KR20130073585A - Optical semiconductor based tube type lighting apparatus - Google Patents

Optical semiconductor based tube type lighting apparatus Download PDF

Info

Publication number
KR20130073585A
KR20130073585A KR1020110141522A KR20110141522A KR20130073585A KR 20130073585 A KR20130073585 A KR 20130073585A KR 1020110141522 A KR1020110141522 A KR 1020110141522A KR 20110141522 A KR20110141522 A KR 20110141522A KR 20130073585 A KR20130073585 A KR 20130073585A
Authority
KR
South Korea
Prior art keywords
end cap
engagement
tubular structure
tubular
printed circuit
Prior art date
Application number
KR1020110141522A
Other languages
Korean (ko)
Inventor
유민욱
김윤하
이덕주
Original Assignee
주식회사 포스코엘이디
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 주식회사 포스코엘이디 filed Critical 주식회사 포스코엘이디
Priority to KR1020110141522A priority Critical patent/KR20130073585A/en
Publication of KR20130073585A publication Critical patent/KR20130073585A/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • F21K9/275—Details of bases or housings, i.e. the parts between the light-generating element and the end caps; Arrangement of components within bases or housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • F21K9/278—Arrangement or mounting of circuit elements integrated in 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
    • 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
    • F21V17/16—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 by deformation of parts; Snap action mounting
    • 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
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • 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

Abstract

An optical semiconductor based tubular lighting apparatus is disclosed. An optical semiconductor-based tubular lighting device includes a tubular structure that is at least partially translucent, a plurality of semiconductor optical elements disposed along the longitudinal direction within the tubular structure, an end cap that blocks at least one end of the tubular structure, and the tubular structure A first engagement portion formed on an outer circumferential surface near an end of the second engagement portion, and a second engagement portion formed on an inner circumferential surface of the end cap and engaged with the first engagement.

Description

Optical semiconductor based tubular lighting device {OPTICAL SEMICONDUCTOR BASED TUBE TYPE LIGHTING APPARATUS}

FIELD OF THE INVENTION The present invention relates to optical semiconductor based tubular lighting devices, and more particularly, to optical semiconductor based tubular lighting devices comprising an improved coupling structure between an end cap and a tubular structure.

Fluorescent and incandescent lamps have been widely used as light sources for illumination. Incandescent lamps have high power consumption and are less efficient and economical, and for this reason, their demand is decreasing. This decline is expected to continue in the future. On the other hand, fluorescent lamps are more efficient and economical at about one-third of the power consumption of incandescent lamps. However, the fluorescent lamp has a problem that the blackening phenomenon proceeds due to a high applied voltage and the lifetime is short. In addition, since the fluorescent lamp uses a vacuum glass tube in which mercury, which is a harmful heavy metal material, is injected together with argon gas, there is a disadvantage of being unfriendly to the environment.

In recent years, the demand for lighting devices based on semiconductor optical devices such as LEDs is rapidly increasing. Semiconductor optical devices, especially LEDs, have long life, low power drive advantages and are environmentally friendly because they do not use environmentally harmful substances such as mercury.

Conventionally, an optical semiconductor-based tubular lighting device including a structure similar to a fluorescent lamp has been developed.

This conventional tubular lighting device comprises an elongated tube structure having a hollow, in which the semiconductor optical elements are arranged in the longitudinal direction. An end cap is coupled to the end of the tubular structure to block the hollow of the tubular structure. In general, an end cap is provided with pin-shaped terminals, and the terminals are electrically connected to a printed circuit board on which semiconductor optical devices are mounted.

In addition, the conventional optical semiconductor based tubular illumination device forms the aforementioned tubular structure by the combination of a heat sink and a transparent plastic cover. Conventionally, in order to couple the end cap to the tubular structure, a screw that is fastened to the heat sink of the tubular structure through the end cap is widely used. However, the end cap fastening structure by the screw has a problem of degrading the assembly of the lighting device, the appearance of the screw due to the presence of the screw.

In addition, the conventional optical semiconductor-based tubular lighting device for connecting the printed circuit board 4 and the terminal in the end cap electrically connected to the terminal of the end cap and the terminal of the printed circuit board by soldering, etc. Complicated and cumbersome work was required.

Accordingly, one problem to be solved by the present invention is to provide an optical semiconductor-based tubular lighting device that can be reliably coupled to the tube structure without a separate fastening mechanism such as a screw.

