CN103574497B - Quadrangular micromirror LED traffic light optical face cover - Google Patents
Quadrangular micromirror LED traffic light optical face cover Download PDFInfo
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- CN103574497B CN103574497B CN201310590011.5A CN201310590011A CN103574497B CN 103574497 B CN103574497 B CN 103574497B CN 201310590011 A CN201310590011 A CN 201310590011A CN 103574497 B CN103574497 B CN 103574497B
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Abstract
The invention relates to a quadrangular micromirror LED traffic light optical face cover. The optical face cover is formed by a plurality of micromirrors which are arranged on a supporting body. Each micromirror comprises six ridge faces, wherein the five ridge faces are planes and another ridge face is a convex face. The quadrangular micromirror LED traffic light optical face cover can distribute luminous flux of parallel light of a Fresnel lens through the refraction action to meet the light distribution requirements. According to luminous flux conservation of the face cover, the luminous flux required by the light distribution is equal to the corresponding area of the face cover. Thus, the corresponding area of the face cover in the direction can be determined according to light distribution requirements, and accordingly a refraction angle can be decided. According to the obtained refraction angle, the corresponding curvature of the face cover in the direction can be determined, and further the required curved surface of the face cover can be obtained.
Description
Technical field
The present invention relates to a kind of optical mask, more particularly to one kind change fiber line by little micro mirror, reach satisfaction
The tetragon little micro mirror led traffic light optical mask of light intensity requirement standard.
Background technology
Light emitting diode (light emitting diode, led) is the semiconductor diode that a kind of energy lights, and it is one
Plant the luminescent device directly electric energy being converted into light and radiation energy.Light emitting diode has the advantages that many: running voltage is low, power consumption
Amount is few, and luminous efficiency is high: stable performance, life-span length: shock resistance, vibration resistance is strong: lightweight, small volume, low cost.2000
Year oneself solve the signal display problem of all led colors, thus led oneself be applied to all of traffic light field through possessing
Condition.Led traffic light high color purity, especially distinct it is easy to signal identification.At present, led has been widely used for handing over
Ventilating signal lamp field, and progressively substituting classical signal lamp.
Flourishing with semiconductor lighting, the power of LED light source, light efficiency are constantly improve, and the size of led chip
Increasingly develop to miniaturization, the peak brightness that this also result in LED light source persistently strengthens, high-power white light in the market
Led(power is more than 1w) peak brightness at light source is substantially all in 1,000,000 cd/m2, can produce when human eye directly sees LED light source
, there is serious glare problem, human eye can be damaged when serious in raw discomfort.
In order to reach the requirement to optical distribution in GB gb14887-2011, each producer adopts secondary optical design one after another
The light that led is sent carries out secondary optics distribution again.In secondary optical design, can in the way of adopting be: adopt optics
Mask, lens, the combination of led three will provide one realizing the specific optical effect required for signal lighties, the present patent application
Plant the optical mask of high-quality.
Content of the invention
For the problems referred to above, present invention is primarily targeted at providing one kind to change fiber line by little micro mirror, reach
Meet the tetragon little micro mirror led traffic light optical mask of light intensity requirement standard.
The present invention is to solve above-mentioned technical problem by following technical proposals: a kind of little micro mirror led traffic of tetragon
Signal lighties optical mask, described optical mask be one by a plurality of little arrangement of micro mirrors the mask on a supporter, described little
Micro mirror includes thering is six faceted pebbles, has five to be plane, another is convex surface, with convex surface in described six faceted pebbles in six faceted pebbles
Relative faceted pebble is the plane of a rectangle；In adjacent with convex surface four planes in six faceted pebbles, there is a pair relative planar shaped
Shape identical faceted pebble, is the shape that a rectangle adds an arc, another relative flat shape is differed, one is one
Individual rectangle adds the faceted pebble i of the shape of an arc, and the rectangle that another is bigger than the former rectangle adds the shape of an arc
Faceted pebble ii, in six faceted pebbles, convex surface and the plane relative with convex surface carry out the refraction of light, and remaining four faceted pebble is little with surrounding
Micro mirror integrally connected, little micro mirror is arranged in arrays, and the plane in all little micro mirrors is at grade；In a little micro mirror one
Individual rectangle adds that the faceted pebble i of the shape of an arc is connected with faceted pebble ii；In little micro mirror, in flat shape identical faceted pebble
One is connected with faceted pebble identical faceted pebble in another little micro mirror.
In a preferred embodiment of the present invention: after a branch of parallel longitudinal light passes through little micro mirror, little micro mirror projects
Light longitudinally down, after a branch of horizontally-parallel light passes through little micro mirror, laterally gathering to center, six faceted pebbles of little micro mirror
In, convex surface is injected in parallel rayies, through refraction, then projects through plane refraction, the light of injection longitudinally down concentrating, laterally to
Center is gathered.
