CN210979717U - Frosted fringe group light source panel capable of condensing light - Google Patents
Frosted fringe group light source panel capable of condensing light Download PDFInfo
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- CN210979717U CN210979717U CN201921137720.7U CN201921137720U CN210979717U CN 210979717 U CN210979717 U CN 210979717U CN 201921137720 U CN201921137720 U CN 201921137720U CN 210979717 U CN210979717 U CN 210979717U
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Abstract
The utility model relates to a light, L ED lamps and lanterns technical field, and disclose a dull polish stripe group light source panel that can spotlight, including the light source panel, the upper and lower wall of light source panel is the plane, and the top wall of light source panel is provided with stripe group, and stripe group is including dull polish stripe group and light transmission stripe, dull polish stripe group vertically sets up the top wall at the light source panel, every group dull polish stripe group is formed by the stripe combination, and every light transmission stripe sets up between every two sets of dull polish stripe groups, and when the light source of lamps and lanterns shines the light guide plate through L ED lamp and projects the light source panel on the plane again, dull polish stripe group on the light source panel can block the light source that L ED lamp transmitted, and dull polish stripe group can transmit the light that comes L ED lamp and roll over to the light guide plate of L ED lamp, then through L ED lamp inside light guide plate on with the light source panel again for the light source is concentrated to be collected to light transmission stripe, realizes the purpose of spotlight.
Description
Technical Field
The invention relates to the technical field of illuminating lamps and L ED lamps, in particular to a frosted stripe group light source panel capable of condensing light.
Background
L ED lamp is a electroluminescent semiconductor chip, which is solidified on the support by silver glue or white glue, then the chip and the circuit board are connected by silver or gold thread, the periphery is sealed by epoxy resin, which protects the inner core wire, finally the shell is installed, so the L ED lamp has good anti-seismic performance.
In the 60's of the 20 th century, scientists developed L ED light emitting diodes by using the principle of semiconductor PN junction light emission, L ED developed at the time was GaASP which has red light emission color, and L ED which is well known after the development of nearly 30 years had been able to emit various colors of light such as red, orange, yellow, green, blue, etc., however, white light L ED required for illumination was developed only after 2000 years, and white light L ED for illumination was introduced to readers.
The heart of L ED is a semiconductor wafer with one end attached to a support, one end being the negative electrode, and the other end connected to the positive electrode of a power supply, so that the entire wafer is encapsulated by epoxy.
The light source of the conventional L ED lamp is very diffused and can not be concentrated during illumination, when the L ED lamp is placed at a distance or a high place, the light source of a person is dark due to the fact that light rays are too scattered, and if the light condensation effect of the conventional reflection cup is still not ideal, the light condensation of the light source of the L ED lamp can not be achieved with the best effect.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the frosted stripe group light source panel capable of condensing light, which has the advantages of condensing light and the like, and solves the problem that the light is too dispersed when the light source panel of the conventional L ED lamp is used for lighting.
(II) technical scheme
In order to achieve the purpose of gathering light, the invention provides the following technical scheme: the utility model provides a but light source panel of dull polish stripe group of spotlight, includes the light source panel, and the upper and lower wall of light source panel is the plane, and the top wall of light source panel is provided with the stripe, and the stripe way is including dull polish stripe group and light transmission stripe, dull polish stripe group vertically sets up the top wall at the light source panel, every group dull polish stripe group is formed by the stripe combination, and the stripe is in the same place with light source panel's top wall fixed connection, and light transmission stripe fixed mounting is in light source panel's top wall, and every light transmission stripe sets up between every two sets of dull polish stripe groups, the light source panel is formed by the preparation of thermoplasticity transparent resin.
Preferably, the thickness of the light source panel 1 is between 0.5 and 3 millimeters, the width of the frosted stripe group is between 0.5 and 30 millimeters, and the width of the light-transmitting stripe is between 0.5 and 30 millimeters.
Preferably, the light source panel is made of a thermoplastic transparent resin selected from any one of polypropylene, polyethylene, polycarbonate, polyvinyl chloride resin, ABS resin, and polymethyl acrylate.
