KR900003640Y1 - Reading apparatus for fix - Google Patents

Reading apparatus for fix Download PDF

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Publication number
KR900003640Y1
KR900003640Y1 KR2019860016046U KR860016046U KR900003640Y1 KR 900003640 Y1 KR900003640 Y1 KR 900003640Y1 KR 2019860016046 U KR2019860016046 U KR 2019860016046U KR 860016046 U KR860016046 U KR 860016046U KR 900003640 Y1 KR900003640 Y1 KR 900003640Y1
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KR
South Korea
Prior art keywords
document
light source
light
supplied
center
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Application number
KR2019860016046U
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Korean (ko)
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KR880008895U (en
Inventor
이진갑
Original Assignee
주식회사 금성사
구자학
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Priority to KR2019860016046U priority Critical patent/KR900003640Y1/en
Publication of KR880008895U publication Critical patent/KR880008895U/en
Application granted granted Critical
Publication of KR900003640Y1 publication Critical patent/KR900003640Y1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/024Details of scanning heads ; Means for illuminating the original
    • H04N1/028Details of scanning heads ; Means for illuminating the original for picture information pick-up
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00567Handling of original or reproduction media, e.g. cutting, separating, stacking
    • H04N1/0057Conveying sheets before or after scanning
    • H04N1/00599Using specific components
    • H04N1/00602Feed rollers

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

내용 없음.No content.

Description

원고 독취장치Document Reader

제1도는 종래장치의 구성을 보인 개략도.1 is a schematic view showing the configuration of a conventional apparatus.

제2도는 형광등에 조사된 원고면의 조도 분포도.2 is an illuminance distribution of the original surface irradiated with fluorescent lamps.

제3도는 본 고안 장치의 구성을 보인 개략도.Figure 3 is a schematic diagram showing the configuration of the device of the present invention.

제4도는 본 고안의 요부인 반사판의 구성을 보인 사시도.4 is a perspective view showing the configuration of a reflecting plate which is the main part of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 급지로울러 2 : 원고1: Feed roller 2: Document

3 : 송출로울러 4 : 배지로울러3: delivery roller 4: release roller

5 : 광원 6 : 결상렌즈5 light source 6 imaging lens

7 : 독취소자 8 : 반사판7: Reading element 8: Reflector

8a: 반사면 8b : 구멍8a: reflective surface 8b: hole

본 고안은 팩시밀리등의 화상입력장치에 사용되는 원고독취 장치에 관한 것으로, 특히 중앙에서 양단부로 점점 좁아지는 구멍을 중앙부에 가지는 반사판을 광원에 설치하여 원고면에 조사되는 광원의 조도 불균일 현상을 방지할 수 있게한 원고 독취장치에 관한 것이다.The present invention relates to a document reading apparatus used for an image input apparatus such as a facsimile, and in particular, by installing a reflecting plate having a hole in the center, which is gradually narrowed from the center to the light source, the unevenness of light source irradiated onto the original surface is eliminated. The present invention relates to a document reading apparatus that can be prevented.

종래에는 제1도에 그 개략적인 구성을 보인 바와같이 급지로을러(1)로부터 공급되는 원고(2)가 송출로울러(3)를 거쳐 배지로울러(4)로 공급되는 경로를 갖게되고, 송출로울러(3)와 배지로울러(4) 사이에는 원고(2)에 빛을 주사하는 광원(5)이 설치되어 있어서 광원(5)으로부터 주사되는 빛이 원고(2)에서 반사되어 결상렌즈(6)를 통과한 후 평면주사형 독취소자(7)에 입사되도록 구성되어있다.In the related art, as shown in FIG. 1, the document 2 supplied from the paper feed roller 1 has a path to be fed to the discharge roller 4 via the feed roller 3, and the feed roller is shown in FIG. Between (3) and the discharge roller (4), a light source (5) for scanning light onto the document (2) is provided so that the light scanned from the light source (5) is reflected from the document (2) and the imaging lens (6) is opened. After passing through, it is configured to be incident on the planar scanning type reading element 7.

