baber/WOPTO huggingface dataset:
Patent KR-20030031221-A (KR)
Title: Device for holding seat belt of automobile
Inventor: KIM SEONG HEON
IPC: B60R22/19
Filed: 2001-10-12
Abstract: PURPOSE: A safety belt fixing mechanism is provided for more comfortableness of the safety belt and more safe operation of the safety belt. CONSTITUTION: A cylinder(11) is connected pivotally in an inner wall of an automobile to be changed selectively into locking/unlocking position by a rotation of a certain angle. The cylinder presses one side of a safety belt. A roller(12) is connected to the rod of the cylinder. An actuator(13) is fixed in an outer wall of the automobile. The actuator is contracted by a signal in a collision of the automobile. The actuator supports the other side of the safety belt. A holder(14) is connected to the rod of the actuator.
Patent KR-20030037352-A (KR)
Title: An apparatus for crushing a lump oxided iron
Inventor: CHO SO JE
IPC: C25C3/14
Filed: 2001-11-01
Abstract: PURPOSE: An apparatus for crushing solid iron oxide is provided to improve crushing ratio and productivity of iron oxide and working productivity by passing iron oxide through grating members rotated at different speed using negative pressure of air duct. CONSTITUTION: In an apparatus in which an iron oxide storage tank is connected to a reaction furnace through a transfer pipe (120), and which is equipped with a discharge fan for transferring the iron oxide (150) from the reaction furnace to storage tank by forming negative pressure in the transfer pipe (120) so as to crush and transfer solid iron oxide (150), the apparatus is characterized in that a plural propellers (20a,20b) are installed on the transfer pipe (120) so that the plural propellers (20a,20b) are axially rotated, a plural sprockets (25a,25b) having different diameters are respectively formed on rotation shaft of the propellers (20a,20b) so that a plural grating bars (10a,10b) formed at one side of the transfer pipe (120) are rotated at different speed, and the plural grating bars (10a,10b) are arranged adjacently to the outlet of a chute (5) connected to the reaction furnace through the transfer pipe (120) so that the solid iron oxide (150) discharged from the chute (5) is crushed and transferred into the transfer pipe (120) by speed difference of the grating bars (10a,10b) when the iron oxide (150) is passing through the grating bars (10a,10b).
Patent KR-20030037647-A (KR)
Title: A test pattern of semiconductor device and method for forming the same
Inventor: KIM JONG SU
IPC: H01L21/66
Filed: 2001-11-07
Abstract: PURPOSE: A test pattern of a semiconductor device and a forming method thereof are provided to be capable of constantly measuring the first contact hole, even though the first contact hole is damaged, by forming a pair of contact holes having a bigger and smaller size than that of the first contact hole, respectively. CONSTITUTION: The first active region and the second active region are defined by an isolation layer. An interlayer dielectric(37) having the first and second contact hole, is formed on the resultant structure. At this time, the first contact hole(39a) is formed at the first active region, and the second contact holes having diverse sizes corresponding to that of the first contact hole are formed at the second active region. A plurality of contact plugs are filled in the first and second contact hole, respectively. A plurality of metal wiring are electrically connected with the contact plugs. Preferably, the second contact holes include the third contact hole(39b) having the same size as the first contact hole, the fourth contact hole(39c) having a larger size than that of the first contact hole, and the fifth contact hole(39d) having a smaller size than that of the first contact hole.
Patent KR-20030037925-A (KR)
Inventor: HWANG SOOK HWAN
IPC: F24D9/00
Filed: 2001-11-07
Abstract: PURPOSE: A fuel reduction heating system is provided to reduce fuel consumption by improving heating efficiency, while preventing freeze burst of the pipe during winter times. CONSTITUTION: A heating system comprises a heat exchanger block(1), a heating pipe(2), a hot water pipe(3) and circulation pumps(4,4'). The heat exchanger block includes a heating operation heat exchanger block(11) for passage of heating fluid and a main hot water heat exchanger block(12) for passage of hot water. The heating operation heat exchanger block has a flow channel formed into zig-zag shape having a predetermined width and depth. The main hot water heat exchanger block has a flow channel formed into zig-zag shape having a predetermined width and depth. The heating operation heat exchanger block and the main hot water heat exchanger block are coupled with each other through a coupling member.