Preferably, the light source panel is formed by hot-melt extrusion of a thermoplastic transparent resin and then hot-melt compression molding or hot-melt injection molding of the hot-melt extruded thermoplastic transparent resin.
Preferably, the light-transmitting stripes are rectangular blocks, and the length of the light-transmitting stripes is the same as that of the light source panel.
Preferably, the super mirror surface smoothness of the light transmission stripes is less than or equal to Ra0.012, and the frosting degree of the frosted stripe group is greater than or equal to Ra1.4.
(III) advantageous effects
Compared with the prior art, the invention provides a frosted fringe group light source panel capable of condensing light, which has the following beneficial effects:
1. this light source panel of frosted stripe group that can spotlight, when the light source of lamps and lanterns shines the arbitrary one side about the light source panel through L ED lamp, the light source that L ED lamp transmission was come can be blocked to frosted stripe group on the light source panel, and frosted stripe group can be with the light refraction that L ED lamp transmission was come on the light guide plate of L ED lamp, then refract the light source panel to the light source again through the inside light guide plate of L ED lamp on, make the light source concentrate to light transmission stripe and collect, make one side light transmission stripe at the light source back have more light sources to throw out, gather the light transmission stripe with the light source transmission on, realize the purpose of spotlight, the light too dispersed problem when having solved the light source panel illumination of current L ED lamp.
2. According to the light source panel of the frosted stripe group capable of condensing light, the super mirror surface of the light transmission stripe is smooth and less than or equal to Ra0.012, and the frosting degree of the frosted stripe group is greater than or equal to Ra1.4, so that the light transmission of the light transmission stripe is better, and the backlight of the frosted stripe group is better.
3. According to the light source panel of the light-gathering frosted fringe group, the thickness of the light source panel is 0.5-3 mm, the width of the frosted fringe group is 0.5-30 mm, the width of the light-transmitting fringe group is 0.5-30 mm, the width of the light source panel is 1-1500 mm, the light transmission performance can be better due to the thickness interval of the light source panel, and the width of the frosted fringe group and the width of the light-transmitting fringe can be attached to the incident angle of a light source, so that the light gathering is fully achieved.
4. This but light source panel of dull polish stripe group of spotlight, light source panel are passed through hot melt extrusion molding by the thermoplastic transparent resin, then form through hot melt compression molding or hot melt injection molding to the thermoplastic transparent resin after the hot melt extrusion molding again, and the light source panel preparation method that adopts this kind of preparation of hot melt compression molding to make is simple, and the shaping is fast, and the light source panel plasticity of adopting hot melt injection molding to make is high, and toughness is strong
Drawings
FIG. 1 is a perspective view of a light source panel of a frosted fringe group capable of condensing light;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
In the figure: 1 light source panel, 2 frosted stripe groups, 3 stripes and 4 transmission stripes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: please refer to fig. 1-2; the utility model provides a but light source panel of dull polish stripe group of spotlight, includes light source panel 1, and light source panel 1's upper and lower wall is the plane, and light source panel 1's top wall is provided with the strip line, and the stripe way is including dull polish stripe group 2 and light transmission stripe 4, dull polish stripe group 2 vertically sets up the top wall at light source panel 1, and the quantity of dull polish stripe group 2 increases or reduces according to light source panel 1's width, every group dull polish stripe group 2 is formed by the combination of stripe 3, and stripe 3 is in the same place with light source panel 1's top wall fixed connection, and light transmission stripe 4 fixed mounting is on light source panel 1's top wall, and the quantity of light transmission stripe 4 is decided according to light source panel 1's width, and every light transmission stripe 4 sets up between every two sets of dull polish stripe groups 2, light source panel 1 is formed by the preparation of thermoplasticity transparent resin.
The super mirror surface smoothness of the light-transmitting stripes 4 is Ra0.011, the frosting degree of the frosted stripe group 2 is Ra1.4, and Ra is a measurement unit of surface roughness.
