baber/WOPTO huggingface dataset:
Patent KR-20000050464-A (KR)
Inventor: LEE CHANG EON
IPC: A61K8/29
Filed: 1999-01-09
Abstract: PURPOSE: A powder type of functional cosmetics composition improves stability of functional ingredients, which are destroyed by heat, light, water and air, by properly mixing effective ingredients with functional ingredients in large quantities. Normally stable powder type of the composition is melted into liquid phase, while being used without loss of functional ingredients. CONSTITUTION: A composition of functional cosmetics comprises: 1-15 wt% of silica sylate; 0.01-20 wt% of oxides selected from the group comprising iron oxide, titanium oxide and combination thereof; 50-90 wt% of solvent which is characterized by a mixture of glycerine, diglycerine, triglycerine, propylenglycerine, 1,3-butylenglycol, hexylengylcol, sorbitol, pantenol, trehalose and water ; and 1-15 wt% of functional ingredient which is characterized by mixing placenta, albutin, resitin, vitamin C, and retinol, wherein the parts by weight ratio of the mixture of the silica sylate and the oxides and the solvent ranges from 1:3 to 1:15 based on the composition.
Patent KR-19990046297-A (KR)
Title: 관의연결장치
IPC: F16L19/065
Filed: 1999-02-04
Abstract: 본 발명은 관을 연결하기 위한 관의 연결장치에 관한 것이다.  본 발명에 따른 관의 연결장치는 제1 연결부재와 삽입부재와 제2 연결부재를 구비한다.  제1 연결부재는 삽입공과 제1 결합부를 갖는다.  삽입공은 제1 내면부와 제2 내면부를 갖는다.  삽입부재는 통로구멍과 외주에 형성된 경사면을 갖는다.  이 경사면의 경사는 제2 내면부의 경사보다 작다.  제2 연결부재는 통로구멍과 제2 결합부를 가지며, 제1 결합부 및 제2 결합부가 서로 결합된다.
Patent KR-20000059764-A (KR)
Inventor: KIM IN GI
IPC: C09D175/16
Filed: 1999-03-08
Abstract: PURPOSE: An ultraviolet hardened resin composition is provided which uses a proper amount of oligomer B to attain ribbon coating resin with high young modulus and high extension modulus. CONSTITUTION: The ultraviolet hardened resin composition comprises the components of: 30-80wt% of a compound wherein polyurethane (meta)acrylate oligomer A synthesized from polyether class polyol, diisocyanate compound and (meta)acrylate compound with hydroxide radical and polyurethane (meta)acrylate oligomer B synthesized from polyether class polyol, diisocyanate compound, single molecule diol and acryl monomer with hydroxide radical are mixed; 20-60wt% of reactive monomer diluent including more than 1 acryloil radicals; and 0.5-10wt% of more than 1 light initiators wherein initiation is done by ultraviolet.
Patent KR-19990046523-A (KR)
Title: 모서리가둥근형인종이표지와그제작방법
Filed: 1999-03-25
Abstract: 본 발명은 모서리가 둥근형인 종이 표지와 그 제작 방법에 관한 것으로서, 두꺼운 종이의 외면에 얇고 고운 종이가 덮 포장 된 종이 표지에 있어서, 상기 두꺼운 종이는 그 모서리 부분이 둥근 모양으로 형성되고, 상기 고운 종이는 상기 두꺼운 종이의 모서리 모양이 둥근 모양으로 유지되도록 안쪽으로 접혀져 덮 포장되고; 
     이와 같은 종이 표지 제작 방법은 모서리가 둥근 모양으로 된 두꺼운 종이를 모서리가 경사지게 잘려진 고운 종이 위에 부착하는 단계와; 상기 고운 종이의 모서리 부분을 상기 두꺼운 종이의 둥근 모서리에 밀착시키면서 내측 방향으로 접어서 부착하는 단계와; 상기 고운 종이의 양측면 또는 상하면을 차례로 두꺼운 종이 안쪽으로 접어 부착하여 표지의 모서리 부분이 둥근 모양이 되도록 하는 단계로 이루어짐으로써, 책자의 외부 미관을 향상시킬 수 있고, 특히 어린이용 책자 등 적용될 경우 날카로운 모서리로 인하여 다칠 수 있는 위험을 제거할 수 있는 효과가 있다.