Patent KR-20020037689-A (KR)
Inventor: AHN GANG MO
IPC: H05F3/00
Filed: 2001-11-12
Abstract: PURPOSE: A static electricity preventing apparatus is provided, which removes static electricity generated while a user contacts a corresponding product. CONSTITUTION: A condenser(C1) charges a static electricity in a moment inputted through two input ports(P1,P2) formed on a facing position each other. A transistor(Q1) prevents the generation of a static electricity by being turned on by a voltage charged in the above condenser. And a transistor(Q2) amplifies a voltage being output from the transistor(Q1). And a light emitting diode(LED) is turned on by a voltage being output from the above transistor(Q2) and removes the static electricity by emitting a light by converting the static electricity into a light energy. The apparatus further includes a resistor(R2) preventing the static electricity by consuming the voltage from the transistor(Q2) slowly while the LED is out of order.
Patent KR-20010107896-A (KR)
Title: 하천 호안 및 법면에 사용하는 포러스 콘크리트 및 시공방법
Inventor: PARK JEONG HO
Filed: 2001-11-14
Abstract: 본 발명은 하천 호안 및 법면에 사용하는 포러스 콘크리트 및 시공 방법에 관한 것이다. 
     1m 3 당 300~400kg/m 3 의 포오트랜드 시멘트와, 100~200kg/m 3 의 물과, 1200~2100kg/m 3 의 골재와, 1~40kg/m 3 의 혼화제로 구성되며, 상기 골재는 최대 치수가 25mm로 되는 25~13mm의 단입도 골재를 사용하는데, 13mm 체의 통과 중량 백분률이 1~20 중량%를 넘지 않는 조골재에, 5mm 체의 통과 중량 백분률이 100%이고 1.2mm 체의 통과 중량 백분률이 1~15 중량%가 되는 5mm이하의 잔골재, 또는 모래를 전체 골재량의 5~20 중량%가 되도록 혼합되며, 또한 골재의 최대 치수가 20mm로 되는 20~13mm의 단입도 골재는 13mm 이하 체의 통과 중량 백분률이 1~20 중량%를 넘지 않는 조골재에, 5mm 체의 통과 중량 백분률이 100 중량%이고 1.2mm체의 통과 중량 백분률이 1~15 중량%가 되는 5mm이하의 잔골재, 또는 모래 전체 골재량의 5~20 중량%가 되도록 혼합하여서 된다.
Patent KR-20030042217-A (KR)
Title: Blind an automatic switchgear
Inventor: JHO GIE DONG
IPC: E06B9/322
Filed: 2001-11-22
Abstract: PURPOSE: An automatic operating device of a blind is provided to manufacture and install easily with simple structure and to use without trouble. CONSTITUTION: The automatic operating device(10) of a blind, installed to a blind frame(20) to operate a sun-shading plate(3) by sliding a slider(5) vertically by a reduction motor(11), contains a gear shaft rod(12) attached in a backing frame(18) and rotated by bearings(14,14-1), a reciprocating nut(13) provided with a lifting lever(15) having a working hole(16) and screwed on the gear shaft rod(12) and contacted into the backing frame(18), a shaft rod(19) fixed to a slider(5) and interposed in the working hole(16) of the lifting lever(15) of the reciprocating nut(13), a rotary shaft of the reduction motor(11) connected to one side of the gear shaft rod(12) exposed to the outside of the bearing(14-1), and a cover(17) placed on the outside of the backing frame(18) and the reduction motor(11).
Patent KR-20020040611-A (KR)
Title: Method and system for enhanced packet transmission in cellular networks
Inventor: BERNHARD URS PETER
IPC: H04W52/28
Filed: 2001-11-22
Abstract: PURPOSE: A method and a system for enhanced packet transmission in cellular networks are provided to simultaneously optimize the transmission of data flows in a packet switch cellular system. CONSTITUTION: A scheduling mechanism(Sc) of the first cell is coupled with a scheduling mechanism(St) of the second cell. Data having status information concerning an actual data flow is transferred to be handed over from the scheduling mechanism(Sc) of the first cell towards the scheduling mechanism(St) of the second cell(5). At least one of the scheduling mechanism(Sc,St) is ensured by linking at least two schedulers each operating on a different protocol layers. Each PDU(Protocol Data Unit) of an incoming data flow to be transmitted is scheduled by the scheduler(PDU-scheduler) on an upper layer regarding the pre-definable associated quality of service requirements into a priority list to be served by the scheduler(MAC-scheduler) of a lower layer.
