KR20140029580A - Straight pipe type led lighting device - Google Patents

Straight pipe type led lighting device Download PDF

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Publication number
KR20140029580A
KR20140029580A KR1020120094340A KR20120094340A KR20140029580A KR 20140029580 A KR20140029580 A KR 20140029580A KR 1020120094340 A KR1020120094340 A KR 1020120094340A KR 20120094340 A KR20120094340 A KR 20120094340A KR 20140029580 A KR20140029580 A KR 20140029580A
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KR
South Korea
Prior art keywords
substrate
cap
heat dissipation
led lighting
dissipation member
Prior art date
Application number
KR1020120094340A
Other languages
Korean (ko)
Inventor
이재욱
이인호
이도명
이승국
한규현
김동환
Original Assignee
한솔라이팅 (주)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한솔라이팅 (주) filed Critical 한솔라이팅 (주)
Priority to KR1020120094340A priority Critical patent/KR20140029580A/en
Publication of KR20140029580A publication Critical patent/KR20140029580A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/102—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using gravity or suction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/002—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips making direct electrical contact, e.g. by piercing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/005—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate is supporting also the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/87—Organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Abstract

The present invention can reduce the manufacturing cost by using a small number of parts, as well as to increase the productivity of the product by allowing the assembly of parts easily and quickly, as well as intuition to minimize the occurrence of defects in the assembly process It relates to a type LED lighting device.
Intuitive LED lighting device according to the present invention,
A body of a circular tube shape to which the floodlight cover and the heat dissipation member are coupled;
A substrate embedded in the body along a length direction and continuously mounted with an LED module that emits light when power is applied;
A cap coupled to the front and rear ends of the body, the terminal in the form of a pin electrically connected to the substrate,
The cap is provided with a slot having a conductive terminal piece connected to the pin-shaped terminal inside the cap is characterized in that the cap and the substrate is electrically connected as the front and rear ends of the substrate is inserted into the slot provided in each cap.

Description

Straight pipe type LED lighting device

The present invention relates to an LED lighting device, and more particularly, it is possible to reduce the cost by being composed of a minimum number of parts as well as to increase the productivity of the product by allowing the assembly of the parts easily and quickly, the assembly It relates to an intuitive LED lighting device to minimize the occurrence of defects in the process.

Lighting is used to secure a view at night or in a place where light does not flow from the outside.

At this time, a normal lamp was an incandescent lamp or a fluorescent lamp.

Incandescent lamps or fluorescent lamps emit light when power is applied, and thus a visual field can be secured in a dark situation.

However, incandescent lamps or fluorescent lamps have a problem that their lifespan is not maintained for a long time, there is a problem that the brightness is lowered, and power consumption is a significant problem.

On the other hand, LED (light emitting diode) lighting device has recently been proposed.

LED lighting devices have a long life compared to incandescent lamps or fluorescent lamps, as well as excellent brightness and low power consumption has become popular as an alternative to incandescent or fluorescent lamps.

One type of such LED lighting device is a linear LED lighting device.

The linear LED lighting device includes a board having a plurality of LED modules mounted inside a body formed by combining a floodlight cover and a heat dissipation member, and a cap having pin-shaped terminals electrically connected to the board at both front and rear ends of the body. It is prepared.

At this time, the terminal provided in the cap of the linear LED lighting device is of the same shape and standard as the terminal of the ordinary fluorescent lamp, and connects the terminal provided in the cap of the linear LED lighting device to the general fluorescent mounting frame without a separate mounting frame. By doing so, it could be used immediately.

However, while the conventional straight-type LED lighting device can be made easy to use, product productivity is low, frequent occurrence of defective products, and manufacturing costs have a considerable problem.

That is, the conventional tube-type LED lighting (A ') is the electrical connection between the cap 30' and the board 20 'is provided with a terminal 31' as shown in Figure 6 connector 40 and the cable 50 Since the connection was made, it is not only expensive to prepare the connector 40 and the cable 50, but also required a considerable time-consuming and cumbersome connection work such as soldering, resulting in a problem of low productivity. As a result, there was a problem that a defect occurs in the connection portion and leads to a defect, and a manufacturing cost increases as a number of parts are required.