Patent KR-20000066489-A (KR)
Title: Beam clamp
Inventor: PARK JEONG JIN
IPC: F16B7/18
Filed: 1999-04-16
Abstract: PURPOSE: A beam clamp is provided to strongly connect and easily disjoint the beam clamp with efficiently protecting beam basic materials. CONSTITUTION: A beam clamp includes a main clamp(1) protruding a plurality of protrusion parts(12) having perforated bolts(13) hole in the vertical part at same intervals and a combined outlet hole and support plate hole in a horizontal part(11), and an assistant clamp(2) making a flange rack(22) by bending the one part of the assistant clamp at right angles in plane direction and having as many protrusion holes(23) as the protrusion parts perforated at the same pitch with the protrusion parts in the edge of the plate plane in width direction.
Patent KR-20000067105-A (KR)
Inventor: KIM NAM JEONG
IPC: A23K1/14
Filed: 1999-04-23
Abstract: PURPOSE: A provender composition for Agrius convolvuli and method breeding Agrius convolvuli using it is provided by using powdered sweet potato and powdered pasture which improves the emergence rate of Agrius convolvuli compared to using powdered sweet potato leaves as a main ingredient. CONSTITUTION: A provender composition for Agrius convolvuli comprises powdered sweet potato 7-10wt%, powdered pasture 7-10wt%, powdered cellulose 25-34t%, carrageenan 8.0-12.0wt%, bean oil 1-3wt%, powdered skim soybean 20-25wt%, sucrose 8-12wt%, β -Sitosterol 0.15-0.4wt%, and/or additive 7.5-10.0wt%. Method for breeding Agrius convolvuli comprises the following steps: (i) A first step to collect the egg of Agrius convolvuli, and obtain larvae(1-3 ridge) in chalets; (ii) A second step to arrange the larvae per 3cm¬2 in a box which has net in the bottom and breed them; (iii) A third step to arrange the larvae(4 ridge) per 6cm¬2 to obtain 5 ridge larvae; (iv) A fourth step to arrange the larvae(5 ridge) per 18.7cm¬2 in a bread bow where brushwood is spread, and remove the excrement a day; (v) A fifth step to remove the brushwood, and spread toilet roll to obtain pupas; (vi) A sixth step to separate male and female and keep them in a container; (vii) A seventh step to when the color of their body change into black, put them at a ratio of male and female being 1:1 in a spawning ground, and make them emerge; and (viii) An eight step to induce the imagines to copulate. The perspective steps are conducted in a condition of 25-28°C, relative humidity 60-75%, and long light of 16L/8D. The prepared provender is supplied from first to fifth step at any time.
Patent KR-20000049306-A (KR)
Inventor: DO GEE WON
IPC: G09B1/00
Filed: 1999-05-26
Abstract: PURPOSE: A learning workbook and learning method using the same are provided to allow normal children as well as abnormal children to learn letter easily and maximize learning effect and also to allow the abnormal children to recognize number exactly and easily so as to develop their ability of calculation. CONSTITUTION: In a learning workbook and learning method using the same, the learning workbook is comprised of a sheet portion(1) constituting a base; a figure portion(7) provided on a proper portion of the sheet portion(1) to show any figures(5) corresponding to the meanings of various letters required to study for a learner; and an explanation portion(9) provided on the other portion of the sheet portion(1) to explain various letters corresponding to the meanings of the figures(5) in a type of sentence so as to allow an abnormal children as well to easily understand and learn the exact meanings of the respective figures presented on the figure portion(7).
Patent KR-20000074938-A (KR)
Inventor: SIM GYU HWAN
IPC: H04B1/40
Filed: 1999-05-27
Abstract: PURPOSE: A device for driving a key pad is provided to display selectable buttons in a device having menu performances, so as to easily use the key path driving device. CONSTITUTION: A light emitting diode(LED) driving register(10) translates key inputs to supply a translated result to a menu processing circuit(12). The menu processing circuit performs a menu for the key inputs in a key input processing circuit(10). A memory(14) stores a menu/button map table for displaying usable buttons and receives step information supplied from the menu processing circuit, to generate select signals determining the buttons. The LED driving register drives to light on a LED. The LED is combined with buttons determined by the select signals. For example, if a user presses a button of a key pad in a telephone, an inputting circuit(10) decides that the pressed button is either a button for a phone number inputting or a function button for a menu selecting. If the button is the function button, the inputting circuit supplies the function button to the menu processing circuit. The menu processing circuit performs determined operation by the function button. When the menu performance are required for selective inputs, the menu processing circuit supplies the step information to the memory. The memory outputs a selective signal, which determines the selectable buttons corresponding to the step information. The LED driving register drives to light on corresponding LEDs in a key pad LED set(18) according to the select signals from the memory.