Patent KR-20020005542-A (KR)
Inventor: WEE GYE SEONG
IPC: A01G9/14
Filed: 2001-11-27
Abstract: PURPOSE: An apparatus for generating low temperature wind is provided to adjust a temperature inside of a greenhouse according to a growing condition of the garden plant, and to appropriately control the supply of oxygen and the moisture of the ground inside the greenhouse. CONSTITUTION: The apparatus for generating the low temperature wind comprises an elongate base support frame(710) extending along a longitudinal axis of the apparatus; a water drainage passage(720) and an air injection tube(750) fixed by a wedge shaped clamp and a fastener into a vinyl fastening groove of a pipe(210c) provided on the both ends of the base support frame; a water supply tube(730) fixed by a support(740); and a fibrous material tube(780) contained in the air injection tube. The fibrous material tube consists of a big annular ring(770) and an injection nozzle(760) repeatedly arranged at regular distances.
Patent KR-20030045583-A (KR)
Title: Method for incubating companies using virtual stock dealings and computer readable record medium on which a program therefor is recorded
Inventor: CHOI DU WON
Filed: 2001-12-04
Abstract: PURPOSE: A method for incubating an enterprise using the virtual stock trade and a computer-readable recording medium storing a program executing the same are provided to make an investor carry out the stable investment by providing a subjective enterprise information to the investor through the information communication network, and to offer a cheap and fast incubating service to the enterprise. CONSTITUTION: An operator server registers a member by receiving the basic information including an ID and a password from an enterprise computer and an investor computer(S2). The server receives a request for buying the virtual stock of an investing enterprise from the investor computer(S4). The server selects the enterprise including to the high ranks previously set by an operator according to a standard stock price(S6). The server performs the Internet public subscription for the highly ranked enterprise(S10).
Patent KR-20030048200-A (KR)
Title: Method for inputting letters using specific key-buttons and mobile phone implementing the same
Inventor: LEE JEONG HUN
IPC: H04M1/23
Filed: 2001-12-11
Abstract: PURPOSE: A portable phone is provided to arrange a specific key button for special purpose and a key button for inputting consonants and vowels on a keypad, thereby enabling a user to easily input Korean character. CONSTITUTION: A controller(200) processes an inputted signal when a user operates a keypad(210), displays the processed signal as characters on a display(220), and temporarily stores the inputted characters in a memory(230) if a Korean/English conversion function is selected. If the user presses a specific key button, the controller(200) displays the temporarily-stored characters on the display(220). The keypad(210) has 7 key buttons assigned to generate consonants, 3 key buttons assigned to generate vowels, one key button for generating pair consonants and double vowels, and 9 key buttons for inputting small letters of English from the 10 key buttons for generating the consonants and the vowels. The keypad(210) has one key button for inputting capital letters, one key button for the Korean/English conversion function, a key button for a space, and a key button for a capital letter inputting mode.
Patent KR-20030050717-A (KR)
Title: A fabricating method of semiconductor device
Inventor: LEE SEONG GWON
IPC: H01L21/283
Filed: 2001-12-19
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to be capable of preventing the generation of seams and voids when forming a plug. CONSTITUTION: An insulating layer(21) having an opening part is formed on a conductive layer(20). A multilayer barrier film(22) including a lower and upper barrier film(22a,22b) is formed on the entire surface of the resultant structure. A conductive layer is formed on the barrier film(22) to sufficiently fill the opening part. The conductive layer is etch-back so as to expose the lower barrier film(22a) by using fluorine gas as an etching gas. Then, etch residues are removed by using the same fluorine gas having small gas flow compared to the etch-back processing, thereby forming a plug(23).
Patent KR-20030052056-A (KR)
Title: Standing type feeder device of a narrow fabric loom
Inventor: CHENG CHENG HSIUNG
IPC: D03D49/02
Filed: 2001-12-20
Abstract: PURPOSE: Provided is a pillar type feeder device assembly of a narrow fabric loom, wherein several sets of feeder devices are fitted to both sides of a wall plate. Therefore, the feeder device is easily assembled and repaired, as well as reduces production cost and repair cost. CONSTITUTION: In a pillar type feeder device assembly of a narrow fabric loom, a pillar is installed in the center of the stand for a fabric loom vertically to feeding direction, a wall plate is installed in the side of the pillar along the feeding direction of warp threads, and the wall plate has a feeding device and a motor device.