For this reason, in the relevant field, the assembly of parts can be made easily and quickly, thereby increasing the productivity of the product, minimizing the occurrence of defects in the assembly process, and minimizing the number of parts. While attempting to develop an intuitive LED lighting device that can be reduced, so far has not been satisfactory results.

The present invention has been proposed in view of the above situation, the production cost increases as a large number of components are used when manufacturing a linear LED lighting device, and the time required and hassle in the assembly process of the parts, the product It is an object of the present invention to provide an intuitive LED lighting device that can solve the problem of low productivity and frequent defects.

Intuitive LED lighting device according to the present invention for achieving the above object,

A body of a circular tube shape to which the floodlight cover and the heat dissipation member are coupled;

A substrate embedded in the body along a length direction and continuously mounted with an LED module that emits light when power is applied;

A cap coupled to the front and rear ends of the body, the terminal in the form of a pin electrically connected to the substrate,

The cap is provided with a slot having a conductive terminal piece connected to the pin-shaped terminal inside the cap is characterized in that the cap and the substrate is electrically connected as the front and rear ends of the substrate is inserted into the slot provided in each cap.

Here, the heat dissipation member of the body is characterized in that the heat dissipation plastic.

The heat dissipation member may be integrally formed with the floodlight cover by double extrusion, or may be formed separately from the floodlight cover and then coupled with the floodlight cover.

And both ends of the transparent cover formed integrally with the heat dissipation member is provided with stepped in the longitudinal direction is characterized in that the substrate is inserted between the stepped both sides.

And both ends of the heat dissipation member is formed separately from the light-transmitting cover is provided with protrusions extending in the longitudinal direction, both ends of the light-emitting cover is inserted in the lower side of both projections, characterized in that the substrate is inserted between the two protruding pieces will be.

And the light-transmitting cover and the heat dissipation member to be bonded after being formed separately is characterized in that the bonding state is fixed by vacuum compression.

The substrate inserted between the projecting pieces of the heat dissipation member is fixed to the heat dissipation member by vacuum compression.

And the substrate is characterized in that the contact is provided on any one of the upper surface or the lower surface of the front and rear end contact is in contact with the conductive elastic piece of the slot is characterized in that the elastic piece of the slot and the substrate is electrically connected.

Straight LED lighting device according to the present invention is to use a small number of parts, it is possible to minimize the cost of the component to reduce the manufacturing cost, as well as a slot having a conductive elastic piece connected to the terminal on each side cap Since the front and rear ends of the substrate are inserted into slots provided at both caps, the substrate and the cap are coupled, and the terminals of the substrate and the cap are electrically connected, so that the substrate and the cap and the electrical connection between the substrate and the cap are secured. Since it can be made easily, there is an effect that the product productivity can be improved by simplifying the assembly process, there is an effect that can prevent the occurrence of defects in the process of coupling the substrate and the cap and the electrical connection of the substrate and the cap.

1 is an exploded perspective view for explaining the structure of a linear LED lighting apparatus according to the present invention
Figure 2 is a partial cross-sectional view for explaining the structure of the intuitive LED lighting apparatus according to the present invention
Figure 3 is a partial cross-sectional view showing a coupling form of the body and the substrate in the intuitive LED lighting apparatus according to the present invention
Figure 4 is a partial cross-sectional view showing another coupling form of the body and the substrate in the intuitive LED lighting apparatus according to the present invention
Figure 5 is a partial cross-sectional view for explaining the electrical connection of the cap and the substrate in the intuitive LED lighting apparatus according to the present invention
Figure 6 is a schematic diagram for explaining the electrical connection of the cap and the substrate in a conventional linear LED lighting device

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As illustrated in FIGS. 1 and 2, the linear LED lighting apparatus A according to the present invention includes a body 10, a substrate 20, and a cap 30.

The body 10 is in the form of a circular tube to which the floodlight cover 11 and the heat dissipation member 12 are coupled.

In the body 10, the heat dissipation member 12 is preferably made of a heat dissipation plastic.

Since the heat dissipation member 12 is made of a heat dissipation plastic, the heat dissipation member 12 can be made lighter in comparison with a metal such as aluminum.

