KR910001563Y1 - Exposure system for manufacturing color brown tube - Google Patents
Exposure system for manufacturing color brown tube Download PDFInfo
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- KR910001563Y1 KR910001563Y1 KR2019880011037U KR880011037U KR910001563Y1 KR 910001563 Y1 KR910001563 Y1 KR 910001563Y1 KR 2019880011037 U KR2019880011037 U KR 2019880011037U KR 880011037 U KR880011037 U KR 880011037U KR 910001563 Y1 KR910001563 Y1 KR 910001563Y1
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- South Korea
- Prior art keywords
- filter
- light transmittance
- light
- exposure
- brown tube
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
- H01J9/22—Applying luminescent coatings
- H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
- H01J9/2271—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
- H01J9/2272—Devices for carrying out the processes, e.g. light houses
- H01J9/2273—Auxiliary lenses and filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2209/00—Apparatus and processes for manufacture of discharge tubes
- H01J2209/01—Generalised techniques
- H01J2209/012—Coating
- H01J2209/015—Machines therefor
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 의한 노광장치의 도식적 단면도.1 is a schematic cross-sectional view of an exposure apparatus according to the present invention.
제2도는 본 고안에 채용되는 두개의 필터 및 그에 따르는 투과율선도를 각각 도시한 것이다.2 shows two filters and their corresponding transmittance diagrams respectively employed in the present invention.
제3도는 제2도의 도시된 두개의 필터가 일정한 상대위상각을 유지한채 중첩된 상태와 그에 의한 광투과율 변화선도를 도시한 것이다.FIG. 3 shows a state where the two filters shown in FIG. 2 overlap with each other while maintaining a constant relative phase angle, and thus a light transmittance change diagram.
제4도는 한매의 필터가 채용된 종래 노광장치의 단면도.4 is a cross-sectional view of a conventional exposure apparatus employing a single filter.
제5도는 종래의 통상적인 보정필터와 그 종횡(X-Y 좌표)방향의 투과율 선도를 도시한 것이다.5 shows a conventional conventional correction filter and a transmittance diagram in the vertical and horizontal (X-Y coordinate) directions.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 캐비넷 11 : 패널안치부10 cabinet 11 panel mounting
12 : 상부격벽 13 : 하부격벽12: upper partition 13: lower partition
20 : 패널 30 : 광원부20 panel 30 light source
31 : 케이스 32 : 투광공31 case 32: floodlight
33 : 램프 40.41 : 보정필터33: lamp 40.41: correction filter
43 : 보정렌즈43: correction lens
본 고안은 칼라브라운관 제작시 패널내면의 칼라형광층을 형성하기 위한 노광장치에 관한 것으로서, 특히 노광원으로 부터 스크린형성면에 대한 조사량이 가변될 수 있도록 구성된 것에 관한 것이다.The present invention relates to an exposure apparatus for forming a color fluorescent layer on the inner surface of the panel when manufacturing a color CRT, and more particularly, to an apparatus configured to vary an irradiation amount from an exposure source to a screen forming surface.
