baber/WOPTO huggingface dataset:
Patent KR-20030019322-A (KR)
IPC: E06B9/18
Filed: 2001-03-13
Abstract: 안전 창살 어셈블리는 개구를 가로질러 연장하는 다수의 창살들과 구동 체인들에 결합된 단부들을 갖는다. 창살들은 개구의 대향 면상에 위치된 2개의 채널들 사이에 연장할 수 있고, 채널들 내에서 활주할 수 있다. 창살의 단부들은 채널 내에서 유지되고 상기 단부들은 창살이 소정의 간격으로 떨어지게 유지하기 위해서 소정의 수의 링크들을 떨어져 간격을 둔 대향하는 구동 체인들에서 체인 링크로의 연결부를 가진다. 구동 장치는 채널 내의 창살이 활주하도록 구동 체인들을 이동시키기 위하여 제공될 수 있고, 개구에 인접한 저장소 영역은 창살들이 개구 위로 적절한 곳에 있지 않을 때 창살을 유지하도록 채널과 결합된다. 이송 장치는 저장된 위치와 창살 구동 체인과 창살이 맞물리는 위치 사이의 안전 창살을 이동시키기 위하여 제공된다.
Patent KR-20020087455-A (KR)
Title: 중합체
Filed: 2001-03-30
Abstract: 본 발명은 화학식 I의 단량체와 화학식 II의 단량체로부터 형성된 반복 단위를 함유하는 공중합체에 관한 것이다. 
     화학식 I 
     
       
     
     화학식 II 
     
       
     
     위의 화학식 I 및 화학식 II에서, 
     각각의 R 1 은, 존재하는 경우, 독립적으로 수소원자 또는 하이드로카빌 그룹이고, 
     r은 0, 1 또는 2이며, 
     s는 2 또는 3이고, 
     R 2 내지 R 4 는 각각 독립적으로 수소원자 또는 하이드로카빌 그룹이고, 
     R 5 및 R 6 은 각각 독립적으로 수소원자, 할로 또는 하이드로카빌이고, 
     P d   - 는 양성자 공여 그룹 P d -H로부터 양성자의 손실에 의해 형성된 음이온이고, 
     Z는 결합 또는 하이드로카빌 그룹이며, 
     R 7 및 R 8 은 각각 독립적으로 수소원자, 할로 그룹 또는 하이드로카빌 그룹이고, 
     (a) A는 전자 수용 그룹이고, W는 수소원자 또는 하이드로카빌 그룹이거나, 
     (b) W는 전자 수용 그룹이고, A는 결합 또는 하이드로카빌 그룹이거나, 
     (c) A와 W는 둘 다 전자 수용 그룹이다. 
     본 발명은 또한 화학식 I의 단량체와 화학식 II의 단량체와의 혼합물 또는 이의 비이온화된 전구체를, 바람직하게는 자외선에 노출시킴으로써 중합시켜 공중합체를 제조하는 방법을 제공한다.  본 발명은 또한 접착제, 피복재, 밀봉재 및 입체 석판 인쇄 조성물에서의 공중합체의 용도에 관한 것이다.
Patent KR-20040010040-A (KR)
IPC: H04N13/00
Filed: 2001-04-01
Abstract: 본 발명은 3D 이미지 생성 방법 및 장치에 관한 것으로, 본 발명에 따르면 근사 변수(α)를 통해 결정되는 시간 간격으로 2D 이미지의 제1 이미지 시퀀스이 이미지에 더하여 제2 이미지 시퀀스의 이미지가 생성된다. 상기 제1 이미지 시퀀스의 연속적인 이미지들 사이의 유사도(d k )가 결정되고, 스테레오 베이스 폭이 부자연 스럽게 커지지 않는 방법으로 상기 근사 변수(α)를 수정하기 위해 상기 유사도는 문턱값(δ 0 ＜δ 1 ＜δ 2 )과 비교된다. 위상 분석기(12)가 상기 제1 이미지 시퀀스의 연속적인 이미지에서 움직임의 주된 방향을 결정하는데 사용되고, 상기 제1 이미지 시퀀스의 연속적인 이미지의 움직임에 대한 주된 방향에 따라 좌우의 뷰잉 채널에 상기 제1 및 제2 이미지 시퀀스의 이미지를 인가하기 위해 위상 변환기(16)가 사용된다.
