CN208832377U - Anti-dazzle thin microstructured optical films/plate and LED light device - Google Patents
Anti-dazzle thin microstructured optical films/plate and LED light device Download PDFInfo
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- CN208832377U CN208832377U CN201821792409.1U CN201821792409U CN208832377U CN 208832377 U CN208832377 U CN 208832377U CN 201821792409 U CN201821792409 U CN 201821792409U CN 208832377 U CN208832377 U CN 208832377U
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Abstract
The utility model provides a kind of anti-dazzle thin microstructured optical films/plate and LED light device.LED light device, including shell, printed circuit board in the shell is set, at least one LED chip on a printed circuit is set, the LED drive power being electrically connected at least one described LED chip, and the cover by LED chip envelope in the shell, it is characterized in that, it further include optical thin film/plate that the outer surface of the cover is set, the one side of the optical thin film/plate has the conical protrusions portion of periodic arrangement, the corner angle in the conical protrusions portion is 85 ° -95 °, cycle length is 0.1 millimeter -3 millimeters, the another side of the optical thin film/plate is equipped with light diffusing sheet.The utility model can the concentration optics output to LED light source be adjusted, thus the case where effectively improving dazzle while meeting illumination light distribution.
Description
Technical field
The utility model belongs to field of LED illumination more particularly to a kind of anti-dazzle thin microstructured optical films/plate and tool
There is optical thin film/plate LED light device.
Background technique
Semiconductor photo diode, as a kind of energy-saving and environment-friendly new type light source, comprising Organic Light Emitting Diode (OLED,
Light Emitting Diode) and inorganic light-emitting diode (LED, Light Emitting Diode), more and more widely
Applied to general illumination environment.LED is applied in existing illumination, brightness, efficiency, service life, color needed for having general lighting
Temperature and white point stability.Therefore, this kind of LED, including road surface, parking area are all used in most general lighting application designs
And indoor directional lighting.In such applications, due to Maintenance free (service life of LED is more much longer than conventional bulb)
And low energy consumption, so LED based lighting device reduces the total cost of ownership (TCO).Illumination level LED has at least 50,000
Efficient, the directional lighting of hour.It is more than all incandescent lamps and halogen using lighting system effect that the advantages of illumination level LED is designed
Plain lamps and lanterns, service life extend 5 to 50 times, reduce the influence to environment, not mercurous, power station pollution is small, garbage disposal expense is low.
To, LED light device is just being more and more widely used do not particularly point out herein in the case where, it is preceding to address aftermentioned " LED
Lighting device " includes the lighting device with inorganic light-emitting diode LED and the illumination with Organic Light Emitting Diode OLED
Device).
In order to adapt to the different lighting demands of various environment, need to utilize secondary or multiple optics in LED light device
Control device changes the output of its optics to meet the lighting demand of different application scene.For example, street lamp since lamp stand spacing is big and
Optical lens or optical reflector are designed using large angle illumination, market illumination because to show commodity especially and to optical lens or
Optical reflector uses low-angle Lighting Design, and working environment is due to needing soft uniform light distribution and to optical lens or light
Reflector is learned using droplet-shaped illumination optical design etc..I.e. different illumination optical environment needs to design optics control of different shapes
Device processed.Secondary or multiple optical control device is usually various optical lenses and optical reflector etc..As shown in Figure 1
Printed circuit board 3 is arranged in shell 1, at least one LED chip 2, secondary optics are arranged on printed circuit board 3 for LED light device
Control device is optical lens 10, is located at 2 top of LED chip, and LED chip is enclosed in shell 1 by the cover 4.
In addition, in order to adapt to different LED light sources (i.e. it is variant that LED particle size, encapsulation and LED go out light characteristic),
Need to separately design various sizes of optical lens or optical reflector also to match with corresponding LED light source.Therefore, work as LED
Light source generate variation after, can not be continued to use for the secondary or multiple optical control device of a certain LED design, it is secondary or
The poor universality of the multiple optical control device of person needs to redesign and manufacture secondary or multiple optical control device, thus
The cost for substantially increasing LED light device limits the extensive use of LED.
