baber/WOPTO huggingface dataset:
Patent KR-20000046478-A (KR)
Title: Transferred-substrate heterojunction bipolar transistor and method thereof
Inventor: IN BYUNG UK
IPC: H01L29/72
Filed: 1998-12-31
Abstract: PURPOSE: A transferred-substrate heterojunction bipolar transistor is to improve a high frequency and temperature characteristic. CONSTITUTION: An emitter(100) and a collector(130) are connected to both sides of a base(120), respectively, the base being doped with a first conductive impurity and the emitter and the collector being doped with a second conductive impurity. The emitter and the collector are connected so as to be opposite to each other in a width narrower than that of the base, and have a depleted collector resisting layer(11) connected to an upper surface of an edge of the collector, ad a base metal layer(110) connected to the base. A thickness of the collector resisting layer is 100 to 1000 angstrom, and a length of the collector resistor is determined depending upon the width of the base and collector. A second base metal layer is formed to connect to an exposed surface of the base, and a third base metal layer is connected to the first base metal layer.
Patent KR-20000046773-A (KR)
Title: Process for producing polyethylene-2,6-naphthalate fiber
Inventor: SEO SEONG WON
IPC: D02J1/22
Filed: 1998-12-31
Abstract: PURPOSE: Provided is a process for producing polyethylene-2,6-naphthalate fiber which has improved work property, mechanical property and heat property. Thereby, it is possible to produce polyethylene-2,6-naphthalate fiber which has excellent work property, mechanical property and heat property. CONSTITUTION: A process for producing a polyethylene-2,6-naphthalate fiber is obtained by multiple drawing steps. The first drawing step is drawn by the first drawing roller of 100-150°C and the second drawing roller. The second drawing step is drawn by the second drawing roller and the third drawing roller of 150-250°C. The rate of the first drawing step is 10-20% of total drawing rate. The rate of the second drawing step is 80-90% of total drawing rate.
Patent KR-20000047149-A (KR)
Title: Pallet for loading fire resistant material
Inventor: CHOI IL HAK
IPC: B65D19/22
Filed: 1998-12-30
Abstract: PURPOSE: A pallet for loading fire resistant materials is provided to offer efficient and safe working efficiency, to improve durability of a pallet, to prevent damage of a pallet and to lengthen the life of a pallet by solving problems of a general pallet for loading fire resistant materials and by improving various functions. CONSTITUTION: Fire resistant bricks loaded on a pallet(1) are wrapped by a thermally contracting wrap. The end of the bricks are fixed to fixing members(7,7') formed of wood and inserted to both sides of the upper plate by a fixing piece such as a stapler. The wrap is easily fixed and divided by using the fixing members thus wrapping is performed conveniently. When lifting the pallets, a wire rope(8) is hung on hanging sills(6,6') and connected to a crane. The hanging sills on both ends of struts(2,2') are formed to be recessed in the shape of an arc face thus the rope is hung on conveniently and fixed to the hanging sills firmly and safely.
Patent KR-19990035904-A (KR)
Title: 스트로빌루린 유사 화합물을 함유하는 상승적 살진균 조성물
IPC: C23C14/08
Filed: 1996-07-23
Abstract: 본 발명은 하기 화학식 I 의 화합물 A 1 종 이상, 및 아인산 및 이의 유도체, 예컨대 포세틸-Al 과 같은 금속 아인산염 및 아인산의 알칼리 금속염 또는 알칼리 토금속염으로 구성된 군으로부터 선택된 살진균성 화합물 B 1 종이상을 함유하며, A/B 중량비가 0.004 내지 1, 바람직하게는 0.0125 내지 0.4 가 되도록 성분 A 및 B 를 함유하는 것을 특징으로 하는 상승적 살진균 조성물에 관한 것이다. 
     [화학식 I] 
     
       
     
     (식중, A 는 질소 원자 또는 -CH 기이고, B 는 -OCH 2 - 또는 -CH 2 O- 또는 CH(CH 3 )-O-N=CH- 또는 -CH=N-O-CH(CH 3 )- 기 또는 하기 화학식 II 의 기이고: 
     [화학식 II] 
     
       
     
     R 1 은 탄소수 1 내지 4 의 알킬기이고, R 2 는 -OCH 3 또는 -NHCH 3 이고, X 는 할로겐 원자, 시아노기 또는 탄소수 1 내지 4 의 알킬 또는 할로알킬기, 바람직하게는 메틸 또는 트리플루오로메틸기이고, n 은 1 또는 2 이며, 단, n 이 2 일 때, 상이한 X 기를 가질 수 있다).