Patent KR-20040064036-A (KR)
Inventor: HONG SANG HUN
IPC: H03K5/13
Filed: 2003-01-09
Abstract: PURPOSE: An analog DLL(Delay Locked Loop) having a tracking analog-digital converter is provided to reduce the power consumption of a semiconductor device by reducing largely the operating current of the analog DLL. CONSTITUTION: An analog DLL having a tracking analog-digital converter includes a delay model, a phase comparator, a charge pump, a loop filter, a voltage control delay line, and a tracking analog-digital converter. The delay model(600) is used for modeling a buffered delay period. The phase comparator(300) is used for comparing a phase of a reference clock signal with a phase of an output signal of the delay model. The charge pump(400) is used for performing a charge pumping operation in response to an output of the phase comparator. The loop filter(500) is used for outputting the reference voltage. The voltage control delay line(200) is used for delaying the reference clock signal during the predetermined period corresponding to the reference voltage and outputting the delayed reference clock signal to the delay model. The tracking analog-digital converter(100) is used for storing the reference voltage as a digital value and outputting a tracking voltage corresponding to the stored digital value to the loop filter.
Patent KR-20040065441-A (KR)
Inventor: JANG JONG GAK
IPC: H01L21/56
Filed: 2003-01-14
Abstract: PURPOSE: A mold apparatus including a cull sensor and a molding method using the same are provided to detect easily a processing error in a molding process by sensing the thickness of cull before a degate process. CONSTITUTION: A chemical resin tubulate is pressed by a molding unit of a mold apparatus in order to surround a semiconductor chip with a chemical resin. The molded semiconductor chip and the remaining chemical resin such as a cull(32) is loaded into a degate unit of the molding unit. A processing error of a molding process is checked by sensing the thickness of the cull before the remaining chemical resin is separated from the molded semiconductor chip.
Patent KR-20040065928-A (KR)
Inventor: KIM DAE HYEON
IPC: G06K15/02
Filed: 2003-01-16
Abstract: PURPOSE: A printer with a moving picture output function and its control method are provided to automatically extract certain frames from moving picture data transmitted from an external device and to print the extracted frames. CONSTITUTION: The device comprises a print engine(280), an interface(240), an image extractor(260), an image processor(270), and a controller(290). The print engine(280) prints targeted print data. The interface(240), connectable to an external device, receives frames continuously inputted from the external device. The image extractor(260) extracts at least one key frame among the frames inputted via the interface(240). The image processor(270) converts the extracted key frame into image data which is printable at the print engine(280). The controller(290) makes the image extractor(260) extract the key frame if the moving picture is transmitted, and makes the print engine(280) print the image data if the extracted key frame is converted into the image data.
Patent KR-20030065351-A (KR)
IPC: H01R12/55
Filed: 2003-01-28
Abstract: The invention includes an interposer (101), BGA connector, or other connection device that provides electrical contact with a ball grid array connector (103). The inventive interposer (101) includes a housing (102) with contacts (105). The contacts (105) have a first end and a second end. The interposer (101) also includes a first body (106) and a second body (107) of reflowable, electrically conductive material disposed on the first end of at least one of the contacts (105). The first body (106) and the second body (107) provide an electrical contact between the interposer (101) and a single body (110) of reflowable, electrically conductive material of the ball grid array connector (103). <IMAGE>
Patent KR-20040067748-A (KR)
Title: Multi-purpose dish washer
Inventor: KIM OK SUN
IPC: A47L15/00
Filed: 2003-01-23
Abstract: PURPOSE: A multi-purpose dish washer is provided to wash dishes with driven scrubbers when it is difficult to wash dishes with hot water and the dish has uneven parts and to remove moisture from food waste. CONSTITUTION: Water is provided to a washing chamber and a spraying chamber and is divided into ordinary temperature water and hot water. A mass of driven scrubber(301) contains springs. A dish damper of silicone is formed on the ends of the spring to form a peripheral portion of the scrubber. A waste hopper(103) is formed on the upper plate of a kitchen table(100) to install a compressor or a moisture dehydrator to remove the moisture from food waste.