In a preferred embodiment of the present invention: directional light with respect to convex surface, the scope of angle of incidence angle is 0 °-
70 °, the scope of angle of emergence angle is 0-55 °.
In a preferred embodiment of the present invention: described supporter and little micro mirror are integrally formed.
In a preferred embodiment of the present invention: the shape of the fluorescent tube that described supporter covers as needed determines.
In a preferred embodiment of the present invention: described supporter is circle, oval, polygon.
The positive effect of the present invention is: the tetragon little micro mirror led traffic light optical face that the present invention provides
Luminous flux is allocated, the parallel rayies of Fresnel Lenses to reach required light distribution requirements by cover by refraction action.Mask
According to Flux conservation, the luminous flux required by luminous intensity distribution and area equation corresponding to mask, therefore can be true according to light distribution requirements
Determine the corresponding area to the direction for the mask, thus determining its refraction angle；According to the refraction angle obtained, determined by the law of refraction
The direction corresponding mask curvature, and then can be obtained by required mask curved surface.
Brief description
Fig. 1 is the structural representation of whole optical mask.
Fig. 2 is the axonometric chart of little micro mirror.
Fig. 3 is the front view of little micro mirror.
Fig. 4 is the left view of little micro mirror.
Fig. 5 is the right view of little micro mirror.
Fig. 6 is the upward view of little micro mirror.
Fig. 7 is the top view of little micro mirror.
Fig. 8 is the structural representation being arranged on whole led traffic light of optical mask.
Fig. 9 is that a branch of parallel longitudinal light projecting after Fresnel Lenses passes through the refraction effect figure after little micro mirror.
Figure 10 is that a branch of horizontally-parallel light projecting after Fresnel Lenses passes through the refraction effect figure after little micro mirror.
Specific embodiment
Provide present pre-ferred embodiments below in conjunction with the accompanying drawings, to describe technical scheme in detail.
Fig. 1 is the structural representation of whole optical mask.As shown in Figure 1: the tetragon little micro mirror led that the present invention provides hands over
Ventilating signal lamp optical mask, this optical mask is the mask that one side is arranged on a supporter 2 by a plurality of little micro mirrors 1,
Support body and little micro mirror are integrally formed, and are integrally formed the optical mask of formula.
Fig. 2 is the axonometric chart of little micro mirror, and Fig. 3 is the front view of little micro mirror, and Fig. 4 is the left view of little micro mirror, and Fig. 5 is little micro-
The right view of mirror, Fig. 6 is the upward view of little micro mirror, and Fig. 7 is the top view of little micro mirror.As illustrated in figs. 2-7, optical mask be one by
A plurality of little micro mirrors 1 are arranged in the mask on a supporter 2, and little micro mirror 1 includes thering is six faceted pebbles, has five in six faceted pebbles
Individual for plane, another is convex surface 104, and in six faceted pebbles, the faceted pebble relative with convex surface 104 is the plane 103 of a rectangle；Six
In adjacent with convex surface 104 four planes in faceted pebble, there are a pair relative flat shape identical faceted pebble, 105 in Fig. 4 or 5
Or 106, be the shape that a rectangle adds an arc, another relative flat shape is differed, one is a rectangle
Plus the faceted pebble i101 of the shape of an arc, the rectangle that another is bigger than the former rectangle adds the rib of the shape of an arc
Face ii102, in six faceted pebbles, convex surface 104 and the plane 103 relative with convex surface carry out the refraction of light, remaining four faceted pebble with
Little micro mirror 1 integrally connected of surrounding, little micro mirror 1 is arranged in arrays, and the plane 103 in all little micro mirrors 1 is at grade；One
One of little micro mirror 1 rectangle adds that the faceted pebble i101 of the shape of an arc is connected with faceted pebble ii102；In little micro mirror, put down
One of face shape identical faceted pebble 105 or 106 is connected with faceted pebble identical faceted pebble 105 or 106 in another little micro mirror.
After a branch of parallel longitudinal light passes through little micro mirror, the light that little micro mirror projects is longitudinal down, a branch of horizontally-parallel light
Through after little micro mirror, laterally gathering to center, in six faceted pebbles of little micro mirror, convex surface 104 is injected in parallel rayies, through refraction,
Reflect through plane 103 again and project, the light of injection is longitudinally down being concentrated, and is laterally gathering to center.Directional light is with respect to convex
Face 104, the scope of angle of incidence angle is 0 ° -70 °, and the scope of angle of emergence angle is 0-55 °.