이와같은 종래의 장치에 있어서는 광원(5)으로서 형광등을 주로 사용하고 있는데 형광등은 다른 광원에 비하여 소비전력이 낮다는 이점이 있으나 큰 출력을 얻을 수 없는 결점이 있고, 제2도에서 도시한 바와같이 광원의 양단부에는 광량저하가 켜서 원고면에 광의 주사가 불균일하게 되는 문제점이있다.In such a conventional apparatus, a fluorescent lamp is mainly used as the light source 5, but the fluorescent lamp has the advantage of lower power consumption than other light sources, but has a drawback in that a large output cannot be obtained, as shown in FIG. There is a problem in that light reduction is turned on at both ends of the light source so that the scanning of light on the original surface is uneven.

본 고안의 종래의 이와같은 문제점을 감안하여 안출한 것으로, 중앙부에 길이방향으로 세장형의 구멍을 가지는 반사판을 광원과 광학계 사이에 설치하여 형광등 으로된 광원의 광량을 증가시킬 수 있도록 한 것인바, 이를 첨부 도면에 의하여 상세히 설명하면, 다음과 같다.In view of such a problem of the prior art of the present invention, a reflection plate having an elongated hole in the longitudinal direction at the center is installed between the light source and the optical system to increase the amount of light of the light source made of fluorescent lamps, This will be described in detail with reference to the accompanying drawings.

제3도 및 제4도에 도시한 바와같이, 급지로울러(1)에 의하여 공급되는 원고(2)가 송출로울러(3)을 거쳐 배지로울러(4)에 공급되고, 광원(5)으로부터 조사되는 빛이 원고(2)에 반사되도록 결상렌즈(6)을 통과한 후 독취소자(7)에 입사되도록 구성되는 통상의 원고 독취장치에 있어서, 내주면에 원호상의 반사면(8a)을 가지는 반사판(8)을 광원(5)의 길이와 같은 길이를 가지도록 형성하여 그 중앙부의 길이방향에는 상기 원고(2)의 폭과같은 길이를 가지는 세장형의 구멍(8b)을 중앙에서 양단부로 점점 좁아지도록 형성하고, 이와같이된 반사판(8)을 광원(5)의 일축에 설치하여 구멍(8b)이 광원(5)과 결상렌즈(6)사이의 일직선상에 위치하도록 한 것이다.As shown in FIG. 3 and FIG. 4, the document 2 supplied by the feed roller 1 is supplied to the discharge roller 4 via the feed roller 3, and irradiated from the light source 5 In a conventional document reading device configured to pass through an imaging lens 6 so that light is reflected on the document 2 and then enter the reading element 7, a reflection plate having an arcuate reflecting surface 8a on its inner circumferential surface ( 8) is formed to have the same length as the length of the light source 5 so that the elongated hole 8b having the same length as the width of the original 2 in the longitudinal direction thereof becomes narrower from the center to both ends. The reflection plate 8 is formed on one axis of the light source 5 so that the hole 8b is located in a straight line between the light source 5 and the imaging lens 6.

이와같이 구성되는 본 고안은 급지로울러(1)로부터 공급되어 송출로울러(3)를 통과한 원고(2)에 공지좌 같이 광원(5)의 빛 일부가 조사되어 반사되고 이와동시에 원호상으로 만곡되는 반사판(8)의 반사면(8a)에 광원(5)의 빛 일부가 모아진 상태에서 원고(2)의 폭방향 전부위에 조사된다.The present invention configured as described above is a reflector plate which is supplied from the paper feed roller 1 and passed through the feed roller 3 to a part of the light 2 of the light source 5 that is irradiated and reflected, such as a well-known seat, and is curved in an arc shape at the same time. In the state where a part of the light of the light source 5 was collected on the reflective surface 8a of (8), it irradiates over the width direction whole of the document 2.

이와같이 원고(2)에 조사된 빛은 반사판(8)의 중앙에 길이방향으로 형성된 구멍(8b)을 통과하여 결상렌즈(6)에 전달된 다음 독취소자(7)에 입사되는 것이다.In this way, the light irradiated onto the document 2 is transmitted to the image forming lens 6 through the hole 8b formed in the longitudinal direction in the center of the reflecting plate 8 and then incident on the reading element 7.