Patent KR-20040050696-A (KR)
Inventor: KENAGY JASON B
IPC: H04L12/28
Filed: 2003-02-14
Abstract: PURPOSE: A system for handshaking between wireless devices and a server and a method are provided to control a device access of an application available through a wireless network by data communication necessary between wireless devices and a download server, thereby minimizing access to improper software. CONSTITUTION: In a system(10), more than one wireless device(12,18,20,22) selectively communicates with a wireless network(14). Each of the wireless devices(12,18,20,22) has an end user for controlling a communication connection with the wireless network(14). The end user attempts downloading an application or data from an application download server(16). The application download server(16) has more than one resident application, selectively communicates with the wireless devices(12,18,20,22), and selectively downloads the application to the devices(12,18,20,22).
Patent KR-20040073839-A (KR)
Inventor: KIM CHUL WON
Filed: 2003-02-15
Abstract: PURPOSE: An AD(ADvertisement) method using a file view background screen on the Internet and a computer-readable recording medium for the same are provided to impress a user with a symbol or a simple AD copy such as a name, an Internet address, a logo, and an image of a company firmly and continuously, and make the user concentrate on an AD. CONSTITUTION: The AD contents made by an agreement with an advertiser or received from the advertiser are stored in the server. When the user views a file by connecting to the server, the AD contents are faintly displayed on a display device of a user computer and the file contents are overlapped/displayed on the AD contents.
Patent KR-20040074155-A (KR)
Inventor: OH SANG HO
IPC: B60S1/06
Filed: 2003-02-17
Abstract: PURPOSE: An anti-fog method of a vehicle window using an FATC(Full Automatic Temperature Control System) is provided to exactly and effectively prevent steam formed on the window by detecting rain with a rain sensor. CONSTITUTION: An anti-fog method of a vehicle window using an FATC comprising an input unit having sensors installed to inside and outside of the vehicle and a control unit for receiving signals transmitted from the input unit and feedback-controlling operations of actuators forming each air conditioning device is composed of steps for deciding if the rain is continued on for a predetermined response time with the control unit by receiving the signal input from the rain sensor and additionally forming a rain sensor(120) installed to the window to sense the rain(S102,S103); performing dehumidifying and anti-fogging operations by feedback-controlling the air conditioning devices with the control unit if it rains over the response time(S104); and deciding if the rain stops for a predetermined response time by receiving the signal from the rain sensor and completing the dehumidifying and anti-fogging operations by the control unit(S105,S107).
Patent KR-20040074259-A (KR)
Inventor: BAE SOO WON
IPC: H04B1/40
Filed: 2003-02-17
Abstract: PURPOSE: A cellular phone having an anion emission function and a deodorization function is provided to perform a function of emitting an anion and far-infrared rays as well as a deodorization/antibiotic function, thereby promoting a blood circulation and an increase of metabolism of a user. CONSTITUTION: A body(10) consists of plural keys for inputting various data. A cover portion(20) consists of a display(21) for displaying various information and operated states. A coating solution composition is coated on a surface of a cellular phone. The coating solution composition includes 0.5 to 3 weight% of Kiyoseki stone powder having less than 100 micrometers in diameter, 0.2 to 0.4 weight% of zeolite powder having less than 100 micrometers in diameter, and 96.6 to 99.3 weight% of polymer resin.
Patent KR-20040074383-A (KR)
Inventor: CHUN BYEONG SIK
IPC: E02D3/12
Filed: 2003-02-18
Abstract: PURPOSE: A high-efficiency grouting system is provided to maximize the injection efficiency by improving the permeability of injection materials and to improve constructability by forming in a one-line loading system. CONSTITUTION: The high-efficiency grouting system comprises: a site grinder crushing thick injection materials placed to a site for grouting into ultrafine particles in a site; a high-speed shear mixer(320) breaking up ultrafine corpuscular cohesive powder by adding mechanical shear strength; a four-jaw stirrer(325) injecting suspension type injection materials supplied through the high-speed shear mixer or solution type injection materials supplied to a separate line selectively; a grout pump(330) pumping up the injection materials supplied through four-jaw stirrer at the appointed pressure; stand pipe fittings(340) injecting the injection materials supplied using the grout pump to the ground; and an automatic injection management system(350) controlling the pressure, quantity and speed of injection materials injected to the ground through the stand pipe fittings automatically within the preset range.
