondrial DNA sectional view of Fig. 1.
Fig. 3 is the stereogram that represents for example the light source cell in the ligthing paraphernalia.
Fig. 4 (a) is for representing for example the stereogram of the reflecting plate in the ligthing paraphernalia.
Fig. 4 (b) is the B-B DNA mitochondrial DNA sectional view of Fig. 4 (a).
Fig. 5 is the stereogram that represents for example the escutcheon in the ligthing paraphernalia.
Among the figure: 1-ligthing paraphernalia, 2-light source cell, 3-installation portion, 4-light-emitting component, 5-radiator, 6-reflecting plate, 7-light guide section, 8-linking part, 9-base plate, 10-peristome, 11-reflecting surface, 13-escutcheon, 14-inside casing section, 15-outer frame.
The specific embodiment
Below, with reference to the accompanying drawings embodiment is elaborated.In addition, accompanying drawing is schematic or conceptual figure, the shape of each several part or the ratio etc. of size may not be necessarily identical with entity between the relation, part of size in length and breadth.And, even when the expression same section, also sometimes differently represent with reference to the accompanying drawings mutual size or ratio.And, in present specification and each accompanying drawing, about the accompanying drawing that occurred to the additional identical symbol of as hereinbefore important document and detailed suitably.
(the 1st embodiment)
Fig. 1 is the stereogram of the ligthing paraphernalia that represents that for example the 1st embodiment is related.
Fig. 2 is the A-A DNA mitochondrial DNA sectional view of Fig. 1.
The so-called Down lamp that the ligthing paraphernalia 1 of present embodiment uses for the peristome that is embedded in not shown ceiling.Ligthing paraphernalia 1 possesses light source cell 2, reflecting plate 6 and covers the escutcheon 13 of reflecting plate 6.
Fig. 3 is the stereogram that represents for example the light source cell in the ligthing paraphernalia.
A plurality of light-emitting components 4 are arranged on the installation portion 3 with circle-shaped with respect to the imaginary central axis L of light source cell 2.In addition, this concrete example is illustrated in for example the installation portion 3 that adjacent light-emitting component 4 is installed and the poor and part that makes light-emitting component of ladder is set to the overlapping structure of central axis L direction.Except in this concrete example for example the structure of expression, for example can also be with the flat shape that light-emitting component 4 non-overlapped modes formed light-emitting component 4 and actual load on smooth installation portion.And, in this concrete example, represented for example to arrange the structure of 6 light-emitting components 4, but the number of light-emitting component 4 can be made as any number according to light output.
In addition, radiator 5 and installation portion 3 can be integrally formed, and can be formed by the different materials split.Such as can forming radiator 5 by the higher material of the heat conductivities such as metal, and with the surface of radiator 5 as installation portion 3, form for example discoideus or ring-type for example.And, can be on such as the radiator 5 that is formed by metal etc. setting example as formed the installation portion 3 of discoideus or ring-type etc. by resin etc.
Fig. 4 (a) is for representing for example the stereogram of the reflecting plate in the ligthing paraphernalia, and Fig. 4 (b) is the B-B DNA mitochondrial DNA sectional view of Fig. 4 (a).
Reflecting plate 6 has: a plurality of light guide sections 7 are that foreign side's guiding is from the light of light source cell 2 radiation to the rightabout of light source cell 2; Linking part 8 is arranged between the adjacent light guide section 7; Reach base plate 9, be arranged at the inboard of a plurality of light guide sections 7.Reflecting plate 6 is such as can be integrally formed by metal etc., and can be formed by the different materials split.
A plurality of light guide sections 7 have respectively: peristome 10 is arranged at light source cell 2 sides; And reflecting surface 11, the light that surrounds peristome 10 and radiate from light source cell 2 towards foreign side's reflection.Has the inverted cone shape reflecting surface 11 towards foreign side's expansion.Light guide section 7 such as the material that has a high reflectance with respect to the light from light source cell 2 radiation by metal etc. forms and the incident light from peristome 10 is carried out mirror-reflection.