Patent KR-20030052068-A (KR)
Title: Apparatus for material scattering of unload feeder
Inventor: LEE GAP SU
IPC: B65G47/19
Filed: 2001-12-20
Abstract: PURPOSE: A material distributor of an unloading feeder is provided to prevent the overload of fallen materials. CONSTITUTION: A material distributor comprises a rail(23), ore falling plates(30a,30b,30c), a driving cylinder(29) and a rotating device. The rail is installed in parallel with a belt conveyor. The ore falling plates are moved through the rail. The driving cylinder moves the ore falling plates. The rotating device rotates the ore falling plates. Thereby, the reduction of the quality is prevented without falling materials in a yard. Moreover, the life of the roller is extended and accidents are prevented.
Patent KR-20030053646-A (KR)
Title: Closure Device for Hot Blast Valve
Inventor: PARK SAM GYUN
IPC: C21B9/00
Filed: 2001-12-22
Abstract: PURPOSE: An emergency closing system of hot blast valve in hot stove during power failure is provided to prevent backflow of gas and melt by closing the hot blast valve using the hot blast valve emergency closing system in operation room when power failure is occurred during blowing of hot blast into blast furnace. CONSTITUTION: The emergency closing system of hot blast valve in hot stove during power failure comprises an emergency closing hydraulic driving part comprising emergency closing electronic valve(15), hydraulic pump(17) attached to hydraulic pressure storage container(16), and emergency closing hydraulic cylinder(20) connected to the main body of weight wheel(34); an emergency closing subsidiary weight operating part comprising subsidiary weight(21), subsidiary weight valve descending transmission bar(37), subsidiary weight ascending sensing switches(23) installed on upper and lower parts of the subsidiary weight(21) to check the operating state of the subsidiary weight(21), subsidiary weight coiling drum(31a) connected to the subsidiary weight(21) through wire, brake power transmission hydraulic cylinder(29) and brake part(30) installed to stop the subsidiary weight(21), locker(31) for preventing unlocking of the subsidiary weight coiling drum(31a), switch(24) at opening side of the locker(31) and switch(24a) at locking side of the locker(31), brake power transmitting brake slider(42), electronic valve for operating the hydraulic cylinder(29), and checking switch(24b) for checking the locking and unlocking state of the brake; a return part comprising subsidiary weight hoisting electric motor(25), subsidiary weight hoisting power transmission cylinder(26), power transmitting clutch(28), subsidiary weight hoisting power releasing switch(27), and subsidiary weight hoisting power connecting switch(27a); and a hot blast valve closure control part comprising uninterruptible power supply (UPS)(36), emergency selection switch(41), alarm(39), and normal operating lamp(43).
Patent KR-20030056321-A (KR)
Title: A forming method for self align contact of semiconductor device
Inventor: OH JIN SEONG
IPC: H01L21/28
Filed: 2001-12-28
Abstract: PURPOSE: A method for forming an SAC(Self Align Contact) of a semiconductor device is provided to be capable of obtaining good etching profile by selectivity etching between a nitride layer and an oxide layer when forming the SAC. CONSTITUTION: An interlayer dielectric(14) is formed at the upper portion of a substrate(10) having a plurality of gate electrodes(11). After sequentially forming a hard mask insulating layer and a photoresist pattern(16) on the interlayer dielectric, a hard mask(15) is formed by selectively etching the hard mask insulating layer using the photoresist pattern as an etching mask. Then, the photoresist pattern is partially removed. A contact hole(17) is formed by selectively etching the interlayer dielectric using the hard mask as an etching mask for exposing the surface of the substrate. At this time, the remaining photoresist pattern is used as polymer source. Preferably, the hard mask includes a nitride layer and the interlayer dielectric includes an oxide layer.
Patent KR-20030056828-A (KR)
Title: Method For Forming Insulating Layer And Method For Forming The Polysilicon Thin Film Transistor
Inventor: HWANG UI HUN
IPC: C23C16/44
Filed: 2001-12-28
Abstract: PURPOSE: A method for forming an insulating layer and a method for forming a polysilicon TFT(Thin Film Transistor) using the same are provided to be capable of controlling CD(Critical Dimension) when carrying out a wet etching process and improving the step difference of a contact hole by forming an insulating layer made of an upper and lower layer having a different density, respectively. CONSTITUTION: After preparing a substrate, an insulating layer is deposited on the substrate. At this time, the insulating layer(36) has a different density along the height of the insulating layer. Preferably, the insulating layer depositing process is carried out in a depositing equipment by using plasma. Preferably, the insulating layer is made of an SiOx layer, an SiONx layer, and an SiNx layer.