Patent KR-20030081013-A (KR)
Title: 커넥터
IPC: H01R24/00
Filed: 2003-02-18
Abstract: 수커넥터와 암커넥터와의 거리변화가 생기지 않는 와이핑 동작을 가능하게 하고, 또한 접속대응관계를, 커넥터를 기계적으로 조작함으로써, 변경할 수 있는 커넥터를 얻는다. 수커넥터 단자(2)를 갖는 수커넥터(10a)와, 암커넥터 단자(5)를 갖는 암커넥터(10b)와, 수커넥터 보디(1) 및 암커넥터 보디(3) 중 어느 한쪽에 가동이 자유롭게 부착된 중계커넥터 단자(4)와, 수커넥터 단자(2) 및 암커넥터 단자(5)의 양쪽에 중계커넥터 단자(4)를 접촉시켜, 활주시키는 구동기구부(6)를 구비한다.
Patent KR-20040075205-A (KR)
Inventor: KIM JU YEONG
IPC: G02B21/00
Filed: 2003-02-20
Abstract: PURPOSE: An evanescent field and near field microscope using a waveguide resonator is provided to investigate optical characteristics of a sample accurately with good sensitivity and resolution and low volume. CONSTITUTION: A wave source(3) controls a frequency of a wave. A waveguide resonator(5) propagates the wave emitted from the wave source. A probe(7) is inserted by penetrating into an outer wall of the waveguide, and enables the wave to interact with the sample. And a detector detects the wave propagated through the probe and the waveguide after interaction with the sample by being propagated through the probe.
Patent KR-20030064660-A (KR)
Inventor: CHOI HYEON SU
IPC: C09J175/04
Filed: 2003-02-26
Abstract: PURPOSE: Provided is a quick moisture curing adhesive by reacting with the moisture in the air. The adhesive composition has high adhesive strength, improved heat resistance to be used on ondol floor and high moisture resistance to endure the moisture during monsoon seasons. The composition is used for PVC and rubber tiles and floor materials. CONSTITUTION: The composition comprises: 10-30wt.% of bi-functional polyether polyol with number average molecular weight of 1000-3000; 10-15wt.% of tri-functional polyether polyol with number average molecular weight of 3000-6000; 5.0-13wt.% of toluene diisocyanate, 9.5wt.% of diphenylmethane diisocyanate(MDI) and 0.5-1.0wt.% of polymeric MDI; 0.5wt.% of bi-functional glycol consisting of 1,4-butanediol; 26-30wt.% of filler containing talc; 0.2-0.5wt.% of benzoyl chloride; 0.8-1.0wt.% of sodium silico aluminate; and 9.0-10wt.% of toluene, 8.0-8.5wt.% ethylacetate and 0.5-1.0wt.% of methyl ethyl ketone. The preparation method comprises the following steps of: adding bi-functional polyether polyol and tri-functional polyether polyol into a reactor and heating to 70-120deg.C to eliminate moisture and stirring at 45-60rpm to make a homogeneous liquid; making primary polyurethane prepolymer with terminal NCO by adding diisocyanates composed of TDI, MDI and polymeric MDI and heating under atmospheric pressure and under nitrogen atmosphere at the temperature above 75deg.C for 10-14 hours, and adding bi-functional glycols and chain extenders such as ethylene glycol and 1,4-butanediol to make secondary polyurethane prepolymer; adding to the secondary polyurethane prepolymer, fillers such as talc or calcium carbonate, mixing for 2 hours and adding a reaction retarder such as benzoyl chloride and a moisture absorber such as sodium silico aluminate to make stabilized synthetic materials; and adding solvents such as toluene, ethylacetate and methyl ethyl ketone, and then mixing it for 4 hours.
Patent KR-20040077284-A (KR)
Inventor: CHO CHAN HYEONG
IPC: H01L21/28
Filed: 2003-02-28
Abstract: PURPOSE: A gate having an expanded upper area and a method for fabricating a semiconductor device having the same are provided to increase an upper area of a gate electrode by forming a wing portion on a lateral portion of an upper part of a gate poly. CONSTITUTION: The first insulating layer(12) is formed on a semiconductor substrate(10). A gate pattern(14) is formed on the semiconductor substrate. The second insulating layer is formed on the gate pattern and the semiconductor substrate. An upper surface of the second insulating layer is formed under the upper surface of the gate pattern by removing the second insulating layer. A conductive layer is formed on the second insulating layer and the upper surface of the gate pattern. A spacer(19) is formed on a lateral portion of an upper part of the gate pattern. The second insulating layer is removed therefrom.
