CN208253300U - High photosynthetic efficiency circular luminaire - Google Patents
High photosynthetic efficiency circular luminaire Download PDFInfo
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- CN208253300U CN208253300U CN201820722325.4U CN201820722325U CN208253300U CN 208253300 U CN208253300 U CN 208253300U CN 201820722325 U CN201820722325 U CN 201820722325U CN 208253300 U CN208253300 U CN 208253300U
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Abstract
The utility model provides a kind of high photosynthetic efficiency circular luminaire, including outline border, installation to the light guide plate on outline border, the side of light guide plate is equipped with light source, the front of outline border is equipped with diffuser plate, the back side is equipped with reflectance coating, light guide plate includes transparent plate ontology, plate-like body is included in the first light guiding surface and the second light guiding surface on axial sides direction, multiple annular reflection areas radially successively to arrange are provided on second light guiding surface, annular reflection area includes the conducting surface for forming the export face of angle between light source incidence surface and the first light guiding surface respectively, connecting with export face.After the reflection that light beam passes through conducting surface, reflection is conducted between conducting surface and the first light guiding surface, reflection path shortens, transmission path of the light beam inside light guide plate shortens, light is reduced in the loss of light guide plate internal transmission, the utilization rate of light is improved, is finally exported by export in face of light, and pass through the export ratio of multiple export face co- controlling light.
Description
Technical field
The utility model relates to light emitting device field, in particular to a kind of high photosynthetic efficiency circular luminaire.
Background technique
Light guide plate is a kind of important smooth transmitting medium for converting point light source to planar light source.
It is totally different, (or recessed micro- apart from different, large number of convex netted particle that existing light guide plate is designed to size more
Hole), it will play scattering and refraction action to light, along plate conduction beam divergence, be refracted to planar surface, to make
One piece optical light guide plate issues soft, uniform planar light.
The shape style of light guide plate has very much, including whole is in rectangular surfaces, and the entirety also having is corresponding guide-lighting in disc
The shape of plate is different, and corresponding structural principle also can be variant, and notification number is that CN204227325U discloses a kind of New LED height
Light efficiency circular luminaire comprising a transparent or translucent plate-like body, a side end face of the plate-like body at least provided with
One LED light group, the plate-like body surface or forms concave-convex V type slot in stacking on the optical sheet in plate-like body, described recessed
Convex V-groove is round line, and around central point, transmitting light source reduces bright loss.
The light guide plate is plate-like body parallel up and down, and LED light group is set to the edge of plate-like body.As shown in Figure 1, working as side
After the light beam of the LED light group on side is injected, the area that the directional light of light beam can intersect with the concave-convex V type slot in plate-like body is small,
The export efficiency of light source is extremely low, and especially under the high photosynthetic efficiency circular luminaire under small size, the disadvantage is particularly evident.
Utility model content
The purpose of the utility model is to provide a kind of high photosynthetic efficiency circular luminaire, with light-output efficiency higher, material at
This lower advantage.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of high photosynthetic efficiency circular luminaire, including outline border, installation to the circular light guide plate on outline border, the side of circular light guide plate
Equipped with light source, the front of outline border is equipped with diffuser plate, and the back side is equipped with reflectance coating, and the circular light guide plate includes transparent plate ontology,
It is characterized in that the plate-like body is included in the first light guiding surface and the second light guiding surface on axial sides direction, in outside circumference
The light source incidence surface of side, light source are arranged in the periphery of high photosynthetic efficiency circular luminaire；
Multiple annular reflection areas radially successively to arrange, the annular reflection area packet are provided on second light guiding surface
The export face for forming angle between light source incidence surface and the first light guiding surface respectively is included, which is in respect to the first light guiding surface
It is obliquely installed, and the light beam of light source is injected by light source incidence surface and exported through the refraction of export face or reflection, multiple export faces are common
Control the export ratio for the light that light source incidence surface is injected；
Annular reflection area further includes the conducting surface to connect with export face, conducting surface nearly second light guiding surface side, and each
Axial distance between the conducting surface and the first light guiding surface gradually successively decreases along light source incidence surface to center of circle direction, the conducting surface
The folder that the angle that the tangent line of any point and the first light guiding surface are formed is less than the tangent line of export face any point and the first light guiding surface is formed
Angle, the light beam of light source conduct reflection along light source incidence surface to center of circle direction between conducting surface and the first light guiding surface, wherein warp
The light beam and the first light guiding surface formation α angle of conducting surface reflection, the α angle is with multiple reflections of the light on conducting surface and gradually
Increase.