Patent KR-20010001289-A (KR)
Inventor: CHO HUI BOK
IPC: H04B7/26
Filed: 1999-06-03
Abstract: PURPOSE: A method for testing hand-off in a radio network controller(RNC) of a wideband wireless mobile system, is provided to use a base station(BS) simulator and a mobile switching center(MSC) simulator without physically linking the RNC to the BS and the MSC. CONSTITUTION: A source base station(BS) simulator generates a pilot signal intensity measure message based on sub data and a hand-off instruction necessary for performing the hand-off, and transmits the generated message to a radio network controller(RNC). The RNC allocates channels of a target BS simulator and generates a hand-off request signal, to transmit the hand-off request signal to the target BS simulator. The target BS simulator transmits a hand-off request receiving message in reply to the hand-off request message to the RNC. The RNC generates a hand-off indication message to transmit the hand-off indication message to the source BS simulator. The source BS simulator performs hand-off based on the hand-off indication message, and generates a hand-off completion message to transmit the hand-off completion message to the RNC. When exceeding a preset time, the source BS simulator and the target BS simulator generates a pilot signal intensity measure message to transmit the pilot signal intensity measure message to the RNC. The RNC generates a hand-off indication message to transmit the hand-off indication message to the target BS simulator. The target BS simulator performs hand-off based on the hand-off indication message, and transmits a hand-off completion message to the RNC. The RNC generates a message notifying the performance of hand-off based on the hand-off completion message of the target BS simulator, to transmit the message to a mobile switching center(MSC) simulator. The RNC generates a hand-off release message for releasing channels with the source BS, and transmits the hand-off release message to the source BS.
Patent KR-20000011295-A (KR)
Inventor: WAN SHING JEN
IPC: H01L21/336
Filed: 1999-06-14
Abstract: PURPOSE: A doped short-channel device is provided to have a channel length shorter than 0.05 micrometer, and to maintain a threshold voltage to be able to accept. CONSTITUTION: A MOSFET device has a gate(10), a gate oxide layer(11), a source area(12) and a drain area(13). When the size of the MOSFET is reduced, the size of the oxide thickness(11) and a joining depth(15) is able to be desirably reduced, and a depletion area(16) is able to be effectively reduced by increasing a substrate doping. A hollow injecting unit(20) is; used to control a short channel effect when a channel length is reduced to 0.1 micrometer; a ring-shaped structure located between the source(12) and the drain(13) downward the oxide layer(11); to reduce the short channel effect by surrounding a source-drain extending unit not to infiltrate an electric force line.
Patent KR-19990068740-A (KR)
Title: 스피커캐비넷구조
Filed: 1999-06-16
Abstract: 본 발명은 특정 주파수대역에서 출력이 대폭 증대될 수 있는 새로운 스피커 캐비넷 구조에 관한 것이다 
     본 발명에 따르면, 스피커유닛(12)이 구비되는 스피커 캐비넷(10)에 있어서,캐비넷(10)의 후방에서 전방을 향해 점점 확장되는 중앙개방부(2)와 상기 중앙개방부(2)의 양측에 배치되는 한쌍의 폐쇄부(4)를 구획하도록 경사지게 배치된 한쌍의 경사판(6)과, 상기 경사판(6)에 각각 장착되어 상기 중앙개방부(2)를 향하도록 대향배치되는 한쌍의 스피커유닛(12)과, 상기 경사판(6)의 후단에서 횡방향으로 연장되며 상기 폐쇄부(4)와 중앙개방부(2) 사이에 음파의 통로를 구성하는 웨이브덕트(8)와, 상기 웨이브덕트(8)와 상기 중앙개방부(2)를 연통시키도록 상기 중앙개방부(2)에 면한 웨이브덕트(8) 부위에 형성된 개구부(9)를 포함하는 것을 특징으로 하는 스피커 캐비넷 구조가 제공된다.