This concrete example represents to form with the inverted cone shape towards foreign side's expansion the structure of the reflecting surface 11 in the light guide section 7 for example.And in this concrete example, reflecting surface 11 constitutes apart from the height H of peristome 10, with the distance B of central axis L when predetermined value D1 is following, be H1, distance B is steady state value H2 when predetermined value D2 is above, and distance B is between predetermined value D1 and the D2 time, and height H changes from H1 to H2 continuously according to distance B.For example, become from foreign side with reflecting plate 6 take the bottom surface as radius D1, above be radius D2, the structure highly dug through as the frustum of a cone of H2-H1.
Except in this concrete example for example the structure of expression, as long as the reflecting surface 11 that constitutes in the light guide section 7 changes according to the distance B with the imaginary central axis L of light source cell 2 apart from the height H of peristome 10.And, be lower than the relatively height H of long outer circumferential side of distance B as long as the height H of interior all sides that distance B is lacked relatively forms.
And, with regard to the angle θ of the central axis L 1 of the light guide section parallel with central axis L 7 and the reflecting surface 11 of light guide section 7, with the distance B of central axis L short inboard reflecting surface greater than with the distance B of the central axis L reflecting surface in the long outside.For example, shown in Fig. 4 (b), with regard to the angle of curve 12a, the curve 12b of the reflecting surface 11 of light guide section 7 and the Plane intersects by central axis L and central axis L 1 and central axis L 1, inboard curve 12a and the angle θ 1 of central axis L 1 are greater than the curve 12b in the outside and the angle θ 2 of central axis L 1.
Therefore, compare from the incident light of peristome 10 with the interior all side direction peripheral direction reflection at reflecting surface 11, light guide section 7 at the outer circumferential side of reflecting surface 11 to central axis L direction strong reflection incident light more.Its result is foreign side's reflection from the incident light of peristome 10 towards the expansion of central axis L side and to the opposition side of light source cell 2, therefore can make the emergent light diffusion from light guide section 7.
And, such as this concrete example, the reflecting surface 11 in the light guide section 7 is made as surrounds peristome 10 and when the inverted cone shape structure of foreign side's expansion, when comparing with cylindric reflecting surface, more convergence is parallel with central axis L 1 can to make the catoptrical direction that is formed by reflecting surface 11.
Linking part 8 is such as being formed by metal etc., in conjunction with adjacent light guide section 7, and makes the light by light guide section 7 reflections of opposition side further carry out mirror-reflection towards foreign side.In this concrete example, linking part 8 is the structure that is connected of the outer circumferential side of the reflecting surface 11 in expression and the light guide section 7 for example.At this moment, can be such as by integrally formed light guide section 7 and linking parts 8 such as metals.And except in this concrete example for example the structure of expression, linking part 8 for example also can be arranged at than the outer circumferential side of reflecting surface 11 more in the outer part.At this moment, reflecting surface 11 is inwardly all side-prominent from linking part 8.
Fig. 5 is the stereogram that represents for example the escutcheon in the ligthing paraphernalia.
Escutcheon 13 has: inside casing section 14, by forming cylindric such as resin etc.; And outer frame 15, direction is outstanding outside the periphery radius vector of inside casing section 14.Inside casing section 14 covers reflecting plate 6 from foreign side.And outer frame 15 joins and priming illumination utensil 1 with the lower surface of ceiling.
And, in ligthing paraphernalia 1, not shown diffuser can be set cover reflecting plate 6.For example, can discoid diffuser be set at the boundary vicinity of inside casing section 14 and outer frame 15.At this moment, escutcheon 13 and diffuser consist of the outward appearance of getting light face side of ligthing paraphernalia 1, and play a role as the frame of protection light source cell 2.
Diffuser consists of the outward appearance of getting light face side in the ligthing paraphernalia 1, and plays a role as the frame of protection light source cell 2.Diffuser is such as being formed by resin with light transmission etc.And diffuser is colored as such as milky etc., forms the translucent of the degree that can't visually observe from the outside light source cell 2.
Therefore as light-emitting component 4, when for example using LED, the area of comparing illuminating part with fluorescent lamp is less, for example lacks than fluorescent lamp based on the diffusivity of the illumination light of the light source cell of arranging a plurality of LED.Its result, for example the height H of the reflecting surface 11 of the light guide section 7 in interior all sides and outer circumferential side reflecting plate 6 is set to when constant, and the illumination light on the escutcheon produces respectively from light and shade, the so-called brightness disproportionation of the light of a plurality of LED radiation.At this moment, by the higher diffuser of diffusivity is set, can make illumination light spread to reduce brightness disproportionation.But the diffuser that diffusivity is higher reduces light output and lowers efficiency.