Further setting: the export face quantity in the annular reflection area is two, the inclination in two adjacent export faces
Connection is realized by being provided with joint face in contrary and two export face teletransmission guide face sides end.
Further setting: the radical length of the conducting surface gradually successively decreases along light source incidence surface to center of circle direction.
Further setting: the distance between the joint face in each annular reflection area and export face highest point are along light source
Incidence surface to center of circle direction is gradually incremented by.
Further setting: the joint face is cambered surface or plane.
Further setting: arc transition is set as between the joint face and export face.
Further setting: the angle that the tangent line of the conducting surface any point and the first light guiding surface are formed is 0~15 °, described
The angle that the tangent line of export face any point and the first light guiding surface are formed is 20~60 °.
Further setting: the conducting surface be continuously formed on the second light guiding surface curved surface on same path or spherical surface or
Cascaded surface.
Further setting: the plate-like body is roll-forming or compression molding or injection molding.
Further setting: the annular reflection area of identical rule is arranged on first light guiding surface.
The utility model has the following beneficial effects:
1, point light source is arranged in the outer ring position of high photosynthetic efficiency circular luminaire, light source enters inside plate-like body from outer ring,
Light reflects between the first light guiding surface and the second light guiding surface, and multiple rings radially successively arranged are provided on the second light guiding surface
Shape echo area, forms that light is close and light is thin between the material and air of light guide plate, meet certain condition and lower respectively can in incident angle
Bring refraction and total reflection two kinds of situations, when incident ray incidence angle meet total reflection the case where, light from export face again
The first light guiding surface is reflexed to, continues to transmit light from periphery toward the center of circle from the first light guiding surface, it is on the contrary then reflect second and lead
Smooth surface；Under same annular reflection plot structure, light guide plate is thicker, and export efficiency is lower, conversely, more Bao Yuegao.So will
The thickness that the plate-like body is disposed proximate at light source incidence surface is big, and the center point thinner thickness.In addition, in light guide plate phase
The use that material can be reduced in the case where, even more significantly reduces cost when quantity is big.
2, for the soft degree of the light of further gentle entire light guide plate, the arrangement in the export face at close to sources is close
Degree is negligent of at distance light source, and the distance between the joint face in each annular reflection area and export face highest point are along the center of circle to outer circle
The direction in face successively increases.By the light beam at distance light end more efficient utilization and export, light export is more efficient.
Detailed description of the invention
Fig. 1 is the schematic diagram of the circular light guide plate of uniform thickness in the prior art；
Fig. 2 is the amount of light schematic diagram of the circular light guide plate of uniform thickness in the prior art；
Fig. 3 is the schematic diagram of the high photosynthetic efficiency circular luminaire of the application；
Fig. 4 is the schematic diagram of the circular light guide plate of the application；
Fig. 5 is the top view of the circular light guide plate of the application；
Fig. 6 is the detail view in the annular reflection area of the circular light guide plate of the application；
Fig. 7 is the amount of light schematic diagram of the circular light guide plate of the application.
In figure, 1, plate-like body；2, the first light guiding surface；3, the second light guiding surface；4, light source incidence surface；5, annular reflection area；
6, face is exported；7, joint face；8, conducting surface；9, circular light guide plate；10, diffuser plate；11, reflectance coating；12, outline border；13, light source.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment 1:
A kind of high photosynthetic efficiency circular luminaire, as shown in figure 3, a kind of 1. high photosynthetic efficiency circular luminaires, including outline border 12, installation are extremely
Circular light guide plate 9 on outline border 12, the side of circular light guide plate 9 are equipped with light source 12, and the front of outline border 12 is equipped with diffuser plate 10, back
Face is equipped with reflectance coating 11.
