baber/WOPTO huggingface dataset:
Patent KR-20000050844-A (KR)
Title: Printer
Inventor: CHOI SAM SEOK
IPC: B41J13/076
Filed: 1999-01-15
Abstract: PURPOSE: A printer is provided to quickly and easily release a print paper by improving a structure, discharged when the paper is jammed or stuck by a mis-operation. CONSTITUTION: Upon the generation of a paper stuck or jammed event, a second and a sixth feeding roller(13a,13c) give a certain pressure downward. Herein, the second and sixth feeding roller are installed on an upper part of one way bearings(35a,35c). However, when a user takes out a print paper, the print paper is not torn and is easily discharged by the rotation of the one way bearings. Thereafter, the print papers remaining on a paper supply route are processed onto a normal print route by driving a paper supply roller for transferring the print paper. Accordingly, printing is processed normally.
Patent KR-20000051025-A (KR)
Inventor: HAN CHEOL YEONG
IPC: B41J13/00
Filed: 1999-01-18
Abstract: PURPOSE: A device of transferring a paper for a printer is provided to transfer a print paper without the print paper stuck to a transcription or an installation roller by improving a structure. CONSTITUTION: A print paper is supplied from a paper cartridge in order to print a transcribed image phase on the print paper. The supplied print paper is moved to a certain movement route and is entered a gap with a transmission belt(120) by a first paper guide roller(142). The guided print paper is moved in a state of being absorbed on an outside face of the transmission belt by a static electricity force and passes through a transcription and an installation roller(114,116). The passed print paper is printed by receiving the image phase from the transcription roller. The print paper is transferred in a state of be absorbed on the transmission belt.
Patent KR-19990037794-A (KR)
Title: 에프알피수지관체의분기관성형몰드
Filed: 1999-01-21
Abstract: 본 발명은 분기관을 일체로 제작하면서도 분기관의 연결부를 만곡시킬 수 있는 FRP관체의 분기관 성형몰드에 대한 것이다. 
     본 발명에 따르면, FRP 관체의 분기관 성형용 몰드에 있어서, 메인관(10) 성형을 위한 메인관몰드(20)와, 일측이 상기 메인관몰드(20)의 외주면에 밀착되도록 구성되며 나팔관형태로 외주면이 만곡처리의 라운딩몰드(24)와, 상기 라운딩몰드(24)의 타측의 내경부(25)에 삽입되며 중앙에 볼트관통공(28)이 형성된 분기관몰드(26)로 이루어지며, 상기 분기관몰드(26)의 볼트관통공(28)을 관통한 볼트(29)는 상기 메인관몰드(20)에 나사결합되도록 된 것을 특징으로 하는 FRP 수지관체의 분기관 성형몰드가 제공된다.
Patent KR-20000055202-A (KR)
Inventor: JEON SI MOON
IPC: D06F35/00
Filed: 1999-02-04
Abstract: PURPOSE: A slant-mounted laundry machine having a lower frame is provided to achieve an augmented efficiency of washing action and simplified structure of a washer tub while arranging a lower frame to a bottom surface of the tub. CONSTITUTION: A laundry machine comprises a case(50), a washer tub(60) installed to be inclined at a predetermined angle with respect to a vertical direction within the case(50), a hanger(70) for fixing the washer tub(60) to be hung to the case(50), a lower frame(90) arranged at a bottom surface of the tub(60) and which has a plurality of suspensory members(93,95) radially protruded for fixing a lower end of the hanger(70), and a driving motor(80) installed beneath the washer tub(60) so as to drive an inner tub(65) of the washer tub(60).
Patent KR-19990072563-A (KR)
Title: 균일한배치를가진리던던시메모리셀을채용한반도체메모리장치
IPC: G11C29/04
Filed: 1999-02-10
Abstract: 복수의 버스라인 (RWB0, RWB2,...), 복수의 정상 메모리셀 어레이 (1-0, 1-1,...), 상기 정상 메모리셀 어레이로부터 판독된 데이터를 증폭하는 복수의 정상 데이터 증폭기 (8-0, 8-1,...), 복수의 리던던시 메모리셀 어레이 (2-0, 2-1,...),  및 상기 리던던시 메모리셀 어레이 중의 하나에 각각 연결되어 있고, 상기 리던던시 메모리셀 어레이로부터 판독된 데이터를 증폭하는 리던던시 데이터 증폭기 (10-0, 10-1,..) 를 포함하는 반도체메모리장치에 있어서,  복수의 제 1 버스 셀렉터 (12-0, 12-1,...) 가  상기 정상 데이터 증폭기와 상기 버스라인에 각각 연결되어, 상기 정상 데이터 증폭기와 상기 버스라인을 선택적으로 연결한다.   또한, 복수의 제 2 버스 셀렉터 (11'-0, 11'-1,...) 가 상기 리던던시 데이터 증폭기와 상기 버스라인에 각각 연결되어, 상기 리던던시 데이터 증폭기와 상기 버스라인을 선택적으로 연결한다.