일반적으로 칼라브라운관은 그 형광면에 형성된 단위 색세포 즉, 형광점의 형상에 따라서 도트형과 스트라이프형으로 대별되는 바, 이들은 사진형상과 유사한 가공법으로서 소정의 형상으로 형성되고 있는 것이다. 이를 상세히 설명하면 감광물질이 함유된 적, 녹, 청의 형광물질을 패널내면에 일정두깨로 도포된 후에 편향요우크에 의한 전자빔의 편광점에 위치된 노광원으로서 샤도우마스크 또는 어퍼어쳐 그릴을 통하여 도포된 형광물질의 표면을 노광한다. 그리고 그 후속되는 작업에 의해 노광부위를 제외한 잔여부위를 제거함으로써 패널 내면에 대하여 소정형상의 형광점을 형성하는 것이다. 이러한 노광 작업에 있어서, 제4도에 도시된 바와 같이 노광대상물인 브라운관의 패널(2)이 그 상부에 설치되는 노광장치(1)의 하부에 노광원(3)이 마련되는바, 패널(2)과 노광원(3)사이에 1매의 보정렌즈(5)와 1매의 보정필터(4)가 위치된다. 상기에서 보정렌즈(5)는 편향각에 의한 편향중심의 벗어남을 조정하여셔 패널내의 정확한 위치에 광점이 형성되도록 하는 것이고, 보정필터(4)는 노광원(3)으로 부터 패널 중앙부위와 그 주변간의 거리차에 의한 조사량의 차이를 보정함으로써 균일한 크기 또는 폭의 형광점(스트라이프 또는 도트)의 형성이 가능토록 하는 것이다. 여기에서 빛의 조사량을 부분적으로 보정하는 상기의 필터(4)를 더욱 상세히 설명하면, 브라운관패널내면의 중앙위에 대해서는 빛의 조사량을 적게하고, 반면에 그 주변에 대해서는 점차적으로 조사량을 크게 할수 있도록 하기 위하여 필터(4)는 제5도에 도시된 바와 같이 빛의 위상을 제어하여 빛의 투과량을 제어하는 편광필터와 유사한 형태로서 그 몸채의 X-Y 좌표상에서 중앙부위가 가장 광투과율이 낮고 그 주변으로 점점 높아지도록 금속이 증착되어 있다. 이와 같은 필터는 그 광투과율 특성이 제작당시에 설정되기 때문에, 특정제원의 브라운관마다 그 특성을 달리하는 각각의 피터가 구비되어야 한다.In general, the color CRTs are roughly divided into dot and stripe shapes according to the unit color cells formed on the fluorescent surface, that is, the fluorescence point, and they are formed in a predetermined shape by a processing method similar to the photographic shape. In detail, the red, green, and blue fluorescent materials containing photosensitive materials are applied to the inner surface of the panel with a predetermined thickness, and then applied through a shadow mask or an aperture grill as an exposure source located at the polarization point of the electron beam by the deflection yoke. The surface of the fluorescent substance is exposed. Subsequently, by removing the remaining portions except for the exposed portions by the subsequent work, a fluorescent spot having a predetermined shape is formed on the inner surface of the panel. In this exposure operation, as shown in FIG. 4, an exposure source 3 is provided in the lower part of the exposure apparatus 1 in which the panel 2 of the CRT as an exposure object is provided on the upper part. ) And the correction lens 5 and the correction filter 4 are positioned between the light source and the exposure source 3. The correction lens 5 adjusts the deviation of the deflection center due to the deflection angle so that light spots are formed at the correct position in the panel, and the correction filter 4 is formed from the exposure source 3 and the center of the panel. By correcting the difference in the irradiation amount due to the distance difference between the peripheries, it is possible to form fluorescent points (stripes or dots) of uniform size or width. Herein, the filter 4 for partially correcting the dose of light will be described in more detail, so that the dose of light is reduced at the center of the inside of the CRT panel, while the dose is gradually increased at the periphery thereof. The filter 4 is similar to the polarization filter that controls the light transmission by controlling the phase of light as shown in FIG. 5, and the central part has the lowest light transmittance on the XY coordinates of the body, The metal is deposited to be high. Since such light transmittance characteristics are set at the time of manufacture, each filter having different characteristics must be provided for each CRT of a specific specification.
즉 종래에는 브라운관의 크기(특히 화면의 크기)에 따라서 제4도에 도시된 바와 같이 광투과율의 조정이 불가능한 필터(4)가 설치되기 때문에 브라운관의 종류가 바뀔때마다 필터를 교체해야 하는 번거로움이 있고 특히 특정 브라운관에 대한 광투과율이 적정하게 허용될 수 있도록 새로운 종류의 브라운관이 생산될 때마다 매번 필터를 새로이 제작하여야 하는 문제가 있었다.In other words, conventionally, as shown in FIG. 4, the filter 4, which is impossible to adjust the light transmittance, is installed according to the size of the CRT (particularly, the size of the screen), so that the filter has to be replaced every time the type of CRT is changed. In particular, there is a problem in that a filter must be newly produced every time a new type of CRT is produced so that light transmittance of a specific CRT can be appropriately allowed.