As shown in figure 4, circular light guide plate 9 includes transparent plate-like body 1, plate-like body 1 is roll-forming or molding
Molding or injection molding.The periphery of plate-like body 1 has light source incidence surface 4, and light source 12 is lamp bead, is arranged in high photosynthetic efficiency
The periphery of circular luminaire, to provide light source inside plate-like body 1.
As shown in Figure 4 and Figure 5, it is guide-lighting to be included in the first light guiding surface 2 and second on axial sides direction for plate-like body 1
Face 3 is disposed with multiple annular reflection areas 5 along plate-like body 1 on the second light guiding surface 3 in the radial direction.
It is annular as showing by enlarged drawing Fig. 5 in order to show the structure because annular reflection area 5 is small structure
The size of the schematic diagram of echo area 5, all parts in Fig. 5 is only for reference.
With reference to Fig. 6, each annular reflection area 5 includes two export faces being obliquely installed 6, the inclination in two export faces 6
Contrary, in the ideal situation, two export faces 6 can intersect at a point to form V-structure, can so allow two export
The effect in face 6 is maximum.But because the V-structure that export face 6 is intersected has viscoelasticity in plastic shaping, therefore, each ring
It can also be provided with joint face 7 between two export faces 6 of shape echo area 5, ladder is constituted between joint face 7 and two export faces 6
Shape shape, above-mentioned joint face 7 can be cambered surface and be also possible to plane.
Annular reflection area 5 further includes the conducting surface 8 to connect with export face 6, conducting surface 8 close to 3 side of the second light guiding surface, and
Axial distance between each conducting surface 8 and the first light guiding surface 2 gradually successively decreases along light source incidence surface 4 to center of circle direction, conduction
The angle that the tangent line of 8 any point of face and the first light guiding surface 2 are formed is less than 2 shape of tangent line and the first light guiding surface of 6 any point of export face
At angle.Specifically, the angle that the tangent line of 8 any point of conducting surface and the first light guiding surface 2 are formed is 0~15 °, exports face 6
The angle that the tangent line of any point and the first light guiding surface 2 are formed is 20~60 °.Above-mentioned conducting surface 8 is continuous on the second light guiding surface 3
The curved surface or spherical surface or cascaded surface being formed on same path.
Based on above-mentioned setting, the light light quantity that goes out of high photosynthetic efficiency circular luminaire is compared and analyzed, as shown in Fig. 2, Fig. 2 is figure
The schematic diagram for going out light light quantity in 1 after the arrangement concave-convex V type slot of the high photosynthetic efficiency circular luminaire of the prior art, high photosynthetic efficiency circular luminaire
Side entering light, by taking the sectional view in Fig. 2 as an example, entering light on the left of light source, middle part is the center location of high photosynthetic efficiency circular luminaire
Amount of light, right side are the distalmost end of light source entering light position.Light after the lateral entering light of light guide plate, theoretically every side light source go out light
To at center location, the light source being arranged on light guide plate circumference just reaches the whole bright of sufficient high photosynthetic efficiency circular luminaire.Due to
The lateral penetrability of light, light source still have major part to be perforated through center location after having crossed the center of circle, the reflection path of the light of the part
Longer, even, the light beam of some is directly projected from the other end, cannot efficiently use export, the export rate of light is very low.
As shown in fig. 7, the composition of conducting surface 6 so that the second light guiding surface 3 at recess, specifically, high photosynthetic efficiency circular lamp
The outer ring of tool is thicker, and center location is relatively thin.In conjunction with Fig. 3, due to light guide plate thickness from dipped beam end towards distance light end decrescence, light beam
After reflection by conducting surface 8, reflection is conducted between conducting surface 8 and the first light guiding surface 2, reflection path shortens, and light beam is being led
Transmission path inside tabula rasa shortens, and reduces light in the loss of light guide plate internal transmission, improves the utilization rate of light.And because
The reflected beams of conducting surface 8 and the α angle of the first light guiding surface 2 become larger, the more conducively export of light, improve the export ratio of light
Example and improve export efficiency.Finally, constituting recess, the thinner thickness of center location, the export efficiency of light according to conducting surface 8
It is inversely proportional with the thickness of light guide plate, the thickness of center location is thinner, and light-output efficiency is higher, by the equal light guide plate 50% of thickness
Export efficiency be at least promoted to 80% or more.