Patent KR-19990072808-A (KR)
Title: 종형ｍｉｓｆｅｔ및그제조방법
IPC: H01L29/78
Filed: 1999-02-20
Abstract: 트렌치 구조를 갖는 종형 MOSFET는 그 온 저항을 증가시키지 않고서 내압 특성이 향상된다.  이러한 종형 MOSFET의 경우, p형 베이스 영역은 n형 반도체 기판 바로 아래에 형성된 트렌치보다도 깊게 되도록 형성된다.  이 영역은 n형 에피택셜층에 인접하고 n형 반도체 기판보다 고농도의 불순물을 갖는다.
Patent KR-20000056452-A (KR)
Inventor: LEE GEUN TAEK
IPC: H01L21/28
Filed: 1999-02-22
Abstract: PURPOSE: A method for forming a copper interconnection layer of a semiconductor device is to prevent the occurrence of the overhang phenomenon during the deposition of the copper interconnection layer. CONSTITUTION: A method for forming a copper interconnection layer of a semiconductor device comprises the steps of: forming an insulating layer(13) having a contact hole on a semiconductor substrate(11); forming a copper seed layer(15) on the insulating layer; thermally annealing the resultant semiconductor substrate to flow the copper seed layer and form the copper seed layer on the bottom and both side walls of the contact hole and the insulating layer; and forming a copper layer(17) on the copper seed layer such that the copper layer fills the contact hole. The copper seed layer is formed by a physical vapor deposition method and the copper layer is formed by an electroplating method.
Patent KR-20000022580-A (KR)
Title: Elevator having governor
Inventor: SASAKI HIROTADA
IPC: B66B5/04
Filed: 1999-02-27
Abstract: PURPOSE: An elevator installed a governor in the optimum position within an elevating route is provided to automatically control the speed of a moving cage. CONSTITUTION: An elevator has a moving cage(8) for elevating in an elevating route(1) and a governor(13) for detecting the speed of the moving cage so as to emergently stop the moving cage, and the governor is fixed by interposing a supporting member on guide rails(5a,9b) installed along with the elevating route. Herein, it is desirable to install a driving device(53) of the moving cage on the guide rail, and the supporting member(18) for supporting the governor has plural fixing points(22,23) fixed on the guide rail. Among these fixing points, a specific point is fixed on the guide rain with a pin shape member(24) penetrating the guide rail, and the other points are fixed on the guide rail with a clip member(25).
Patent KR-19990078423-A (KR)
Title: 심 및 캠의 조합체
IPC: F01L1/14
Filed: 1999-03-30
Abstract: 왕복 기구부에 사용되는 심(5) 및 캠(1)의 조합체에서, 심(5)은 캠(1)의 활주 표면 보다 더 큰 경도를 갖는 재료로 제조되고 심(5)의 활주면은 10 개의 점의 평균 표면 조도가 R Z 0.07-0.2㎛의 표면 조도의 범위에서 다듬질되고, 캠(1)의 활주면은 또한 개구 기공(1b)을 갖추고 있다.  위의 조합체에서, 발생 토크 및 활주부의 마모는 정합 부재와 접촉하는 분사 펌프에 의한 소성 변형과 윤활제등에 혼합된 다양한 불순물에 의한 부식으로 인해 그 표면 조도가 저하되기에 어려운 심 부재를 선택함으로서, 활주면의 유체 윤활을 유지하도록 캠 부재의 표면에 오일막 유지 기능을 제공함으로서 최소화된다.
