CN102305357A - Anti-dazzle light fitting with adoption of flat LED (Light-Emitting Diode) light source - Google Patents
Anti-dazzle light fitting with adoption of flat LED (Light-Emitting Diode) light source Download PDFInfo
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- CN102305357A CN102305357A CN201110144846A CN201110144846A CN102305357A CN 102305357 A CN102305357 A CN 102305357A CN 201110144846 A CN201110144846 A CN 201110144846A CN 201110144846 A CN201110144846 A CN 201110144846A CN 102305357 A CN102305357 A CN 102305357A
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Abstract
The invention discloses an anti-dazzle light fitting with the adoption of a flat LED (Light-Emitting Diode) light source, comprising a flat LED light source and a shell arranged on one side opening on the back of the flat LED light source. The flat LED light source is fixedly arranged in the shell, and the light-emitting surface of the flat LED light source is opposite to the opening of the shell; a soft light lens parallel with the flat LED light source is also arranged at the opening of the shell; and a super polaroid is also attached on the inner side of the soft light lens. The anti-dazzle light fitting with the adoption of the flat LED (Light-Emitting Diode) light source has the advantages of fundamentally removing the phenomena of light spots, light rings and bright and dark stripes formed by a lighting source integrated by point light sources in light areas by arranging LED chips on a substrate in a rectangular array and packaging the whole chips on the substrate through packaging materials, thoroughly removing horizontal dazzles and improving the lighting effect by converting horizontal lights capable of producing the horizontal dazzles into vertical lights and lighting the vertical lights to the light areas by the super polaroid which is made of a special material, and further homogenizing and softening the light from the flat LED light source through the soft light lens.
Description
Technical field
The present invention relates to a kind of light fixture, particularly a kind of anti-dazzle light fixture that adopts the LED planar light source.
Background technology
Led light source has become the main flow of illumination and decoration and Landscape Lamp gradually with its long-life, low energy consumption and stronger stability; At present popular, and technological comparative maturity is the LED spot light, just common LED lamp pearl; As everyone knows; The illumination of single spot light is very limited, and its independent use can only be used as the status indicator lamp or the warning lamp of some equipment, and can not use as illumination; The ripe gradually reinforcement of energy-conserving and environment-protective being realized with people along with LED technology; The LED light fixture is gone on market gradually; Existing LED lighting all adopts several or more single LEDs spot light according to certain shape and density permutation and combination; Can effectively increase the projected area of LED light fixture, improve illumination, realize illumination purposes; But; Though this kind led light source can be used as the light source of light fixture and uses; But have wretched insufficiency: this is because the light beam that (), adjacent two LEDs light sources are sent can produce light interference phenomena, and the projected area be because interference of light can produce hot spot, the ring of light or light and shade striped with diffraction, human eye for a long time under this lamp lighting state work can produce seriously fatigue; To human eye is a kind of harm, particularly bigger to teenager's harm; (2), the light that sends of all light sources is omnidirectional light, omnidirectional light can simply be interpreted as the combination of horizontal light and vertical light, discovers: horizon light can produce dazzle, the dazzle meeting directly stimulates human eye, and vertical light can produce dazzle hardly; Though existing the employing in the integrated LED light fixture of plurality of LEDs spot light generally used reflection shield and scrim etc.; Can the light after spot light projection and the diffusion be reflexed to the field of illumination again to a certain extent; And common scrim also can reduce hot spot, the ring of light and light and shade district with the light softening.But it does not fundamentally solve the problem of horizontal dazzle, still can work the mischief to human eye; Human eye is under this lamp lighting state for a long time, still can produce fatigue.
Summary of the invention
Technical problem to be solved by this invention provides a kind of anti-dazzle light fixture of the LED of employing planar light source; It not only can effectively improve the illumination and the light efficiency of LED light fixture; Prevent effectively to prevent the harm of horizontal dazzle to human eye because the interference of light and diffraction produce the hot spot or the ring of light in the projected area.