In addition, the light beam of light source is injected by light source incidence surface 4 through the refraction export of export face 6 or reflection, specifically, ginseng
Fig. 5 is examined, light beam exports after export face 6 reflects, but still has a small amount of light beam to be reflected, and continues to reflect by the first light guiding surface 2, lead
6 pairs of light of appearing export, and pass through the export ratio of multiple 6 co- controlling light of export face.
If export face 6 is made into similar trapezoidal structure with joint face 7, between joint face 7 and the first light guiding surface 2
Then be parallel relation, under this kind of state, when light reflexes on joint face 7 from the first light guiding surface 2, due to joint face 7 with
Angle is not present between first light guiding surface 2, joint face 7 can not play derivative ac-tion to light beam, so in order to mention light
It exports efficiency and also forms arc transition between joint face 7 and two export faces 6 so doing joint face 7 in arc-shaped, it will be micro-
It under the radian of small joint face 7, plays and not planning for light beam is distributed, because increasing the multiple reflections of light beam, more conducively
At beam conduction to the center location of high photosynthetic efficiency circular luminaire, moreover, playing even light action.Again because joint face 7 exports 6 ruler of face
It is very little be micron order, as joint face 7 be not circular arc excessively but intersection connection export face 6, intersection wedge angle connection dot shape because
The viscoplasticity of material at high temperature is difficult to form.
Since the light intensity that close to sources goes out is bigger, and it is then weaker at distance light source, and the radical length of conducting surface 8 is with remote
It is smaller and smaller from point light source.It rephrases the statement, i.e., the arrangement of export face 6 at point light source is negligent of far from point light source.In this way,
It can want high more using the ratio light guide plate identical with thickness in above-mentioned export face 6.Furthermore because export face 6 is arranged in density
Cloth basis, by the light beam at distance light end more efficient utilization and export.
Further, for far from the export face 6 at point light source, the joint face 7 in each of which annular reflection area 5 with
The distance between 6 highest point of export face is gradually incremented by along light source incidence surface 4 to center of circle direction.Such design can guarantee distance light
Joint face 7 and the distance between the first light guiding surface 2 at source is small, further improves export efficiency.More importantly light
The number of reflection and refraction increases, and the utilization rate in export face 6 increases, and improves derived proportions.
Under the structure of the light guide plate of the application, the use of material is not only only reduced, there is great economic benefit, and
And the export of light is more conducive to than traditional light guide plate.
Embodiment 2, difference from Example 1 is, the annular reflection area of identical rule is arranged on the first light guiding surface 2
5。
The above embodiments are only the explanation to the utility model, are not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (10)
1. a kind of high photosynthetic efficiency circular luminaire, including outline border (12), installation to the circular light guide plate (9) on outline border (12), circle is led
The side of tabula rasa (9) is equipped with light source (13), and the front of outline border (12) is equipped with diffuser plate (10), and the back side is equipped with reflectance coating (11), institute
Stating circular light guide plate (9) includes transparent plate ontology (1), characterized in that the plate-like body (1) is included in axial sides direction
On the first light guiding surface (2) and the second light guiding surface (3), in the light source incidence surface (4) of periphery, light source is arranged in high photosynthetic efficiency
The periphery of circular luminaire；
Multiple annular reflection areas (5) radially successively to arrange, the annular reflection area are provided on second light guiding surface (3)
It (5) include the export face (6) for forming angle between light source incidence surface (4) and the first light guiding surface (2) respectively, the export face
(6) opposite first light guiding surface (2) are inclined to set, and the light beam of light source is injected by light source incidence surface (4) through export face (6) folding
Penetrate or reflect export, the export ratio for the light that multiple export face (6) co- controlling light source incidence surfaces (4) are injected；
Annular reflection area (5) further includes the conducting surface (8) to connect with export face (6), nearly second light guiding surface (3) one of conducting surface (8)
Side, and the axial distance between each described conducting surface (8) and the first light guiding surface (2) is along light source incidence surface (4) to center of circle side
To gradually successively decreasing, the angle that the tangent line and the first light guiding surface (2) of conducting surface (8) any point are formed is appointed less than export face (6)
The angle that the tangent line of any and the first light guiding surface (2) are formed, the light beam of light source is along light source incidence surface (4) to center of circle direction, Yu Chuan
Reflection is conducted between guide face (8) and the first light guiding surface (2), wherein the light beam and the first light guiding surface (2) reflected through conducting surface (8)
α angle is formed, which is gradually increased with multiple reflections of the light on conducting surface (8).