Patent KR-19990073392-A (KR)
Title: 콘크리트믹서트럭및레미콘제조방법
IPC: B60P3/16
Filed: 1999-07-08
Abstract: 본 발명은 콘크리트 믹서트럭 및 레미콘 제조방법에 관한 것으로, 특히 차체프레임(1)의 상부에 설치된 믹서드럼(2-1)에 레미콘을 담아 믹싱하는 콘크리트 믹서트럭에 있어서, 상기 차체프레임(1)의 전방측에 설치되어 펌프(16)에 의해 상기 믹서드럼(2-1)에 물을 공급하는 물탱크(15)와; 상기 차체프레임(1)의 고정베이스(7)에 링크핀(10)을 중심으로 회전되도록 결합되면서 모터(3-1)에 의해 상기 믹서드럼(2-1)을 회전시키는 감속기(9-1)와; 상기 차체프레임(1)의 고정프레임(23)에 상하강프레임(21)이 실린더(22)에 의해 상하이동되도록 결합되고, 상하강프레임(21)의 상면에 가이드롤러(4-1)가 상기 믹서드럼(2-1)의 후방측 하부를 지지하도록 설치되며, 고정밴드(8-1)가 상하강프레임(21)의 하강시 믹서드럼(2-1)의 후방측 외주면에 밀착되는 상하강구동부(35)와; 상기 상하강프레임(21)의 고정프레임(29)에 호퍼(5-1)가 믹서드럼(2-1)의 입구와 연결되도록 고정대(28)에 의해 고정되고, 호퍼(5-1)의 하부에 위치하는 드럼커버(27)는 상기 고정프레임(29)의 실린더(26)에 의해 믹서드럼(2-1)의 입구를 개폐하도록 설치되며, 상기 드럼커버(27)의 하부에 스쿠프(31)와 슈트(36)가 고정 설치되는 레미콘투입 및 배출부(36)로 구성되는 것을 특징으로 하는 콘크리트 믹서트럭에 관한 것이다. 
     또한, 본 발명은 레미콘생산공장에서 콘크리트 믹서트럭의 믹서드럼(2-1)에 담아 원거리의 건설현장에 공급되는 레미콘을 제조하는 레미콘 제조방법에 있어서, 레미콘생산공장에서 상기 콘크리트 믹서트럭의 믹서드럼(2-1)에 건식레미콘을 담아 혼합한 상태로 원거리의 건설현장으로 운반하는 단계와; 원거리의 건설현장에서 펌프(16)를 이용하여 물탱크(15)의 물을 상기 믹서드럼(2-1)에 공급하여 건식레미콘을 습식레미콘으로 제조하는 것을 특징으로 하는 레미콘 제조방법에 관한 것이다.
Patent KR-20010009339-A (KR)
Inventor: KIM JAE YEONG
IPC: C07C69/753
Filed: 1999-07-09
Abstract: PURPOSE: A novel carboxylic acid derivatives for improving the antietching property of pattern profiles of a resist containing conventional carboxylic acid derivatives as a main component or an additive and capable of being easily decomposed by an acid as compared to conventional t-butyl ester compounds and insoluble in a basic aqueous solution and process for preparation thereof are provided which can improve pattern profiles of a resist by improving a residual film rate and acting as a melting inhibitor at an unexposure section and acting as a melting accelerator at an exposure section. CONSTITUTION: The novel carboxylic acid derivatives represented by the following formula I are prepared by reaction of one or more compounds selected from halogen compounds of the formula: R1-CHX2 and one or more compounds selected from carboxylic compounds of the formula: R2-H in the presence of a basic catalyst at -80 to 150deg.C for 0.5 to 15 hr. In formula, R1 is H, C1-20 linear, branched or cyclic alkyl or alkoxy, R2 is C1-40 nonsubstititued carbon atoms in a linear, branched or cyclic carboxyl.
Patent KR-20010010958-A (KR)
Inventor: KWON GI JIN
IPC: H01J29/04
Filed: 1999-07-23
Abstract: PURPOSE: A cathode for a CRT and a producing method thereof are provided to improve current density through improving reductive agent, to improve attachment through forming an unevenness unit by surface treatment, and to improve productivity through oxidation reduction while processing a base metal. CONSTITUTION: After oxidizing a base metal(23), reduction is performed to form fine porosity on surface of the metal. Therefore, attachment of the base metal with a coating layer of an electron emitting material is improved while increasing lifespan of a cathode. A reductive agent powder(24) is filled on surface of the metal. Herein, the reductive agent such as W, Ta, Mo, Ti of under 1 micrometer is placed on a grinder(30) to press while grinding. Thus, the powder is filled in the fine porosity on the base metal.