Technical conceive of the present invention is to realize like this; Because existing LED lamp is on installation panel, to arrange later formation with the LED spot light according to certain shape or rule and density; Can know that by the light wave principle light beam that sends between consecutive points light source and the spot light can produce light interference phenomena, thereby form the ring of light, hot spot or light and shade striped in the projected area; The serious harm human eye is healthy; Simultaneously, the horizon light that light source sent also can the horizontal dazzle of generation, even adopt reflection shield and sheen lens can not fundamentally solve the projected area hot spot or the ring of light and horizontal glare phenomenon is arranged; As everyone knows; The LED spot light is that led chip is encapsulated in the epoxy resin; It is luminous to excite the PN junction of led chip through electric field, and its glow color is to decide through the fluorescent material that is encapsulated in the epoxy resin, and the illumination of single LEDs spot light and illumination zone are very limited; Though concentrate arrangement can improve illumination and illumination zone later it; But the light fixture that adopts this kind light source in use can produce certain harm to human eye because it can produce hot spot, the ring of light or light and shade striped in the field of illumination; The light source that adopts in the light fixture of the present invention is real LED planar light source, and being arranged on the substrate is not single LED spot light, but led chip; Through forming high-power rectangular array after integrated, and the unified mixture of epoxy resin and fluorescent material that uses is encapsulated in it in framework, forms an integral planar light source; Can send blue light after exciting through electric field; The activating fluorescent powder sends the white light of required colour temperature then, eliminates the problem that can produce the hot spot or the ring of light with the integrated light fixture of single LEDs spot light in the projected area fully, and the super polaroid that adopts special material to process also is set on the light fixture that adopts this LED planar light source to process in addition; This super polaroid not only can the filtration vessel levels direction light; Solve the dazzle that produces owing to horizontal light, and become vertical light after horizontal light deflection 90 being spent, thereby improve light efficiency greatly; Improve the illumination of vertical light; That is to say that the light that projects the field of illumination is vertical light basically, do not have horizontal light, also just do not have dazzle; On the one hand, the present invention also is provided with the sheen lens outside super polaroid in addition, to further homogenizing of projection light and softening, effectively protects human eye healthy; Even human eye is directly seen light source, can not produce dazzle yet.
For solving the problems of the technologies described above, the technical scheme that the present invention adopted is: a kind of anti-dazzle light fixture of the LED of employing planar light source comprises LED planar light source and the housing of being located at a side opening at its back side; Said LED planar light source is fixedly arranged in the housing and the corresponding setting with the shell nozzle direction of its light-emitting area; Its key improvements is: said housing oral area also is provided with the sheen lens parallel with said LED planar light source; Said sheen lens inboard also is covered with super polaroid; Said LED planar light source comprises led chip, is used for substrate, framework, encapsulating material and the drive circuit board of packaging LED chips; Said framework is fixedly arranged on said substrate and is used for the encapsulating face of packaging LED chips and forms the cavity of a upper shed with said encapsulating face; Said led chip utilizes encapsulating material to be packaged in said substrate to be positioned on the encapsulating face of said cavity and rectangular array distribution; The link of said drive circuit board links to each other with pin on being fixedly arranged on said substrate.
Power input on the said drive circuit board is provided with soft starting circuit.
Said encapsulating material is epoxy resin and phosphor mixture, and the colour temperature of said fluorescent material is 6500K, and colour temperature can control as required, makes it reach the effect of human eye the most comfortable.
The general power of said led chip is 10W-60W, and the general power of chip can be controlled according to illumination requirement.
Adopt the beneficial effect that technique scheme produced to be: after being arranged on the substrate according to the mode of rectangular array is concentrated led chip; The whole encapsulating material that uses is encapsulated in led chip on the substrate, fundamentally eliminates the phenomenon that is formed hot spot, the ring of light and light and shade striped by the integrated lighting source of spot light in the field of illumination; The present invention is also through throwing the side setting sheen lens parallel with planar light source at planar light source; On sheen lens medial surface, be provided with super polaroid; Super polaroid adopts special material to process; With can generation the horizon light of horizontal dazzle convert vertical light to and project the field of illumination, thoroughly elimination of level dazzle can also improve light efficiency; And the light that the sheen lens can further be sent the LED planar light source carries out homogenizing and softening, effectively protects human eye healthy.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a LED planar light source front view;
Fig. 3 is a LED planar light source vertical view;
Fig. 4 is that the A-A of Fig. 3 is to view.
In the accompanying drawings: 1, housing; 2, LED planar light source; 2-1, substrate; 2-2, led chip; 2-3, encapsulating material; 2-4, framework; 2-5, pin; 2-6, drive circuit board; 3, super polaroid; 4, sheen lens.
Further the present invention is carried out detailed description below in conjunction with accompanying drawing.
The specific embodiment
A kind of anti-dazzle light fixture that adopts the LED planar light source as shown in Figure 1 comprises LED planar light source 2 and the housing 1 of being located at a side opening at its back side; Said LED planar light source is fixedly arranged in the housing 1 and its light-emitting area and the corresponding setting of housing 1 opening direction; Its key improvements is: said housing 1 oral area also is provided with the sheen lens 4 parallel with said LED planar light source; Said sheen lens 4 inboards also are covered with super polaroid 3; Said LED planar light source 2 (shown in Fig. 2-4) comprises led chip 2-2, is used for substrate 2-1, framework 2-4, encapsulating material 2-3 and the drive circuit board 2-6 of packaging LED chips 2-2; Said framework 2-4 is fixedly arranged on said substrate 2-1 and is used for the encapsulating face of packaging LED chips 2-2 and forms the cavity of a upper shed with said encapsulating face; Said led chip 2-2 utilizes encapsulating material to be packaged in said substrate 2-1 to be positioned on the encapsulating face of said cavity and rectangular array distribution; The link of said drive circuit board 2-6 links to each other with pin 2-5 on being fixedly arranged on said substrate 2-1.