Patent KR-20030059430-A (KR)
Title: Luminescence compound and organic electro-luminescence device using the same
Inventor: BYUN GI NAM
IPC: C09K11/06
Filed: 2001-12-29
Abstract: PURPOSE: A light emitting material, a compound contained in the material and an organic electroluminescent device using the material are provided, wherein the device shows high luminance efficiency, luminance and color purity, improved electrical and chemical stabilities and lifetime characteristic and excellent heat resistance and durability. CONSTITUTION: The light emitting material comprises the compound represented by the formula 1, wherein X and X' are independently a cyano group, a halogen atom, an alkyl carbonyl group of C1-C30 or an alkoxycarbonyl group of C1-C30; Y is an electron donating functional group; R1, R2, R3 and R4 are independently H, a substituted or unsubstituted alkyl group of C1-C10, a substituted or unsubstituted alkoxy group of C1-C10, a substituted or unsubstituted alkyloxy group of C1-C10, or a substituted or unsubstituted phenyl group of C6-C30; and R5 is H, a substituted or unsubstituted alkyl group of C1-C10 or a substituted or unsubstituted aryl group of C6-C30.
Patent KR-20030058456-A (KR)
Title: Urethane modified polyester resin composition, a preparation method thereof and a paint composition including the same
Inventor: LEE JU GIL
IPC: C08G63/91
Filed: 2001-12-31
Abstract: PURPOSE: A urethane modified polyester resin composition for use in a surfacer paint for automobiles is provided to obtain a coating having improved surface smoothness and chipping resistance. CONSTITUTION: The urethane modified polyester resin composition comprises 100 parts by weight of a polyester polyol resin and 2 to 20 parts by weight of a diisocyanate compound in the form of an adduct to the polyester polyol resin. In particular, the polyester polyol resin is obtained by polycondensing the mixture comprising alcohol components consisting of 5 to 20 wt% of a trihydroxy or higher polyol, 5 to 30 wt% of polyoxyethylene bisphenol-A and a polyhydric alcohol, and acid components consisting of 10 to 40 wt% of adipic acid, 15 to 45 wt% of isophthalic acid and a polybasic acid, wherein the mixing ratio is based on the solid content of polyester resin and the weight ratio of alcohol components : acid components is 30-70:70-30.
Patent KR-20010074775-A (KR)
Title: 플래시 ｅｅｐｒｏｍ 메모리 셀 및 그 제조 방법
IPC: H01L21/8247
Filed: 2000-05-24
Abstract: 따라서, 본 발명에 따른 예시적 실시예들은 종래의 2 폴리 스택형 게이트 셀의 단점을 극복하고 고성능 로직 기술과 용이하게 집적될 수 있는 단일 폴리 플래시 EEPROM 셀에 관한 것이다.  예시적인 2 트랜지스터 플래시 EEPROM 메모리 셀 어레이는 다수의 이들 플래시 EEPROM 셀을 포함하며, 이들 셀 각각은 비트 라인(BL) 및 워드 라인(WL)을 구비한 선택 트랜지스터를 갖으며, 이 선택 트랜지스터는 플로팅 게이트 트랜지스터(B)와 직렬로 접속된다.  플로팅 게이트 트랜지스터는 텍스처 처리된(textured) 단결정 기판(P) 상에 형성된 얇은 터널링 산화물을 구비한다.  플로팅 게이트(A)는 또한 그 플로팅 게이트에 용량적으로 결합된 결합 라인(a coupling line)을 형성하고 터널링 기능을 수행하는 기판 내의 강도핑된 영역(n+) 위에 형성된다.
Patent KR-20010071052-A (KR)
IPC: C08G18/79
Filed: 1999-07-28
Abstract: The invention concerns an isocyanate composition useful for applying powder paints. Said composition is characterised in that it contains a masked isocyanate compound and an unmasked cycloaliphatic isocyanate compound. The invention is applicable in the chemistry of paints.
Patent KR-20010080603-A (KR)
IPC: G11B17/26
Filed: 2000-09-28
Abstract: CD가 적재되는 디스크 적재 수단을 예로 들자면, 연직방향으로 복수개 적층한 것을 적층 방향으로 이동시키는 디스크 승강대(22)와, CD를 협지해서 회전 구동시키는 협지 수단(14)을 갖춘 차량용 디스크 플레이어이며, 상기 디스크 적재 수단의 적층 방향과 직교하는 방향(디스크의 평면 방향)으로 이동하여 디스크 승강대(22) 및 협지 수단(14)을 상기 적층 방향으로 이동시키는 내부 슬라이더(139)와, 상기 적층된 디스크 적재 수단을 분할해서 소정의 공간을 형성하는 분리 캠(82)과, 이 분리 캠(82)에 연결되며 디스크의 평면 방향으로 이동하는 외부 슬라이더(14)를 구비했다.