Patent KR-20040080121-A (KR)
Inventor: GEOM YOUNG SU
IPC: A23L7/10
Filed: 2003-03-11
Abstract: PURPOSE: Provided is a rice rolled in dried laver by using mixed cereals and extract of Corbicula Japonica which is delicious and nutritious without using processed food and seasoning. CONSTITUTION: The method comprises steps of (a) preparing a mixed cereals by mixing rice, barley, sorghum, hulled millet, mung beans, red bean and soybean and soaking it in water for about 5 hours; (b) after preparing an extract of corbicula japonica by boiling down corbicula japonica, anchovy, kelp and ginseng at the temperature of 80 to 90 deg.C for about 3 hours, cooking the mixed cereals by using the prepared extract of corbicula japonica; (c) preparing inner materials of the rice rolled in dried laver from balloon flowers, codonopsis lanceolata, radish, sesame leaves, slightly boiled Saussurea, crown daisy and mushroom; (d) after preparing a sauce for the rice rolled in dried laver by mixing soybean paste, thick soypaste mixed with red pepper, anchovy powder and pressed garlic, seasoning the rice cooked with the extract with salt and sesame oil; (e) after putting the cooked rice and proper amount of the inner materials on the laver, spreading the sauce for the rice roller in dried laver thereon and rolling the laver.
Patent KR-20040082576-A (KR)
Title: Fixed apparatus for optical disc
Inventor: YOO DONG GIL
IPC: G11B17/03
Filed: 2003-03-19
Abstract: PURPOSE: An optical disk fixing device is provided to comprise various brackets where optical disks are set, and which move along a mobile trace such that various sizes of optical disks can be set, thereby easily setting the optical disks having various sizes. CONSTITUTION: A disk track(122) is used for setting an optical disk(15). Plural brackets(123) are coupled with the disk track(122) to be elastically supported, and move along a mobile trace such that the optical disk(15) having various sizes can be set. In order that the optical disk(15) can be accumulated in laminar shape, a changer is configured by comprising an elevating unit fixed to a casing while simultaneously supporting the disk track(122). The disk track(122) is in semicircular shape, and is formed with support portions(122a) to be supported in the elevating unit.
Patent KR-20030078747-A (KR)
Title: 데이터 기록 제어 장치
IPC: G11B20/10
Filed: 2003-03-28
Abstract: 본 발명은 디스크 매체의 데이터 기록 영역의 효율적인 사용을 가능하게 하는 데이터 기록 제어 장치를 제공한다.  변조 제어부(12)는 MPU(18)로부터의 기입 개시 명령 WTST를 받아 트리거 발생부(20)에 대하여 개시 트리거 허가 STEN을 상승시킨다.  트리거 발생부(20)는 개시 트리거 허가 STEN이 출력되고 있는 기간에 카운터(17)의 카운트값 CNT와 기입 개시 위치에 대응하는 값 STOS가 일치하면, 개시 트리거 ST를 상승시킨다.  이것을 받아, 8-16 변조부(11)는 파라미터 레지스터(21)에 설정된 초기값을 판독하여 이것을 데이터 변조를 위한 파라미터로서 갱신함과 함께, 이것을 이용하여 변환된 기입 데이터를 출력부(16)가 출력 데이터 SIGOUT로서 출력한다.
Patent KR-20040091915-A (KR)
Inventor: HAN KYUNG JOO
IPC: D21H17/02
Filed: 2003-04-23
Abstract: PURPOSE: A manufacturing method of oriental tissue is characterized by adding oriental medicines instead of a fluorescent brightener and a bleaching agent, removing harmfulness and preventing foul breath, gum bleeding, a discharge from the womb, discharging blood and hemorrhoids. CONSTITUTION: Oriental tissue is obtained by the steps of: removing impurities from raw materials and washing the raw materials; extracting an added solution from oriental medicines; mixing the added solution with initial tissue manufactured out of the raw materials; mixing water with the initial tissue, followed by floating the initial tissue to manufacture tissue form; drying the tissue; and then cutting and packing the tissue.