In addition, another problem to be solved by the present invention is that the end cap can be reliably coupled to the tubular structure without a separate fastening mechanism, such as a screw, only by coupling, the connector terminal and the printed circuit board located in the end cap is electrically connected. It is to provide an optical semiconductor-based tubular lighting device.

According to one aspect of the present invention, an optical semiconductor-based tubular lighting device includes: a tubular structure having at least partially light transmitting property; A plurality of semiconductor optical elements disposed in the tube structure along a longitudinal direction; An end cap coupled to block at least one end of the tubular structure; A first engagement portion formed on an outer circumferential surface near an end of the tubular structure; And a second engagement portion formed in the end cap to engage the first engagement.

According to an embodiment, the first engagement portion may include a plurality of engagement holes formed in the outer circumferential surface of the tubular structure, and the second engagement portion may include a plurality of engagement protrusions formed in the inner circumferential surface of the end cap. The engagement holes may be through holes, alternatively, they may be blocked holes.

According to one embodiment, each of the engaging projections may include a tapered surface that is gradually lowered toward the engagement direction with respect to the tubular structure.

According to one embodiment, the tubular structure includes a heat sink and a translucent plastic cover coupled to the heat sink, wherein at least one of the engagement protrusions may be formed in the translucent plastic cover.

According to one embodiment, the optical semiconductor based tubular lighting device, when inserting and coupling the end cap and the tube structure, the end cap or the tube to the position where the first engagement portion and the second engagement portion mesh with each other. It may further comprise a guide means for guiding the structure.

According to one embodiment, the guide means may include a guide protrusion formed on the inner circumferential surface of the end cap, and a guide groove formed on the outer circumferential surface of the tubular structure.

In example embodiments, a printed circuit board may be mounted on the heat sink, and the plurality of semiconductor optical devices may be mounted on the printed circuit board.

According to one embodiment, the optical semiconductor-based lighting device further comprises a connector provided inside the end cap, the connector is detachably electrically connected to the printed circuit board. The connector is provided with a pair of connection supporting portions formed inside the end cap and one of the connection supporting portions of the pair of connection supporting portions, and a connector having a leaf spring structure defining a connection groove between the other connection supporting portions. And a terminal, wherein the terminal portion on the printed circuit board contacts the contact portion of the connector terminal when the printed circuit board is inserted into the connection groove.

The optical semiconductor based tubular lighting device according to the present invention has the advantage that the tubular structure and the end cap can be reliably coupled to each other without a separate fastening mechanism such as a screw. In addition, the present invention provides the advantage of easy operation of coupling the end cap to the tubular structure.

Further, according to the present invention, since the printed circuit board in the optical structure can be naturally connected to the connector in the end cap only by inserting and coupling the end cap and the tubular structure, the terminal and the printed circuit in the end cap are soldered to the wire. It can alleviate the trouble of the existing lighting device that is electrically connected to the terminals of the board and the complexity of the configuration.

1 is a perspective view showing an optical semiconductor based tubular lighting device according to an embodiment of the present invention.
Figure 2 is an exploded perspective view showing an enlarged end of the optical semiconductor-based tubular lighting device.
3 is a view for explaining a process that the tube structure is inserted and coupled to the end cap.
4 and 5 are cross-sectional views illustrating an optical semiconductor based tubular lighting device according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the embodiments described below, but may be embodied in other forms. In the drawings, the width, length, thickness, and the like of the components may be exaggerated for convenience. Like numbers refer to like elements throughout.

1 is a perspective view showing an optical semiconductor based tubular lighting apparatus according to an embodiment of the present invention.

Referring to FIG. 1, an optical semiconductor based tubular lighting apparatus according to an embodiment of the present invention includes a tubular structure 2 having an elongated hollow, and a plurality of semiconductor lights disposed along a length direction in the tubular structure 2. Element 6.

In addition, the optical semiconductor-based tubular lighting device includes a bar-shaped printed circuit board (4) in the longitudinal direction, the plurality of semiconductor optical elements (6) are mounted on the printed circuit board (4) It is arranged along the longitudinal direction.

The optical semiconductor based tubular lighting device also includes a pair of end caps 3 coupled to both ends of the tubular structure 2 so as to block the hollow of the tubular structure 2 at both ends. The pair of end caps 3 have pin-shaped external connection terminals 31.

The tubular structure 2 includes a heat sink 22 and a translucent plastic cover 24 coupled to the heat sink 22, the upper portion of the heat sink 22 having a lower portion of the translucent plastic cover 24. In combination with the edges, one tube structure 2 is formed.

The heat sink 22 may be formed of a metal material having good thermal conductivity, and may include heat radiating fins on the outer circumferential surface of the heat sink 22 to increase the heat dissipation surface area.

