CN202532218U - Lamp structure with batwing-shaped light intensity distribution - Google Patents
Lamp structure with batwing-shaped light intensity distribution Download PDFInfo
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- CN202532218U CN202532218U CN2012200250018U CN201220025001U CN202532218U CN 202532218 U CN202532218 U CN 202532218U CN 2012200250018 U CN2012200250018 U CN 2012200250018U CN 201220025001 U CN201220025001 U CN 201220025001U CN 202532218 U CN202532218 U CN 202532218U
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- China
- Prior art keywords
- fitting structure
- light distribution
- light
- aerofoil profile
- lgp
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- 238000009826 distribution Methods 0.000 title claims abstract description 57
- 238000009792 diffusion process Methods 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 241001465382 Physalis alkekengi Species 0.000 abstract 2
- 240000003380 Passiflora rubra Species 0.000 abstract 1
- 210000000007 bat wing Anatomy 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000005286 illumination Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
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Abstract
The utility model discloses a bat wing section light intensity distribution's lamps and lanterns structure, the lamps and lanterns structure contains two at Least Emitting Diode (LED) groups, a light guide plate, a reflection part and prism piece, its characterized in that the light guide plate has a first surface and a second surface, has the structure of taking a little on the first surface to the both sides is more sparse in the middle of the mode of being close distributes, is used for changing the refraction angle of light, lets light refract out the light guide plate. The utility model discloses a prism piece is the face towards the geometric shape structure of light guide plate direction, and the effectual even dispersion of making light jets out to reach the light distribution of Bat Wing section (Bat Wing).
Description
Technical field
The utility model is the fitting structure about the light distribution of a kind of bat aerofoil profile, particularly a kind of fitting structure with uniform illumination.
Background technology
Please refer to Fig. 1, Fig. 1 top shows an existing fitting structure, it is characterized in that comprising at least two light emitting diodes (LED) 10, a LGP 12, a reflecting part 14 and a diffusion sheet 16.Said LGP 12 has a first surface 2 and a second surface 4; Have several little shape structures 18 on the first surface 2; This slightly shape structure 18 to be arranged at arrangement mode on the said first surface 2 be to dredge but be positioned at closeer different distributions density settings in the middle of the first surface 2 to be positioned at said first surface 2 both sides; It is characterized in that being provided with purpose is to be used for changing the ray refraction angle that is transmitted by reflecting part 14 reflections, and then lets this light reflect LGP 12 with big deflection refraction angle.Said diffusion sheet 16 is configured in the below of LGP 12.
It should be noted at this, following alleged vertical angle be defined as the angle between the direction of surveying and horizontal plane, for example: be vertical angle 0 degree under the light fixture, deflection 30 degree are vertical angle 30 degree.
The surface of intensity distribution through the existing fitting structure of demonstration below Fig. 1 can be known; The maximum optical intensity that said existing fitting structure can produce is to be positioned on its direction of sending vertical angle 0 degree, but the luminous intensity on other directions can be successively decreased along with the increase of the angle excursion of its vertical angle; When several existing fitting structures are disposed at indoor lamp, can make illumination (direction of vertical angle 0 degree) under more single the light fixture of illumination between light fixture and the light fixture for low, and make the Illumination Distribution in whole space unequal.
Other please refer to Fig. 2; Fig. 2 is another existing fitting structure; With Fig. 1 difference be: the existing fitting structure of Fig. 2 removed diffusion sheet below the LGP 12 but increase to have disposed form several geometric form structures 22 on a prismatic lens 20 and the said prismatic lens 20 outside said fitting structure, with guiding light; Yet; The surface of intensity distribution through Fig. 2 below shows can be known; Can make the luminous intensity concentrations on said vertical angle 0 degree direction through several angular structures 22 that form on the prismatic lens 20; The luminous intensity here even have a fitting structure of diffusion sheet than Fig. 1 taller in the luminous intensity of vertical angle 0 degree direction, but still there is identical problem in the luminous intensity on other directions, that is can successively decrease along with the increase of the angle excursion of beam angle.If the luminous intensity difference of further comparison diagram 1 and 2 on the vertical angle direction of other non-0 degree; The luminous intensity that can find the fitting structure of Fig. 2 is low than the luminous intensity that Fig. 1 has a fitting structure of diffusion sheet on the contrary; Luminous intensity or the rapid reduction of illumination that this will make between light fixture and the light fixture make whole space illumination very inhomogeneous.