Patent KR-20040092817-A (KR)
Inventor: CHOI UNG RYEOL
IPC: B22D11/18
Filed: 2003-04-29
Abstract: PURPOSE: To provide a plug capable of suppressing inflow of slag remained in tundish in mold by throwing refractory plug into tundish at the end of continuous casting and improving actual yield of molten steel by automatically closing an injection port of the mold by specific gravity of the plug itself. CONSTITUTION: The plug is thrown into tundish at the end of continuous casting so that the plug closes a molten steel injection port by specific gravity of the plug itself according to drop of the surface level of molten steel while the plug is being floated on the upper surface of molten steel, wherein the plug has specific gravity of 3.0 to 4.7 g/cm¬3, the plug is formed in a reverse conical shape, the plug has such a size that the plug is projected as much as thickness of slag layer of tundish after closing the molten steel injection port, and diameter of a lower part of the plug is set to the range of 30 to 40 mm, and wherein the plug comprises 50 to 60 wt.% of chromium, 10 to 14 wt.% of alumina, 23 to 27 wt.% of metal shot ball, 4.5 to 5.0 wt.% of binder and a trace of other metal fiber. The method comprises a step of throwing the plug (10) onto the upper surface of molten steel through a tundish cover hole (9) on an upper part of molten steel injection port before vortex is formed in an upper part of the molten steel injection port in tundish after injecting molten steel of last ladle for continuous casting into tundish; and a step of attaching plug sensors (11a,11b) to the molten steel injection port so that sliding gate is closed by an automatic injection port closing system (12) when the plug touches the plug sensors.
Patent KR-20040095993-A (KR)
Inventor: KIM JEONG TAE
IPC: H01L21/68
Filed: 2003-05-07
Abstract: PURPOSE: A wafer chuck and a method for fixing a wafer to a wafer chuck are provided to fix easily the wafer to the wafer chuck by using plural vacuum frames and plural vacuum holes. CONSTITUTION: A semiconductor wafer chuck(1) is installed on each surface of plural vacuum frames(2) having a plurality of vacuum holes(3). A vacuum pump is connected to the vacuum hole. The wafer chuck is used for absorbing and fixing a wafer(100) by using the vacuum. The plural vacuum frames and the plural vacuum holes are uniformly distributed on a wafer loading region. The wafer is fixed to the wafer chuck by applying the vacuum to the vacuum holes.
Patent KR-20040102917-A (KR)
Inventor: KANG IN SANG
IPC: H04N5/06
Filed: 2003-05-30
Abstract: PURPOSE: An apparatus and a method for stabilizing SYNC(SYNChronization) through a SYNC generating unit are provided to make a SYNC signal to be generated forcibly, thereby capable of receiving an image with high quality continuously. CONSTITUTION: A SYNC separating member(100) receives a composite image signal, generates a vertical reset signal by separating the composite signal into the vertical SYNC and horizontal SYNC signals, composes again the vertical SYNC and horizontal SYNC signals, thereby producing a broadcasting SYNC signal. A switching member(200) receives and switches the broadcasting SYNC signal from the SYNC separating member. A microcomputer(400) receives the vertical reset signal from the SYNC separating member and generates a horizontal reset signal with the passage of constant time. A SYNC generating member(300) receives the vertical reset signal from the SYNC separating member and the horizontal reset signal from the microcomputer and then generates a SYNC signal forcibly. The forced SYNC signal is synchronized to the broadcasting SYNC signal continuously. When a fault of the broadcasting SYNC signal is sensed, the microcomputer controls the switching member, so that the broadcasting SYNC signal is converted into the forced SYNC signal.
Patent KR-20040105495-A (KR)
Inventor: SONG TAE SUN
IPC: H04N1/113
Filed: 2003-06-09
Abstract: PURPOSE: A two-dimensional optical scanning apparatus is provided to obtain a small size by using a polygonal rotating mirror extended in a longitudinal direction like a linear light source, and enable two-dimensional scanning without rotating the polygonal rotating mirror at high speed, thereby reducing power consumption and noise. CONSTITUTION: A two-dimensional optical scanning apparatus includes a linear light source(100) having a plurality of light-emitting devices(110) arranged in a longitudinal direction to emit modulated light for transmission of video information, a collimator lens(200) changing light emitted from the light-emitting devices of the linear light source to parallel beam, and a scanning means having a polygonal rotating mirror(300) extended in a longitudinal direction, the polygonal rotating mirror having a rotational axis arranged in parallel to the longitudinal direction of the light source.