CN203223862U - LED (light-emitting diode) illuminating device with microstructural optical film - Google Patents

LED (light-emitting diode) illuminating device with microstructural optical film Download PDF

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Publication number
CN203223862U
CN203223862U CN 201320176255 CN201320176255U CN203223862U CN 203223862 U CN203223862 U CN 203223862U CN 201320176255 CN201320176255 CN 201320176255 CN 201320176255 U CN201320176255 U CN 201320176255U CN 203223862 U CN203223862 U CN 203223862U
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led
optical films
microstructured optical
thin microstructured
led lighting
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CN 201320176255
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甘雨洁
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China (Shanghai) Optoelectronics Technology Co., Ltd.
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China Blue Photoelectric Technology (shanghai) Co Ltd
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Abstract

The utility model provides an LED (light-emitting diode) illuminating device with a microstructural optical film. The device comprises a shell (1), a printed circuit board (3), at least one LED chip (2), an LED driving power supply and a cover cap (4), wherein the printed circuit board (3) is arranged in the shell (1); the LED chip (2) is arranged on the printed circuit board (3); the LED driving power supply is electrically connected with the LED chip (2); and the cover cap (4) packages the LED chip in the shell (1). The device is characterized by also comprising the microstructural optical film (5) arranged on the upper surface of the cover cap (4), wherein the microstructural optical film (5) controls the optical output of an LED power supply to meet the illumination requirement of a specific application scene. Integrated optical output of the LED power supply is adjusted by using the microstructural optical film, so that glare is effectively improved while the requirement on the distribution of illumination light is met.

Description

LED lighting device with thin microstructured optical films
Technical field
The utility model relates to the LED lighting device, relates in particular to the LED lighting device with thin microstructured optical films.
Background technology
Semiconductor photo diode (LED, Light Emitting Diode) as a kind of new type light source of energy-conserving and environment-protective, is applied to the general illumination environment more and more widely.LED is used in existing illumination, has the required brightness of general lighting, efficient, service life, colour temperature and white point stability.Therefore, most general lightings are used in the design and are all adopted this class LED, comprise road surface, parking area and indoor directional lighting.In these are used, because Maintenance free (service life of LED is more much longer than the conventional bulb) and energy consumption are low, so LED-based lighting device has reduced the total cost of ownership (TCO).Illumination level LED has at least 50,000 hour efficient, directional lighting.Utilize the illuminator effect of the advantage design of illumination level LED to surpass all incandescent lamps and halogenic lamps and lanterns, the life-span has prolonged 5 to 50 times, has reduced the influence to environment, and that pollute in not mercurous, power station is little, the garbage disposal expense is low.Thereby the LED lighting device just is being subjected to application more and more widely.
In order to adapt to all-environment different lighting demand, need in the LED lighting device to utilize secondary or repeatedly optical controller spare change the lighting demand that its optics exports to satisfy the different application scene.For example, street lamp adopts wide-angle illumination design because the lamp stand spacing is big to optical lens or optical reflector, the market illumination is adopted low-angle illumination design because will show commodity especially to optical lens or optical reflector, and working environment adopts droplet-shaped illumination optical design etc. owing to need soft uniform light to distribute to optical lens or optical reflector.That is, different illumination optical environment need design difform optical controller spare.Secondary or the repeatedly normally various optical lenses of optical controller spare and optical reflector etc.LED lighting device as shown in Figure 1 arranges printed circuit board (PCB) 3 in the shell 1, at least one led chip 2 is set on the printed circuit board (PCB) 3, and the secondary optics control device is optical lens 10, is positioned at led chip 2 tops, and cover cap 4 is enclosed in led chip in the shell 1.
In addition, in order to adapt to different led light source (be the LED granular size, to go out light characteristic all variant for encapsulation and LED), also need to design respectively the optical lens of different size or optical reflector to mate with corresponding led light source.Therefore, after led light source changes, at the secondary of a certain LED design or repeatedly optical controller spare can't continue to use, secondary the or repeatedly versatility of optical controller spare is poor, need redesign and make secondary or optical controller spare repeatedly, thereby improved the cost of LED lighting device greatly, limited the extensive use of LED.
In addition, because the optics that led light source is concentrated output causes the surface brightness of LED lighting device very high, make the user feel very dazzling, dazzle is very strong, and this has also restricted the extensive use of LED.
Therefore, need a kind of LED lighting device that can be adapted to the lighting demand of different LED light source and different application scene and can overcome glare problem badly.
The utility model content
The utility model purpose is to provide a kind of LED lighting device with thin microstructured optical films, it comprises: shell, be arranged on the printed circuit board (PCB) in the shell, be arranged at least one led chip on the printed circuit board (PCB), the LED driving power that is electrically connected with described at least one led chip, and led chip is enclosed in cover cap in the shell, described LED lighting device also comprises the thin microstructured optical films of the upper surface that is arranged on described cover cap, and described thin microstructured optical films is controlled the optics of described led light source and exported the lighting requirement that reaches the application-specific scene.
According to the LED lighting device with thin microstructured optical films of the present utility model, the one side of wherein said thin microstructured optical films has the lug boss of periodic arrangement, the shape of described lug boss comprises hemispherical, semielliptical shape, pyrometric cone, halfpace, and by in the aforementioned shapes both or both more than the compound shape that constitutes, thereby the illuminating effect that can realize ideal according to the optics output of actual illumination demand control led light source.By changing or adjust combination or the arrangement mode of the lug boss of thin microstructured optical films, can further obtain the application scenarios of multiple satisfied different lighting demands.
The utlity model has in the LED lighting device of thin microstructured optical films, the proportion of the height and the width of lug boss is 0.1-5.
The utlity model has in the LED lighting device of thin microstructured optical films, the Cycle Length of the lug boss of periodic arrangement is 1 micron-5 millimeters.
The utlity model has in the LED lighting device of thin microstructured optical films, the height of lug boss is 1 micron-5 millimeters.
The utlity model has in the LED lighting device of thin microstructured optical films, the thickness of thin microstructured optical films is 10 microns-5 millimeters.
The utlity model has in the LED lighting device of thin microstructured optical films, another surface of thin microstructured optical films is for polishing or have certain roughness.
The utlity model has the LED lighting device of thin microstructured optical films, also comprise the anacamptics film on the part that is attached at printed circuit board (PCB) and/or shell.
In the LED lighting device with thin microstructured optical films that the utility model proposes, utilize thin microstructured optical films that the concentrated optics output of led light source is regulated, thereby improved the situation of dazzle in the photodistributed while of satisfied illumination effectively.
Description of drawings
Fig. 1 is the structural representation of existing LED lighting device;
Fig. 2 is the structural representation according to the LED lighting device with thin microstructured optical films of the utility model one embodiment;
Fig. 3 is the stereogram of hemispherical optical microstructures;
Fig. 4 is the stereogram of semielliptical shape optical microstructures;
Fig. 5 is the stereogram of triangular pyramidal optical microstructures;
Fig. 6 is the stereogram of trapezoidal shape optical microstructures;
Fig. 7 is the schematic diagram of spherical thin microstructured optical films;
Fig. 8 is the schematic diagram of taper microstructure optical thin film;
Fig. 9 is the schematic diagram of halfpace thin microstructured optical films;
Figure 10 is the front view of compound shape thin microstructured optical films;
Figure 11 is the right view of compound shape thin microstructured optical films;
Figure 12 is the stereogram of compound shape thin microstructured optical films.
Figure 13 is a kind of optics output distribution schematic diagram of single shape thin microstructured optical films; And
Figure 14 is a kind of optics output distribution schematic diagram of compound shape thin microstructured optical films.
The specific embodiment
In conjunction with following specific embodiments and the drawings, the utility model is described in further detail.
Among Fig. 2,1 expression shell, 2 expression led chips, 3 expression printed circuit board (PCB)s, 4 expression cover caps, 5 expression thin microstructured optical films, 6 expression lug bosses, 7 expression anacamptics films.
As shown in Figure 2, the LED lighting device that the utlity model has thin microstructured optical films comprises: shell 1, be arranged on the printed circuit board (PCB) (PCB) 3 in the shell 1, be arranged at least one led chip 2 on the printed circuit board (PCB) 3, be electrically connected the LED driving power (not shown) with the driving LED chip light emitting with led chip 2, and the cover cap 4 and the thin microstructured optical films 5 that are arranged on the led chip top, export the lighting requirement that reaches the application-specific scene with the optics of control led chip 2.
Particularly, shell 1 is high heat radiation die casting aluminium material, and die casting or extrusion molding possess good performance of heat dissipation.The quantity of the led chip 2 that arranges on the pcb board can be for one or more.Led chip 2 can be high-power, middle power or small-power paster chip, and can adopt series connection, and the mode paster of parallel connection or string and combination is on printed circuit board (PCB) 3.Printed circuit board (PCB) 3 matches with the DC driven power supply, and the driving LED chip light emitting reaches illuminating effect.
Thin microstructured optical films 5 lug boss 6 that the surface has periodic arrangement in the utility model, the Cycle Length of lug boss 6 are 1 micron-5 millimeters.The different shape of lug boss 6 comprises hemispherical shown in Fig. 3-6, semielliptical shape, triangular pyramidal, halfpace etc.For example, Fig. 7 is the schematic diagram of spherical thin microstructured optical films; Fig. 8 is the schematic diagram of taper microstructure optical thin film; Fig. 9 is the schematic diagram of halfpace thin microstructured optical films.Another surface of microstructure film 5 is for polishing or have certain roughness.
Here Fig. 3-6 part preferred embodiments that lug boss is shown, the shape of lug boss 6 can also be two or more the compound shapes that has aforementioned shapes concurrently.For example, Figure 10-12 is the schematic diagram of compound shape thin microstructured optical films.Figure 10 is the front view of this compound shape thin microstructured optical films; Figure 11 is the right view of this compound shape optical thin film; Figure 12 is the part stereogram (row's lug boss only is shown) of this compound shape thin microstructured optical films.This compound shape is that the triangle side of pyrometric cone is cut sth. askew, and makes its rectangle sides form trapezoidal and constitutes.Compound shape can produce asymmetrical optical profile, to be used for more illumination application scenarios.In addition, compound shape for example can also be that the shape of similar halfpace is formed on hemispherical or the semielliptical shape top of pruning.The shape that those skilled in the art will appreciate that lug boss 6 can comprise other analogous shape that can realize the utility model purpose.
The preferable thickness of thin microstructured optical films 5 of the present utility model is 10 microns-5 millimeters.Preferably, thickness is 50 microns-2 millimeters; Further preferably, thickness is 100 microns-0.5 millimeter.Being lower than this scope or being higher than this scope all to make the making processing of thin microstructured optical films become very difficult.
The lug boss 6 preferable height of the periodic arrangement of this thin microstructured optical films 5 are 1 micron-5 millimeters.Outside this scope to add trade union very difficult, can't large-scale production.
The scope of the ratio of the height and the width of the lug boss 6 of thin microstructured optical films 5 is 0.1-5.Do not reach good optics control output outside this scope.
Particularly, at identical led light source, the shape by changing or adjust the lug boss 6 of thin microstructured optical films 5, size (highly, thickness etc.), repetition period and the compound mode of arranging can make lighting device satisfy different lighting demands.For example, spherical and pyrometric cone lug boss is fit to office lighting and commercial lighting, and the compound shape lug boss is fit to the plaza lighting of directional lighting.Like this, by attached different thin microstructured optical films on the cover cap 4 of LED lighting device, just can satisfy different lighting demands, and no longer need to design traditional secondary or optical controller spare repeatedly, reduced the optical element of LED lighting device inside, make the volume of LED lighting device more small-sized, compact, reduced the cost of LED lighting device simultaneously.In addition, when led chip itself changes, when for example shape, size etc. change, no longer need to redesign secondary or optical controller spare repeatedly as prior art, microstructure film originally can be suitable for equally.Therefore, lighting device of the present utility model has improved the versatility of optics, has widened the range of application of LED and has reduced the cost of LED lighting device.
Figure 13 and and Figure 14 be the example of two Microstructure Optics design.Wherein Figure 13 is a kind of optics output distribution schematic diagram of single shape thin microstructured optical films; Figure 14 is a kind of optics output distribution schematic diagram of compound shape thin microstructured optical films.The solid line at the square dot place in the figure is the surface of intensity distribution of 0-180 degree section in the space, and the solid line at circular some place is the surface of intensity distribution of 90-270 degree section in the space.Annulus is isocandela distribution annulus, and luminous intensity unit is candela (cd).The ray that passes annulus is the equal angles line, the unit degree of being (degree) of angle.0 degree is the position under the light fixture.
Particularly, among Figure 13, the lug boss of its thin microstructured optical films adopts the pyrometric cone of periodic arrangement, and the length of periodic arrangement is 10 microns to 50 microns.Here the length of the periodic arrangement of indication (being Cycle Length) expression lug boss along the spacing between the length of orientation and two the adjacent protrusion portions with.Shown in the optics output distribution schematic diagram of Figure 13, this optical profile is fit to be applied in scenes such as office, supermarket, market, and light is soft, and illuminance of ground is very even.
Particularly, among Figure 14, the lug boss of its micro-structural adopts the compound shape lug boss of periodic arrangement, and namely this lug boss is the compound shape that has pyrometric cone and two kinds of shapes of halfpace concurrently (for example shown in Figure 7 compound shape).The length of periodic arrangement is 5 microns to 20 microns, and this compound shape can produce asymmetrical optical effect, can reach the effect of better directional lighting.Shown in the optics output distribution schematic diagram of Figure 14, this smooth shape is fit to be applied in building brightening, and plaza lighting etc. need the application scenarios of directional lighting, and luminous energy more projects working face, the usage factor height.
In the utility model, the material of thin microstructured optical films can be various optically transparent plastic polymer materials, and adds additive to reach the better material characteristic.The plastic polymer material comprises PET (PET), PC (Merlon), PMMA (polymethyl methacrylate), PS (polystyrene) and PEI (the inferior acid amides of polyethers).Can also in the material of thin microstructured optical films, add diffusion material to satisfy different optical demands.
In the utility model, the LED lighting device can further include other optical reflectance coatings, reflector, reflectance coating and reflection chamber etc., further improves the optical efficiency of system.Attached anacamptics film 7 on the part of printed circuit board (PCB) 3 and/or shell 1 for example.
Thin microstructured optical films in the utility model and lighting device thereof not only are adapted to LED illumination design, also are applicable to other various light sources, as fluorescent lamp, and high-pressure mercury lamp or other similar optical application.
Protection content of the present utility model is not limited to above embodiment.Under the spirit and scope that do not deviate from the utility model design, variation and advantage that those skilled in the art can expect all are included in the utility model, and are protection domain with the appending claims.

Claims (8)

1. the LED lighting device that has thin microstructured optical films, comprise: shell (1), be arranged on the printed circuit board (PCB) (3) in the shell (1), be arranged at least one led chip (2) on the printed circuit board (PCB) (3), the LED driving power that is electrically connected with described at least one led chip (2), and led chip is enclosed in cover cap (4) in the shell (1), it is characterized in that described LED lighting device also comprises the thin microstructured optical films (5) of the upper surface that is arranged on described cover cap (4).
2. the LED lighting device with thin microstructured optical films according to claim 1, it is characterized in that, the one side of described thin microstructured optical films (5) has the lug boss (6) of periodic arrangement, the shape of described lug boss comprises hemispherical, semielliptical shape, pyrometric cone, halfpace, and the compound shape that has both or both the above shape in the aforementioned shapes concurrently.
3. the LED lighting device with thin microstructured optical films according to claim 2 is characterized in that, the proportion of the height and the width of described lug boss (6) is 0.1-5.
4. the LED lighting device with thin microstructured optical films as claimed in claim 3 is characterized in that, the Cycle Length of the lug boss of described periodic arrangement (6) is 1 micron-5 millimeters.
5. the LED lighting device with thin microstructured optical films according to claim 4 is characterized in that, the height of described lug boss (6) is 1 micron-5 millimeters.
6. the LED lighting device with thin microstructured optical films according to claim 1 is characterized in that, the thickness of described thin microstructured optical films (5) is 10 microns-5 millimeters.
7. the LED lighting device with thin microstructured optical films according to claim 1 is characterized in that, another surface of described thin microstructured optical films (5) is for polishing or have certain roughness.
8. as each described LED lighting device with thin microstructured optical films of claim 1-7, it is characterized in that, also comprise the anacamptics film (7) on the part that is attached at described printed circuit board (PCB) (3) and/or described shell (1).
CN 201320176255 2013-04-09 2013-04-09 LED (light-emitting diode) illuminating device with microstructural optical film Active CN203223862U (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103486535A (en) * 2013-10-21 2014-01-01 广州市松叶电子科技有限公司 LED (light-emitting diode) light source fluorescent powder light matching plate
CN104100852A (en) * 2013-04-09 2014-10-15 中蓝光电科技(上海)有限公司 LED illuminating device with micro-structure optical film
CN106226871A (en) * 2015-06-02 2016-12-14 雷迪埃公司 The optical-electric module of contactless free space optical link, multi-channel module, interconnection system, the method that manufactures and be connected to plate
US10012356B1 (en) 2017-11-22 2018-07-03 LightLouver LLC Light-redirecting optical daylighting system
CN108351438A (en) * 2015-09-24 2018-07-31 雷根照明设备股份公司 Optical layer and lamps and lanterns with such optical film

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104100852A (en) * 2013-04-09 2014-10-15 中蓝光电科技(上海)有限公司 LED illuminating device with micro-structure optical film
CN103486535A (en) * 2013-10-21 2014-01-01 广州市松叶电子科技有限公司 LED (light-emitting diode) light source fluorescent powder light matching plate
CN106226871A (en) * 2015-06-02 2016-12-14 雷迪埃公司 The optical-electric module of contactless free space optical link, multi-channel module, interconnection system, the method that manufactures and be connected to plate
CN106226871B (en) * 2015-06-02 2020-05-22 雷迪埃公司 Optoelectronic module, multichannel module, interconnection system, method of manufacturing and connecting to a board for a contactless free-space optical link
CN108351438A (en) * 2015-09-24 2018-07-31 雷根照明设备股份公司 Optical layer and lamps and lanterns with such optical film
US10012356B1 (en) 2017-11-22 2018-07-03 LightLouver LLC Light-redirecting optical daylighting system

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CP01 Change in the name or title of a patent holder

Address after: 200331 Shanghai, Putuo District Qilian Mountains Road, building 2889, building 3, floor 2

Patentee after: China (Shanghai) Optoelectronics Technology Co., Ltd.

Address before: 200331 Shanghai, Putuo District Qilian Mountains Road, building 2889, building 3, floor 2

Patentee before: China blue photoelectric technology (Shanghai) Co., Ltd.

C56 Change in the name or address of the patentee