Patent KR-19990044386-A (KR)
Title: 유체 분산 특성을 갖는 개구막과 이를 형성하는 방법 및 이를 채용하는 흡수성 물품
IPC: B29K105/04
Filed: 1996-08-27
Abstract: 본 발명은 흡수 물질에서 톱시트로서 사용하기 위한 구멍이 난 막에 관한 것으로서, 이 막은 한 측면에서 코로나 처리되며, 막의 코로나 처리되며 비코로나 처리된 측면에 분산되는 계면활성제를 인가한다. 계면활성제의 인가를 위한 방법은 계면활성제가 막의 양 측면에 계면활성제를 인가하기 위해서 아직도 젖어 있을 때 막의 한 측면에 계면활성제를 인가하며 롤로 막을 굴린다.
Patent KR-19990063752-A (KR)
IPC: B01D53/86
Filed: 1996-09-18
Abstract: The invention relates to a method and to a device for using a reagent for converting a pollutant in an exhaust gas in a catalytic converter. The reagent is metered as a function of operational parameters of the exhaust gas and of a temperature of the catalytic converter. The reagent is added to the exhaust gas to form a mixture, and the mixture is fed through the catalytic converter. The temperature is determined recursively as a spatially and time-dependent function of the catalytic converter from the operational parameters of the exhaust gas and structural parameters of the catalytic converter. Catalytic activity in the catalytic converter is determined from the derived temperature and the reagent is metered as a function of the catalytic activity.
Patent KR-19990076619-A (KR)
Title: 약학조성물을제조하기위하여사용되는은행나무추출물의용도,및은행나무추출물을사용하는화장치료방법
IPC: A61K36/00
Filed: 1997-10-21
Abstract: 본 발명은 면역 조절 활성을 가지고 있는 조성물을 제조하기 위하여 은행나무로부터 추출에 의하여 얻어질 수 있는 하나 이상의 활성 성분을 사용하는 것에 관한 것이다.  본 발명은 또한 민감한 피부를 화장적으로 치료하는 방법에도 관한 것이다.
Patent KR-19990082022-A (KR)
Title: 고 분산상 에멀션으로부터의 발포체 제조방법
IPC: C08J9/28
Filed: 1997-01-24
Abstract: 적어도 하나의 경화성 상을 갖는 고 분산상 에멀션을 형성하고; 
     중합체 필름이 각 상의 에멀션과 비상용성인 중합체 필름의 연속 스트립을 제공하며; 
     에멀션의 적어도 일부를 중합체 필름 상에 연속 배치하며; 
     에멀션 주위의 중합체 필름을 밀폐하며; 
     중합체 필름내의 에멀션을 경화 도중 에멀션의 저장을 위해 대략 본질적으로  수직인 축을 중심으로 회전하는 스풀에 나선형으로 감은 다음; 
     중합체 필름내의 에멀션을 스풀상에서 경화하는 단계를 포함하는, 다공성 가교결합된 중합체 물질을 형성하기 위한 고 분산상 에멀션 경화방법이 제공된다.   이 방법을 수행하기 위한 장치가 또한 기재되어 있다.
Patent KR-20000016574-A (KR)
Title: Oxidation reaction catalyst and production methdo of epoxide from olefin, hydrogen, oxygen using catalyst
Inventor: GROSCH GEORG HEINRICH
IPC: B01J29/04
Filed: 1997-05-30
Abstract: PURPOSE: A new oxidation reaction catalyst containing silicic acid titan or silicic acid vanadium and a production method of epoxide from olefin, hydrogen, oxygen using an oxidation reaction catalyst is provided. CONSTITUTION: An oxidation reaction catalyst formed by a pressing forming process, containing silicic acid titan or silicic acid vanadium as main ingredients containing 0.01 to 30wt% of more than one kind of precious metal selected among the groups consisted of ruthenium, rhodium, palladium, osmium, iridium, platinum, rhenium, gold and silver which have zeolite structure has a minimum diameter of 0.5mm, and a mole ratio of a total amount of titan or vanadium: silicon and titan or vanadium to be 0.01:1 to 0.1:1.