In specific implementation process, the general and little micro mirror 1 of supporter 2 is to be integrally formed it is also possible to connect by other means
Together.
The shape of the fluorescent tube that supporter 2 covers as needed determines, in specific implementation process, supporter 2 can be circle
Shape, oval, polygon.
Fig. 8 is the structural representation being arranged on whole led traffic light of optical mask.As shown in figure 8, in optics
When mask is arranged on whole led traffic light, optical mask and signal lighties back shroud 10 are movably connected, and led inserts
Part plate 3 is fixed on signal lighties back shroud 10, in order to ensure more preferable radiating effect, in led card 3 and signal lighties back shroud
It is provided with heat sink 8, further, in order to ensure best radiating effect, signal lighties back shroud 10 and heat sink 8 between 10
Between be provided with heat-dissipating space 9.A plural led traffic light 4 are arranged on led card 3, in led traffic light 4
The one led lens 6 covering on outside led traffic light 4 are mounted on each, optical mask is one by a plurality of little micro mirrors 1
It is arranged in the mask on a supporter 2, optical mask has the one of the arrangement of little micro mirror 101 facing to led lens 6, led traffic
Signal lighties optical module also include one and optical mask be fixed together change light path Fresnel Lenses 5, optical mask
On have the one side of little micro mirror 1 arrangement towards Fresnel Lenses 5.Fresnel Lenses 5 is arranged on the one of little micro mirror 1 on optical mask
Between face and led lens 6.
Fresnel Lenses is respectively arranged with space, near the sky of led lens near led lens near the one side of little micro mirror
Gap is more than the space of the one side near little micro mirror.Typically following multiple proportion can be selected: Fresnel Lenses is near led lens
The height in space is 5-20 times of the height in the space of one side near little micro mirror.
The number scope of led traffic light is 2-10.
The effect of mask major optical is by the parallel rayies of Fresnel Lenses, is carried out point luminous flux by refraction action
Join, to reach required light distribution requirements.Mask designs mainly use two aspect principles: 1, Flux conservation, required by luminous intensity distribution
Luminous flux and area equation corresponding to mask, therefore can determine the corresponding area to the direction for the mask according to light distribution requirements, from
And determine its refraction angle；2nd, the refraction angle according to calculated by 1, determines the direction corresponding mask curvature by the law of refraction,
And then the mask curved surface required for can be obtained by.
Fig. 9 is that a branch of parallel longitudinal light projecting after Fresnel Lenses passes through the refraction effect figure after little micro mirror.
According to standard gb14887-2011 " road traffic signal lamp ", to reference axis level, different angles have the requirement of light intensity index downwards,
And to reference axis level, angle upwards does not have light intensity index request, and motor vehicles or pedestrian see that traffic light are all look up,
This requires light that traffic light exiting surface sends longitudinally as far as possible down, and little micro mirror mask is according to little micro mirror curved surface curved
Rate, reaches change optowire, meets the requirement to light intensity for the standard.
Figure 10 is that a branch of horizontally-parallel light projecting after Fresnel Lenses passes through the refraction effect figure after little micro mirror.
According to the requirement to light intensity about reference axis central light strength and reference axis for standard gb14887-2011 " road traffic signal lamp ", in
Between maximum, left and right is gradually reduced, and this requires that the light that traffic light exiting surface sends laterally will concentrated toward middle, little micro-
Minute surface cover, according to little micro mirror curvature of curved surface, reaches change optowire, meets the requirement to light intensity for the standard.
Ultimate principle and principal character and the advantages of the present invention of the present invention have been shown and described above.The technology of the industry
, it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description is originally for personnel
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement both fall within scope of the claimed invention, claimed scope by appending claims and its
Equivalent thereof.