따라서 본 고안은 일정빔위의 광투과율 조절이 가능하도록 되어서 필터의 교체없이도 다종의 브라운관에 대한 노광작업이 가능하도록 된 칼라브라운관 제작을 노광장치를 제공함에 그 목적이 있다.Therefore, an object of the present invention is to provide an exposure apparatus for manufacturing a color brown tube, which enables light transmittance on a predetermined beam to be exposed to a variety of CRTs without replacing a filter.
그리고 본 고안의 다른 목적은 생산성향상 및 제품 제조단가의 절감을 기할수 있도록 하는 칼라브라운관 제작용 노광장치를 제공함에 있다.In addition, another object of the present invention is to provide an exposure apparatus for manufacturing a color brown tube for improving productivity and reducing a manufacturing cost of a product.
상기의 목적들을 달성하기 위하여 본 고안은, 노광대상물인 패널과 노광원 사이에 위치되어서 광투과량을 조절하도록 하는 보정 필터를 종래와는 달리 광두과율을 달리하는 2매가 1군을 이루는 제1필터와 제2필터로 분리 형성하되, 일측 필터에 대하여 타특 필터가 일정각도의 회전이 가능토록 설치함으로써 상기 필터의 위상각도의 상대적인 차이에 의해 광투과량이 일정범위내에서 조절 되도록 구성된 점에 특징이 있다.In order to achieve the above objects, the present invention provides a correction filter which is positioned between a panel and an exposure source, which is an object to be exposed, so as to adjust light transmittance, unlike a conventional filter, a first filter having two groups having different light transmittances, Separately formed by the second filter, it is characterized in that the light transmittance is controlled within a certain range by the relative difference of the phase angle of the filter by installing the other filter to allow the rotation of a certain angle with respect to one filter.
이하 첨부된 도면에 예시된 실시예를 통하여 본 고안을 더욱 상세히 설명한다.Hereinafter, the present invention will be described in more detail with reference to the embodiments illustrated in the accompanying drawings.
제1도에 도시된 바와 같이 하나의 상자형으로 된 노광기의 캐비넷(10)의 상부에 노광대상물인 브라운관의 패널(20)이 위치되는 안치대(11)가 마련되고, 그 내측중앙의 상하에는 각각 일정 각격의 격벽 (12)(13)이 마련된다. 그리고 상기의 하부 격벽(13)의 중앙애는 상방으로의 투광공(32)이 형성된 램프케이스(31)가 마련되고 그 내부에 고휘도의 수은램프(33)가 내장된다. 한편 상부 격벽(12)에는 광투과 평면상에 놓인 매의 보정필터(40)(41)와 1매의 보정렌즈(42)가 일정간격으로 중첩되게 설치된다. 한편 상기한 2매의 보정필터(40)(41)는 각각 상이한 광투과율을 갖도록 금속이 증착되는 바, 제2도에 도시된 바와 같이, 필터(40)(41)의 중심으로부터의 좌우 횡방향, 즉 Y좌표상으로 광투과율이 증가됨과 아울러, 도시되어 있지 않지만은 통상의 것과 마찬가지로 상. 하 종방향, 즉 X좌표상으로도 상기와 동일하거나 비슷한 광투과율변화를 가짐은 물론이다.As shown in FIG. 1, a support stand 11 in which a panel 20 of a CRT as an object to be exposed is positioned is provided on an upper part of the cabinet 10 of a box-shaped exposure machine, and above and below the inner center thereof. Each of the partition walls 12 and 13 at regular intervals is provided. In the center of the lower partition 13, a lamp case 31 having a light transmitting hole 32 upward is provided, and a high-brightness mercury lamp 33 is embedded therein. On the other hand, the upper correction wall 12 is provided so that the correction filter 40, 41 and the correction lens 42 of the sheet on the light transmission plane overlap each other at a predetermined interval. Meanwhile, the two correction filters 40 and 41 are each deposited with metal having different light transmittances. As shown in FIG. 2, left and right transverse directions from the center of the filter 40 and 41 are shown. That is, while the light transmittance is increased on the Y coordinate, and not shown, the image is the same as usual. Of course, it has the same or similar light transmittance change in the lower longitudinal direction, that is, the X coordinate.