Patent KR-20000016702-A (KR)
Title: Light-modulating element and projection display
Inventor: HASHIZUME TOSHIAKI
IPC: H04N9/31
Filed: 1998-05-19
Abstract: PURPOSE: A light-modulating element and projection display are disclosed, in which an image of a high quality can be projected without deteriorating the switching characteristics of the liquid crystal modulating elements, since the light-emerging surfaces are not contaminated. CONSTITUTION: Liquid crystal modulating elements (925R, G, B) are so arranged that the light-emerging surfaces (9252R, G, B) thereof are opposed to light-entering surfaces (911R, G, B) of a color combining prism (910). Transparent plates (970R, G, B) are respectively stuck to the light-emerging surfaces (925R, G, B). This prevents dust from adhering to the light-emerging surfaces (9252R, G, B), and also prevents the reflection of light due to the difference in the refraction at the interface between the light-emerging surfaces (9252R, G, B) and the air.
Patent KR-20000022117-A (KR)
Title: Polyolefin microspheres
Inventor: BROWN KATHERINE A
IPC: C08F110/14
Filed: 1996-10-22
Abstract: PURPOSE: Polyolefin micro spheres and methods of preparation therefor are provided. CONSTITUTION: Microspheres comprise a polymer or copolymer including one or more of 1)a plurality of C3 or larger alpha-olefin units wherein the polymer has an average number of branch points less than one per monomer unit, and 2) a plurality of C2 alpha-olefin units wherein the polymer has an average number of branch points greater than 0.01 per monomer unit, the micro spheres having an average diameter in the range of 1 to 300 micrometers. Optionally, the polymer of the micro spheres can be crosslinked. The micro spheres can be prepared by suspension or dispersion polymerization processes using aqueous or organic reaction media. As a method of producing the micro spheres, the process includes comprising admixing, in any order, alpha-olefin monomer(s), catalyst, and at least one liquid reaction medium in which the resultant polymer is insoluble, and allowing polymerization of the alpha-olefin monomer(s) to take place.
Patent KR-20000051750-A (KR)
Inventor: YANG KI SEUNG
IPC: H04W8/30
Filed: 1999-01-26
Abstract: PURPOSE: A method of processing local call, when difficulties between MSC(Mobile Switching Center) and HLR(Home Location Register) are found, is provided to process local call without any order of operator when the link between MSC and HLR has a difficulty. CONSTITUTION: A method of processing local call, when difficulties between MSC(Mobile Switching Center) and HLR(Home Location Register) are found, comprises the steps of; MSC requests location information of receiver mobile station to HLR, processing the call by using the receiving location information when received location information of receiver mobile station from HLR, requesting service information of receiver mobile station to VLR(Visitor Location Register) in MSC when failed to receive the information, processing the call by using the received service information when VLR respond, closing the process of the call when VLR doesn't respond.
Patent KR-19990072417-A (KR)
Title: 선택되지않은비트라인에대한풀다운기능을갖는반도체메모리소자
IPC: G11C17/12
Filed: 1999-02-04
Abstract: 복수의 비트라인 (BL 1 , BL 2 , ...) 에 접속된 복수의 ROM 셀 (MC 11 , MC 12 , ...) 을 구비하는 메모리셀 어레이 (1),  상기 비트라인중 하나에 접속된 제 1 MOS 트랜지스터 (213, 223, ...) 를 각각 구비하는 복수의 센스증폭기,  상기 제 1 MOS 트랜지스터의 게이트에 기준전압을 인가하기 위한 기준전압 생성회로 (3), 및  상기 비트라인을 각각 선택하기 위한 복수의 비트라인 선택신호를 생성하는 비트라인 선택회로 (DECY) 로 이루어진 반도체 메모리소자에,  상기 비트라인중 하나와 접지단자 사이에 각각 접속된 복수의 제 2 MOS 트랜지스터 (412, 422, ...) 가 설치된다.     또한,  상기 제 2 MOS 트랜지스터가 상기 비트라인 선택신호의 반전신호에 의하여 제어되도록,  복수의 인버터가  상기 비트라인 선택회로 및 상기 제 2 MOS 트랜지스터 사이에 접속된다.