이때 반사판(8)에 의하여 모아지는 광원(5)의 빛은 반사판(8)에 형성한 구멍(8b)이 중앙부에는 넓은 폭을 가지면서 양단부로 갈수록 좁아지는 형상을 하고 있으므로 그 반사되는 광량이 중앙부보다 양단부로 갈수록 많아지게 되어 원고(2)에 반사되는 조도분포가 균일해지는 것이다. 이러한 조도분포를 그래프상에 별도로 도시 하지는 않았으나 제2도를 참조하여 설명하면 중앙부와 양단부에 조도의 차이가 거의 없는 직선상의 그래프를 보일 것이다.At this time, the light of the light source 5 collected by the reflector 8 has a shape in which the hole 8b formed in the reflector 8 has a wide width in the center and narrows toward both ends, so that the amount of reflected light is centered. The more the both ends, the more the roughness distribution reflected on the document 2 becomes uniform. Although the illuminance distribution is not shown separately on the graph, it will be described with reference to FIG. 2 to show a straight line graph with little difference in illuminance at the center and both ends.

이상에서 상술한 바와같이 본 고안은 간단한 구조의 반사판(8)을 설치해줌으로써 원고(2)에 조사되는 광량을 증가시켜 약8-10%정도의 조도 증가효과를 갖게됨과 아울러 광원(5)의 출량상승효과를 상대적으로 갖게되며, 또한 반사판(8)의 중앙부에 형성한 구멍(8b)은 반사면(8a)의 반사도에 차이를 주게되므로 종래와같이 원고(2)의 중앙에서 양단부로 갈수록 조도가 낮아지는 현상을 방지하여 원고(2)의 폭방향 전부위에 균일하게 조사되게 하므로 광량차에 의한 선명도의 저하현상을 방지해주는 효과를 갖게된다.As described above, the present invention increases the amount of light irradiated onto the document 2 by providing the reflector 8 having a simple structure, thereby increasing the illuminance of about 8-10% and outputting the light source 5. Since the hole 8b formed in the center of the reflector 8 has a synergistic effect, the reflectivity of the reflecting surface 8a is different. It is possible to prevent the phenomenon that the lowering is uniformly irradiated over the entire width direction of the document (2) has the effect of preventing the degradation of the sharpness caused by the light quantity difference.

Claims (1)

급지로울러(1)에 의하여 공급되는 원고(2)가 송출로울러(3)를 거쳐 배지로울러(4)에 공급되고, 광원(5)으로부터 조사되는 빛이 원고(2)에 반사되어 결상렌즈(6)를 통과한 후 독취소자(7)에 입사되도록 구성되는 원고 독취장치에 있어서, 내주변에 원호상의 반사면(8a)을 가지고 중앙부 길이방향에는 상기 원고(2)의 폭과 같은 길이를 가지는 구멍(8b)이 중앙에서 양단부로 점점 좁아지도록 형성되는 원호상 단면의 반사판(8)을 상기 광원(5)의 일측에 설치하여 구성함을 특징으로 하는 원고 독취장치.The document 2 supplied by the paper feed roller 1 is supplied to the discharge roller 4 via the delivery roller 3, and the light irradiated from the light source 5 is reflected on the document 2 to form an imaging lens 6 In the document reading apparatus configured to be incident on the reading element 7 after passing through), it has an arcuate reflecting surface 8a at its inner periphery and a length equal to the width of the document 2 in the central longitudinal direction. An original reading device, characterized in that a reflection plate (8) having an arcuate cross section is formed on one side of the light source (5) so that the hole (8b) is gradually narrowed from the center to both ends.
KR2019860016046U 1986-10-21 1986-10-21 Reading apparatus for fix KR900003640Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019860016046U KR900003640Y1 (en) 1986-10-21 1986-10-21 Reading apparatus for fix

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019860016046U KR900003640Y1 (en) 1986-10-21 1986-10-21 Reading apparatus for fix

Publications (2)

Publication Number Publication Date
KR880008895U KR880008895U (en) 1988-06-30
KR900003640Y1 true KR900003640Y1 (en) 1990-04-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019860016046U KR900003640Y1 (en) 1986-10-21 1986-10-21 Reading apparatus for fix

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Publication number Publication date
KR880008895U (en) 1988-06-30

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