Patent KR-20000065380-A (KR)
Inventor: OH KEUM SEOK
IPC: B44B1/04
Filed: 1999-04-02
Abstract: PURPOSE: An apparatus for manufacturing imitation of stone sculpture is provided to mass produce stone sculpture by reducing the manufacturing time and produce the stone sculpture enlarged or reduced in comparison with a model at equal quality. CONSTITUTION: An apparatus for manufacturing imitation of stone sculpture includes an imitation supporting plate supporting a loaded rough stone having the same shape with a stone sculpture which to be sculptured and rotating a rough stone on an axis of rotation, an imitation sensing part sensing a contour of a model by sensing rotary radius and a height to the rotary radius with performing up-and-down motion horizontal with the axis of rotation, a rough stone supporting plate supporting the loaded rough stone which to be sculptured and is rotated on the axis of rotation, a cutting part cutting the rough stone by moving a cutting wheel forward and backward like predetermined cutting depth with rotating the rough stone, and a controlling part controlling the cutting part according to the conversion value by converting the measurement of the model sensed by the model sensing part at regular ratio.
Patent KR-20000034837-A (KR)
Inventor: KIM TAK KYU
IPC: C08L71/02
Filed: 1999-04-09
Abstract: PURPOSE: A polyoxymethylene resin composition is provided, which has improved tenacity, heat-stability, workability and impact-resistance. CONSTITUTION: A polyoxymethylene resin composition comprises 50-97 wt% of polyoxymethylene resin; 3-50 wt% of a thermoplastic polyester elastomer, or a mixture of a thermoplastic polyester elastomer and a thermoplastic polyurethane elastomer; 0.1-10 wt% of a copolymer of maleic anhydride; and optionally a lubricant, an antioxidizing agent and a stabilizing agent. Preferably the polyoxymethylene resin is a single polymer of oxymethylene or a copolymer of oxymethylene and oxyethylene; the polyester elastomer is a polyester block copolymer containing the side chain derived from aromatic diacids and short-chained aliphatic diols, and the side chain derived from aromatic diacids and long-chained diols; and the copolymer of maleic anhydride is a polyolefin elastomer or a copolymer of styrene and maleic anhydride.
Patent KR-20000067187-A (KR)
Inventor: KIM SEONG HWAN
IPC: A61Q1/00
Filed: 1999-04-24
Abstract: PURPOSE: A cosmetic material containing Moutan Cortex extract is provided, which shows good removing effect of free-radicals, anti-oxidant effect, whitening effect, and does not gives any problem in safety. CONSTITUTION: A process for the preparation of cosmetic material containing Moutan Cortex extract comprises of: drying the Moutan Cortex completely; adding more than one of solvent selected from a group consisting of water, ethanol, methanol, propanol, butanol, acetone, ethylacetate, hexane, benzene, chloroform, glycerin, ethyleneglycol, and propyleneglycol, and extracting by heating at 50-95°C for 4-20hrs or soaling for 1-15days, at 5-37°C; filtering with Wattman no.2 filter sheath; concentrating under decompression with a refrigerating condenser-attached distiller at 60°C to get the dried Moutan Cortex extract 105g(dried weight). The cosmetic material contains the Moutan Cortex extract 0.001-10wt.%, desirably 0.001-5wt.%.
Patent KR-20010001147-A (KR)
Inventor: HWANG YU SANG
IPC: H01L27/10
Filed: 1999-06-02
Abstract: PURPOSE: A method for manufacturing a capacitor is provided to simultaneously expose a contact pad and to form a plate electrode and an opening for a storage electrode, by performing only one etching process. CONSTITUTION: The second insulating layer(214) is evaporated on a semiconductor substrate on which the first insulating layer(210) having a contact pad(212) is formed. A bit line(216) is formed on the second insulating layer. A bit line spacer(220) is formed on both sidewalls of the bit line. A silicon nitride layer and the third insulating layer are sequentially evaporated on the entire surface of the substrate. The third insulating layer is etched by a photo process to separate a cell region and a peripheral region. The silicon nitride layer in the cell region is eliminated. The first conductive layer for a plate electrode and the fourth insulating layer are sequentially evaporated on the entire surface. The fourth insulating layer, the first conductive layer and the second insulating layer are etched to form an opening by a photo process to expose the contact pad. A dielectric layer and the second conductive layer for protecting the dielectric layer are evaporated on an inner wall of the opening. The dielectric layer and the second conductive layer are etched for planarization. The third conductive layer for a storage electrode is evaporated. The third conductive layer is etched for planarization to expose the fourth insulating layer.