The transparent plastic cover 24 may be formed by a molding process of the transparent plastic resin using a mold. The transparent plastic cover 24 may include a light diffusion pattern on an inner circumferential surface or an outer circumferential surface. In addition, the transparent plastic cover 24 may include remote phosphors.

The printed circuit board 4 is mounted on an upper surface of the heat sink 22. Therefore, the heat sink 22 is generated from the semiconductor optical device 6 and transferred through the printed circuit board 2. It quickly dissipates heat to the outside.

The transparent plastic cover 24 is positioned to cover the semiconductor optical elements 6 to allow light from the semiconductor optical elements 6 to be emitted to the outside.

Figure 2 is an exploded perspective view showing an enlarged end of the optical semiconductor-based tubular lighting device.

Referring to FIG. 2, the heat sink 22 integrally includes a pair of rail-shaped hook portions 221 and 221 formed on an upper surface thereof in parallel with each other and in a longitudinal direction.

The printed circuit board 4 is positioned between the pair of hook portions 221 and 221. Each of the pair of hook portions 221 and 221 has an engaging groove recessed outward.

The translucent plastic cover 24 has a substantially circular cross section, and each of the edge portions 241 and 241 at both ends of the cross section is fitted into and engaged with each of the pair of hook portions 221 and 221.

By the engagement, the heat sink 22 and the translucent plastic cover 24 are fixed to each other. The edge parts 241 and 241 may be slidably fitted to the hook parts 221 and 221, and may elastically deform the transparent plastic cover 24 to expand the gap between the edge parts 241 and 241. In this way, the edge portions 241 and 241 may be inserted into the hook portions 221 and 221.

On the other hand, the optical semiconductor-based tubular lighting device according to the present embodiment, for the reliable coupling between the tube structure 2 and the end cap (3), and a plurality of engagement holes (7) as a first engagement portion And a plurality of engagement protrusions 8 as second engagement portions engaged with the engagement holes 7.

The engaging holes 7 are formed on the outer circumferential surface near the end of the tubular structure 2, and the engaging projections 8 are integrally formed on the inner circumferential surface of the end cap 3.

The engagement of the engagement holes 7 and the engagement projections 8 is achieved by inserting the end of the tubular structure 2 into the end cap 3. At least one elastic deformation of the tubular structure 2 and the end cap 3 is involved during the insertion.

In this embodiment, two engagement holes 7, 7 are formed in the translucent plastic cover 24 of the tube structure 2, and the other two engagement holes 7, 7 are formed in the tube structure 2. Is formed in the heat sink 22.

In addition, four engagement projections 8 are formed on the inner circumferential surface of the end cap 3 so as to correspond to the engagement holes 7. In order to adopt the engagement method between the engagement holes 7 and the engagement projections 8 accompanying the elastic deformation of the tubular structure 2, the only engagement hole (only the light transmitting plastic cover 24 of the tubular structure 2) It may be advantageous to form 7).

On the other hand, each of the engaging projections 8, protruding inward from the inner circumferential surface of the end cap 3, the tapered surface 82 is gradually lowered toward the engagement direction to the pipe structure (2) Include.

This tapered surface 82 prevents the insertion of the tubular structure 2 from interfering with the end cap 3 and the end of the tubular structure 2 being interlocked with the end of the tubular structure 2 by the engagement projection 8. do.

3 is a view for explaining a process that the tube structure is inserted and coupled to the end cap.

Referring to FIG. 3, when the tube structure 2 is moved in the direction of arrow A to insert into the end cap 3 (FIG. 3A), the tube structure 2, in particular a plastic cover Is elastically deformed, and when the tubular structure 2 is fully inserted into the end cap 3, the engaging projection 8 of the end cap 3 is fitted into the engaging hole 7 of the tubular structure 2 to be engaged. do. At this time, the tubular structure 2 is elastically restored to its original state (FIG. 3B). At this time, it may also be considered that the end cap 3 is elastically deformed when the end cap 3 and the tubular structure 8 are inserted and coupled.

4 is a cross-sectional view showing an optical semiconductor based tubular lighting device according to another embodiment of the present invention before the end cap is coupled, and FIG. 5 is an end cap coupled to the optical semiconductor based tubular lighting device shown in FIG. 4. It is sectional drawing shown in the state.