Patent KR-20000017088-A (KR)
Inventor: BEEALL DOWGLASS MOONROY
IPC: B01J32/00
Filed: 1999-08-04
Abstract: PURPOSE: A plastic raw material mixture for the use of manufacturing substrates having a primary phase cordierite with a mixture of MgO, Al2O3 and SiO2 and method for producing a green body substrate of cordierite-forming materials containing a manufacturing stage of the plastic raw material mixture are provided which enable the green body formed in a batch mixture to have improved resistance to a crack formation of a honeycomb in sintering. CONSTITUTION: A plastic mixture is disclosed for the use of manufacturing substrates which have a primary phase cordierite, contain at least one source of (a)one source of Al2O3 and SiO2 containing a clay mixture comprising below 22 wt.% of plastic clay in a plasticizable admixture based on the total weight of raw material with a residual source containing a silica-forming precursor and an alumina-forming precursor containing alumina having a mean particle diameter of below 1 micrometer and (b)one source of magnesia having a mean particle diameter of 1-15 micron and have a chemical composition of 11-17 wt.% of MgO, 33-41 wt.% of Al2O3 and 46-53 wt.% of SiO2. And a method is also disclosed for making a green body substrate of cordierite-forming materials containing a manufacturing stage of plastic raw materials of the above composition for forming the substrate of desirable structure by adding an organic binder system to the mixture and extrusion-molding.
Patent KR-20010018243-A (KR)
Inventor: LEE GANG BOK
IPC: G06F9/34
Filed: 1999-08-18
Abstract: PURPOSE: A method for mapping register of a micro processor is provided to enhance of an operation speed by minimizing the difference of capacitance values in each bit of a data bus in accordance with identifying the number of registers connected to each bit of all internal data buses when a register of micro processor is mapped, thereby adapting design area of an actuator and power consumption suitably. CONSTITUTION: A register(110¯125) outputs data through a system bus(100) and a 32 bits data bus(D<31:0>). The register(110, 111, 120, 121, 122) consist of 32 bits register inputting and outputting 32 bits data by an input/output unit controlled by a micro processor through data buses(D<31:0>). The register(112)(113)(115)(116)(117)(118) consist of 16 bits register adding two registers(112,113) (115,116) (117,118) for inputting/outputting data through data buses(D<31:0>). The 16 bits register outputs each 16 bits data to the system bus(100) through input and output units(130)(131) enabled by read and write enable signals(RDEN1, RDEN2) (WDEN1, WDEN2) from the micro processor and data buses(D<15:0>)(D <31:16>). In addition, the 16 bits register receives and outputs 16 bits data of the system bus(100). The register(114)(119)(123)(124) consist of 8 bits register adding four registers(114)(119)(123)(124) for inputting/outputting data through data buses(D<31:0>). The 8 bits register receives and outputs each 8 bits data to the system bus(100) through the input and output units enabled by data buses(D<7:0>)(D <D<15:8>)(D<23:16>)(D<31:24>) and the micro processor.
Patent KR-20010018803-A (KR)
Inventor: KIM YEONG CHEOL
IPC: D06F17/10
Filed: 1999-08-23
Abstract: PURPOSE: A pulsator having rotation balls is provided to obtain stronger stirring force by attaching rotation ball fixing elements inserted with a plurality of rotation balls between rotation plate wings of a pulsator for increasing the friction between the clothing and the water, thereby effectively removing the dirt from the clothing. CONSTITUTION: In a pulsator(6) having a top surface formed with a plurality of rotation plate wings(6a) protruded upwardly, and a bottom surface formed with a plurality of protruded ribs, rotation balls(20) are inserted between the plurality of rotation plate wings, wherein the rotation balls are mounted on fixing elements coupled on the top surface of the pulsator by a plurality of coupling elements, and the fixing elements are formed with a plurality of ball insertion holes to be inserted by the rotation balls and holding shoulder parts(32) protruded from inner peripheral surfaces of the ball insertion holes for preventing deviation of the inserted rotation balls.