The thickness of the light source panel 1 is 0.5 mm, the width of the light source panel 1 is 1500 mm, the width of the frosted stripe group 2 is 10 mm, the width of the light transmission stripe 4 is 10 mm, wherein a + b (sin phi +/-sin theta) is applied to a grating wavelength calculation formula as k lambda, wherein a represents a slit width, the slit width is 10 mm of the light transmission stripe 4, b represents a slit interval, the slit interval is the interval between every two light transmission stripes 4, the frosted stripe group 2 is arranged between every two light transmission stripes 4, the frosted stripe group 2 is a crack interval, the width of the frosted stripe group 2 is 10 mm, phi is a diffraction angle, theta is an included angle between an incident direction of light and a normal line of a grating plane, k is a bright stripe spectral progression, and lambda is a wavelength.
The light source panel 1 is made of any one of thermoplastic transparent resin selected from polypropylene, polyethylene, polycarbonate, polyvinyl chloride resin, ABS resin or polymethyl acrylate.
The polypropylene ethylene, also called ethylene propylene rubber, is a copolymer rubber which takes ethylene and propylene as basic monomers and is produced after the invention of Ziegler-Natta catalyst and the appearance of polyethylene and polypropylene, and is divided into two main types of ethylene propylene rubber (EPM) and ethylene propylene diene rubber (EPDM). Since the former is a copolymer of ethylene and propylene and the latter is a copolymer of ethylene, propylene and a small amount of a non-conjugated diene, the light source panel 1 made of polypropylene has an advantage of high plasticity and first-order strength.
The polyvinyl chloride resin is mainly composed of polyvinyl chloride, and has the outstanding characteristics of rich raw materials (petroleum, limestone, coke, salt and natural gas), mature manufacturing process, low price, wide application and the like.
The ABS resin is a thermoplastic high polymer material with high strength, good toughness and easy processing and molding, can be processed into plastic by injection molding, extrusion, vacuum, blow molding, rolling and other molding methods, has simple manufacturing process and good plasticity, and can enable the thermoplastic transparent resin to have good plasticity after being manufactured.
The polymethyl acrylate is tough and strong, and the polymethyl acrylate is a viscous liquid and is convenient to process, so that the light source panel 1 made of the polymethyl acrylate has high strength and toughness.
Among them, polycarbonate is a tough thermoplastic resin, which has high strength toughness and plasticity, and the light transmittance of polycarbonate is excellent, so that the light source panel 1 made of polycarbonate has good light transmittance and high strength toughness.
Among them, polyethylene is excellent in corrosion resistance and electrical insulation (particularly high-frequency insulation), can be chlorinated and modified by irradiation, and can be reinforced by glass fibers or the melting point, rigidity and hardness of low-pressure polyethylene, so that the light source panel 1 made of polyethylene has corrosion resistance and insulation.
The polypropylene is colorless and free of peculiar smell, the light transmission of the polypropylene is good, and the weight of the polypropylene is light, so that the polypropylene made of the polypropylene is free of peculiar smell and good in light transmission.
Light source panel 1 is by the transparent resin of thermoplasticity through hot melt extrusion molding, then forms the transparent resin of thermoplasticity after the hot melt extrusion molding through hot melt compression molding or hot melt injection molding, and the light source panel 1 that adopts this kind of preparation of hot melt compression molding preparation mode is simple, and the shaping is fast, and the light source panel 1 plasticity of adopting hot melt injection molding preparation is high, and toughness is strong.
The light-transmitting stripes 4 are rectangular blocks, and the length of the light-transmitting stripes 4 is the same as that of the light source panel 1.
Example two: please refer to fig. 1-2; the utility model provides a but light source panel of dull polish stripe group of spotlight, includes light source panel 1, and light source panel 1's upper and lower wall is the plane, and light source panel 1's top wall is provided with the strip line, and the stripe way is including dull polish stripe group 2 and light transmission stripe 4, dull polish stripe group 2 vertically sets up the top wall at light source panel 1, and the quantity of dull polish stripe group 2 increases or reduces according to light source panel 1's width, every group dull polish stripe group 2 is formed by the combination of stripe 3, and stripe 3 is in the same place with light source panel 1's top wall fixed connection, and light transmission stripe 4 fixed mounting is on light source panel 1's top wall, and the quantity of light transmission stripe 4 is decided according to light source panel 1's width, and every light transmission stripe 4 sets up between every two sets of dull polish stripe groups 2, light source panel 1 is formed by the preparation of thermoplasticity transparent resin.
The super mirror surface smoothness of the light-transmitting stripes 4 is Ra0.010, the frosting degree of the frosted stripe group 2 is Ra1.5, and Ra is a measurement unit of surface roughness.
The thickness of the light source panel 1 is 1 mm, the width of the light source panel 1 is 1400 mm, the width of the frosted stripe group 2 is 15 mm, the width of the light transmission stripes 4 is 15 mm, wherein a + b (sin phi +/-sin theta) is k lambda is applied by using a wavelength calculation formula of a grating, wherein a represents a slit width, the slit width is 15 mm of the light transmission stripes 4, b represents a slit interval, the slit interval is the interval between every two light transmission stripes 4, the frosted stripe group 2 is arranged between every two light transmission stripes 4, the frosted stripe group 2 is a crack interval, the width of the frosted stripe group 2 is 15 mm, phi is a diffraction angle, theta is an included angle between an incident direction of light and a normal line of a grating plane, k is a bright stripe spectral progression, and lambda is a wavelength;
the light source panel 1 is made of any one of thermoplastic transparent resin selected from polypropylene, polyethylene, polycarbonate, polyvinyl chloride resin, ABS resin or polymethyl acrylate.
The polypropylene ethylene, also called ethylene propylene rubber, is a copolymer rubber which takes ethylene and propylene as basic monomers and is produced after the invention of Ziegler-Natta catalyst and the appearance of polyethylene and polypropylene, and is divided into two main types of ethylene propylene rubber (EPM) and ethylene propylene diene rubber (EPDM). Since the former is a copolymer of ethylene and propylene and the latter is a copolymer of ethylene, propylene and a small amount of a non-conjugated diene, the light source panel 1 made of polypropylene has an advantage of high plasticity and first-order strength.
The polyvinyl chloride resin is mainly composed of polyvinyl chloride, and has the outstanding characteristics of rich raw materials (petroleum, limestone, coke, salt and natural gas), mature manufacturing process, low price, wide application and the like.
The ABS resin is a thermoplastic high polymer material with high strength, good toughness and easy processing and molding, can be processed into plastic by injection molding, extrusion, vacuum, blow molding, rolling and other molding methods, has simple manufacturing process and good plasticity, and can enable the thermoplastic transparent resin to have good plasticity after being manufactured.
The polymethyl acrylate is tough and strong, and the polymethyl acrylate is a viscous liquid and is convenient to process, so that the light source panel 1 made of the polymethyl acrylate has high strength and toughness.
Among them, polycarbonate is a tough thermoplastic resin, which has high strength toughness and plasticity, and the light transmittance of polycarbonate is excellent, so that the light source panel 1 made of polycarbonate has good light transmittance and high strength toughness.
Among them, polyethylene is excellent in corrosion resistance and electrical insulation (particularly high-frequency insulation), can be chlorinated and modified by irradiation, and can be reinforced by glass fibers or the melting point, rigidity and hardness of low-pressure polyethylene, so that the light source panel 1 made of polyethylene has corrosion resistance and insulation.
The polypropylene is colorless and free of peculiar smell, the light transmission of the polypropylene is good, and the weight of the polypropylene is light, so that the polypropylene made of the polypropylene is free of peculiar smell and good in light transmission.
Light source panel 1 is by the transparent resin of thermoplasticity through hot melt extrusion molding, then forms the transparent resin of thermoplasticity after the hot melt extrusion molding through hot melt compression molding or hot melt injection molding, and the light source panel 1 that adopts this kind of preparation of hot melt compression molding preparation mode is simple, and the shaping is fast, and the light source panel 1 plasticity of adopting hot melt injection molding preparation is high, and toughness is strong.
The length of the light-transmitting stripes 4 is the same as that of the light source panel 1, the light-transmitting stripes 4 are rectangular blocks, and the length of the light-transmitting stripes 4 is the same as that of the light source panel 1.
The third implementation: please refer to fig. 1-2; the utility model provides a but light source panel of dull polish stripe group of spotlight, includes light source panel 1, and light source panel 1's upper and lower wall is the plane, and light source panel 1's top wall is provided with the strip line, and the stripe way is including dull polish stripe group 2 and light transmission stripe 4, dull polish stripe group 2 vertically sets up the top wall at light source panel 1, and the quantity of dull polish stripe group 2 increases or reduces according to light source panel 1's width, every group dull polish stripe group 2 is formed by the combination of stripe 3, and stripe 3 is in the same place with light source panel 1's top wall fixed connection, and light transmission stripe 4 fixed mounting is on light source panel 1's top wall, and the quantity of light transmission stripe 4 is decided according to light source panel 1's width, and every light transmission stripe 4 sets up between every two sets of dull polish stripe groups 2, light source panel 1 is formed by the preparation of thermoplasticity transparent resin.
The super mirror surface smoothness of the light-transmitting stripes 4 is Ra0.09, the frosting degree of the frosted stripe group 2 is Ra1.6, and Ra is a measurement unit of surface roughness.
The thickness of the light source panel 1 is 2 millimeters, the width of the light source panel 1 is 1300 millimeters, the width of the frosted stripe group 2 is 20 millimeters, the width of the light-transmitting stripes 4 is 20 millimeters, wherein a + b (sin phi +/-sin theta) is k lambda by applying a wavelength calculation formula of a grating, wherein a represents a slit width, the slit width is 20 millimeters of the light-transmitting stripes 4, b represents a slit interval, the slit interval is the interval between every two light-transmitting stripes 4, the frosted stripe group 2 is arranged between every two light-transmitting stripes 4, the frosted stripe group 2 is a crack interval, the width of the frosted stripe group 2 is 20 millimeters, phi is a diffraction angle, theta is an included angle between an incident direction of light and a normal line of a grating plane, k is a bright stripe spectral progression, and lambda is a wavelength;
the light source panel 1 is made of any one of thermoplastic transparent resin selected from polypropylene, polyethylene, polycarbonate, polyvinyl chloride resin, ABS resin or polymethyl acrylate.
The polypropylene ethylene, also called ethylene propylene rubber, is a copolymer rubber which takes ethylene and propylene as basic monomers and is produced after the invention of Ziegler-Natta catalyst and the appearance of polyethylene and polypropylene, and is divided into two main types of ethylene propylene rubber (EPM) and ethylene propylene diene rubber (EPDM). Since the former is a copolymer of ethylene and propylene and the latter is a copolymer of ethylene, propylene and a small amount of a non-conjugated diene, the light source panel 1 made of polypropylene has an advantage of high plasticity and first-order strength.
The polyvinyl chloride resin is mainly composed of polyvinyl chloride, and has the outstanding characteristics of rich raw materials (petroleum, limestone, coke, salt and natural gas), mature manufacturing process, low price, wide application and the like.
The ABS resin is a thermoplastic high polymer material with high strength, good toughness and easy processing and molding, can be processed into plastic by injection molding, extrusion, vacuum, blow molding, rolling and other molding methods, has simple manufacturing process and good plasticity, and can enable the thermoplastic transparent resin to have good plasticity after being manufactured.
The polymethyl acrylate is tough and strong, and the polymethyl acrylate is a viscous liquid and is convenient to process, so that the light source panel 1 made of the polymethyl acrylate has high strength and toughness.
Among them, polycarbonate is a tough thermoplastic resin, which has high strength toughness and plasticity, and the light transmittance of polycarbonate is excellent, so that the light source panel 1 made of polycarbonate has good light transmittance and high strength toughness.
Among them, polyethylene is excellent in corrosion resistance and electrical insulation (particularly high-frequency insulation), can be chlorinated and modified by irradiation, and can be reinforced by glass fibers or the melting point, rigidity and hardness of low-pressure polyethylene, so that the light source panel 1 made of polyethylene has corrosion resistance and insulation.