The utility model content
In view of this; The purpose of the utility model is to provide the fitting structure of a kind of bat aerofoil profile light distribution; Can be effectively light is done to divide uniformly scatter, the luminous intensity that it is characterized in that said fitting structure be to be benchmark with its vertical angle 0 degree direction, increases progressively along with the increase of this angle excursion; Till a specific angle excursion; To reach the light distribution of bat aerofoil profile, can increase configuration distance and uniform illumination between several fitting structures by this, and then reduce the number of configured and the cost of fitting structure.
For reaching above-mentioned purpose; The fitting structure of the bat aerofoil profile light distribution of a wherein embodiment of the utility model; Said fitting structure comprises that a LGP, at least two LED group emit beam towards the limit, two opposite sides of said LGP respectively, a reflecting part will send through the light that said LGP spreads out of outside said fitting structure; And one prismatic lens have one first transparent surface and one second transparent surface against each other; It is characterized in that said first transparent surface is than the more approaching said LGP of said second transparent surface; And several geometric form structures that distribute on said first transparent surface, said several geometric form structures are that the light that the said LGP of guiding transmits penetrates to form the light distribution of bat aerofoil profile outside said second transparent surface.
According to the fitting structure of the bat aerofoil profile light distribution of the utility model, it is characterized in that said each LED group comprises at least one LED.
Fitting structure according to the bat aerofoil profile light distribution of the wherein embodiment of the utility model; It is characterized in that said LGP directly in the face of said reflecting part and on the said first surface little shape structure of several different distributions spacings, and said second surface is directly in the face of several geometric form structures of first transparent surface of said prismatic lens.
According to the fitting structure of the bat aerofoil profile light distribution of the utility model, it is characterized in that distribute spacing near the little shape structure of part on the limit, two opposite sides of said first surface is greater than the distribute spacing that is positioned at other the little shape structures in the middle of the said first surface.
Fitting structure according to the bat aerofoil profile light distribution of the utility model; It is characterized in that said several little shape structures are arcuate structure, and said several geometric form structures can be a kind of or some kinds the combination wherein wherein of polygonal structure, polygonized structure and arcuate structure.
According to the fitting structure of the bat aerofoil profile light distribution of the utility model, it is characterized in that maximum optical intensity that said fitting structure produces is distributed in the scope between 15 °～45 ° of the vertical angles that said fitting structure emits beam.
Fitting structure according to the bat aerofoil profile light distribution of another embodiment of the utility model; It is characterized in that further comprising: a diffusion sheet; It is the light angle that directly penetrates through said second transparent surface in the face of second transparent surface and the adjustment of said prismatic lens; To form the light distribution of bat aerofoil profile, it is characterized in that maximum optical intensity that said fitting structure produces is distributed in the scope between 10 °～40 ° of the vertical angles that said fitting structure emits beam.
The utility model can effectively reach bat aerofoil profile (Bat Wing) light distribution through several geometric form structures that distribute on the prismatic lens.
In order to let the above-mentioned of the utility model and other purposes, characteristic, advantage and the embodiment can be more obviously understandable, hereinafter will be enumerated embodiment and explain, and cooperate appended graphicly, elaborate as follows.
Description of drawings
Fig. 1 illustrates the sketch map of existing light fixture and light distribution thereof.
Fig. 2 illustrates the sketch map of another existing light fixture and light distribution thereof.