4 and 5, the optical semiconductor based tubular lighting apparatus according to the present embodiment includes a tubular structure 2 composed of a heat sink 22 and a transparent optical cover 24, and the tubular structure 2. ) A bar-shaped printed circuit board 4 mounted on the heat sink 22 and a plurality of semiconductor optical elements mounted so as to be long arrayed on the printed circuit board 4 in the pipe structure 2. 6).

The optical semiconductor based tubular illuminator also comprises an end cap 3 which closes at least one end of the tube structure 2.

As in the previous embodiment, the optical semiconductor based tubular lighting device comprises a plurality of engagement holes 7 as first engagement portions for reliable coupling between the tube structure 2 and the end cap 3, A plurality of engagement protrusions 8 as second engagement portions that engage with the first engagement portion.

The engagement hole 7 and the engagement protrusion 8 may follow the configuration of the previous embodiment as it is.

In the optical semiconductor-based tubular lighting device according to the present embodiment, when the end cap 3 and the tubular structure 2 are inserted into and coupled to each other, the engaging hole 7 and the engaging protrusion 8 are engaged with each other. It further comprises a guide means for guiding the end cap 3 or the tubular structure 2.

In this embodiment, the guide means comprises a guide protrusion 9a formed on the inner circumferential surface of the end cap 3 and a guide groove 9b formed on the outer circumferential surface of the tubular structure 2. The guide protrusion 9a and the guide groove 9b are formed in a straight line shape.

In addition, the optical semiconductor-based tubular lighting device according to the present embodiment further includes a connector 5 installed inside the end cap 3 to which the printed circuit board 4 is detachably electrically connected. The connector 5 comprises a pair of connection supports 52, 54 formed opposite to each other on the inner surface of the end cap 3.

The connector support part 56 connected to the terminal part on the printed circuit board 4 is installed in the connection support part 52 on the upper side of the connection support parts 52 and 54. The connector terminal 56 has a leaf spring structure and is provided on the upper connection support portion 52 and includes a contact portion 562 contacting the terminal portion on the printed circuit board 4. The connector terminal 56 is electrically connected to a pin type external connection terminal 31 protruding from the end cap 3 to the outside of the end cap 3.

The contact portion 562 is formed by a portion of the connector terminal 56 fixed to the upper connection support portion 52 being bent and extended into the gap so that its free end is spaced apart from the upper connection support portion 52. A connection groove 57 is defined between the contact portion 562 and the lower connection support portion 54, and the printed circuit board 4 is inserted into the connection groove 57 together with the upper portion of the heat sink 22. do. In this embodiment, the printed circuit board 4 is inserted into the connecting groove 57 together with the upper plate-shaped portion of the heat sink 22 to which it is mounted, but the printed circuit board 4 is solely connected to the printed circuit board 4. It is also possible to be inserted into the groove 57.

By inserting the printed circuit board 4 into the connection groove 57, the contact portion 562 is elastically deformed toward the upper connection support portion 52 supporting itself. In this case, the force that the contact portion 562 elastically restores biases the printed circuit board 4 with respect to the lower support portion 54. By this deflection, the printed circuit board 4 is firmly held in the connection groove 57.

Although not shown in detail, two connector terminals 56 and 56 having two polarities may be installed in the end cap 3, and the two connector terminals 56 and 56 may have two upper connection supports 52. , 52), or alternatively, may be spaced apart while being commonly installed on one upper connection support 52.

By providing a connector 5 in which the printed circuit board 4 is detachably electrically connected to the inside of the end cap 3, in order to electrically connect the printed circuit board 4 with the terminal in the end cap, Both ends of the end cap (3) and the terminal of the printed circuit board (4) by soldering, etc. can eliminate the work of the existing lighting device and the complexity of the configuration.

At this time, the insertion direction of the end cap or tubular structure in which the printed circuit board 4 and the connector 5 are electrically and physically connected may be engaged with the above-mentioned engagement hole 7 and the engagement protrusion 8. Of course it should be the same as the insertion direction of the end cap or the tubular structure. In addition, a guide means composed of a guide groove 9b and a guide protrusion 9a may be usefully used as described above to induce movement of the end tab or the tubular structure in the insertion direction.