Claims (4)
1. a kind of little micro mirror led traffic light optical mask of tetragon it is characterised in that: described optical mask is one by plural number
Individual little micro mirror (1) is arranged in the mask on a supporter (2), and described little micro mirror (1) includes six faceted pebbles, has in six faceted pebbles
Five is plane, and another is convex surface (104), and in described six faceted pebbles, the faceted pebble relative with convex surface (104) is the flat of a rectangle
Face (103)；In adjacent with convex surface (104) four planes in six faceted pebbles, there is a pair relative flat shape identical faceted pebble
(105 or 106), are the shape that a rectangle adds an arc, another relative flat shape is differed, one is one
Rectangle adds the faceted pebble i (101) of the shape of an arc, and the rectangle that another is bigger than the former rectangle adds the shape of an arc
The faceted pebble ii (102) of shape, in six faceted pebbles, the plane (103) of convex surface (104) and the rectangle relative with convex surface carries out the folding of light
Penetrate, convex surface (104) is injected in parallel rayies, through refraction, then plane (103) refraction through the rectangle relative with convex surface is projected, by phenanthrene
Luminous flux is allocated by the parallel rayies of Nie Er lens by refraction action, to reach required light distribution requirements；Remaining four rib
Face and surrounding little micro mirror (1) integrally connected, little micro mirror (1) is arranged in arrays, the plane of the rectangle in all little micro mirrors (1)
(103) at grade；Add in one of a little micro mirror (1) rectangle the faceted pebble i (101) of shape of an arc with another
Faceted pebble ii (102) in one little micro mirror connects；In little micro mirror, one of flat shape identical faceted pebble (105 or 106)
It is connected with faceted pebble identical faceted pebble (105 or 106) in another little micro mirror；
After a branch of parallel longitudinal light passes through little micro mirror, longitudinally down, a branch of horizontally-parallel light passes through the light that little micro mirror projects
After little micro mirror, laterally gathering to center, in six faceted pebbles of little micro mirror, convex surface (104) is injected in parallel rayies, through refraction, then
Plane (103) refraction through rectangle is projected, and the light of injection is longitudinally down being concentrated, and is laterally gathering to center；Wherein, parallel
Light is 0 ° -70 ° with respect to convex surface (104), the scope of angle of incidence angle, and the scope of angle of emergence angle is 0-55 °.
2. the little micro mirror led traffic light optical mask of tetragon according to claim 1 it is characterised in that: described
Support body (2) and little micro mirror (1) are integrally formed.
3. the little micro mirror led traffic light optical mask of tetragon according to claim 1 and 2 it is characterised in that: described
The shape of the fluorescent tube that supporter (2) covers as needed determines.
4. the little micro mirror led traffic light optical mask of tetragon according to claim 3 it is characterised in that: described
Support body (2) is circle, oval, polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310590011.5A CN103574497B (en) | 2013-11-20 | 2013-11-20 | Quadrangular micromirror LED traffic light optical face cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310590011.5A CN103574497B (en) | 2013-11-20 | 2013-11-20 | Quadrangular micromirror LED traffic light optical face cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103574497A CN103574497A (en) | 2014-02-12 |
| CN103574497B true CN103574497B (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310590011.5A Active CN103574497B (en) | 2013-11-20 | 2013-11-20 | Quadrangular micromirror LED traffic light optical face cover |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444117A (en) * | 2015-12-31 | 2016-03-30 | 上海澳星照明电器制造有限公司 | Hexagonal microprism and hexagonal microprism LED (light-emitting diode) traffic signal lamp optical mask |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1611830A (en) * | 2003-10-30 | 2005-05-04 | 普拉斯特光学研究中心有限公司 | Light-emitting device, light-emitting panel for road signs or information to the public or motor vehicle lamp |
| CN101393710A (en) * | 2007-09-21 | 2009-03-25 | 富士迈半导体精密工业（上海）有限公司 | Billboard |
| CN101457901A (en) * | 2007-12-14 | 2009-06-17 | 富士迈半导体精密工业（上海）有限公司 | Light field controlling means and illuminating apparatus employing the light field controlling means |
| CN102478675A (en) * | 2010-11-30 | 2012-05-30 | 沈阳新松机器人自动化股份有限公司 | Curved-surface pyramidal micro-lens array and rear projection screen with the lens array |
-
2013
- 2013-11-20 CN CN201310590011.5A patent/CN103574497B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1611830A (en) * | 2003-10-30 | 2005-05-04 | 普拉斯特光学研究中心有限公司 | Light-emitting device, light-emitting panel for road signs or information to the public or motor vehicle lamp |
| CN101393710A (en) * | 2007-09-21 | 2009-03-25 | 富士迈半导体精密工业（上海）有限公司 | Billboard |
| CN101457901A (en) * | 2007-12-14 | 2009-06-17 | 富士迈半导体精密工业（上海）有限公司 | Light field controlling means and illuminating apparatus employing the light field controlling means |
| CN102478675A (en) * | 2010-11-30 | 2012-05-30 | 沈阳新松机器人自动化股份有限公司 | Curved-surface pyramidal micro-lens array and rear projection screen with the lens array |
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| CN103574497A (en) | 2014-02-12 |
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| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Fusheng Inventor after: Zhang Hui Inventor after: Zhou Jun Inventor after: Wu Mianchun Inventor after: Ye Xing Inventor before: Zhang Hui Inventor before: Li Fusheng Inventor before: Zhou Jun Inventor before: Wu Mianchun Inventor before: Ye Xing |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG HUI LI FUSHENG ZHOU JUN WU MIANCHUN YE XING TO: LI FUSHENG ZHANG HUI ZHOU JUN WU MIANCHUN YE XING |
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