Patent KR-19990072501-A (KR)
Title: 세정포로실린더외표면을세정하는장치및가압패드
IPC: B41F35/00
Filed: 1999-02-09
Abstract: 본 발명은 세정포로 실린더 외표면을 세정하는 장치용 가압패드에 관한 것이다. 세정포는 실린더와 가압패드 사이로 향해져 있으며, 상기 가압패드는 실린더에 평행하게 연장되게 장치에 고정된 양측의 엣지부들을 구비하고 있다. 상기 가압패드는 실린더의 외표면을 향하여 볼록하게 양측의 엣지부들 사이에서 만곡되어 있고 탄성체로 형성된다. 상기 가압패드는 실린더의 외표면을 세정하도록 세정포가 가압패드에 의해 실린더의 외표면에 대하여 가압될 수 있도록 세정포와 협동한다. 가압패드는 세정포와 맞물려서 상기 세정포가 실린더의 외표면에 대하여 가압되도록 실린더와 상기 맞물리는 부분 사이에 끼워지도록 된 맞물리는 부분을 포함한다. 상기 가압패드는 또한 상기 실린더와 상기 맞물리는 부분 사이에서 압력을 작용하는 가압패드의 양측 엣지부들중 적어도 하나와 상기 맞물리는 부분 사이에 배치되고 그 맞물리는 부분으로부터 기계적인 변수에 있어서 차이가 있는 가압 작용부를 포함한다.
Patent KR-19990072765-A (KR)
Title: 이온교환필터,필터의제조방법및필터장치
IPC: B01D53/00
Filed: 1999-02-19
Abstract: 대경 연속기공을 가지는 망상 폴리우레탄 폼으로 만들어지는 골격기재에 아크릴계, 우레탄계, 초산비닐계 중 어느 한 가지의 접착제를 함침시키고, 상기 골격기재 표면의 거의 전역에 접착제를 부착시키고, 대경 연속기공의 공경(孔徑)의 2% 이상 50% 이하의 입경을 가지는 이온교환수지 입자를 상기 골격기재에 부착하지 않고 두께 방향으로 통과할 때까지 상기 대경 연속기공에 과잉량 주입하고, 상기 골격기재에 접착하지 않고 상기 대경 연속기공내에 유지되어 있는 이온교환수지 입자를 제거하여 이온교환 필터를 제조한다.
Patent KR-19990083094-A (KR)
Title: 연마 장비
IPC: H01L21/304
Filed: 1999-04-09
Abstract: 연마 장비는 연마 패드, 기판유지부, 및 리테이너 링을 포함한다.     연마패드는 연마테이블에 부착된다.     기판유지부는, 연마 대상으로서의 기판을 유지하면서, 연마패드에 대해 기판의 연마대상면을 압박한다.     리테이너 링은  기판의 주위에 일치하도록 기판유지부의 유지면상에 형성된다.     리테이너 링은  연마패드와 접촉하게 되는 리테이너 링의 표면에 형성된 수지부분 및 수지부분을 유지하며 수지부분보다 높은 기계적 강도를 가진 재료로 이루어진 링형상의 수지유지부를 가진다.
Patent KR-20000066012-A (KR)
Inventor: OH JIN HWAN
IPC: B65G17/38
Filed: 1999-04-12
Abstract: PURPOSE: A nonmetal chain is provided to improve break and elongation intensity. CONSTITUTION: A fiber reinforcement plastic member is pultrusion-molded and covered by engineering plastic. Thereby, damage to the fiber reinforced plastic member caused by friction is avoided. The break intensity of glass fiber reinforcement plastic is improved by coating the glass fiber with the engineering plastic. Thus, since a pin(36) is composed of an inner member made up of the fiber reinforcement plastic and an outer member, elongation and break intensity is greatly improved. Further, a damage caused by the friction of the fiber reinforcement plastic member is prevented.
Patent KR-20000072845-A (KR)
Inventor: LEE GYEONG YUN
IPC: G06F1/16
Filed: 1999-05-01
Abstract: PURPOSE: A structure for mounting a monitor stand is provided to separate the monitor stand from the monitor by using a snap pin. CONSTITUTION: A monitor(20) includes a front cover(21), a rear cover(22) which is integrally engaged with the rear portion if the front cover(21) for thereby forming an outer structure of the monitor, and a stand(28) for supporting the monitor(20). A fixing bracket is engaged at the bottom of the monitor(20). The stand(28) is fixed to the fixing bracket. The monitor(20) is integrally fixed to an upper portion of the stand(28). The fixing bracket is formed in a rectangular plate shape, and a plurality of engaging holes are formed at a certain portion and are distanced from each other at a certain distance.