2. high photosynthetic efficiency circular luminaire according to claim 1, it is characterised in that: the export face of the annular reflection area (5)
(6) quantity is two, and the inclined directions of two adjacent export faces (6) is opposite and two export face (6) teletransmission guide faces
(8) connection is realized by being provided with joint face (7) in the end of side.
3. high photosynthetic efficiency circular luminaire according to claim 2, it is characterised in that: the radical length edge of the conducting surface (8)
Gradually successively decrease in light source incidence surface (4) to center of circle direction.
4. high photosynthetic efficiency circular luminaire according to claim 3, it is characterised in that: each annular reflection area (5)
The distance between joint face (7) and export face (6) highest point are gradually incremented by along light source incidence surface (4) to center of circle direction.
5. high photosynthetic efficiency circular luminaire according to claim 3, it is characterised in that: the joint face (7) is cambered surface or plane.
6. high photosynthetic efficiency circular luminaire according to claim 5, it is characterised in that: the joint face (7) and export face (6) it
Between be set as arc transition.
7. high photosynthetic efficiency circular luminaire according to claim 1, it is characterised in that: the tangent line of conducting surface (8) any point
The angle formed with the first light guiding surface (2) is 0~15 °, the tangent line and the first light guiding surface (2) shape of export face (6) any point
At angle be 20~60 °.
8. high photosynthetic efficiency circular luminaire according to claim 1, it is characterised in that: the conducting surface (8) is in the second light guiding surface
(3) curved surface or spherical surface or cascaded surface being continuously formed on same path.
9. high photosynthetic efficiency circular luminaire according to claim 1, it is characterised in that: the plate-like body (1) is roll-forming
Either compression molding or injection molding.
10. high photosynthetic efficiency circular luminaire according to claim 1, it is characterised in that: arrange phase on first light guiding surface (2)
With the annular reflection area (5) of rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820722325.4U CN208253300U (en) | 2018-05-15 | 2018-05-15 | High photosynthetic efficiency circular luminaire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820722325.4U CN208253300U (en) | 2018-05-15 | 2018-05-15 | High photosynthetic efficiency circular luminaire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208253300U true CN208253300U (en) | 2018-12-18 |
Family
ID=66480123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820722325.4U Active CN208253300U (en) | 2018-05-15 | 2018-05-15 | High photosynthetic efficiency circular luminaire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208253300U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561806A (en) * | 2018-05-15 | 2018-09-21 | 杭州矽能新材料有限公司 | Specular removal circular luminaire |
-
2018
- 2018-05-15 CN CN201820722325.4U patent/CN208253300U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561806A (en) * | 2018-05-15 | 2018-09-21 | 杭州矽能新材料有限公司 | Specular removal circular luminaire |
| CN108561806B (en) * | 2018-05-15 | 2024-05-10 | 杭州矽能新材料有限公司 | High light effect round lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High luminous efficiency circular lamp Effective date of registration: 20230718 Granted publication date: 20181218 Pledgee: Zhejiang Lin'an Rural Commercial Bank Co.,Ltd. Pledgor: HANGZHOU XINENG NEW MATERIAL CO.,LTD. Registration number: Y2023330001514 |