Power input on the said drive circuit board 2-6 is provided with soft starting circuit.
Said encapsulating material is epoxy resin and phosphor mixture, and the colour temperature of said fluorescent material is 6500K, and colour temperature can control as required, makes it reach the effect of human eye the most comfortable.
The general power of said led chip is 10W-60W, and the general power of chip can be controlled according to illumination requirement.
The LED planar light source that adopts among the present invention be not on the common meaning with the integrated area source of LED spot light; But earlier led chip is arranged in the existing unified planar light source that uses encapsulating material to be packaged into an integral body on the substrate according to the mode of rectangular array, effectively avoid the use of the integrated light source of LED spot light in use produces hot spot, the ring of light or light and shade striped in the projected area because of the interference of light between the LED spot light phenomenon; In LED planar light source light-emitting area one side super polaroid in parallel is set, common polaroid is a kind of mature technique that is applied on the LCD TV, and it can allow a kind of light transmission of direction; And stop the light transmission of other directions; The only omnidirectional light that the LED planar light source is sent also can be decomposed into directional light and vertical light, and the directional light that it sent not only can not illuminate the field of illumination; But also can produce horizontal dazzle; The harm human eye is healthy, and horizon light can not project the field of illumination, the light efficiency of reduction planar light source; If adopt common polaroid that the light that the LED planar light source is sent is filtered, just make its vertical light see through, and horizon light filter, produce dazzle though can prevent horizon light, horizon light can not shine directly into the field of illumination, reduces light efficiency; In the present invention through to the improvement of polaroid material, can make horizon light shine super polaroid and at first revolve later on to turn 90 degrees and become vertical light, see through from super polaroid then, avoid light loss, effectively improve light efficiency and illumination; Hull shape in the light fixture involved in the present invention can be adjusted according to actual conditions, can be spherical shell, also can be cuboid, generally adopt heat conduction preferably material process, can also on its lateral surface, fin be set.
Power input on the said drive circuit board is provided with soft starting circuit; The led drive circuit of printing on the circuit board is identical with existing common area source drive circuit; Its difference is wherein also to have additional soft starting circuit; The moving circuit of floppy drive is located at the power input of drive circuit, and the electric capacity in start-up course in the soft starting circuit is in charged state, so increase gradually along with the charging process of electric capacity through the electric current of soft starting circuit; This electric capacity begins discharge in powered-down; Make led chip extinguish and become a process of deepening gradually, prevent that effectively prominent bright dashing forward secretly caused certain stimulation to human eye in the opening and closing process, also be easy to generate the contrast dazzle.
Said encapsulating material is that epoxy resin and fluorescent material evenly mix, and the colour temperature of fluorescent material wherein is 6500K, and colour temperature can be controlled as required; Make it reach the effect of human eye the most comfortable; To be blue light that led chip is sent mix through the light that is sent with fluorescent material the principle that led light source produces white light, so the luminous color of led light source is that the proportioning by fluorescent material determines; Need to produce the light of what color; Only need allotment fluorescent material proportioning to get final product, the colour temperature of light that existing white LED light source sends is lower, can not reach the white colour temperature district of daylight; The present invention guarantees that through the proportioning between the adjustment fluorescent material three primary colours colour temperature of light that light source sends remains on about 6500K; Be the most adaptable color temperature regions of human eye, can also eliminate infrared light and ultraviolet light, and colour rendering also is best certain harm is arranged.
The general power of said led chip can be arranged to 10W-60W, effectively improves the illumination of planar light source, avoids the phenomenon of human eye easy fatigue in the not enough environment of illumination to produce, and the general power of chip can be controlled according to illumination requirement.
In concrete application process; After being arranged on the substrate according to the mode of rectangular array is concentrated led chip; The whole encapsulating material that uses is encapsulated in led chip on the substrate, fundamentally eliminates the phenomenon that is formed hot spot, the ring of light and light and shade striped by the integrated lighting source of spot light in the field of illumination; The present invention is also through throwing the side setting sheen lens parallel with planar light source at planar light source; On sheen lens medial surface, be provided with super polaroid; Super polaroid adopts special material to process; With can generation the horizon light of horizontal dazzle convert vertical light to and project the field of illumination, thoroughly elimination of level dazzle can also improve light efficiency; And the light that the sheen lens can further be sent the LED planar light source carries out homogenizing and softening, effectively protects human eye healthy.