In this case, the heat radiating member 12 may be integrally formed with the floodlight cover 11.

That is, when the heat dissipation member 12 is extruded together, that is, the double extrusion, during the extrusion of the floodlight cover 11, the floodlight cover 11 and the heat dissipation member 12 may be integrally molded, and thus the heat dissipation cover 11 and the heat dissipation. This eliminates the time and hassle of joining the member 12.

At this time, it is preferable that stepped portions 11a extending in the longitudinal direction are provided at both end portions of the floodlight cover 11 integrally formed with the heat dissipation member 12.

Steps 11a extending along the longitudinal direction are provided at both end portions of the light-emitting cover 11 integrally formed with the heat dissipation member 12, so that the body 10 and the substrate 20 are inserted between the stepped portions 11a. ) Can be easily combined.

However, the heat dissipation member 12 is not necessarily integrally molded with the floodlight cover 11.

That is, even after the heat dissipation member 12 and the floodlight cover 11 are separately formed, even if the heat dissipation member 12 and the floodlight cover 11 are separately formed, the body 10 may be formed in a circular tube shape. Will be.

At this time, it is preferable that the protruding pieces 12a extending along the longitudinal direction are provided at both end portions of the heat dissipation member 12 that are separately formed and then combined with the floodlight cover 11.

After forming separately, projecting pieces 12a extending in the longitudinal direction are provided at both end portions of the heat dissipation member 12 that are combined with the floodlight cover 11, so that both ends of the floodlight cover 11 are disposed below both projecting pieces 12a. By inserting the light emitting cover 11 and the heat dissipation member 12 can be combined, the substrate 20 is inserted between the two protruding pieces (12a), the body 10 and the substrate 20 is made to be coupled It becomes possible.

Meanwhile, the transparent cover 11 and the heat dissipation member 12 that are separately formed and then coupled to each other may be fixed to each other by vacuum compression, and the substrate may be inserted between the protruding pieces 12a of the heat dissipation member 12. 20 may be fixed to the heat radiation member 12 by vacuum compression.

The substrate 20 is embedded in the body 10 along the length direction, and the LED module 21 that emits light when power is applied is continuously mounted.

At this time, the LED module 21 on the substrate 20 is of course located on the side of the floodlight cover 11 of the body 10.

The LED module 21 on the substrate 20 is located on the transparent cover 11 side of the body 10 so that the light from the LED module 21 is diffused by the transparent cover 11 and transmitted to the outside of the body 10. It becomes possible.

On the other hand, it is preferable that the contact point 22 is provided in any one of the upper and lower surfaces of the board | substrate 20 front and back.

The contact 22 is provided on either the upper or lower surface of the front and rear ends of the substrate 20 so that the conductive inertia piece 32a of the slot 32 when the substrate 20 is inserted into the slot 32 of the cap 30. The contact of the contact 22 to the cap 30 and the substrate 20 can be electrically connected.

At this time, the contact 22 of the substrate 20 is of course connected to each of the LED module 21 mounted on the substrate 20.

The cap 30 is coupled to the front and rear ends of the body 10, the pin 31 of the terminal 31 is electrically connected to the substrate 20.

In the cap 30, it is preferable that a slot 32 having a pin-shaped terminal 31 and a conductive elastic piece 32a connected thereto is provided.

A slot 32 having a pin-shaped terminal 31 and a conductive elastic piece 32a connected to the cap 30 is provided in the cap 30 so that the front and rear ends of the substrate 20 are inserted into the slot 32 of the cap 30 on both sides. If fitted, the electrical connection between the cap 30 and the substrate 20 can be made.

On the other hand, the cap 30 is an opening 33 is provided on one side, the bolt through hole 33a is provided on the opening 33.

Therefore, when one end of the body 10 is inserted into the opening 33 of the cap 30 and the bolt 34 is fastened through the bolt through hole 33a, the coupling between the cap 30 and the body 10 is achieved. It can be done.

Referring to the assembly of the linear LED lighting device (A) according to the present invention as described above in detail as follows.

First, the body 10 and the substrate 20 are combined.

In the present invention, the body 10 is made of a transparent cover 11 and the heat dissipation member 12 formed integrally, or is formed of a light-transmitting cover 11 and the heat dissipation member 12 to be combined and molded separately.