Patent KR-19990083902-A (KR)
Title: 맥반석 한방 조미김 제조 방법
Filed: 1999-08-27
Abstract: 지금까지는 김 다시마 해조류를 조미구이 할 때는 봉히타를 쓰고, 철판, 반사판을 쓰고 옥배유 콩기름 들기름 참기름 등을 바르고 소금을 첨가하여 가공하여 시중에 유통시켰으나 방사율이 0.93이상인 맥반석 면상히타를 사용하고 반사판도 열처리된 맥반석 반사판을 사용하여 참기름 옥배유 홍화유 산초유 등을 혼합하여 소금을 첨가하여 영양가 많은 홍화씨 한방 조미김을 만드는 방법이다.
Patent KR-20000022810-A (KR)
Inventor: MATZSEBICHIALEX
IPC: H04B7/04
Filed: 1999-08-31
Abstract: PURPOSE: A radio communication method and a measuring radio system are provided to improve the quality of voice and call by seamless hand-offs and the transmission of operation imformation. CONSTITUTION: A measuring radio system(610) uses a measuring radio(612a-612n) to scan an active channel of a base station and provides the operation information as to a traffic radio servicing the active channel. The measuring radio can generate the operation information such as signal length, bit error rate(BER), frame error rate(FER) and signal to noise ratio(C/I), and the information is used for the traffic radio to determine whether or not to change the method of servicing the active channel. The traffic radio can use the operation information to determine whether or not to hand off the active channel with different antennas(620a-620i). The measuring radio can determine the operation information such as operation coefficient, parameter or setting to change the method for the traffic radio to service the active channel.
Patent KR-20000022867-A (KR)
Inventor: STRASER THOMAS ANDREW
IPC: G02B6/34
Filed: 1999-09-02
Abstract: PURPOSE: Dispersion compensation grating apparatus provides a color dispersion, freely selects a taste and quantity of the color dispersion by a chirf selection, and compensate a color compensation in a communication system. CONSTITUTION: Dispersion compensation grating apparatus has a chirfed brag grating(11)and an optical fiber of a predetermined length. The optical fiber has first and second polarization shafts, and is an optic-maintenance fiber which has an inherent fiber birefringence of 10¬(-6). The inherent fiber birefringence includes an optic fiber of a predetermined length and a brag grating in the fiber, and the predetermined length is 10¬(-5) or is larger than the 10¬(-5). Thereby, the dispersion compensation grating apparatus provides a color dispersion, freely selects a taste and quantity of the color dispersion by a chirf selection, and compensate a color compensation in a communication system.
Patent KR-20000047489-A (KR)
Inventor: ICHIGAWA NACHUME
IPC: G03F7/20
Filed: 1999-09-14
Abstract: PURPOSE: An electron beam lithography is realized which provides a high accurate position selection using an optic mark detector having a moving distance. CONSTITUTION: An electron beam lithography system and an aligning method are provided which has a moving distance where a distance for a stage(31) to be moved is minimized and uses an optic mark detector. The electron beam lithography system comprises an electron optic column(10), a control unit, a stage moving apparatus, a mark detector and more than two optic mark detectors(23). The electron optic column accommodates an electron beam source, a converging unit to converge the electron beam being output from the electron beam source, and a deflection unit to deflect the electron beam. The control unit controls the converging unit and the deflection unit. And the stage moving apparatus moves the stage supporting a sample(100) where the electron beam is irradiated. The mark detector measures reflected electrons when position detection marks(51,52) are scanned with the electron beam, and detects the position of the position detection mark optically.
Patent KR-20000023519-A (KR)
Title: Electric lamp
Inventor: BEKER WIRGEN
IPC: F21W107/10
Filed: 1999-09-29
Abstract: PURPOSE: An electric lamp for a head lamp is provided to simply control an illuminant about reference plane of a head lamp. CONSTITUTION: An electric lamp comprises a lamp cap(1),at least one lamp tube(2) fixed to the lamp cap(1) and at least one illuminant covered by the lamp tube(2). The lamp more comprises a control ring(4). The control ring(4) has at least three bearing points(4a) arranged in a common plane vertical to an axis of the control ring(4). The control ring(4) also has at least three contact points with the lamp cap(1) along its inner circumference surface and is fixed to the lamp cap(3) in the three contact points. The control ring(4) consists of plastic or metal.