CN101846287B - Device for eliminating overlapping shadow or track shadow of point light source - Google Patents
Device for eliminating overlapping shadow or track shadow of point light source Download PDFInfo
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- CN101846287B CN101846287B CN2009101319352A CN200910131935A CN101846287B CN 101846287 B CN101846287 B CN 101846287B CN 2009101319352 A CN2009101319352 A CN 2009101319352A CN 200910131935 A CN200910131935 A CN 200910131935A CN 101846287 B CN101846287 B CN 101846287B
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- shadow
- light
- light source
- lens
- point source
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Abstract
The invention discloses a device for eliminating an overlapping shadow or a track shadow of a point light source, wherein, the periphery of the point light source is provided with a medium component which is provided with a light inlet surface and a light outlet surface that are both cambered surfaces that can scatter light; the point light source is assembled in the medium component, and the light generated by the point light source is input from the light inlet surface of the medium component and then emitted from the light outlet surface so as to diffuse the light into uniform distribution by the medium component, thus eliminating the overlapping shadow or the track shadow which is possibly generated when most devices for eliminating the overlapping shadow or the track shadow of the point light source approach the setting and which causes visual discomfort; in addition, the medium component can add required fluorescent materials according to the color of the point light source to project expected light of mixed colors.
Description
Technical field
The present invention relates to a kind of lighting device, relate in particular to a kind of LED (light emitting diode) light source that can solve and concentrate and to be easy to generate repeatedly shadow or rail shadow when being provided with so that cause the device of visual discomfort.
Background technology
Generally based on the characteristics of power saving and long service life, add the lifting of luminosity technology, LED is applied to lighting use has become the present optics and following trend.Because the volume of LED is very little; The luminous lumen of single LEDs yet can't be compared with general osram lamp, fluorescent lamp or existing lighting, therefore, and present LED lighting; All be that plurality of LEDs is combined, produce practical brightness of illumination by concentrating luminous.
A plurality of LED are integrated into concentrated luminous no doubt can reaching and the general identical illuminating effect of light fixture in the particular area, are spot light but its shortcoming is LED, with regard to the distribution of light; Center brightness with LED is the highest, and light source is too concentrated, therefore; When the LED more than two uses simultaneously, form repeatedly shadow or rail shadow easily, be under this lighting environment; Eyes receive this influence that changes shadow or rail shadow to form the eyes discomfort easily, and then produce dizzy phenomenon.
Summary of the invention
The object of the present invention is to provide a kind of device of eliminating change shadow or the rail shadow that produce when a plurality of point source of lights are approaching to be provided with.
The change device of shadow or rail shadow of elimination point source of light of the present invention, for the periphery at point source of light is provided with a media set, said media set has an incidence surface and an exiting surface, and this incidence surface and exiting surface are the cambered surface that can light be disperseed.Said cambered surface is parabola or sphere.
Elimination point source of light of the present invention changes in the device of shadow or rail shadow, and said point source of light is LED.
Elimination point source of light of the present invention changes in the device of shadow or rail shadow, and said media set is lens.
Elimination point source of light of the present invention changes in the device of shadow or rail shadow, and said lens are the cylindrical body of hollow, and the inner surface of this cylindrical body is an incidence surface, and the outer surface of this cylindrical body is an exiting surface.Perhaps, said lens are a column, and an end of this column is an incidence surface, and the ring perimeter surface of this column is an exiting surface.
Elimination point source of light of the present invention changes in the device of shadow or rail shadow, and the outer race of said lens is provided with a lampshade.Be added with fluorescent material in the said lampshade, make the mixed light that is able to penetrate the blend of colors of this light source and fluorescent material from this lampshade.
Elimination point source of light of the present invention changes in the device of shadow or rail shadow, and said incidence surface and/or exiting surface are provided with optical texture.Said optical texture is a plurality of thin prominent points, and perhaps, said optical texture is a plurality of thin concave points.
The present invention also provides a kind of change device of shadow or rail shadow of point source of light of eliminating, and includes:
One first media set has an incidence surface and an exiting surface, and this incidence surface is the plane, and this exiting surface is can be with the cambered surface of light dispersion;
One second media set has the incidence surface and the exiting surface that are the plane;
The exiting surface of the incidence surface of said first media set and this second media set near to or in contact with, light source is injected from the incidence surface of this second media set, penetrates from the exiting surface of this first media set again.
The present invention provides a kind of change device of shadow or rail shadow of point source of light of eliminating in addition, includes:
One first media set has an incidence surface and an exiting surface, and this incidence surface is can be with the cambered surface of light dispersion, and this exiting surface is the plane;
One second media set has the incidence surface and the exiting surface that are the plane;
The incidence surface of the exiting surface of said first media set and this second media set near to or in contact with, light source is injected from the incidence surface of this first media set, penetrates from the exiting surface of this second media set again.
The mode that the present invention utilizes the collocation of two media sets to form can form the plane with the incidence surface of one first media set, and exiting surface forms cambered surface, or incidence surface is cambered surface, and exiting surface is the plane; Second media set then has incidence surface and the exiting surface that is the plane; Make second media set exiting surface and first media set incidence surface near to or in contact with; Or the exiting surface of the incidence surface of second media set and first medium near to or in contact with; Light source is injected light from the incidence surface of first media set or second media set, and penetrated, can reach the effect of eliminating repeatedly shadow or rail shadow by the exiting surface of second media set or first media set.
Description of drawings
Fig. 1 is the change profile sketch map of device of shadow or rail shadow of elimination point source of light according to the invention.
Fig. 2 is the floor map of looking up of Fig. 1.
Fig. 3 is the change first example structure cross-sectional schematic of the lens in the device of shadow or rail shadow of elimination point source of light according to the invention.
Fig. 4 is the change second example structure cross-sectional schematic of the lens in the device of shadow or rail shadow of elimination point source of light according to the invention.
Fig. 5 is for being added with the embodiment plan cross-section sketch map of fluorescent material in lens of the present invention.
Fig. 6 utilizes the embodiment sketch map of two lens as media set for the present invention.
Fig. 7 utilizes two lens another embodiment sketch map as media set for the present invention.
The specific embodiment
Those skilled in the art below cooperate Figure of description that embodiment of the present invention is done more detailed explanation, so that can implement after studying this specification carefully according to this.
Like Fig. 1, shown in 2; The change device of shadow or rail shadow of elimination point source of light provided by the invention; It is a kind of lighting apparatus as light source that is applied to adopt such as LED; The body of said lighting apparatus includes the pedestal 4 that an appearance possesses a plurality of radiating fins, and the front end of pedestal 4 is provided with a light source base 3, and 3 of light source bases are embedded a plurality of point source of lights 2; At embodiments of the invention, said point source of light 2 is LED; The outside of each light source 2 then is covered with lens 1 as media set.The inside of pedestal 4 also is provided with and is used for the circuit board and the driver (not shown) of driving light source, in pedestal 4 rear ends one bulb socket 5 is set again, and a lamp holder 6 is installed at last again; When lamp holder 6 is connected in lamp socket and switches on, get so that light source 2 is luminous, light casts out from lens 1 again.
As shown in Figure 3; The present invention is for a wherein preferred embodiment of said lens 1, and for forming the cylindrical body of hollow, the inner surface of this cylindrical body is an incidence surface 11; The outer surface of this cylindrical body is an exiting surface 12; In addition, this incidence surface 11 is with exiting surface 12 can be with the cambered surface of light diffusion, this cambered surface can be parabola, sphere, aspheric surface ... Etc. form; Moreover in order to obtain further anaclasis and reflection and improve the effect of brightness, said incidence surface 11 and/or exiting surface 12 can be provided with optical texture; This optical texture can adopt technology such as sandblast atomizing, etching, machinery or radium-shine processing to mold a plurality of thin prominent points or thin concave point at incidence surface and exiting surface.After said lens 1 are placed in outside the light source 2; When light source 2 is luminous; Light is able to get into lens from incidence surface 11, penetrates from exiting surface 12 again, and is more soft after by lens 1 light being disperseed, spreads; Thereby concentrate when being provided with at most light sources, can avoid producing repeatedly bad visual impacts such as shadow or rail shadow.
As shown in Figure 4 again, be the present invention another embodiment for said lens 1, said lens 1 form column, and an end of this column is an incidence surface 11, and the ring perimeter surface of column is an exiting surface 12; Same, said incidence surface 11 is with exiting surface 12 can be with the cambered surface of light diffusion, this cambered surface can be parabola, sphere, aspheric surface ... Etc. form; Identical with aforementioned person, in order to obtain further anaclasis and reflection and improve the effect of brightness, said incidence surface 11 and/or exiting surface 12 can be provided with aforesaid optical texture.The lens 1 of said column can be inserted in the lampshade 13, again with lens 1 outside lampshade 13 is sheathed on light source 2.When light source 2 was luminous, light was able to get into lens from the incidence surface 11 of the lens 1 of column, penetrates from exiting surface 12 again, passes lampshade 13 then, likewise can be softer by lens 1 disperse light, spread afterwards.Moreover in order to obtain more near the effect of natural daylight, an amount of fluorescent material also can be added during fabrication in said lampshade 13 inside, this fluorescent material can be according to will obtain photochromic of institute the selection color.
Person in addition, the three primary colors of light are ruddiness, green glow and blue light, present white light LEDs; The color of its light is too dazzling, and color rendering is poor, therefore; In order to obtain more natural light, the present invention also can be when making lens, according to the fluorescent material 14 (as shown in Figure 5) of actual needs portion's interpolation within it appropriate color; The light that light source projects is come out is able to mix to form increase with fluorescent material the mixed light of color rendering, makes it more level off to white light.For example, when said light source 2 is blue light, can add yellow, green or red fluorescence material in this lens 1, can make the mixed light that penetrates from this exiting surface more near white light or natural daylight; Certainly, also can adjust the proper proportion of this fluorescent material according to consumer demand, to produce various different colours light.
Fig. 6 is for showing that the present invention can wherein, can form the incidence surface 11 of one first lens 1A the plane by the embodiment of two lens as the media set matched combined, and exiting surface 12 forms cambered surface; The second lens 1B then has the incidence surface 11 and exiting surface 12 that is the plane; Make the second lens 1B exiting surface 12 and the first lens 1A incidence surface 11 near to or in contact with; Light source 2 is injected light from the incidence surface 11 of the second lens 1B; Penetrate from the exiting surface of the first lens 1A 12 at last, also can reach the change effect of shadow or rail shadow of identical elimination.Also can be in the said second lens 1B according to the fluorescent material that needs to add predetermined color, to produce the mixed light of expection.
Figure 7 is a lens of the present invention as a medium component by two combinations of another embodiment in which a first lens 1A can be the arc 11 is formed into the surface, the surface 12 is formed flat; s 1B the second lens having a planar surface 11 and the entry 12 of the surface, the incident surface of the second lens 1B, 1A, 11 and the first lens surface 12 of the proximity or contact, and then the light source 2, the light from the first lens 1A is incident into the surface 11, and finally out of the second lens surface 12 1B emitted with the same specifications to achieve the elimination or track Diego shadow shadow effect.Also can be in the said second lens 1B according to the fluorescent material that needs to add predetermined color, to produce the mixed light of expection.
The above is merely in order to explain preferred embodiment of the present invention; Be not that attempt is done any pro forma restriction to the present invention according to this; Therefore, all have in that identical creation spirit is following do relevant any modification of the present invention or change, all must be included in the category that the invention is intended to protect.