Patent KR-20010004525-A (KR)
Title: Reflective liquid crystal display device
Inventor: HONG SEUNG HO
IPC: G02F1/1343
Filed: 1999-06-29
Abstract: PURPOSE: A reflective liquid crystal display device is provided to achieve the reflective action without an additive optical component, and to improve the transmissivity by allowing the light transmittance via an upper surface of an electrode. CONSTITUTION: A reflective liquid crystal display device consists of a first substrate, a second substrate, and a liquid crystal layer including many liquid crystal molecules with interposed between the substrates. A counter electrode and a pixel electrode which are actuating the liquid crystal molecules are disposed on an inner surface of the first substrate. The counter electrode and the pixel electrode form a fringe electric field to actuate the liquid crystal molecules to be positioned on the top of the electrodes. A polarization plate having a polarization axis is disposed on an outer surface of the second substrate. A reflection plate is disposed on an outer surface of the first substrate. A first and a second orientation film having a certain rubbing axis are disposed on inner surfaces of the substrates respectively. An angular difference between the rubbing axis of the second orientation film and the fringe electric field is 85deg. and less if a permittivity anisotropy is a positive liquid crystal, and is 5deg. and more if the permittivity anisotropy is a negative liquid crystal.
Patent KR-19990073281-A (KR)
Title: 전기자동차의자가발전장치
IPC: B60L8/00
Filed: 1999-06-29
Abstract: 전기자동차의 자가 발전장치에 관한 것으로서, 차량이 일정속도 이상 주행시 주행가속도가 발생할때 자동적으로 고속용 발전기(G)(G')또는 저속용발전기 (Ga)(Ga')중 어느 한쌍의 소형 회전륜(12)(12')또는(12a)(12a')중 어느 한쌍이 회전륜(6)(6')에 맞물려서, 차량의 주행에 따른 차량후륜(1)(1')의 회전속도에 따라 그것과 연결된 베벨기어 (4)(4')의 방향전환축(5)(5')에 각각 장착된 회전륜 (6)(6')을 회전시킴과 동시에 그것과 맞물린 상기 소형회전륜들을 회전시키므로서 발전기에서 발전이 되도록하여 밧데리(13) (13')에 발전된 전력이 충전되면서 모터(14)(14')를 작동시켜 그 모터에 의하여 차량을 운행하게 하는 것으로서 차량운행속도만큼 항상 자가발전이 되어 별도로 인위적으로 충전할 필요없이 차량을 연속적으로 운행할 수 있는 특징이 있으며 이로인해 환경공해가 없고 연료가 절감되며 충전에 따른 시간낭비가 없는 장점이 있는 것이다.
Patent KR-20010005274-A (KR)
Inventor: LEE GWANG HYEON
IPC: H01Q1/18
Filed: 1999-06-30
Abstract: PURPOSE: An antenna fixing apparatus is provided to be easy to install an antenna for a subscriber of a radio subscriber network system and to exchange parts at applying. CONSTITUTION: An antenna fixing apparatus comprises a fixing bracket(13) which is connected to a rear surface of a main case(12). A hinge bracket(15) includes the first hinge member(17) and the second hinge member. The first hinge member(17) is connected with the fixing bracket(13) via a fixing tap(16), and the hinge bracket(15) is formed on an XZ plane with the fixing tap(16) in the center. The second hinge member is projected on a vertical surface with regard to the first hinge member(17). A shift hinge bar(19) selects a connection place with the hinge bracket(15) in an X direction, and is formed on an XY plane with a fixing hole so as to be shifted. A hanger bracket(25) has an upper member having a fixing hole(14C), coupled with a guide groove(21), and a wall member projected on a vertical surface with regard to the upper member.
Patent KR-19990073377-A (KR)
Filed: 1999-07-07
Abstract: 본 발명은 환형코어를 갖는 3상 변압기로서, 3개의 절연된 환형코어와, 상기 3개의 환형코어의 각각의 표면에 감긴 권선으로 이루어지고, 상기 3개의 환형코어의 권선에서 인출된 중립선단자, 3개의 입력단자 및 3개의 출력단자를 구비한다. 따라서, 가벼우면서도, 부피가 작으며, 불필요한 무부하 전력손실이 감소하며, 단층권선이므로 환형코어의 절연이 쉽게 파괴되지 않는 장점을 얻을 수 있다.