Patent KR-20000073301-A (KR)
Inventor: KIM BYEONG TAE
IPC: D06F33/02
Filed: 1999-05-10
Abstract: PURPOSE: An apparatus for controlling the temperature of a washing water of a washing machine is provided to prevent the laundry to washed from being damaged by maintaining the temperature of the washing water at a proper degree. CONSTITUTION: An apparatus for controlling the temperature of a washing water of a washing machine comprises a temperature detecting sensor(111) which is coupled to a bottom of an outer tub(102) of the washing machine. A controller operates a water feeding valve(110) according to a signal inputted from the temperature detecting sensor(111) so as to maintain the temperature of the washing water at a proper degree. The operation of the water feeding valve(110) stops when the water in the outer tub(102) of the washing machine reaches a predetermined level. Then, a motor(106) is driven so as to rotate the rotating shaft(105). Accordingly, a pulsator(104) coupled to the rotating shaft(105) is rotated so as to wash the laundry.
Patent KR-20000073498-A (KR)
Inventor: RYU DAL RAE
IPC: H01L21/027
Filed: 1999-05-11
Abstract: PURPOSE: A method for manufacturing a semiconductor device is to provide a uniform pattern all the time regardless of the non uniform thickness of a thin film for patterning in a photolithography process. CONSTITUTION: A photoresist layer is applied on the first thin film unevenly formed on a lower thin film. A photoresist layer pattern is formed by exposing and developing the photoresist layer using a mask on which a desired first thin film pattern is formed. The exposed first thin film is etched by using the photoresist layer pattern as a mask. The photoresist layer pattern is eliminated to form the desired first thin film pattern. And, the second thin film of which an index of light refraction, a light absorption coefficient and a thickness are properly controlled according to the index of light refraction and light absorption coefficient of the photoresist layer, first thin film and lower thin film, is formed between the first thin film and the lower thin film.
Patent KR-20010001712-A (KR)
Title: Microwave repeater
Inventor: KIM JEONG HYE
IPC: H04B1/59
Filed: 1999-06-08
Abstract: PURPOSE: A microwave repeater is provided to control a wireless communication on-channel. CONSTITUTION: In a transmitting unit(200), the first divider(202) divides radio communication signals of mutually different high frequencies according to predetermined speech bands. The first frequency converters(204) convert the radio communication signals into intermediate frequency(IF) signals. The second frequency converter(208) converts the first predetermined frequency signals into micro wave radio communication signals. A pilot signal generator(210) generates a microwave pilot signal to be combined with the microwave radio communication signals. A combiner(212) combines the microwave radio communication signals with the microwave pilot signal. In a receiving unit(252), the fourth frequency converter(252) converts the combined signals into the second predetermined frequency signals. The second divider(254) divides the radio communication signals of the second predetermined frequencies and the pilot signal from the second predetermined frequency combined signals from the fourth frequency converter(252). The first detector(256) detects radio communication signals of radio frequencies based on the radio communication signals of the second predetermined frequencies from the second divider(254). The second detector(258) detects the microwave pilot signal based on the pilot signal of the second predetermined frequencies from the second divider(254).
Patent KR-20010001894-A (KR)
Inventor: HUH SAM SIK
IPC: H04L12/66
Filed: 1999-06-09
Abstract: PURPOSE: A circuit for switching a DSL(Digital Subscriber Line) access multiplexer synchronous clock of an asymmetric DSL is provided to switch the synchronous clock into a slave board having a same function when a failure is generated in a master board, so as to connect a DSL access multiplexer to an ATM(Asynchronous Transfer Mode) network to smoothly transmit data and to stably operate a system. CONSTITUTION: A first and a second boards identify whether failures are generated in inputted clock signals to switch synchronous clock signals, and demultiply the inputted clock signals to output the demultiplied clock signals. A signal monitor(8) compares the clock signals to monitor states of the first and the second boards. The first board comprises as follows. A first signal checking unit(SD1:1) identifies whether a failure is generated in an inputted E1 clock signal(E1_clk). A second signal checking unit(SD2:2) identifies whether a failure is generated in an inputted STM1 clock signal. A four to one multiplexer(3) selects one of the outputted signals of the first and the second signal checking units(1,2) to output the selected signal. A three to one multiplexer(4) selects and outputs one of the E1 clock signal, the STM1 clock signal, and a local clock signal(Local_clk), by the selected signal of the multiplexer(3). A PLL(Phase Locked Loop)(5) synchronizes the outputted signal of the multiplexer(4). A duplexer(7) switches a synchronous clock, by the synchronized clock signal of the PLL(5) and inputted signals(A/S_A,MS_CBS,RESET,A/S_B). A buffer(6) buffers the synchronized clock signal by signals outputted from the duplexer(7), and outputs a synchronous clock(SYNC_OUT).