In this case, when the floodlight cover 11 and the heat dissipation member 12 are integrally formed, as shown in FIG. 3, the stepped portions 11a extending along the longitudinal direction are provided at both ends of the floodlight cover 11. When the substrate 20 is sandwiched between the 11a, the body 10 and the substrate 20 can be easily combined.

And separately formed after the end of the heat dissipation member 12 coupled to the floodlight cover 11 is provided with a projection piece 12a extending along the longitudinal direction as shown in Figure 4, coupled with the floodlight cover 11 When the substrate 20 is inserted between the two protruding pieces 12a of the heat dissipation member 12 and vacuum compressed, the body 10 and the substrate 20 may be coupled to each other.

At this time, both ends of the floodlight cover 11 is inserted into the lower side of the both sides protruding piece 12a of the heat radiation member 12, so that the separately formed floodlight cover 11 and the heat radiation member 12 can be combined, and the light transmission Since both ends of the cover 11 are inserted into the lower side of the both side projections 12a of the heat radiation member 12, vacuum pressing is performed, so that the combined state of the floodlight cover 11 and the heat radiation member 12 can be fixed. .

Next, the cap 30 and the body 10 are combined.

Opening 33 is provided on one side of the cap 30 in the present invention.

Therefore, the front and rear ends of the body are respectively inserted into the openings 33 of the caps 30 on both sides, and then the bolts 30 are fastened through the bolt through holes 33a formed on the openings 33. ) And the body 10 can be combined.

In the process of coupling the cap 30 and the body 10, the substrate 20 and the cap 30 are electrically connected to each other.

That is, in the present invention, the cap 30 is provided with a slot 32 having a pin-shaped terminal 31 and a conductive elastic piece 32a connected thereto. When this is done, the front and rear ends of the substrate 20 can be inserted into the slots 32 provided in each cap 30.

At this time, the contact 22 is provided on any one of the upper and lower surfaces of the front and rear ends of the substrate 20, and as shown in FIG. 5, the contacts 22 of the substrate 20 are provided in the slot 32. Since the contact with the elastic piece 32a, even if the connector 40 and the cable 50 are not connected by soldering between the cap 30 and the substrate 20, the electrical connection between the substrate 20 and the cap 30 can be easily performed. It can be done.

Therefore, when the pin-shaped terminal 31 of the cap 30 is coupled to a fluorescent lamp mounting frame (not shown) and a current flows through the pin-shaped terminal 31, the current is transmitted from the pin-shaped terminal 31 to the slot 32. Since it flows to the contact 22 of the substrate 20 via the conductive elastic piece 32a provided in the power supply, power can be supplied to the substrate 20, so that light emission of the LED module 21 mounted on the substrate 20 is prevented. It can be done.

Straight LED lighting device (A) according to the present invention as described above is to use a small number of parts, it is possible to minimize the cost of the components can not only reduce the manufacturing cost, but also pin form on each side cap 30 A slot 32 having a conductive elastic piece 32a connected to the terminal 31 is provided. The front and rear ends of the substrate 20 are respectively inserted into the slots 32 provided on both side caps 30. The substrate 20 and the cap 30 are coupled to each other, and the substrate 20 and the terminal 31 of the cap 30 are electrically connected, so that the substrate 20 and the cap 30 are coupled to each other, and the substrate 20 and the cap 30 are connected to each other. ), The electrical connection can be easily made, so that product productivity can be improved by simplifying the assembly process, and the substrate 20 and the cap 30 are coupled to each other, and the substrate 20 and the cap 30 are electrically connected to each other. It is possible to prevent the occurrence of defects.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

10 body 11: floodlight cover
11a: step 12: heat radiating member
12a: Protrusion 20, 20 ': Substrate
21: LED module 22: contact
30, 30 ': Cap 31, 31': Terminal
32: slot 32a: elastic piece
33: opening 33a: bolt through hole
34: bolt 40: connector
50: cable A, A ': straight type LED lighting device

Claims (8)