Patent KR-20020002386-A (KR)
IPC: A61P43/00
Filed: 2000-12-06
Abstract: 본 발명은 저 수용성의 선택적 시클로옥시게나제-2 저해성 약물을 치료학적 유효량으로 함유하는 하나 이상의 경구 전달가능한 용량 단위를 포함하는 약학 조성물을 제공한다. 이 조성물에 있어서, 상기 약물은 입자의 약 25∼100 중량%가 1 ㎛보다 작은 고체 입자의 형태로 존재한다. 이 약학 조성물은 시클로옥시게나제-2 매개형 증상 및 질병의 치료 또는 예방에 유용하며, 치료 효과의 신속한 개시가 바람직한 경우 특별한 이점을 나타낸다.
Patent KR-20010109320-A (KR)
IPC: F16K31/44
Filed: 2000-03-02
Abstract: 본 발명은 제어 압력을 공급받을 수 있는 2개의 제어 출구들(96, 97)과 하나의 유압 파일럿 제어장치를 포함하는 유압 제어 컨트롤에 관한 것이다.  상기 유압 파일럿 제어장치는 중립위치로부터 제 1 방향 및 제 2 방향으로 변위 가능한 하나의 레버(81) 그리고 중립위치로부터 레버가 변위함으로써 조정 가능한 하나의 압력밸브(69)를 포함한다.  상기의 파일럿 컨트롤에 있어서 간단한 방식으로 양방향 내로 제어레버를 변위 시키기 위해 파일럿압의 대칭인 특성변화가 조정될 수 있다.  이러한 점은 본 발명에 따라, 압력밸브가 제 1 방향으로 레버가 변위될 시에 그리고 제 2 방향으로 레버가 변위될 시에 동일한 의미에서 조정가능하며, 그리고 방향제어밸브(73)가 제공되어 있음으로 해서 달성된다.  이때 상기 방향제어밸브는 레버의 변위방향에 종속되면서 압력밸브의 제어출구(80)를 제 1 제어출구(96) 혹은 제 2 제어출구(97)와 연결시킨다.
Patent KR-20020028878-A (KR)
Title: NOVEL INTERLEUKIN-1 AND TUMOR NECROSIS FACTOR-αMODULATORS, SYNTHESES OF SAID MODULATORS AND METHODS OF USING SAID MODULATORS
IPC: C07C33/14
Filed: 2000-05-12
Abstract: A compound having the following chemical structure:   
its produg esters and acid-addition salts, useful as Interleukin-1 and Tumor Necrosis Factor-± modulators, wherein R groups are defined in the claims.
Patent KR-20020035485-A (KR)
IPC: G03F7/20
Filed: 2001-03-20
Abstract: 투명한 굴절형 재료(52)는 광전자 기판 소자(50) 위에 증착된다. 그러한 굴절형 재료에는 규칙적인 모자이크형 패턴으로 배열되는 복수의 마이크로렌즈(40)가 형성되고, 상기 패턴은 규정한 다각형 테두리에서 서로 접착되는 다각형 셀들의 규칙적인 타일링 패턴 위에 중첩 가능하다. 상기 굴절형 마이크로렌즈 표면의 콘튜어는 축에 대해 각각의 셀 내에서 회전 대칭이고, 상기 회전 대칭 콘튜어는 상기 셀의 테두리 내의 모든 표면 지점에서 실질적으로 대칭을 유지한다. 상기 굴절형 마이크로렌즈 표면은 그레이 스케일 포토리소그래피에 의해 콘튜어를 포토레지스트(54)에 프린팅하고, 이온 에칭에 의해 적합하게 그 콘튜어(42)를 밑에 있는 굴절형 평탄화 재료(52)에 전사시킴으로써 제조된다. 상기 방법은 각각의 마이크로렌즈(40)가 다각형 셀을 따라 실질적으로 대칭인 콘튜어(42)를 유지하는 마이크로렌즈 어레이를 생성할 수 있도록 해줌으로써, 상당한 수차없이 거의 1의 채움률을 달성할 수 있다.