Patent KR-20010001899-A (KR)
Inventor: JUNG CHANG HUI
IPC: F24F13/00
Filed: 1999-06-09
Abstract: PURPOSE: An inlet port attachment structure is provided to achieve an improved efficiency of air conditioning by fixing a suction grille through the use of switching element. CONSTITUTION: An air conditioner comprises a cabinet(10) having a front panel(30) with an inlet port(11), and a suction grille installed within the inlet port and which protects the inlet port from foreign substances and protects an interior of the air conditioner. The cabinet has an insertion groove(21) formed at a position corresponding to a top end of the suction grille, so as to allow an insertion of the suction grille; and a switching groove(22) formed at a position corresponding to a bottom end of the suction grille, for sensing whether the suction grille is inserted or not, in such a manner that the switching groove maintains push-up state before insertion of the suction grille and is turned to push-down state after insertion of the suction grille by the weight of the suction grille . The insertion groove is formed at an outer surface of the front panel, and the switching groove is formed at an installation base(20) to be corresponded to the insertion groove.
Patent KR-20010003880-A (KR)
Inventor: CHOI YU YEONG
IPC: H02K1/12
Filed: 1999-06-25
Abstract: PURPOSE: A switched reluctance motor is provided to improve an insulation effect by preparing an insulation member interposed in a space where a winding and the yoke part are formed. CONSTITUTION: A switched reluctance motor comprises a rotator(10) and a stator(20). The rotator(10) has four rotator protrusions(13) formed so as to be opposed to each other. The stator(20) has six protrusions(21) and a core plate where six yokes(23) for connecting the protrusions(21) is formed. A winding(25) is wound at each yoke(23) by a troidal winding method. The windings(25) are connected in series along a pair of yokes(23) opposed to each other with a shaft of the stator(20) in the center.
Patent KR-20010010324-A (KR)
Inventor: PARK SE UNG
IPC: H04N5/57
Filed: 1999-07-19
Abstract: PURPOSE: A device for enhancing contrast is provided to use a histogram enhancing contrast according to brightness of images so as to enhance only contrast of data without enhancing noise. And the device enables a screen position to be set up according to a screen ratio. CONSTITUTION: A capture unit(31) stores inputted data in buckets, according to ranges during preset time. An average unit(33) averages the buckets during preset numbers of frames. A central bucket detection unit(34) detects the central bucket among preset number of pivots. A limit unit(35) limits the number of pixels inside the bucket, according to a preset limit value. A difference detection unit(36) compares a preset default value with the limit value of the limit unit(35), to detect a difference value. A balance unit(37) distributes the detected difference value to each bucket. A regeneration units(38,39) regenerate data newly inputted by generating a lookup table.
Patent KR-20010010329-A (KR)
Inventor: LEE SEUNG GYU
IPC: H04N9/31
Filed: 1999-07-19
Abstract: PURPOSE: An optical device of a liquid crystal projector is provided to use only excellent reflectors while reducing a path of blue light to reduce a brightness loss of blue light so that the brightness of a screen can be improved. And the device enables white balance to be easily regulated, as paths of red light, green light and blue light are equal. CONSTITUTION: A blue light reflection mirror(50) reflects blue light in light generated in a light source, and transmits yellow light. A red light transmission mirror(18) transmits red light in yellow light transmitting the blue light reflection mirror(50), and reflects green light. A blue-green reflection mirror reflects blue light from the blue light reflection mirror(50) to be progressed to a liquid crystal panel for blue(44), and reflects green light from the red light transmission mirror(18) to be progressed to the liquid crystal panel for green(30). First/second blue reflection mirrors(34,38) reflect blue light from the blue-green reflection mirror to be progressed to the liquid crystal panel for blue(44). A red light reflection mirror(20) reflects red light from the red light transmission mirror(18) to be progressed to a liquid crystal panel for red(24). Three light collecting lenses(22,28,40) collect light incident to the liquid crystal panels(24,30,44) in available areas of the liquid crystal panels(24,30,44).