A body of a circular tube shape to which the floodlight cover and the heat dissipation member are coupled;
A substrate embedded in the body along a length direction and continuously mounted with an LED module that emits light when power is applied;
A cap coupled to the front and rear ends of the body, the terminal in the form of a pin electrically connected to the substrate,
Intuitive LED lighting is characterized in that the cap is provided with a slot having a conductive terminal with a pin-shaped terminal connected to the inside of the cap is inserted into the slots provided in each of the caps on both sides of the cap and the substrate is electrically connected. Device. The method of claim 1,
Intuitive LED lighting device, characterized in that the heat dissipation member of the body is a heat dissipation plastic. 3. The method of claim 2,
The heat dissipation member is formed integrally with the floodlight cover by double extrusion, or formed separately from the floodlight cover, and then a linear LED lighting device, characterized in that combined with the floodlight cover. The method of claim 3,
Both ends of the floodlight cover integrally formed with the heat dissipation member is provided with stepped in the longitudinal direction is provided with a straight LED lighting device, characterized in that the substrate is inserted between the stepped both sides. The method of claim 3,
Both ends of the heat dissipation member formed separately from the floodlight cover are provided with protrusions extending in the longitudinal direction, and both ends of the floodlight cover are inserted below both projection pieces, and a substrate is inserted between the two projection pieces. Type LED lighting device. The method of claim 3,
Straight-type LED lighting apparatus, characterized in that the combined state is fixed to the transparent cover and the heat dissipation member after being molded separately by vacuum compression. 6. The method of claim 5,
The substrate inserted between the projecting pieces of the heat dissipation member is a linear LED lighting apparatus, characterized in that fixed to the heat dissipation member by vacuum compression. The method of claim 1,
The substrate is a linear LED lighting apparatus, characterized in that the contact is provided on any one of the upper surface or the lower surface of the front and rear end and the contact is in contact with the conductive elastic piece of the slot electrically connected to the elastic piece of the slot.
KR1020120094340A 2012-08-28 2012-08-28 Straight pipe type led lighting device KR20140029580A (en)

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Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120094340A KR20140029580A (en) 2012-08-28 2012-08-28 Straight pipe type led lighting device

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160027697A (en) * 2014-09-02 2016-03-10 주식회사 라이트엔 An assembied LED fiuorescent light with actuation circuit
WO2016089017A1 (en) * 2014-12-05 2016-06-09 서울바이오시스 주식회사 Ultraviolet ray emitting diode lighting device
KR20160139737A (en) 2015-05-28 2016-12-07 홍순황 Light diffusion pipe formed by rolling a sheet and led illumination device of fluorescent type having the pipe
KR20170025132A (en) 2015-08-27 2017-03-08 홍순황 Light diffusion sheet for interior of optically transmissive pipe and led illumination device of fluorescent type including the same
KR101895928B1 (en) 2018-03-28 2018-09-07 (주)디파트너 Led illumination device of fluorescent type and preparation method thereof
KR20210091599A (en) 2020-01-14 2021-07-22 정덕윤 Fluorescent type led illumination device with reinforced assemblability of power cap

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160027697A (en) * 2014-09-02 2016-03-10 주식회사 라이트엔 An assembied LED fiuorescent light with actuation circuit
WO2016089017A1 (en) * 2014-12-05 2016-06-09 서울바이오시스 주식회사 Ultraviolet ray emitting diode lighting device
CN107002952A (en) * 2014-12-05 2017-08-01 首尔伟傲世有限公司 Ultraviolet LED lighting device
US10260707B2 (en) 2014-12-05 2019-04-16 Seoul Viosys Co., Ltd. Ultra violet ray emitting diode lighting device
KR20160139737A (en) 2015-05-28 2016-12-07 홍순황 Light diffusion pipe formed by rolling a sheet and led illumination device of fluorescent type having the pipe
KR20170025132A (en) 2015-08-27 2017-03-08 홍순황 Light diffusion sheet for interior of optically transmissive pipe and led illumination device of fluorescent type including the same
KR101895928B1 (en) 2018-03-28 2018-09-07 (주)디파트너 Led illumination device of fluorescent type and preparation method thereof
KR20210091599A (en) 2020-01-14 2021-07-22 정덕윤 Fluorescent type led illumination device with reinforced assemblability of power cap

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