Fig. 3 a illustrates according to the fitting structure of the utility model first embodiment and the sketch map of light distribution thereof.
Fig. 3 b illustrates the opticpath sketch map according to the fitting structure of the utility model first embodiment.
Fig. 4 illustrates according to the fitting structure of the utility model second embodiment and the sketch map of light distribution thereof.
Fig. 5 illustrates the sketch map that is applied to room lighting according to the fitting structure of the utility model.
Fig. 6 illustrates the light distribution comparison diagram of the fitting structure of existing light fixture and the utility model first embodiment.
The specific embodiment
Below conjunction with figs. is specified the bat aerofoil profile light distribution fitting structure of the utility model.Be noted that at this different graphic middle components identical symbols are the same or analogous elements of expression.Below the face direction of mentioned annexed drawings be defined as normal vector perpendicular to said plane, be in order to explanation and understand the utility model at the direction term of this use, but not in order to restriction the utility model.
Please refer to Fig. 3 a; Fig. 3 a is the fitting structure sketch map according to the bat aerofoil profile light distribution of first embodiment of the utility model, it is characterized in that said fitting structure 1 comprises: two light emitting diodes (LED) groups, 10, one LGP 12, a reflecting part 14 and a prismatic lens 20.
Each group LED quantity of said two LED group 10 can be at least one or more than one LED; And said two LED group 10 is the limits, left and right two opposite sides that are respectively in said LGP 12, and respectively has a light-emitting area and emit beam towards the limit, left and right two opposite sides of said LGP 12 respectively.
Said LGP 12 has a first surface 2 and a second surface 4 against each other; Said first surface 2 is directly in the face of said reflecting part 14; And the little shape structure 18 of arcuation of several different distributions spacings is set on the said first surface 2; Shown in Fig. 3 a; The arrangement mode of little shape structure 18 of these arcuations is to dredge (distribute spacing D2) but be positioned at that the different distributions density of closeer (distribute spacing D1) is arranged on the first surface 2 in the middle of the first surface 2 to be positioned at said first surface 2 both sides; Greater than D1, can change the ray refraction angle that transmits by reflecting part 14 reflections through D2, and then let this light reflect the second surface 4 of LGP 12 with big deflection refraction angle.On other practice, this slightly shape structure 18 structure that also can change or concavo-convex cross section semicircle through a plurality of tools directly form or cover outward and place on the said first surface 2.
Said reflecting part 14; Can be an a part of or reflecting layer of the housing (not shown) of an independent reflecting plate that is provided with or said fitting structure 1, said reflecting part 14 is used for the turn light rays that spreads out of through said LGP 12 is sent towards the outside of said fitting structure 1.
Said prismatic lens 20; Have one first transparent surface 6 and one second transparent surface 8 both against each other; It is characterized in that said first transparent surface 6 is nearer compared with the said LGP of said second transparent surface 8 distance 12, and several geometric form structures 22 that distribute on said first transparent surface 6.According to first embodiment shown in Fig. 3 a; Said several geometric form structures 22 are formed for a plurality of structures with triangular-section; And the drift angle 9 of several tool triangular structures is all directly faced the second surface 4 of said LGP 12; The light that spreads out of with the second surface 4 that guides said LGP 12 penetrates the light distribution (treating the back explanation) to form the bat aerofoil profile outside said second transparent surface 8, light can evenly be divided scatter and can be towards the light fixture center concentrations.The bat aerofoil profile surface of intensity distribution with the fitting structure 1 of first embodiment of demonstration the utility model below Fig. 3 a is an example; So-called " light distribution of bat aerofoil profile " is: the luminous intensity of said fitting structure 1 is a benchmark with its vertical angle 0 degree direction; Along with the angle excursion of this vertical angle increases and increases progressively, till a specific angle excursion; The maximum optical intensity that said fitting structure 1 produces is in the scope that approximately is distributed between 15 °～45 ° of the vertical angles that said fitting structure 1 emits beam, but not as prior art be to be distributed in 0 to spend on the direction.