Patent KR-20010009558-A (KR)
Inventor: KIM WON HO
IPC: H05B6/68
Filed: 1999-07-12
Abstract: PURPOSE: A defrosting method of microwave oven is provided to defrost the food with a high accuracy regardless of the frozen state of food or the presence of container. CONSTITUTION: A method comprises the first step of detecting an initial value of an infrared sensor for sensing the surface temperature of the food to be defrosted; the second step of setting an end value in accordance with the initial value detected in the first step; and the third step of periodically detecting current value of the infrared sensor and ending the defrost operation when the current value reaches the end value. The first step further comprises the step of detecting an output value of the infrared sensor at a predetermined interval while the rotation tray with food rotates for a predetermined time period; and setting the lowest value as the initial value from among detected output values. The third step further comprises the steps of dividing the range between the initial value and the end value into at least two sections where power% of magnetron is set as different, in accordance with the initial value of the infrared sensor detected in the first step; detecting periodically current value of the infrared sensor; comparing the detected current value and the end value and ending the defrost operation when the current value is equal to or higher than the end value; determining to which section the current value falls when the current value is lower than the end value; and controlling power% of the magnetron into that of the section to which the current value falls.
Patent KR-20000017292-A (KR)
Inventor: MITSUSAWA
IPC: B24C1/04
Filed: 1999-08-13
Abstract: PURPOSE: A photosensitive film stack body for sandblast is provided to achieve excellent alkali development, sensitivity, adhesiveness to a substrate, elasticity and softness after patterning, and sandblasting endurance, and be suitable for formation of a precise metal pattern or an insulating pattern. CONSTITUTION: The body comprises photo-polymerized urethane (meth)achrylate oligomer having two and more archryloil groups and/or a methachryloil group, a soluble chemical compound, and a photo-polymerized initializer. Examples of the compound are hydroxyprofyl cellulose, ethylhydroxyethyl cellulose, hydroxyprofylmethyl cellulose phtalate, and hydroxyprofilmethyl cellulose acetate phtalate.
Patent KR-20010018299-A (KR)
Inventor: JUN SI MUN
IPC: D06F17/04
Filed: 1999-08-18
Abstract: PURPOSE: A washing machine having a circulation exhaust washing function is provided to facilitate circulation exhaust washing and centrifugal penetrating washing, so that washing force is enhanced. CONSTITUTION: A washing machine having a circulation exhaust washing function comprises; a case(50) of a washing machine having a door(55) in the upper part; a washtub(60) placed in the inside of the case to be slopping at regular angle(Θ); four hanger members(57) of which the upper end part is fixed in the case to slope the washtub in the case while the lower end part is fixed in the washtub; a driving motor(75) installed in the lower side of the washtub to drive an inner tub(65) of the washtub; a circulation exhaust device connected in the bottom of the washtub toward the upper side, and circulating water in the washtub toward the upper side of the washtub forcibly; and a tub cover(62) fixed in upper part of the washtub, connected to the circulation exhaust device, and having a nozzle(62b) and a passage(62a) to exhaust the wash water in the washtub. The washtub having an inner tub(65) and an outer tub(61) slopes at regular angle(Θ).
Patent KR-20010019507-A (KR)
Title: Heat sink for microwave oven
Inventor: CHO YONG JIN
IPC: F24C15/34
Filed: 1999-08-27
Abstract: PURPOSE: A heat sink of a microwave oven is provided to radiate heat from IGBT(insulated gate bipolar transistor) fixed on the heat sink efficiently. CONSTITUTION: An IGBT(insulated gate bipolar transistor)(24) element is installed in a heat sink(20), plural radiating fins(20a,20b) are mounted in the both sides of the heat sink, and plural radiating fins(20c) are installed on the upper face of the heat sink. The heat sink is exposed to the airflow considerably and the actual radiation efficiency is increased in forming the airflow by a cooling fan in an electric component chamber of a microwave oven.
