CN101210657A - Linear lighting device - Google Patents
Linear lighting device Download PDFInfo
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- CN101210657A CN101210657A CNA2006101703211A CN200610170321A CN101210657A CN 101210657 A CN101210657 A CN 101210657A CN A2006101703211 A CNA2006101703211 A CN A2006101703211A CN 200610170321 A CN200610170321 A CN 200610170321A CN 101210657 A CN101210657 A CN 101210657A
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- light
- lens pillar
- lighting device
- linear lighting
- emitting module
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Abstract
The invention provides a linear lighting device which comprises at least one light-emitting module and a columnar lens, wherein the columnar lens has front and rear ends; the light-emitting module is arranged at the rear end inside the columnar lens; the columnar lens has an isosceles trapezoidal cross section in a plane vertical to the left and right side walls, so that the two side walls form symmetric totally reflecting surfaces to vertically project the totally-reflected lights towards the front end of the columnar lens, producing a linear light beam; the front end of the columnar lens is raised outwards to form a light-condensing surface, so that when the lights passing through the light-condensing surface is projected towards the front end of the columnar lens, the lights can be gathered within an illumination range by the light-condensing surface.
Description
Technical field
What the present invention relates to is a kind of lighting device, especially refer to that a kind of two sidewalls in lens pillar are the fully reflecting surface of symmetry, and the lens pillar front end is outwards to be convexly equipped with to form a caustic surface, all is projected to the linear lighting device of a linear light photograph before lens pillar in the scope of extreme direction with the light that light emitting module is sent.
Background technology
Special light projection is all passed through in exhibition places such as general museum, National Portrait Gallery, and the characteristic of show piece is set off by contrast out.Yet the light temperature that general projecting lamp sends is higher, and has ultraviolet ray, causes the impaired of show piece easily after long-time irradiation.In addition, the exhibition illumination generally should not be adopted colored light, because of the use of colored light can make show piece color originally change.Therefore, general lighting installation also can't be applied in the described exhibition fully.
Present advertising signboard miscellaneous and lamp box still provide a very attractive and effective advertising media, general its inside all is equiped with the daylight light fixture of many polyphone Wiring types to reach the purpose of night illumination, yet, for reaching required brightness of illumination, must use a large amount of light fixtures, consume very much electric power, and most electric energy consumes on heat energy all, and cause the waste of resource.
Traditional stabilizer lamp need use starter, and lighting fluorescent tube, if when wherein a fluorescent tube damages, then its light fixture of connecting all can't start, and is difficult for changing the fluorescent tube that consumes because of advertising signboard is arranged on higher floor location more.Moreover what fluorescent tube sent is the diffuse transmission type light source, and illuminance is not high, and light gathering is not good especially, then fluorescent lamp must be set thick and fast alleviating the blanking bar phenomenon of shadow in lamp box, and also the variation that can't do any light is to increase advertising effect.In addition, the benefit that reclaims fluorescent tube at present is clear, and the mercury in the fluorescent tube is for the pollution of environment, even the health of human body all can cause great influence.Therefore,,, use fluorescent tube to cause many secret worries, just become the extremely interesting problem of industry so develop new lighting apparatus in future though traditional fluorescent tube cost is cheap considering to change under the frequency and maintenance cost of fluorescent tube.
Total reflection phenomenon in optics can arrive light transmission extremely remote, and does not have the loss of light at the light reflex time.By the principle that can derive total reflection in the refraction theorem of light, promptly when light enters into close medium by thin medium, incidence angle can be greater than the refraction angle, and light is entered into when dredging medium by close medium, the refraction angle can be greater than incidence angle, the refraction angle increases and increases along with incidence angle, and the part of light refraction increases and reduces along with the refraction angle; Spend when the refraction angle equals 90, this moment, pairing incidence angle was called the cirtical angle of total reflection (criticalangle), and when incidence angle was bigger than critical angle, light can stop to enter another interface, no longer includes refract light, and total reflection phenomenon just can take place; Because refraction not all is reflection, makes whole light all in the same medium of reflected back, and this phenomenon claims is total reflection (total reflection).
Total reflection principle has been applied on telecommunications industry and the introscope, and optical fiber promptly utilizes this principle and makes.And LED has widely applied in having the facility of deixis at present, if can be apt to add in conjunction with the advantage of LED and the application of total reflection principle, and the lighting installation that exploitation makes new advances not only can reduce the waste of the energy, and can increase various lighting effects.
In view of this, in order to improve above-mentioned shortcoming, make the employed lighting device of advertising lamp box can produce the even and diversified advertising results of light source, and have power saving and the purpose that reduces maintenance cost concurrently, long-pending experience for many years of inventor and constantly research and development improvement have generation of the present invention then.
Summary of the invention
Main purpose of the present invention is providing a kind of linear lighting device, the cross section that has antiparallelogram in the plane by lens pillar two sidewalls about vertical, make described two sidewalls form the fully reflecting surface of symmetry, with all extreme direction perpendicular projection being aligned illumination before lens pillar of the light after the total reflection.
Secondary objective of the present invention is providing a kind of linear lighting device, by being outwards to be convexly equipped with to form a caustic surface in the lens pillar front end, can make light through described caustic surface before lens pillar during the extreme direction projection, can be again by described caustic surface with collected light in an illumination range.
Another object of the present invention is providing a kind of linear lighting device, as light emitting module, can make described linear lighting device reach power saving, durable purpose by a LED matrix.
Another purpose of the present invention is providing a kind of linear lighting device, produces integrated lens pillar by utilizing plastic material, need not electroplate any metal level, reclaims easily to re-use, and can reach the demand that reduces cost with environmental protection.
In order to achieve the above object, linear lighting device of the present invention, comprise an at least one light emitting module and a lens pillar, wherein, described light emitting module is to be installed in rear end within the described lens pillar, described lens pillar has the rear and front end, and the cross section that has antiparallelogram in the plane of described lens pillar two sidewalls about vertical, make its two sidewall form the fully reflecting surface of symmetry, with with all extreme direction perpendicular projection being aligned illumination before lens pillar of the light after the total reflection, and the lens pillar front end is outwards to be convexly equipped with to form a caustic surface, make light through described caustic surface before lens pillar during the extreme direction projection, can by described caustic surface with collected light in an illumination range.
Description of drawings
Fig. 1 is the embodiment profile in use of linear lighting device of the present invention;
Fig. 2 is the stereo appearance figure of the embodiment of linear lighting device of the present invention;
Fig. 3 is the stereo appearance figure of another angle of embodiment of linear lighting device of the present invention;
Fig. 4 is the cross-wise direction of linear lighting device of the present invention and the light shape distribution map of long axis direction;
Analogous diagram when Fig. 5 uses for linear lighting device of the present invention is actual.
Description of reference numerals: 1-linear lighting device; The 11-lens pillar; The 111-sidewall; The 112-caustic surface; The 12-light emitting module; The 13-hole; The light shape of a-cross-wise direction distributes; The light shape distribution map of b-long axis direction.
The specific embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
See also Fig. 1-Fig. 3, it is an embodiment of linear lighting device 1 of the present invention, comprises a light emitting module 12 and a lens pillar 11.
Described light emitting module 12 is the middle positions that are installed in described lens pillar 11 inner rear ends, described lens pillar 11 has the rear and front end, and described lens pillar 11 has the cross section of antiparallelogram in two sidewalls 111,111 ' the plane about vertical, make its two sidewall 111,111 ' symmetrical mutually, and the middle position of described lens pillar 11 front ends outwards convexes with a caustic surface 112, and described caustic surface 112 is to be the circular curve shape.
During enforcement, described light emitting module 12 is one to have the LED matrix of a plurality of LED (light emitting diode), and described LED is configured on the center of above-mentioned caustic surface 112.Described LED matrix also comprises an Electronic Control plate (not shown), and described Electronic Control plate is to connect power supply, to accept luminous required voltage of LED and electric current; Because the volume of LED bulb is little, caloric value is low, when being embedded in the hole of lens pillar 11 inner rear ends, driving that can be by described Electronic Control plate is to produce the lighting effects of multiple variation.
Described lens pillar 11 is one by transparent plastic material, acryl (PolymethylMethacrylate, polymethyl methacrylate) for example, the sealing solid of making.For making two sidewalls 111 of lens pillar 11,111 ' forms the fully reflecting surface of symmetry, described lens pillar 11 is two sidewalls 111 about vertically, the cross section that has antiparallelogram in 111 ' the plane, when the light that is sent by light emitting module will be entered air (refractive index is near 1) than low-refraction by the lens pillar 11 (refractive index is 1.48) of high index, outer two oblique sidewalls 111,111 ' the incidence angle that can make light is exactly more than or equal to the cirtical angle of total reflection (incidence angle that is light is all more than or equal to 42.5 degree), with all from sidewall 111, light extreme direction perpendicular projection being aligned illumination before lens pillar 11 of 111 ' reflection.
In addition, the caustic surface 112 that lens pillar 11 front ends outwards are convexly equipped with can make light that light emitting module 12 sends when lens pillar 11 front ends carry out, and, and is incident upon in the illumination range with collected light by described caustic surface 112.
Therefore, please consult Fig. 4 and Fig. 5 again, wherein Fig. 4 is the cross-wise direction of lens pillar 11 of the present invention and the light shape distribution map of long axis direction, and the simulation drawing of Fig. 5 when being actual use.The lens pillar of making by the way 11, through can knowing and find out after the experiment, the light that light emitting module 12 sends is when lens pillar 11 front ends carry out, by described caustic surface 112 with collected light, and be incident upon in the illumination range, and be the illumination range of a linearity.
Described lens pillar 11 can produce suitable size according to practical application, precisely because two sidewalls 111,111 ' are necessary for the fully reflecting surface of symmetry, to reach best total reflection effect, will be from all extreme direction perpendicular projection being aligned illumination before lens pillar 11 of light after sidewall 111,111 ' is gone up total reflection.And when using the present invention (for example advertising lamp box), also can install a heat abstractor at described LED matrix rear to prolong the life-span of LED in the space that seals.
Therefore, the present invention has following advantage:
The present invention is by the source of LED as light emitting module, and power consumption is low and the life-span is long, can replace the fluorescent tube that tradition needs starter, with the lighting device as advertising signboard or lamp box, can significantly reduce maintenance cost and reach the trend of environmental protection and energy saving.
The present invention is the fully reflecting surface of light with lens pillar two sidewall design, and be convexly equipped with a caustic surface at the lens pillar front end, light evenly can be accumulated in the scope of lens pillar front end, promoting the effect of light-source brightness and linear irradiation, for advertising signboard and lamp box increase various lighting effects.
The present invention need not to electroplate any metal film can reach the effect of concentrating light, and its lens pillar is shock-resistant, it is broken to be difficult for, fully recycling and reach the purpose of environmental protection.
The present invention is made into various sizes easily on demand, also can be applicable to the various exhibition spaces that need the special lighting design.
In sum, hold according within above disclosing, the present invention really can reach the intended purposes of invention, provide a kind of and can not only effectively evenly concentrate light, have the linear lighting device that reduces maintenance cost and can be widely used in various commercial lightings place concurrently, have the value of utilizing on the industry, propose application for a patent for invention in accordance with the law.
The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (5)
1. linear lighting device, it is characterized in that: it comprises:
At least one light emitting module;
One lens pillar, has the rear and front end, described light emitting module is the rear end, inside that is installed in described lens pillar, and the cross section that has antiparallelogram in the plane of lens pillar two sidewalls about vertical, its two sidewall forms the fully reflecting surface of symmetry, with with all extreme direction perpendicular projection being aligned illumination before lens pillar of the light after the total reflection, and the lens pillar front end is outwards to be convexly equipped with to form a caustic surface, through the extreme direction projection before lens pillar of the light of described caustic surface, by described caustic surface with collected light in an illumination range.
2. linear lighting device according to claim 1 is characterized in that: described light emitting module is a LED matrix.
3. linear lighting device according to claim 1 is characterized in that: described lens pillar is a sealing solid, and described light emitting module is to be embedded in lens pillar.
4. linear lighting device according to claim 1 is characterized in that: described lens pillar is to be made by plastic material.
5. linear lighting device according to claim 1 is characterized in that: described lens pillar is to be made by transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101703211A CN101210657A (en) | 2006-12-28 | 2006-12-28 | Linear lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101703211A CN101210657A (en) | 2006-12-28 | 2006-12-28 | Linear lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101210657A true CN101210657A (en) | 2008-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101703211A Pending CN101210657A (en) | 2006-12-28 | 2006-12-28 | Linear lighting device |
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| Country | Link |
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| CN (1) | CN101210657A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010069101A1 (en) * | 2008-12-16 | 2010-06-24 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Led light shaping device and illumination system |
| US8061857B2 (en) | 2008-11-21 | 2011-11-22 | Hong Kong Applied Science And Technology Research Institute Co. Ltd. | LED light shaping device and illumination system |
| CN102287715A (en) * | 2011-08-23 | 2011-12-21 | 上海太阳能电池研究与发展中心 | Large-area uniform surface light source device |
| CN101994991B (en) * | 2009-08-27 | 2012-02-29 | 杨璨源 | Energy saving lamp |
| CN103307473A (en) * | 2012-03-07 | 2013-09-18 | 上海可莱特电子有限公司 | Cylindrical lens type led fluorescent lamp |
| CN111434984A (en) * | 2018-12-26 | 2020-07-21 | 联嘉光电股份有限公司 | L ED vehicle-mounted linear light-emitting module |
-
2006
- 2006-12-28 CN CNA2006101703211A patent/CN101210657A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8061857B2 (en) | 2008-11-21 | 2011-11-22 | Hong Kong Applied Science And Technology Research Institute Co. Ltd. | LED light shaping device and illumination system |
| WO2010069101A1 (en) * | 2008-12-16 | 2010-06-24 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Led light shaping device and illumination system |
| CN101990614B (en) * | 2008-12-16 | 2012-10-10 | 香港应用科技研究院有限公司 | Led light shaping device and illumination system |
| CN101994991B (en) * | 2009-08-27 | 2012-02-29 | 杨璨源 | Energy saving lamp |
| CN102287715A (en) * | 2011-08-23 | 2011-12-21 | 上海太阳能电池研究与发展中心 | Large-area uniform surface light source device |
| CN103307473A (en) * | 2012-03-07 | 2013-09-18 | 上海可莱特电子有限公司 | Cylindrical lens type led fluorescent lamp |
| CN111434984A (en) * | 2018-12-26 | 2020-07-21 | 联嘉光电股份有限公司 | L ED vehicle-mounted linear light-emitting module |
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