It should be noted at this,, do not limit the utility model with this though the geometric form structure 22 on the prismatic lens 20 of first embodiment is a triangle; In other practice; Also can adopt the one kind of of polygonal structure, polygonized structure, arcuate structure or wherein some kinds combination or any shape that makes light evenly divide the geometric form structure 22 that scatters; All be contained in the utility model; But because its application is identical with aforesaid first embodiment mostly, for avoiding repetition, in this omission.
Please refer to Fig. 3 b; Fig. 3 b is the opticpath figure of first embodiment; Reflection through reflecting part 14; Light 21 is injected to change its refraction angle from some little shape structure 18 of LGP 12, then utilized the effect of geometric form structure 22 of the prismatic lens 20 of fitting structure 1 below, light 21 is further turned to towards the outside of fitting structure 1 penetrate.
Please refer to Fig. 4; Fig. 4 be according to the fitting structure 1 of the bat aerofoil profile light distribution of second embodiment of the utility model ' structural representation; First embodiment that itself and 3a scheme compares; Different part is: the fitting structure 1 of second embodiment ' increase by one diffusion sheet 16 is positioned at second transparent surface, 8 belows of said prismatic lens 20, and making said diffusion sheet 16 is directly to face second transparent surface 8 of said prismatic lens 20 with the angle of adjustment through the light of said second transparent surface 8 ejaculations, with the above-mentioned light 21 that branch scatters toward the both sides; Concentrate to the light fixture center slightly; Constituting a more uniform surface light source, show like the bat aerofoil profile surface of intensity distribution of Fig. 4 below, the fitting structure 1 of second embodiment ' largest light intensity be distributed in the scope between 10 °～40 ° of its vertical angles.Because the fitting structure 1 of said second embodiment ' other structures identical with aforesaid first embodiment, for avoiding repetition, so in this omission.
Please with reference to shown in Figure 5, Fig. 5 is to be the light distribution situation of the fitting structure 1 of two bat aerofoil profiles light distribution.As shown in the figure; The b point of c point and two light fixture 1 centres under a point and the right light fixture 1 under the light fixture 1 of the left side relatively; Can find that at these three ray cast point a among b and the c, the existing light fixture of the luminous intensity that b is ordered is more evenly better; Therefore the configuration distance between said two light fixtures be can increase, and then the number of configured and the cost of fitting structure reduced.
Please with reference to shown in Figure 6; The surface of intensity distribution for the light distribution 62 of first embodiment of the utility model; Central longitudinal axial region part of this figure is luminous intensity/thousand luminous flux 70, and its unit is cd/klm, and the label 75 among the figure around the left and right and below represent vertical angle of light ejaculation.The light distribution 62 that from figure, can know first embodiment scatters and forms a bat aerofoil profile light intensity distributions to the both sides branch, so illumination is even than prior art, and it is higher still to keep vertical angle 0 degree in the light distribution 60 of horizontal angle 90 degree.
Comprehensively above-mentioned; But the luminous intensity of the fitting structure of the bat aerofoil profile light distribution of knowledge capital utility model is to be benchmark and along with the increase of the angle excursion of this vertical angle increases progressively with its vertical angle 0 degree direction; Reaching the light distribution of bat aerofoil profile, and then obtain to increase configuration distance and uniform illumination between several fitting structures simultaneously than existing light fixture illumination more uniformly; And then the number of configured and the cost of reduction fitting structure, the therefore illumination Design of very suitable office.
Though this creation discloses as above with preferred embodiment, so it is not in order to limit the utility model, to have common knowledge the knowledgeable in the technical field under the utility model, in spirit that does not break away from the utility model and scope, when doing various changes and retouching.Therefore the protection domain of the utility model is as the criterion when looking accompanying the claim person of defining.