Claims (4)
1. anti-dazzle light fixture that adopts the LED planar light source comprises LED planar light source (2) and is located at the housing (1) of a side opening at its back side; Said LED planar light source is fixedly arranged in the housing (1) and its light-emitting area and the corresponding setting of housing (1) opening direction; It is characterized in that: said housing (1) oral area also is provided with the sheen lens (4) parallel with said LED planar light source; Said sheen lens (4) inboard also is covered with super polaroid (3); Said LED planar light source (2) comprises led chip (2-2), is used for the substrate (2-1) of packaging LED chips (2-2), framework (2-4), encapsulating material (2-3) and drive circuit board (2-6); Said framework (2-4) is fixedly arranged on said substrate (2-1) and is used for the encapsulating face of packaging LED chips (2-2) and forms the cavity of a upper shed with said encapsulating face; Said led chip (2-2) utilizes encapsulating material to be packaged in said substrate (2-1) to be positioned on the encapsulating face of said cavity and rectangular array distribution; The link of said drive circuit board (2-6) links to each other with pin (2-5) on being fixedly arranged on said substrate (2-1).
2. a kind of anti-dazzle light fixture that adopts the LED planar light source according to claim 1, it is characterized in that: the power input on the said drive circuit board (2-6) is provided with soft starting circuit.
3. a kind of anti-dazzle light fixture that adopts the LED planar light source according to claim 2, it is characterized in that: said encapsulating material is epoxy resin and phosphor mixture, the colour temperature of said fluorescent material is 6500K.
4. a kind of anti-dazzle light fixture that adopts the LED planar light source according to claim 3, it is characterized in that: the general power of said led chip is 10W-60W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110144846A CN102305357A (en) | 2011-06-01 | 2011-06-01 | Anti-dazzle light fitting with adoption of flat LED (Light-Emitting Diode) light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110144846A CN102305357A (en) | 2011-06-01 | 2011-06-01 | Anti-dazzle light fitting with adoption of flat LED (Light-Emitting Diode) light source |
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| CN102305357A true CN102305357A (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110144846A Pending CN102305357A (en) | 2011-06-01 | 2011-06-01 | Anti-dazzle light fitting with adoption of flat LED (Light-Emitting Diode) light source |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700326A (en) * | 2014-01-09 | 2014-04-02 | 郑州中原显示技术有限公司 | Polarizing LED (Light-Emitting Diode) display screen based on polarizing film and method for forming polarizing film |
| CN105864668A (en) * | 2016-04-18 | 2016-08-17 | 黄恒源 | Illumination warning accessory |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201017139Y (en) * | 2006-08-21 | 2008-02-06 | 长兴化学工业股份有限公司 | Backlight component |
| CN201215265Y (en) * | 2008-06-06 | 2009-04-01 | 哈尔滨市电子计算技术研究所 | Non-horizontal irradiation anti-dazzle LED tunnel lamp |
| CN101769454A (en) * | 2009-10-12 | 2010-07-07 | 海洋王照明科技股份有限公司 | Antiglare LED illumination system |
| CN102011957A (en) * | 2009-09-03 | 2011-04-13 | 夏普株式会社 | Backlight and display |
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2011
- 2011-06-01 CN CN201110144846A patent/CN102305357A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201017139Y (en) * | 2006-08-21 | 2008-02-06 | 长兴化学工业股份有限公司 | Backlight component |
| CN201215265Y (en) * | 2008-06-06 | 2009-04-01 | 哈尔滨市电子计算技术研究所 | Non-horizontal irradiation anti-dazzle LED tunnel lamp |
| CN102011957A (en) * | 2009-09-03 | 2011-04-13 | 夏普株式会社 | Backlight and display |
| CN101769454A (en) * | 2009-10-12 | 2010-07-07 | 海洋王照明科技股份有限公司 | Antiglare LED illumination system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103700326A (en) * | 2014-01-09 | 2014-04-02 | 郑州中原显示技术有限公司 | Polarizing LED (Light-Emitting Diode) display screen based on polarizing film and method for forming polarizing film |
| CN103700326B (en) * | 2014-01-09 | 2016-02-17 | 郑州中原显示技术有限公司 | Based on the polarization-type LED display of polarizing coating and the forming method of polarizing coating |
| CN105864668A (en) * | 2016-04-18 | 2016-08-17 | 黄恒源 | Illumination warning accessory |
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Application publication date: 20120104 |