Relative therewith, in the present embodiment, the height height relatively low and outer circumferential side that the reflecting surface 11 of the light guide section 7 in the reflecting plate 6 forms interior all sides is relatively high.Its result increase to some extent from the reverberation of the inside all sides of light of light-emitting component 4 radiation, so brightness disproportionation reduces.And, can enlarge from the luminous intensity distribution of the light of light-emitting component 4 radiation by reflecting plate 6, therefore can use the diffuser that diffusivity is lower and permeability is higher.Its result can suppress light output decline and improve efficient.
And, the reflecting surface 11 in the light guide section 7 is made as surrounds peristome 10 and when the inverted cone shape structure of foreign side's expansion, when comparing with cylindric reflecting surface, can make based on the catoptrical direction of reflecting surface 11 more close parallel with central axis L 1.Its result exports increase and can improve efficient to the light of foreign side's guiding.
More than, with reference to concrete example embodiment is illustrated, but is not limited to these, can carry out various distortion.For example, can be LED or OLED(Organic l ight-emitting diode as the light-emitting component 4 of lighting source) or EL(Electro-Luminescence), and light-emitting component 4 can be connected or connected side by side a plurality of LED.
And the flat shape of light source cell 2 is not limited to toroidal, except elliptical shape, and can also be polygon-shaped for rectangle etc.
Some embodiments of the present utility model are illustrated, but the just as an example proposition of these embodiments is not intended to limit the claimed scope of utility model.These new embodiments can be implemented with other variety of ways, in the scope that does not break away from the utility model aim, can carry out various omissions, replacement and change.These embodiments or its distortion are included in scope of the present utility model or the aim, and are included in the utility model and its impartial scope of putting down in writing in the technical scheme.
Claims (5)
1. ligthing paraphernalia, wherein,
Possess: light source cell has a plurality of light-emitting components that are arranged on the circumference;
Reflecting plate is arranged on the described light source cell, and has a plurality of light guide sections, and this light guide section is that foreign side's guiding is from the light of described light source cell radiation to the opposite direction of described light source cell; And
Escutcheon covers described reflecting plate,
Described a plurality of light guide section has respectively:
Peristome is arranged at described light source cell side; And
Reflecting surface surrounds described peristome and reflection from the light of described light source cell radiation,
In the described reflecting surface, with the distance of the imaginary central axis of described light source cell short the height of described reflecting surface of interior all sides form and be lower than and the distance of the described central shaft height of the described reflecting surface of long outer circumferential side.
2. ligthing paraphernalia as claimed in claim 1, wherein,
Described reflecting surface is arranged to from the inverted cone shape of described light source cell side direction foreign side expansion.
3. ligthing paraphernalia as claimed in claim 1, wherein,
In the described reflecting surface, described interior all sides with respect to the angle of described central shaft greater than the angle of described outer circumferential side with respect to described central shaft.
4. such as each described ligthing paraphernalia in the claims 1 to 3, wherein,
Described reflecting surface carries out mirror-reflection to the light from described a plurality of light-emitting component radiation.
5. such as each described ligthing paraphernalia in the claims 1 to 3, wherein,
Described reflecting surface comprises metal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-068469 | 2012-03-23 | ||
| JP2012068469A JP2013201021A (en) | 2012-03-23 | 2012-03-23 | Lighting fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202868473U true CN202868473U (en) | 2013-04-10 |
Family
ID=48035188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220492599 Expired - Fee Related CN202868473U (en) | 2012-03-23 | 2012-09-21 | Lighting appliance |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2013201021A (en) |
| CN (1) | CN202868473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109477624A (en) * | 2016-10-25 | 2019-03-15 | 深圳市大疆创新科技有限公司 | A kind of lampshade, lamps and lanterns and aircraft |
-
2012
- 2012-03-23 JP JP2012068469A patent/JP2013201021A/en active Pending
- 2012-09-21 CN CN 201220492599 patent/CN202868473U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109477624A (en) * | 2016-10-25 | 2019-03-15 | 深圳市大疆创新科技有限公司 | A kind of lampshade, lamps and lanterns and aircraft |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013201021A (en) | 2013-10-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20170921 |