Claims (9)
1. the fitting structure of bat aerofoil profile light distribution, said fitting structure comprises:
One LGP;
At least two light emitting diodes (LED) group, the limit, two opposite sides towards said LGP emits beam respectively;
One reflecting part is used for the turn light rays that spreads out of through said LGP is sent outside said fitting structure; An and prismatic lens; Have one first transparent surface and one second transparent surface against each other; It is characterized in that said first transparent surface is than the approaching said LGP of said second transparent surface; And several geometric form structures that distribute on said first transparent surface, said several geometric form structures are the light distribution towards the outer formation bat aerofoil profile of said second transparent surface of the light that transmits of the said LGP of guiding.
2. the fitting structure of bat aerofoil profile according to claim 1 light distribution is characterized in that said each LED group comprises at least one LED.
3. the fitting structure of bat aerofoil profile according to claim 1 light distribution; It is characterized in that said LGP has a first surface and a second surface against each other; Said first surface directly is provided with little shape structure of several different distributions spacings in the face of said reflecting part and on the said first surface; Changing said LGP to the ray refraction angle, and said second surface is directly in the face of several geometric form structures of first transparent surface of said prismatic lens.
4. the fitting structure of bat aerofoil profile according to claim 3 light distribution is characterized in that distribute spacing near the little shape structure of part on the limit, two opposite sides of said first surface is greater than the distribute spacing that is positioned at other the little shape structures in the middle of the said first surface.
5. the fitting structure of bat aerofoil profile according to claim 4 light distribution is characterized in that said several little shape structures are arcuate structure.
6. the fitting structure of bat aerofoil profile according to claim 1 light distribution is characterized in that maximum optical intensity that said fitting structure produces is distributed in the scope between 15 °～45 ° of the vertical angles that said fitting structure emits beam.
7. the fitting structure of bat aerofoil profile according to claim 1 light distribution; Further comprise: a diffusion sheet; Be the light angle that directly penetrates through said second transparent surface, to form the light distribution of bat aerofoil profile in the face of second transparent surface and the adjustment of said prismatic lens.
8. the fitting structure of bat aerofoil profile according to claim 7 light distribution is characterized in that maximum optical intensity that said fitting structure produces is distributed in the scope between 10 °～40 ° of the vertical angles that said fitting structure emits beam.
9. the fitting structure of bat aerofoil profile according to claim 1 light distribution is characterized in that said several geometric form structures are the one kind of of polygonal structure, polygonized structure and arcuate structure or several combination wherein.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100216977U TWM422635U (en) | 2011-09-09 | 2011-09-09 | The lamp with luminous intensity of bat wing distribution |
| TW100216977 | 2011-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202532218U true CN202532218U (en) | 2012-11-14 |
Family
ID=46459904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200250018U Expired - Lifetime CN202532218U (en) | 2011-09-09 | 2012-01-19 | Lamp structure with batwing-shaped light intensity distribution |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202532218U (en) |
| TW (1) | TWM422635U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10072816B2 (en) | 2013-06-19 | 2018-09-11 | Bright View Technologies Corporation | Microstructure-based optical diffusers for creating batwing and other lighting patterns |
| US10302275B2 (en) | 2013-06-19 | 2019-05-28 | Bright View Technologies Corporation | Microstructure-based diffusers for creating batwing lighting patterns |
-
2011
- 2011-09-09 TW TW100216977U patent/TWM422635U/en not_active IP Right Cessation
-
2012
- 2012-01-19 CN CN2012200250018U patent/CN202532218U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10072816B2 (en) | 2013-06-19 | 2018-09-11 | Bright View Technologies Corporation | Microstructure-based optical diffusers for creating batwing and other lighting patterns |
| US10302275B2 (en) | 2013-06-19 | 2019-05-28 | Bright View Technologies Corporation | Microstructure-based diffusers for creating batwing lighting patterns |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM422635U (en) | 2012-02-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |
|
| CX01 | Expiry of patent term |