Claims (8)
1. eliminate the change device of shadow or rail shadow of point source of light for one kind,, it is characterized in that for the periphery at point source of light is provided with a media set:
Said media set is lens, and these lens are a column, and an end of said column is an incidence surface, and the ring perimeter surface of this column is an exiting surface.
2. the change device of shadow or rail shadow of elimination point source of light as claimed in claim 1 is characterized in that said point source of light is LED.
3. the change device of shadow or rail shadow of elimination point source of light as claimed in claim 1 is characterized in that the outer race of said lens is provided with a lampshade.
4. the change device of shadow or rail shadow of elimination point source of light as claimed in claim 3 is characterized in that, is added with fluorescent material in the said lampshade, makes the mixed light that is able to penetrate the blend of colors of this light source and fluorescent material from this lampshade.
5. like the change device of shadow or rail shadow of any described elimination point source of light of claim 1 to 4, it is characterized in that said incidence surface and/or exiting surface are provided with optical texture.
6. the change device of shadow or rail shadow of elimination point source of light as claimed in claim 5 is characterized in that said optical texture is a plurality of thin prominent points.
7. the change device of shadow or rail shadow of elimination point source of light as claimed in claim 5 is characterized in that said optical texture is a plurality of thin concave points.
8. the change device of shadow or rail shadow of elimination point source of light as claimed in claim 1 is characterized in that, is added with fluorescent material in the said media set, makes the mixed light that is able to penetrate the blend of colors of this light source and fluorescent material from this exiting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101319352A CN101846287B (en) | 2009-03-27 | 2009-03-27 | Device for eliminating overlapping shadow or track shadow of point light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101319352A CN101846287B (en) | 2009-03-27 | 2009-03-27 | Device for eliminating overlapping shadow or track shadow of point light source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101846287A CN101846287A (en) | 2010-09-29 |
| CN101846287B true CN101846287B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101319352A Expired - Fee Related CN101846287B (en) | 2009-03-27 | 2009-03-27 | Device for eliminating overlapping shadow or track shadow of point light source |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102298690B (en) * | 2011-08-10 | 2014-04-16 | 深圳市民德电子科技有限公司 | Bar code reading device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2477944Y (en) * | 2001-02-01 | 2002-02-20 | 吴世雄 | LED vehicle lamp set |
| CN201003716Y (en) * | 2007-01-15 | 2008-01-09 | 易继先 | Luminous diode lamp cover |
| CN101153697A (en) * | 2007-08-13 | 2008-04-02 | 黄卓双 | Practical scattering type efficient energy-saving lamp |
| CN101324316A (en) * | 2007-06-15 | 2008-12-17 | 群康科技(深圳)有限公司 | LED module unit and back light module unit |
| CN201198995Y (en) * | 2008-05-16 | 2009-02-25 | 瀚昱能源科技股份有限公司 | LED lens structure and LED illuminating equipment used thereby |
| CN201502895U (en) * | 2009-03-27 | 2010-06-09 | 徐秀玲 | Light source device |
-
2009
- 2009-03-27 CN CN2009101319352A patent/CN101846287B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2477944Y (en) * | 2001-02-01 | 2002-02-20 | 吴世雄 | LED vehicle lamp set |
| CN201003716Y (en) * | 2007-01-15 | 2008-01-09 | 易继先 | Luminous diode lamp cover |
| CN101324316A (en) * | 2007-06-15 | 2008-12-17 | 群康科技(深圳)有限公司 | LED module unit and back light module unit |
| CN101153697A (en) * | 2007-08-13 | 2008-04-02 | 黄卓双 | Practical scattering type efficient energy-saving lamp |
| CN201198995Y (en) * | 2008-05-16 | 2009-02-25 | 瀚昱能源科技股份有限公司 | LED lens structure and LED illuminating equipment used thereby |
| CN201502895U (en) * | 2009-03-27 | 2010-06-09 | 徐秀玲 | Light source device |
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| Publication number | Publication date |
|---|---|
| CN101846287A (en) | 2010-09-29 |
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Granted publication date: 20120704 Termination date: 20130327 |