Patent KR-20010019800-A (KR)
Title: Speed-change feeder of grey yarn for fiber machine
Inventor: YOO JAE POONG
IPC: D04B15/38
Filed: 1999-08-30
Abstract: PURPOSE: Provided is a speed-change feeder of a grey yarn for a fiber machine feeding satisfactorily a rayon yarn, a hard twisted yarn and so on having zero of elasticity. CONSTITUTION: The feeder is characterized by: an intelligent drum(230) connected to a combined disk; an energy transfer device factor connected to the intelligent drum with a bearing device or a shaft factor; a grey yarn(15s) transferred and storing to a disk(21); the disk(21) moved by the grey yarn(15s) to stop operation of the intelligent drum(230); the disk moved by delivery of the stored grey yarn(15s) to store the grey yarn(15s); and devices(25,25b) transferring rotational energy to the disk additionally. By the devices, the feeder can supply the grey yarn free and variously.
Patent KR-20010027106-A (KR)
Inventor: JUN DO HAK
IPC: C25D5/00
Filed: 1999-09-10
Abstract: PURPOSE: A method and an apparatus for plating a reed of a crystal unit base are provided to decrease defect ratio and improve soldering performance and working environment by plating a reed using the electroplating method. CONSTITUTION: The method for plating a reed of a crystal unit base (40) comprises the processes of tying a metal net (20) so that the metal net is contacted with an electroplating solution (12) after inserting reeds into the metal net (20) so that they penetrate toward lower side of the metal net (20) by arranging an electroless nickel plated crystal unit base on a dielectric net (30) laid on the metal net (20) which can be hung on upper part of an electroplating vessel (10), and electroplating reeds by impressing a positive power to an anode plate (11) of the electroplating vessel (10) and a negative power to the metal net (20), and vibrating the metal net so that reeds and the metal net (20) are conducted.
Patent KR-20000000176-A (KR)
Inventor: LEE HEE PYUNG
IPC: A45D29/02
Filed: 1999-09-28
Abstract: PURPOSE: A nail clipper is provided to prevent the arsenic acid of the clipped fingernails and toenails and to be easily changed and collected. CONSTITUTION: A nail clipper comprises:a body(4) formed by a spot welding of the back part of an upper board(4a) and a lower board(4b); a lever(2) having a rotary support shaft(17) installed on the front end and installed by a rotary material; a pile(3) installed by a rotary material on the back part of the body; and a stopper(5) formed to be curved vertically to the lower board.
Patent KR-20000029243-A (KR)
Inventor: NAGAO MASHARU
IPC: G01C19/5719
Filed: 1999-10-22
Abstract: PURPOSE: An apparatus for detecting angular velocity is provided to minimize a detectable error by reducing influences of manufacturing variation, non-linear character of a beam, and vibration by Coriolis' force of a vibrator. CONSTITUTION: A vibrator(20) connected by beams(33-1,33-2,33-3-33-4) and main frames(30-1,30-2) are installed spacing from an upper surface of a substrate(10). The vibrator(20) and the main frames(30-1,30-2) are driven by driving electrode parts(51-1,51-2,51-3,51-4) in a direction of the x-axis. The vibrator(20) vibrates by angular velocity of the z-axis rotation at right angles to both x, y-axis. Angular velocity is detected by measuring the vibration of the y-axis direction using a high frequency signal granted to detecting electrode part(53-1,53-2,53-3,53-4). The driving electrode parts(51-1,51-2,51-3,51-4) is respectively installed the main frame(30-1,30-2) divided in the direction of the y-axis and have independent driving signal so that the main frame(30-1,30-2) are accurately driven.
Patent KR-20010038270-A (KR)
Inventor: YANG KYUNG HO
IPC: A47F5/10
Filed: 1999-10-23
Abstract: PURPOSE: A prefabricated display stand is provided to facilitate the assembling work of frames, and display heavy articles as well as a large stock of goods stably by enhancing the strength of connection. CONSTITUTION: A display stand comprises a frame(1), a connecting plate(11), circular columns(12), inserting grooves(13), and several connecting members(4a,4b). The frame with a narrow width and a long length is cut according to standards. In the connecting plate, several holes(14) are formed at the center at regular intervals. The circular columns are united with both ends of the connecting plate, and the inside is empty to form a hollow part(15). The inserting grooves are formed in both columns to face each other. When connection ends(42) of two connection members are inserted in both sides of the connecting plate, both edges are inserted in the inserting groove of the column. The connection members make the frames assembled in T or angled shape.