Further, since the optics output that LED light source is concentrated causes the surface brightness of LED light device very high, eyes exist
When encountering light or very dark bias light strongly in the visual field, visibility can be caused to reduce, so that being difficult to see object clearly, also
Eyes can be caused to shed tears, pain or even blepharospasm etc., optically, we measure indoor view using type unified glare value UGR
Feel that the light of the lighting device sending in environment causes the parameter at heart of discomfort subjective response to human eye, magnitude passes through CIE
Type unified glare value formula is calculated:
Wherein, LbFor the brightness of background in the visual field, L is the brightness of lamps and lanterns in the visual field, and ω and ρ are that lamps and lanterns light enters respectively
The angle of eyes and coefficient relevant to lamps and lanterns arrangement position.As can be seen that UGR is because of " within sweep of the eye " lamp from formula
Have, i.e. L/L strong with the comparison of backgroundbBigger, the visual experience of people will be more uncomfortable.Usual UGR is with 3 ranks, sense
The upper corresponding relationship of official such as table 1.
Table 1
UGR has apparent effect for the psychology of people as can be seen from the above table, affects the mood of people, this shadow
Sound constrains the extensive use of LED.
Therefore, it needs a kind of to can adapt in different LED light sources and the lighting demand of different application scene and can overcome
The LED light device of glare problem.
Utility model content
Based on this, in view of the above technical problems, a kind of anti-dazzle thin microstructured optical films/plate and LED illumination dress are provided
It sets.
In order to solve the above technical problems, the utility model adopts the following technical solution:
The one side of a kind of anti-dazzle thin microstructured optical films/plate, the optical thin film/plate has periodic arrangement
Conical protrusions portion, the corner angle in the conical protrusions portion are 85 ° -95 °, and cycle length is 0.1 millimeter -3 millimeters, the light
It learns film/plate another side and is equipped with light diffusing sheet.
Preferably, the corner angle in the conical protrusions portion is 88 ° -92 °, and cycle length is 1.5 millimeters -2.5 millimeters.
Preferably, the basal diameter in the conical protrusions portion is 0.1 millimeter -3 millimeters.
Preferably, the basal diameter in the conical protrusions portion is 1.5 millimeters -2.5 millimeters.
Preferably, the optical thin film/plate with a thickness of 0.1 millimeter -3 millimeters.
Preferably, the material of the optical thin film/plate includes PET, PC, PMMA, PS, PP, PMS, PEI and wherein appoints
It anticipates two or more compound mixing material.
Preferably, the cycle length is adjacent conic convex portion on the basal diameter and orientation in conical protrusions portion
Between the sum of spacing.
The utility model further relates to a kind of LED light device, has anti-dazzle thin microstructured optical films/plate.
Printed circuit board in the shell is arranged in the utility model LED light device, including shell, and setting is in printing electricity
At least one LED chip on the plate of road, the LED drive power being electrically connected at least one described LED chip, and by LED core
The outer surface of the cover is arranged in the cover of piece envelope in the shell, the optical thin film/plate.
The utility model LED light device further includes being attached at a part of the printed circuit board and/or the shell
On reflective optical films/plate.
Anti-dazzle thin microstructured optical films/the plate of the utility model can concentration optics to LED light source export and carry out
It adjusts, so that having anti-dazzle thin microstructured optical films/plate LED light device that can illuminate light distribution meeting
While the case where effectively improving dazzle.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing LED light device；
Fig. 2 is the structural schematic diagram of the LED light device of preferred embodiment according to the present utility model, wherein (a) is straight
Following formula, it is (b) illuminated for side；
Fig. 3 is optical thin film/plate schematic diagram of the utility model；
Fig. 4 is the optics output of optical thin film/plate 5 in the utility model with periodic arrangement conical protrusions portion
Distribution schematic diagram；
Optical thin film/plate cooperation light diffusing sheet optics in Fig. 5 the utility model exports distribution schematic diagram.
Specific embodiment
In conjunction with following specific embodiments and attached drawing, the utility model is described in further detail.
In Fig. 2,1 expression shell, 2 expression LED chips, 3 expression printed circuit boards, 4 expression the covers, 5 expression optical thin films/
Plate, 6 indicate conical protrusions portion, and 7 indicate reflective optical films/plate, and 8 indicate light guide plate, and 9 indicate light diffusing sheet.
As shown in Fig. 2, the present embodiment LED light device includes shell 1, the printed circuit board 3 in shell 1 is set, if
Set at least one LED chip 2 on printed circuit board 3, the LED drive power being electrically connected at least one LED chip 2 (figure
Do not show), and LED chip 2 is enclosed in the cover 4 in shell 1, the outer surface of the cover 4 is arranged in optical thin film/plate 5, with control
The optics output of LED chip 2 processed reaches the lighting requirement of specific application scene.Lighting device is different according to light source position, can divide
It is illuminated for straight-down negative and side.In Fig. 2, (a) is straight-down negative, i.e. chip 2 is located on the PCB3 of 1 bottom of shell；(b) it shines for side
Formula, i.e. chip 2 are located at the side of shell 1.
Specifically, shell 1 is high heat dissipation die casting aluminium material, die casting or extrusion molding, has good heat dissipation performance.Printing
The quantity for the LED chip 2 being arranged on circuit board 3 can be one or more.LED chip 2 can be high-power, middle power or small
Power patch chip, and can be in parallel or go here and there and the mode patch that combines is on printed circuit board 3 using series connection.Printing
Circuit board 3 is matched with direct current driving power supply, and driving LED chip 2, which shines, reaches illuminating effect.
Wherein, as shown in figure 3, the one side of optical thin film/plate 5 has the conical protrusions portion 6 of periodic arrangement, the circle
The corner angle in tapered protrusion portion 6 is 85 ° -95 °, and cycle length is 0.1 millimeter -3 millimeters, 6 basal diameter of conical protrusions portion
It is 0.1 millimeter -3 millimeters.Preferably, corner angle is 88 ° -92 °, and cycle length is 1.5 millimeters -2.5 millimeters, conical protrusions
6 basal diameter of portion is 1.5 millimeters -2.5 millimeters.The another side of the optical thin film/plate 5 of the utility model is equipped with light diffusing sheet 9,
Optical thin film/the plate 5 in the conical protrusions portion 6 with periodic arrangement can control wide-angle light beam well on one side, make
Dazzle value is obtained to substantially reduce.
The apex angle in above-mentioned conical protrusions portion 6 refers to the triangle that a diameter of conical tip and its rounded bottom surface is unified into
Apex angle；The basal diameter and the adjacent conical protrusions portion 6 along orientation that above-mentioned cycle length refers to conical protrusions portion 6
Between the sum of bottom surface spacing.Here, spacing can be zero, can also be negative because bottom surface is overlapped.
Fig. 4 is that the optics of optical thin film/plate 5 in the utility model with periodic arrangement conical protrusions portion 6 is defeated
Distribution schematic diagram out, Fig. 5 are that optical thin film/plate 5 in the utility model cooperates the optics output distribution of light diffusing sheet 8 to illustrate
Scheme, the darker curve in figure is the surface of intensity distribution of 0-180 degree section in space, and lighter curve is 90-270 degree section in space
The surface of intensity distribution, annulus be isocandela be distributed annulus, luminous intensity unit is candela (cd), across annulus ray be angularly
Line, the unit degree of being (degree) of angle, 0 degree is lamps and lanterns following location directly, and shown in Fig. 4, the UGR value of the lamps and lanterns reaches
17, high angle scattered light is not had and is entered in the sight of people, and the selection of above-mentioned period and apex angle is other than reducing dazzle value, moreover it is possible to
Meets the needs of batch production, shown in Fig. 5, after cooperating the light diffusing sheet 8, dazzle value reaches 16, and light is soft, will not make lamp
Light is to artificial at sense of discomfort.
The utility model optical thin film/plate preferred thickness is 0.1 millimeter -3 millimeters.Preferably, with a thickness of 0.5 milli
- 1.8 millimeters of rice.The production of thin microstructured optical films and plate can be all made to process lower than this range or higher than this range
Become highly difficult.
In addition, another surface of optical thin film/plate 5 is to polish or with certain roughness.
The material of optical thin film/plate 5 can be various optically transparent plastic polymer materials, and be added additive with
Reach better material property.Plastic polymer material include PET (polyethylene terephthalate), PC (polycarbonate),
PMMA (polymethyl methacrylate), PS (polystyrene), PP (polypropylene), PMS (copolymerization styrene-methyl methacrylate)
With PEI (PolyEtherImide).Diffusion material can also be added in the material of thin microstructured optical films and plate to meet difference
Optical demands.
As shown in Fig. 2, the utility model LED light device can further include other optical reflectance coatings, reflector,
Reflectance coating and reflection chamber etc. further increase the optical efficiency of system.Such as the one of printed circuit board 3 and/or shell 1
Reflective optical films/plate 7 is attached on part.
Anti-dazzle thin microstructured optical films/the plate and LED light device of the utility model are not only adapted to LED illumination
Design, is also applied for other various light sources, such as fluorescent lamp, high-pressure sodium lamp or other similar optical application.
But those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate this
Utility model, and being not used as the restriction to the utility model, if in the spirit of the utility model, to
Variation, the modification of the upper embodiment will all be fallen in the Claims scope of the utility model.
Claims (10)
1. a kind of anti-dazzle thin microstructured optical films/plate, which is characterized in that the one side of the optical thin film/plate has week
The conical protrusions portion of phase property arrangement, the corner angle in the conical protrusions portion are 85 ° -95 °, and cycle length is 0.1 millimeter -3
The another side of millimeter, the optical thin film/plate is equipped with light diffusing sheet.
2. a kind of anti-dazzle thin microstructured optical films/plate according to claim 1, which is characterized in that the cone
The corner angle of lug boss is 88 ° -92 °, and cycle length is 1.5 millimeters -2.5 millimeters.
3. a kind of anti-dazzle thin microstructured optical films/plate according to claim 2, which is characterized in that the cone
The basal diameter of lug boss is 0.1 millimeter -3 millimeters.
4. a kind of anti-dazzle thin microstructured optical films/plate according to claim 3, which is characterized in that the cone
The basal diameter of lug boss is 1.5 millimeters -2.5 millimeters.
5. a kind of anti-dazzle thin microstructured optical films/plate according to claim 1, which is characterized in that described optically thin
Film/plate is with a thickness of 0.1 millimeter -3 millimeters.
6. a kind of anti-dazzle thin microstructured optical films/plate according to claim 1, which is characterized in that described optically thin
Film/plate material includes PET, PC, PMMA, PS, PP, PMS, PEI and wherein any the compound of two or more is mixed
Condensation material.
7. a kind of anti-dazzle thin microstructured optical films/plate according to claim 1, which is characterized in that the period is long
Degree is the sum of the spacing on the basal diameter and orientation in conical protrusions portion between adjacent conic convex portion.
8. a kind of LED light device, which is characterized in that have the described in any item anti-dazzle Microstructure Optics of claim 1-7
Film/plate.
9. a kind of LED light device according to claim 8, which is characterized in that including shell, print in the shell is arranged
At least one LED chip on a printed circuit is arranged in printed circuit board, the LED being electrically connected at least one described LED chip
The appearance of the cover is arranged in driving power, and the cover by LED chip envelope in the shell, the optical thin film/plate
Face.
10. a kind of LED light device according to claim 9, which is characterized in that further include being attached at the printed circuit
Reflective optical films/plate in a part of plate and/or the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821792409.1U CN208832377U (en) | 2018-11-01 | 2018-11-01 | Anti-dazzle thin microstructured optical films/plate and LED light device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821792409.1U CN208832377U (en) | 2018-11-01 | 2018-11-01 | Anti-dazzle thin microstructured optical films/plate and LED light device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208832377U true CN208832377U (en) | 2019-05-07 |
Family
ID=66318945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821792409.1U Active CN208832377U (en) | 2018-11-01 | 2018-11-01 | Anti-dazzle thin microstructured optical films/plate and LED light device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208832377U (en) |
-
2018
- 2018-11-01 CN CN201821792409.1U patent/CN208832377U/en active Active
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