The polypropylene is colorless and free of peculiar smell, the light transmission of the polypropylene is good, and the weight of the polypropylene is light, so that the polypropylene made of the polypropylene is free of peculiar smell and good in light transmission.
Light source panel 1 is by the transparent resin of thermoplasticity through hot melt extrusion molding, then forms the transparent resin of thermoplasticity after the hot melt extrusion molding through hot melt compression molding or hot melt injection molding, and the light source panel 1 that adopts this kind of preparation of hot melt compression molding preparation mode is simple, and the shaping is fast, and the light source panel 1 plasticity of adopting hot melt injection molding preparation is high, and toughness is strong.
The length of the light-transmitting stripes 4 is the same as that of the light source panel 1, the light-transmitting stripes 4 are rectangular blocks, and the length of the light-transmitting stripes 4 is the same as that of the light source panel 1.
When in use, the utility model is used,
the light is transmitted to the light source panel 1 through the light source, then the light source irradiated to the frosted stripe group 2 is rebounded to the external light guide plate, then the light source rebounds to the light source panel 1 through the external light guide plate, and the light source penetrates through the light source panel 1 through the light transmission stripes 4.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A frosted stripe group light source panel capable of condensing light comprises a light source panel (1), and is characterized in that: the upper wall surface and the lower wall surface of the light source panel (1) are planes, the upper wall surface of the light source panel (1) is provided with stripe lines, each stripe line comprises a frosted stripe group (2) and a light-transmitting stripe (4), the frosted stripe groups (2) are longitudinally arranged on the upper wall surface of the light source panel (1), each frosted stripe group (2) is formed by combining stripes (3), the stripes (3) are fixedly connected with the upper wall surface of the light source panel (1), the light-transmitting stripe (4) is fixedly arranged on the upper wall surface of the light source panel (1), each light-transmitting stripe (4) is arranged between every two groups of frosted stripe groups (2), the light source panel (1) is made of thermoplastic transparent resin, the super mirror surface of each light-transmitting stripe (4) is smooth and is not more than Ra0.012, and the frosting degree of each frosted stripe group (2) is not less than Ra1.4.
2. A light concentrating frosted striping group light source panel as in claim 1, wherein: the thickness of the light source panel (1) is 0.5-3 mm, the width of the frosted stripe group (2) is 0.5-30 mm, the width of the light-transmitting stripe (4) is 0.5-30 mm, and the width of the light source panel (1) is 1-1500 mm.
3. A light concentrating frosted striping group light source panel as in claim 1, wherein: the thermoplastic transparent resin used by the light source panel (1) is made of any one material selected from polypropylene, polyethylene, polycarbonate, polyvinyl chloride resin, ABS resin or polymethyl acrylate.
4. A light concentrating frosted striping group light source panel as in claim 1, wherein: the light source panel (1) is formed by hot-melt extrusion of thermoplastic transparent resin and then hot-melt compression molding or hot-melt injection molding of the thermoplastic transparent resin after the hot-melt extrusion.
5. A light concentrating frosted striping group light source panel as in claim 1, wherein: the light-transmitting stripes (4) are rectangular blocks, and the length of the light-transmitting stripes (4) is the same as that of the light source panel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921137720.7U CN210979717U (en) | 2019-07-18 | 2019-07-18 | Frosted fringe group light source panel capable of condensing light |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921137720.7U CN210979717U (en) | 2019-07-18 | 2019-07-18 | Frosted fringe group light source panel capable of condensing light |
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| CN210979717U true CN210979717U (en) | 2020-07-10 |
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| CN201921137720.7U Expired - Fee Related CN210979717U (en) | 2019-07-18 | 2019-07-18 | Frosted fringe group light source panel capable of condensing light |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242938A (en) * | 2019-07-18 | 2019-09-17 | 东莞国力工业照明科技有限公司 | It is a kind of can optically focused brush streaks group light source panel |
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2019
- 2019-07-18 CN CN201921137720.7U patent/CN210979717U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242938A (en) * | 2019-07-18 | 2019-09-17 | 东莞国力工业照明科技有限公司 | It is a kind of can optically focused brush streaks group light source panel |
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