상기와 동일하거나 비슷한 광투광율변화를 가짐은 물론이다.Of course, it has the same or similar light transmittance change as described above.
그리고 이들 두매의 필터(40) (41)는 상기한 노광기의 상부 격벽(12)에 설치됨에 있어서 일측필터에 대하여 타측필터가 최소한 45°각도 회전될 수 있도록 설치된다.In addition, the two filters 40 and 41 are installed in the upper partition 12 of the exposure machine so that the other filter can be rotated by at least 45 ° with respect to the one filter.
이와 같이 2매 1군으로 된 보정필터(40)(41)가 채용된 본 고안은 이들의 상대 위상각 차이에 의해 광투량을 조절이 가능케 된다.As such, the present invention employing the correction filters 40 and 41 constituted by two elements in one group enables the light dose to be adjusted by their relative phase angle differences.
즉 제3도에 도시된 바와 같이 두개의 필터(40) (4l) 가 중첩된 상태에 필터간의 상대 위상각이 θ만큼(45°이내)취해졌을 때 각 필터(40)(41)의 투과량의 증가값을 가지는 광투과율을 얻을수 있다.That is, as shown in FIG. 3, when the relative phase angle between the filters is taken by θ (within 45 °) in a state where two filters 40 and 4l overlap, the permeation amount of each filter 40 and 41 is determined. The light transmittance with increasing value can be obtained.
이는 광투과율이 낮은 필터의 간섭에 의해 광투과율이 높은 필터의 광투과중심 주변에 대한 투과율이 무단계로 조절 되기 때문인 것이다.This is because the transmittance around the light transmission center of the high light transmittance filter is adjusted steplessly by the interference of the low light transmittance filter.
즉 본 고안에 의하면 브라운관 페널의 내면 중싱부에 대한 조사량의 변화는 작고 다단 그 주변의 조사량이 가변된다.In other words, according to the present invention, the change in the irradiation amount of the inner wall heavy portion of the CRT is small and the irradiation amount around the multi-stage is variable.
상기와 같은 본 고안에 의하면 중래와 같이 마종의 브라운관에 대하여 각각의 전용보정필터가 구비되어야하는 문제점과 그에 수반되는 불이익이 해결된다. 물론 광투과량의 조절범위에 따라서 적용범위가 한정되겠지만 이는 필터의 증착정도에 따라서 충분한 가변범위의 확보가 가능할 것이다.According to the present invention as described above, the problem that each dedicated correction filter should be provided for the Chongjong tube as in the middle and the accompanying disadvantages are solved. Of course, the application range will be limited according to the adjustment range of the light transmittance, but it will be possible to secure a sufficient variable range depending on the degree of deposition of the filter.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880011037U KR910001563Y1 (en) | 1988-07-06 | 1988-07-06 | Exposure system for manufacturing color brown tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019880011037U KR910001563Y1 (en) | 1988-07-06 | 1988-07-06 | Exposure system for manufacturing color brown tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR900003770U KR900003770U (en) | 1990-02-08 |
| KR910001563Y1 true KR910001563Y1 (en) | 1991-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019880011037U Expired KR910001563Y1 (en) | 1988-07-06 | 1988-07-06 | Exposure system for manufacturing color brown tube |
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|---|---|
| KR (1) | KR910001563Y1 (en) |
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1988
- 1988-07-06 KR KR2019880011037U patent/KR910001563Y1/en not_active Expired
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| Publication number | Publication date |
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| KR900003770U (en) | 1990-02-08 |
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