2: tubular structure 3: end cap
4: printed circuit board 6: semiconductor optical device
5: connector 56: connector terminal
7: interlocking hole 8: interlocking projection
9a: guide protrusion 9b: guide groove

Claims (9)

Tubular structures at least partially translucent;
A plurality of semiconductor optical elements disposed in the tube structure along a longitudinal direction;
An end cap coupled to block at least one end of the tubular structure;
A first engagement portion formed on an outer circumferential surface near an end of the tubular structure; And
And a second engagement portion formed in the end cap to engage the first engagement. The method according to claim 1,
The first engagement portion includes a plurality of engagement holes formed in the outer peripheral surface of the tubular structure,
And the second engagement portion includes a plurality of engagement protrusions formed on an inner circumferential surface of the end cap. The method according to claim 2,
And each of the engagement protrusions includes a tapered surface that is gradually lowered toward an engagement direction with respect to the tube structure. The method according to claim 2,
The tubular structure includes a heat sink and a translucent plastic cover coupled to the heat sink, wherein at least one of the engagement protrusions is formed in the translucent plastic cover. The method according to claim 1,
And inserting and coupling the end cap and the tubular structure to guide the end cap or the tubular structure to a position where the first engaging portion and the second engaging portion are engaged with each other. Semiconductor based tubular lighting device. The method according to claim 5,
The guide means is an optical semiconductor-based tubular lighting apparatus comprising a guide protrusion formed on the inner peripheral surface of the end cap, and a guide groove formed on the outer peripheral surface of the tubular structure. The optical semiconductor based tubular illumination device of claim 4, wherein a printed circuit board is mounted on the heat sink, and the plurality of semiconductor optical devices are mounted on the printed circuit board. The method according to any one of claims 1 to 7,
And a connector provided inside the end cap, wherein the printed circuit board is detachably electrically connected. The said connector is provided in one connection support part of a pair of connection support part formed in the inside of the said end cap, and a pair of connection support parts, and defines a connection groove between another connection support part. And a connector terminal having a leaf spring structure, wherein the terminal portion on the printed circuit board contacts the contact portion of the connector terminal when the printed circuit board is inserted into the connection groove.
KR1020110141522A 2011-12-23 2011-12-23 Optical semiconductor based tube type lighting apparatus KR20130073585A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110141522A KR20130073585A (en) 2011-12-23 2011-12-23 Optical semiconductor based tube type lighting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110141522A KR20130073585A (en) 2011-12-23 2011-12-23 Optical semiconductor based tube type lighting apparatus

Publications (1)

Publication Number Publication Date
KR20130073585A true KR20130073585A (en) 2013-07-03

Family

ID=48988008

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110141522A KR20130073585A (en) 2011-12-23 2011-12-23 Optical semiconductor based tube type lighting apparatus

Country Status (1)

Country Link
KR (1) KR20130073585A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200479169Y1 (en) * 2015-04-29 2015-12-29 비케이전자 주식회사 LED lighting apparatus
WO2016108416A1 (en) * 2014-12-31 2016-07-07 서울바이오시스 주식회사 Substrate mounting type led light source apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016108416A1 (en) * 2014-12-31 2016-07-07 서울바이오시스 주식회사 Substrate mounting type led light source apparatus
CN107208843A (en) * 2014-12-31 2017-09-26 首尔伟傲世有限公司 Board mounting type LED light source device
KR200479169Y1 (en) * 2015-04-29 2015-12-29 비케이전자 주식회사 LED lighting apparatus

Similar Documents

Publication Publication Date Title
TWI387126B (en) Led lamp with direct optical coupling in axial arrangement
EP1684000B1 (en) Automotive led bulb
US8419211B2 (en) Lamp tube
WO2013045439A1 (en) Base, round tube housing and lamp including base and round tube housing
JP2010153384A (en) Two component surface-mounting led strip connector and led assembly
KR20090078887A (en) Led lamp
US20100135015A1 (en) Led illumination device
WO2017024940A1 (en) Electrical connection member
JP2011108384A (en) Led lighting device
KR101475888B1 (en) Led lighting apparatus
JP3163443U (en) LED lighting device
US11655972B2 (en) Illumination device with LED strip light engine configured for retrofitting pin-based CFL socket
KR20140029580A (en) Straight pipe type led lighting device
KR101414764B1 (en) Led lamp having terminals connectable to fluorescent lamp socket
WO2014050336A1 (en) Light source device
KR101601390B1 (en) LED Lamp Of Straight Tube Type
KR101309237B1 (en) Tube type led lamp with expandable connecting
TW201337142A (en) Optical semiconductor based illuminating apparatus
JP2012199163A (en) Lighting device and lighting fixture
KR20130073585A (en) Optical semiconductor based tube type lighting apparatus
KR101061218B1 (en) Heat Sink for LED Lighting
TWM503527U (en) Lamp tube
KR20100126064A (en) Iilluminating apparatus using led and method for manufacturing the same
KR101472463B1 (en) LED lighting apparatus
KR20150074568A (en) Linear tube type led lighting device

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination