JPH05101774A - Assembly of liquid cooled type cathode-ray tube - Google Patents
Assembly of liquid cooled type cathode-ray tubeInfo
- Publication number
- JPH05101774A JPH05101774A JP26063691A JP26063691A JPH05101774A JP H05101774 A JPH05101774 A JP H05101774A JP 26063691 A JP26063691 A JP 26063691A JP 26063691 A JP26063691 A JP 26063691A JP H05101774 A JPH05101774 A JP H05101774A
- Authority
- JP
- Japan
- Prior art keywords
- panel
- ray tube
- cathode ray
- frame body
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、プロジェクタ用の液冷
型陰極線管の組立方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for assembling a liquid cooled cathode ray tube for a projector.
【０００２】[0002]
【従来の技術】赤、緑及び青の単色陰極線管をインライ
ンに配置し、各単色陰極線管の前面に配した投射レンズ
系によりスクリーン上に結像させるビデオプロジェクタ
が提案されている。図１０は、従来の代表的なプロジェ
クタ用の液冷型陰極線管を示す。同図において、１は単
色陰極線管、２は陰極線管１のパネル９前面に液密的に
取着され冷却液３を封入した枠体、４は投射レンズ本体
即ち主レンズ５を有した投射レンズ鏡筒を示す。枠体２
には、投射レンズ系の最終レンズ６が一体に取付けられ
ている。この最終レンズ６は、球面板で構成され、鏡筒
４から分離されている。冷却液３はパネル９の前面と枠
体２と最終レンズ６で囲まれた空間内に封入される。な
お、７はパネル９の内面に形成された単色蛍光体層であ
る。このように構成した各赤、緑、青の単色陰極線管１
は、インライン配列される。2. Description of the Related Art A video projector has been proposed in which red, green and blue monochromatic cathode ray tubes are arranged in-line and an image is formed on a screen by a projection lens system arranged in front of each monochromatic cathode ray tube. FIG. 10 shows a conventional liquid-cooled cathode ray tube for a typical projector. In the figure, 1 is a monochromatic cathode ray tube, 2 is a frame body that is liquid-tightly attached to the front surface of the panel 9 of the cathode ray tube 1 and contains a cooling liquid 3, and 4 is a projection lens body, that is, a projection lens having a main lens 5. A lens barrel is shown. Frame 2
The final lens 6 of the projection lens system is integrally attached to the. The final lens 6 is composed of a spherical plate and is separated from the lens barrel 4. The cooling liquid 3 is enclosed in the space surrounded by the front surface of the panel 9, the frame body 2 and the final lens 6. Reference numeral 7 is a monochromatic phosphor layer formed on the inner surface of the panel 9. Red, green and blue monochromatic cathode ray tubes 1 constructed in this way
Are arranged inline.
【０００３】この様なプロジェクタ用の液冷型陰極線管
１においては、最終レンズ６を鏡筒４から分離し、液冷
部７を組付けた状態の陰極線管１と、鏡筒４とを別々に
取扱うことによってレンズ交換や液冷部７の組立てが容
易となるものである。In such a liquid-cooled cathode ray tube 1 for a projector, the final lens 6 is separated from the lens barrel 4, and the cathode-ray tube 1 in which the liquid cooling part 7 is assembled is separated from the lens barrel 4. The lens replacement and the assembling of the liquid cooling unit 7 are facilitated by handling the above.
【０００４】一方、プロジェクタの小型化、すなわちプ
ロジェクタのキャビネットの奥行の薄型化の開発が進め
られており、これが為、陰極線管１としては、平板状パ
ネルに代えて、図９に示すようにパネル９内面を内方に
突出する曲面（即ち球面）９ａとしたものが提案されて
いる。この陰極線管１によれば、パネル９自体の曲面９
ａによって光に対する指向性がつき、所謂レンズ的な役
割をはたすことになり、光が内側に向かい、投射レンズ
系全体の焦点距離が短くなることによって陰極線管１か
らスクリーン（図示せず）までの光路長が短くなり、プ
ロジェクタのキャビネット奥行を短くすることができ
る。On the other hand, development of downsizing of the projector, that is, thinning of the depth of the cabinet of the projector is in progress, and for this reason, as the cathode ray tube 1, instead of a flat panel, a panel as shown in FIG. It has been proposed that the inner surface 9 has a curved surface (that is, a spherical surface) 9a protruding inward. According to this cathode ray tube 1, the curved surface 9 of the panel 9 itself
Since a has a directivity to light due to a and plays a so-called lens-like role, the light goes inward, and the focal length of the entire projection lens system becomes short, so that the cathode ray tube 1 to the screen (not shown) The optical path length is shortened, and the projector cabinet depth can be shortened.
【０００５】[0005]
【発明が解決しようとする課題】従来の平板状パネルを
使用した液冷型陰極線管では、ラスター中心と投射レン
ズ系の中心とがずれた場合、ラスターの位置を移動させ
ることで投射レンズ系の中心にラスター中心を合わせる
ことができ、光学的な問題を排除してきた。In a conventional liquid-cooled cathode ray tube using a flat panel, when the center of the raster is deviated from the center of the projection lens system, the position of the raster is moved to move the projection lens system. The raster center can be aligned with the center, eliminating optical problems.
【０００６】しかし乍ら、パネル内面を球面９ａとなし
たパネル９を使用した液冷型陰極線管１では、ラスター
を移動することが不可能に近い。即ち、パネル９の球面
中心にラスター中心が合っていないと、光軸が傾き、レ
ンズの収差等によりスクリーン上でのフォーカス特性に
影響を及ぼすことになる。具体的にはスクリーンのコー
ナ部でのフォーカス焦点のアンバランスが生じる。さら
にパネル９と最終レンズ６及び主レンズ５との光軸も合
わせないと同様にフォーカス特性にばらつきが生じる。However, it is almost impossible to move the raster in the liquid-cooled cathode ray tube 1 using the panel 9 whose inner surface is the spherical surface 9a. That is, if the raster center is not aligned with the center of the spherical surface of the panel 9, the optical axis is tilted, and the focus characteristics on the screen are affected by lens aberration and the like. Specifically, an imbalance of focus and focus occurs at the corners of the screen. Further, if the optical axes of the panel 9 and the final lens 6 and the main lens 5 are not aligned with each other, the focus characteristics also vary.
【０００７】一方、冷却液３を封入する枠体２の加工精
度により、枠体２のパネル９側の端面２Ａと最終レンズ
６を配する側の端面２Ｂの平行度にばらつきが生じる。
この場合、枠体２の端面２Ａとパネル９の前面を対接し
て一体化した場合、パネル９の球面９ａと最終レンズ６
の光軸がずれて、上記に同様な光学的問題が生ずる。特
に、パネル９前面と枠体２をネジどめ等によって組立る
ときは、パネル９と最終レンズ６の光軸を精度良く合わ
せることができない。On the other hand, due to the processing accuracy of the frame body 2 for enclosing the cooling liquid 3, the parallelism between the end surface 2A of the frame body 2 on the panel 9 side and the end surface 2B on the side where the final lens 6 is arranged varies.
In this case, when the end surface 2A of the frame body 2 and the front surface of the panel 9 are contacted and integrated, the spherical surface 9a of the panel 9 and the final lens 6 are integrated.
The optical axis of the optical disc shifts, and the same optical problem as described above occurs. Particularly, when the front surface of the panel 9 and the frame body 2 are assembled by screwing or the like, the optical axes of the panel 9 and the final lens 6 cannot be accurately aligned.
【０００８】本発明は、上述の点に鑑み、陰極線管のパ
ネル前面と冷却液封入用の枠体との組立精度を上げ、パ
ネル及び投射レンズの光軸の精度を向上させた液冷型陰
極線管の組立方法を提供するものである。In view of the above points, the present invention improves the assembling accuracy of the panel front surface of the cathode ray tube and the frame for enclosing the cooling liquid, and improves the accuracy of the optical axes of the panel and the projection lens. A method of assembling a tube is provided.
【０００９】[0009]
【課題を解決するための手段】本発明は、陰極線管１の
パネル前面に冷却液３が封入される枠体１２を取着する
液冷型陰極線管の組立方法において、治具３１の水平基
準面３２ａに枠体１２のレンズ６が配される側の端面１
７ａ、１８ａ、１９ａを対接するように枠体１２を載置
し、治具３１の水平基準面３２ａより垂直に突出する基
準突き当て部材３３の先端に陰極線管１のパネル９前面
を突き当てて、陰極線管のパネル９前面と枠体１２の上
記端面１７ａ、１８ａ、１９ａを平行に位置決めし、陰
極線管１のパネル９前面に枠体１２を取着するようにな
す。According to the present invention, in a method of assembling a liquid-cooled cathode ray tube in which a frame body 12 containing a cooling liquid 3 is attached to the front surface of a panel of the cathode ray tube 1, a horizontal reference of a jig 31 is used. The end face 1 on the side where the lens 6 of the frame 12 is arranged on the face 32a
The frame body 12 is placed so that 7a, 18a, and 19a are in contact with each other, and the front surface of the panel 9 of the cathode ray tube 1 is abutted against the tip of the reference abutting member 33 that vertically protrudes from the horizontal reference surface 32a of the jig 31. The panel 9 front surface of the cathode ray tube and the end surfaces 17a, 18a, 19a of the frame body 12 are positioned in parallel, and the frame body 12 is attached to the panel 9 front surface of the cathode ray tube 1.
【００１０】また、本発明は、上記の取着に際して、陰
極線管１のパネル９前面に接着剤層４４を介して枠体１
２を取着するようになす。Further, according to the present invention, at the time of the above attachment, the frame body 1 is provided on the front surface of the panel 9 of the cathode ray tube 1 with the adhesive layer 44 interposed therebetween.
Make sure to attach 2.
【００１１】さらに、本発明においては、パネル内面が
曲面９ａとされた陰極線管１のパネル前面に冷却液３が
封入される枠体１２を取着する液冷型陰極線管の組立方
法において、パネル９の曲面９ａの中心Ｐ2 を求め、こ
の曲面中心Ｐ2 を枠体１２が載置された治具３１上の基
準中心に合わせるように陰極線管１を治具３１上に位置
決めし、陰極線管１のパネル前面に枠体１２を取着する
ようになす。Further, according to the present invention, in the method for assembling a liquid-cooled cathode ray tube, the frame 12 in which the cooling liquid 3 is sealed is attached to the panel front surface of the cathode ray tube 1 whose inner surface is the curved surface 9a. The center P 2 of the curved surface 9a of 9 is obtained, and the cathode ray tube 1 is positioned on the jig 31 so that the center P 2 of the curved surface is aligned with the reference center on the jig 31 on which the frame 12 is placed. The frame 12 is attached to the front surface of the panel 1.
【００１２】[0012]
【作用】本発明においては、治具３１の水平基準面３２
ａに枠体１２のレンズ６が配される側の端面１７ａ、１
８ａ、１９ａを対接させると共に、治具３１の水平基準
面３２ａより垂直に突出する基準突き当て部材３３の先
端に陰極線管１のパネル前面を突き当てることにより、
陰極線管１のパネル前面と枠体１２の上記端面１７ａ、
１８ａ、１９ａが互い平行に位置決めされる。この状態
で陰極線管１のパネル前面に枠体１２を取着することに
より、陰極線管１と枠体１２の組立精度が上がり、パネ
ル内面と投射レンズ系の光軸の精度が向上する。In the present invention, the horizontal reference plane 32 of the jig 31 is used.
end surfaces 17a of the frame 12 on which the lens 6 is arranged, a
8a and 19a are brought into contact with each other, and the panel front surface of the cathode ray tube 1 is abutted against the tip of a reference abutting member 33 which vertically projects from the horizontal reference surface 32a of the jig 31,
The panel front surface of the cathode ray tube 1 and the end surface 17a of the frame body 12,
18a, 19a are positioned parallel to each other. By mounting the frame body 12 on the front surface of the panel of the cathode ray tube 1 in this state, the accuracy of assembling the cathode ray tube 1 and the frame body 12 is increased, and the accuracy of the inner surface of the panel and the optical axis of the projection lens system is improved.
【００１３】また、パネル９前面と枠体１２間の取着に
際し、接着剤４４を介して両者を接着することにより、
枠体１２の加工精度のばらつきが接着剤層４４によって
吸収され、陰極線管１のパネル前面と枠体１２のレンズ
６の配される側の端面との平行度が得られた状態で確実
に取着することができる。When the front surface of the panel 9 and the frame body 12 are attached to each other, they are adhered to each other with an adhesive 44,
The variation in the processing accuracy of the frame body 12 is absorbed by the adhesive layer 44, and the parallelism between the front surface of the panel of the cathode ray tube 1 and the end surface of the frame body 12 on the side where the lens 6 is arranged is reliably obtained. You can wear it.
【００１４】また、本発明では、パネル内面が曲面９ａ
とされた陰極線管１のパネル前面に枠体１２を取着する
に際し、パネル１の曲面中心Ｐ2 を求め、この曲面中心
Ｐ2 を治具３１上の基準中心に合わせるように陰極線管
１を治具３１上に位置決めして取着することにより、パ
ネル曲面の中心Ｐ2 と枠体１２の中心とが一致し、爾
後、枠体１２に取付けられる投射レンズ系とパネル曲面
間の光軸の精度が向上する。In the present invention, the inner surface of the panel is the curved surface 9a.
When the frame 12 is attached to the panel front surface of the cathode ray tube 1 which has been set as described above, the curved surface center P 2 of the panel 1 is obtained, and the cathode ray tube 1 is adjusted so that the curved surface center P 2 is aligned with the reference center on the jig 31. By positioning and mounting the jig 31 on the jig 31, the center P 2 of the panel curved surface and the center of the frame body 12 coincide with each other, and thereafter, the projection lens system attached to the frame body 12 and the optical axis of the panel curved surface are aligned. Accuracy is improved.
【００１５】[0015]
【実施例】以下、図１〜図８を参照して本発明による液
冷型陰極線管の組立方法の実施例を説明する。Embodiments of the method for assembling a liquid-cooled cathode ray tube according to the present invention will be described below with reference to FIGS.
【００１６】図１は陰極線管１と冷却液３を封入した枠
体１２とを本例の組立方法で組立て、その後、枠体１２
に投射レンズ本体即ち主レンズ５を有した鏡筒４を組立
てて完成したプロジェクタ用の液冷型陰極線管を示す。
陰極線管１は単色蛍光面７が形成された内面を内方に突
出する曲面（即ち球面）９ａとしたパネルを使用して構
成されている。１０は蛍光面７に対向して配された電子
銃である。FIG. 1 shows that the cathode ray tube 1 and the frame 12 in which the cooling liquid 3 is enclosed are assembled by the assembly method of this example, and then the frame 12 is assembled.
1 shows a liquid-cooled cathode ray tube for a projector completed by assembling a lens barrel 4 having a projection lens body, that is, a main lens 5.
The cathode ray tube 1 is configured by using a panel in which an inner surface on which a monochromatic fluorescent screen 7 is formed is a curved surface (that is, a spherical surface) 9a protruding inward. An electron gun 10 is arranged so as to face the fluorescent screen 7.
【００１７】枠体１２は、図６〜図８に示すように冷却
液を封入する空間部１３を有しパネル前面に取着される
側にパネル前面の周面に対向して外方に延長する第１フ
ランジ部１４が形成され、これと反対側には例えば球面
板からなる最終レンズ６が嵌入される開口１５を有する
第２フランジ部１６が形成されて成る。As shown in FIGS. 6 to 8, the frame 12 has a space 13 for enclosing a cooling liquid, and extends outward facing the peripheral surface of the panel front on the side attached to the panel front. A first flange portion 14 is formed, and a second flange portion 16 having an opening 15 into which the final lens 6 made of, for example, a spherical plate is fitted is formed on the opposite side.
【００１８】第２フランジ部１６上には、円周上に沿っ
て最終レンズ６の抑え板２０を取付ける複数、本例では
４つの取付部１７と、鏡筒４を取付ける複数、本例では
４つの取付部１８が設けられ、之等取付部１７及び１８
は第２フランジ部１６の面より突出し、その各突出上面
が基準面１７ａ及び１８ａとなるように形成される。各
取付部１７及び１８には雌ネジが切られている。１９ａ
も基準面である。On the second flange portion 16, a plurality of holding plates 20 for the final lens 6 are mounted along the circumference, four mounting portions 17 in this example, and a plurality of lens barrels 4 are mounted, four in this example. Two mounting parts 18 are provided, and the mounting parts 17 and 18
Are formed so as to project from the surface of the second flange portion 16 and the respective projecting upper surfaces serve as the reference surfaces 17a and 18a. Female screws are cut on each of the mounting portions 17 and 18. 19a
Is also a reference plane.
【００１９】さらに、第２フランジ部１６上には抑え板
２０の位置決め孔（図示せず）に係合する位置決めピン
２１が設けられる。２２は最終レンズ６を液密的に取付
けるためのＯリングが嵌入する環状溝、２３は空間部１
３に連通するベロフラム取付部、２４は冷却液注入口で
ある。ベロフラム取付部２３には、図１に示すようにベ
ロフラム２５及びベロフラムキップ２６が取付けられ
る。Further, a positioning pin 21 that engages with a positioning hole (not shown) of the holding plate 20 is provided on the second flange portion 16. Reference numeral 22 denotes an annular groove into which an O-ring for mounting the final lens 6 in a liquid-tight manner is fitted, and 23 denotes the space portion 1.
A bellows mounting portion communicating with 3 and a cooling liquid inlet 24 are provided. As shown in FIG. 1, a bellows 25 and a bellows kip 26 are attached to the bellows mounting portion 23.
【００２０】一方、本例においては、図２〜図４に示す
ような組立て用の治具３１を用意する。この治具は、ベ
ース３２の水平基準面３２ａの中央にこれより垂直方向
に基準の高さｔをもって突出する複数、本例では３本の
基準突当て部材３３を有してなる第１の治具部３４と、
陰極線管１のパネル９が挿入される枠状体３５の２辺に
後述するように基準突当て部材３３によってＺ方向（垂
直方向）の位置決めがなされた陰極線管１に対してその
パネル９の水平面内でのＸ方向及びＹ方向の位置を規制
する複数、本例では３つの突当て片３６を有する第２の
治具部３７とから構成される。ここで、第１の治具部３
４においては、各基準突当て部材３３の高さｔはいずれ
も同じ高さであり、従って水平基準面３２ａと、３本の
基準突当て部材３３の先端で形成される面とは平行とな
る。On the other hand, in this example, a jig 31 for assembly as shown in FIGS. 2 to 4 is prepared. This jig has a plurality of, in this example, three reference abutting members 33 which vertically project from the horizontal reference surface 32a of the base 32 at a reference height t, and which is a first fixing member. Ingredient part 34,
The horizontal plane of the panel 9 with respect to the cathode ray tube 1 which is positioned in the Z direction (vertical direction) by the reference abutting member 33 on the two sides of the frame-like body 35 into which the panel 9 of the cathode ray tube 1 is inserted, as described later. The second jig portion 37 has a plurality of, in this example, three butting pieces 36 that regulate the positions in the X and Y directions inside. Here, the first jig portion 3
In FIG. 4, the height t of each of the reference abutting members 33 is the same, and therefore the horizontal reference surface 32a and the surface formed by the tips of the three reference abutting members 33 are parallel. ..
【００２１】第１の治具部３４の水平基準面３２ａには
枠体１２を載置したときに枠体１２側の位置決めピン２
１が嵌入して枠体１２のＸ方向及びＹ方向の位置決めを
行うための２つの係合孔３８ａ、３８ｂが形成される。
なお、一方の係合孔３８ｂはピン２１の公差を考慮して
長孔に形成される。また、３本の基準突当て部材３３は
ベース３２上に枠体１２を載置したときに枠体１２の開
口１５内に対応する領域に所定間隔を置いて設けられ
る。When the frame 12 is placed on the horizontal reference surface 32a of the first jig portion 34, the positioning pin 2 on the frame 12 side is placed.
Two engaging holes 38a and 38b for positioning the frame 12 in the X direction and the Y direction are formed by inserting 1 into the frame 12.
The one engaging hole 38b is formed as an elongated hole in consideration of the tolerance of the pin 21. Further, the three reference abutting members 33 are provided at predetermined intervals in the corresponding regions in the opening 15 of the frame body 12 when the frame body 12 is placed on the base 32.
【００２２】なお、本例では第１の治具部３４の４隅に
支持用柱体４０を設け、この支持用柱体４０の上端に第
２の治具３７に形成した係合孔４１を係合させて第２の
治具部３７を所定高さ位置に支持するようにしている。In this example, the supporting pillars 40 are provided at the four corners of the first jig portion 34, and the engaging holes 41 formed in the second jig 37 are formed at the upper ends of the supporting pillars 40. The second jig portion 37 is engaged to support the second jig portion 37 at a predetermined height position.
【００２３】次に、図５を参照して上述の治具３１によ
る陰極線管１と枠体１２との組立を説明する。Next, the assembly of the cathode ray tube 1 and the frame 12 by the jig 31 will be described with reference to FIG.
【００２４】先ず、第１の治具部３４の水平基準面３２
ａに、枠体１２の第２フランジ部１６上の基準面１７
ａ、１８ａ、１９ａが当接するように枠体１２を載置す
る。このとき、第２フランジ部１６に設けた２本の位置
決めピン２１が水平基準面３２ａに形成した係合孔３８
ａ、３８ｂに夫々係合することにより、枠体１２のＸ方
向及びＹ方向の位置決めがなされる。即ち、枠体１２の
開口１５の中心と水平基準面３２ａの基準中心が一致す
る。この状態で水平基準面３２ａより突出する基準突当
て部材３３は枠体１２の開口１５内を貫通する。First, the horizontal reference plane 32 of the first jig section 34.
a, a reference surface 17 on the second flange portion 16 of the frame body 12
The frame body 12 is placed so that the a, 18a, and 19a come into contact with each other. At this time, the two positioning pins 21 provided on the second flange portion 16 are engaged with the engagement holes 38 formed on the horizontal reference surface 32a.
By engaging with a and 38b respectively, the frame body 12 is positioned in the X direction and the Y direction. That is, the center of the opening 15 of the frame body 12 and the reference center of the horizontal reference plane 32a coincide. In this state, the reference abutting member 33 protruding from the horizontal reference surface 32a penetrates through the opening 15 of the frame body 12.
【００２５】枠体１２の第１フランジ部１４の陰極線管
１のパネル９前面と接着すべき端面には接着剤であるシ
リコーン樹脂４４が塗布される。シリコーン樹脂４４は
無効画面に対応するように周縁に沿って塗布される。A silicone resin 44, which is an adhesive, is applied to the end surface of the first flange portion 14 of the frame 12 to be bonded to the front surface of the panel 9 of the cathode ray tube 1. The silicone resin 44 is applied along the peripheral edge so as to correspond to the invalid screen.
【００２６】次に、突当て片３６の突出長が調整された
第２の治具部３７を第１の治具部３４の支持用柱体４０
に支持する。次に、パネル９の前面を下にして陰極線管
１を第２の治具部３７の枠体３５内を通して挿入する。
このときパネル９前面に基準突当て部材３３の先端が当
接する位置で陰極線管１が係止される。Next, the second jig portion 37 in which the protruding length of the butting piece 36 is adjusted is connected to the supporting pillar 40 of the first jig portion 34.
To support. Next, the cathode ray tube 1 is inserted through the frame 35 of the second jig portion 37 with the front surface of the panel 9 facing down.
At this time, the cathode ray tube 1 is locked at the position where the tip of the reference abutting member 33 contacts the front surface of the panel 9.
【００２７】この基準突当て部材３３により、パネル９
前面は水平に支持され、従って水平基準面３２ａに当接
している枠体１２の第２フランジ部１５の端面従って基
準面１７ａ、１８ａ、１９ａと平行に支持される。同時
に、パネル９の外側のアライメントポイント（製造上の
基準となるポイント）に第２の治具部３７の突当て片３
６が当接することによって、パネル９のＸ方向及びＹ方
向の位置決めがなされる。従って、パネル９の中心つま
りパネル球面９ａの中心と枠体１２の開口１５の中心が
一致する。With this reference abutting member 33, the panel 9
The front surface is supported horizontally, and thus is supported in parallel with the end surface of the second flange portion 15 of the frame body 12 that is in contact with the horizontal reference surface 32a, that is, the reference surfaces 17a, 18a, 19a. At the same time, the abutting piece 3 of the second jig portion 37 is aligned with the alignment point on the outer side of the panel 9 (the reference point for manufacturing).
The abutting of 6 positions the panel 9 in the X and Y directions. Therefore, the center of the panel 9, that is, the center of the panel spherical surface 9a and the center of the opening 15 of the frame 12 coincide with each other.
【００２８】そして、この状態でシリコーン樹脂４４に
より、陰極線管１のパネル９前面と枠体１２の第１フラ
ンジ部１４の端面とが液密的に接着される。ここでパネ
ル前面に対して枠体１２の第１フランジ部１４の端面が
加工精度で多少非平行であっても、シリコーン樹脂４４
によって加工精度のばらつきは吸収され、結果としてパ
ネル前面と枠体１２の第２フランジ部１６の端面が平行
に維持されて接着される。In this state, the front surface of the panel 9 of the cathode ray tube 1 and the end surface of the first flange portion 14 of the frame body 12 are liquid-tightly bonded by the silicone resin 44. Even if the end surface of the first flange portion 14 of the frame body 12 is slightly non-parallel to the front surface of the panel due to the processing accuracy, the silicone resin 44
As a result, variations in processing accuracy are absorbed, and as a result, the front surface of the panel and the end surface of the second flange portion 16 of the frame body 12 are kept parallel to each other and bonded.
【００２９】次に、枠体１２を取着した陰極線管１を治
具３１より取出した後、開口１５を閉塞するように球面
板からなる最終レンズ６をＯリング４５を介して配し、
環状のレンズ抑え板２０を取付部１７にネジ止めして最
終レンズ６を枠体１２に対して液密的に固定する。Next, the cathode ray tube 1 to which the frame body 12 is attached is taken out from the jig 31, and then the final lens 6 made of a spherical plate is arranged via the O-ring 45 so as to close the opening 15.
The final lens 6 is liquid-tightly fixed to the frame body 12 by screwing the annular lens holding plate 20 to the mounting portion 17.
【００３０】次に、注入口２４より冷却液３をパネル９
前面と枠体１２と最終レンズ６で囲まれた空間部１３内
に注入して封止する。また、ベロフラム取付部２４にベ
ロフラム２５、ベロフラムキャップ２６を取付ける。次
いで、枠体１２に主レンズ５が組込まれた鏡筒４を取付
部１８にねじ止めで固定し、図１に示す組立が完了す
る。ここで、枠体１２の開口１５に対する最終レンズ６
の取付け、枠体１２（従って最終レンズ６）に対する鏡
筒４の取付けは光軸がずれることなく高精度になされ
る。Next, the cooling liquid 3 is injected from the inlet 24 into the panel 9
It is injected into the space 13 surrounded by the front surface, the frame 12 and the final lens 6 to be sealed. Further, the bellowram 25 and the bellowram cap 26 are attached to the bellowram mounting portion 24. Next, the lens barrel 4 in which the main lens 5 is incorporated in the frame body 12 is fixed to the mounting portion 18 with screws, and the assembly shown in FIG. 1 is completed. Here, the final lens 6 for the opening 15 of the frame body 12
And the lens barrel 4 is attached to the frame body 12 (therefore, the final lens 6) with high precision without the optical axis being displaced.
【００３１】上述の実施例によれば、パネル９前面に対
して冷却液を封入する枠体１２をその最終レンズ６が配
される第２フランジ部１６の端面がパネル前面と平行と
なるように取着することができる。また、シリコーン樹
脂４４を介してパネル９前面に枠体１２が接着されるの
で、液密的に（即ち液もれなく）取着することができ
る。これによって、パネル球面９ａと枠体１２に取付け
られる最終レンズ６及び鏡筒４との光軸合わせの精度を
向上することができる。従ってスクリーン上でのフォー
カス特性より液冷型陰極線管を組立てることができる。According to the above-mentioned embodiment, the frame 12 for enclosing the cooling liquid on the front surface of the panel 9 is arranged so that the end surface of the second flange portion 16 on which the final lens 6 is arranged is parallel to the front surface of the panel. Can be attached. Further, since the frame body 12 is adhered to the front surface of the panel 9 via the silicone resin 44, the frame body 12 can be attached liquid-tightly (that is, without liquid leakage). As a result, the accuracy of optical axis alignment between the panel spherical surface 9a and the final lens 6 and the lens barrel 4 attached to the frame 12 can be improved. Therefore, a liquid-cooled cathode ray tube can be assembled based on the focus characteristics on the screen.
【００３２】尚、上例においては、第１の治具部３４と
第２の治具部３７を別体にして組立時に両者を係合する
構成としたが、その他、図示せざるも、コ字状の枠体に
複数の突当て片３６を設けた第２の治具部を形成して、
この第２の治具部を第１の治具部３４のベース３２上の
支持用柱体４０に回動自在に取付け、陰極線管１の投入
前は第２の治具部を第１の治具部３２と対向せざる位置
に待機させ、陰極線管１のパネル９の前面をシリコーン
樹脂４４を介して枠体１２上に配したのち、第２の治具
部を回動させてパネル９のアライメングポイントに突当
て片３６を当接させてパネル９のＸ方向及びＹ方向の位
置決めを行うように構成することもできる。この場合に
は組立ての自動化が可能となる。In the above example, the first jig portion 34 and the second jig portion 37 are separately provided so that they are engaged with each other during assembly. A second jig portion in which a plurality of abutting pieces 36 are provided on the frame body having a character shape is formed,
This second jig portion is rotatably attached to the supporting pillar 40 on the base 32 of the first jig portion 34, and the second jig portion is fixed to the first jig portion before the cathode ray tube 1 is loaded. The front surface of the panel 9 of the cathode ray tube 1 is placed on the frame body 12 via the silicone resin 44 in a position where it does not face the tool portion 32, and then the second jig portion is rotated to rotate the panel 9 of the panel 9. The abutting piece 36 may be brought into contact with the aligning point to position the panel 9 in the X and Y directions. In this case, the assembly can be automated.
【００３３】一方、陰極線管１のパネル９においても製
造公差が無視できない場合が生ずる。即ち、図９Ａに示
すように、パネル９の中心Ｐ1 とパネル球面９ａの中心
Ｐ2 とが一致しない場合、陰極線管１のパネル９を第２
の治具部３７にセットしその突当て片３６をパネル外側
のアライメントポイントに突当ててパネル中心Ｐ1 を枠
体１２の開口１５の中心に合わせるようにしても、パネ
ル球面９ａの中心Ｐ2 が枠体の開口１５の中心に合わな
くなる。On the other hand, in the panel 9 of the cathode ray tube 1, there may be a case where the manufacturing tolerance cannot be ignored. That is, as shown in FIG. 9A, when the center P 1 of the panel 9 and the center P 2 of the panel spherical surface 9a do not coincide with each other, the panel 9 of the cathode ray tube 1 is moved to the second position.
Even if the abutting piece 36 is abutted against the alignment point outside the panel so that the panel center P 1 is aligned with the center of the opening 15 of the frame body 12, the center P 2 of the panel spherical surface 9a is set. Is not aligned with the center of the opening 15 of the frame.
【００３４】この点を改善する例を次に説明する。An example of improving this point will be described below.
【００３５】本例では、図９Ｂに示すように、パネル球
面９ａの中心Ｐ2 を予め測定し、この中心Ｐ2 から夫々
突当て片３６に当接されるアライメントポイントまでの
距離Ｘ2 、Ｙ2 を求める。パネル球面９ａの中心Ｐ2 の
測定は例えば厚み測定機によって最も厚い位置を測定す
ることによってパネル球面９ａの中心Ｐ2 が測定され
る。In this example, as shown in FIG. 9B, the center P 2 of the panel spherical surface 9a is measured in advance, and the distances X 2 and Y from the center P 2 to the alignment points abutted on the abutting pieces 36, respectively. Ask for 2 . Measurements of central P 2 panels spherical 9a is the center P 2 of the panel spherical 9a by measuring the thickest position by the thickness measuring device for example is measured.
【００３６】この距離Ｘ2 、Ｙ2 を求めたのち、第２の
治具部３７の各突当て片３６の突出長さを調整し、即ち
前述した水平基準面３２ａの基準中心から突当て片３６
の先端までの距離が夫々Ｘ2 、Ｙ2となるように突出長
さを調整する。従って、この場合、突当て片３６は枠状
体３５に対して移動可能に取付けられる。これによっ
て、陰極線管１を第２の治具部３７にセットしたとき、
パネル球面９ａの中心Ｐ 2 が第１の治具部３４上に載置
されている枠体１２の開口中心に合わすことができ、パ
ネル球面９ａ及びレンズ等の光軸の精度をより向上する
ことができる。This distance X2, Y2After asking for
Adjust the protruding length of each abutting piece 36 of the jig portion 37, that is,
The abutting piece 36 from the reference center of the horizontal reference surface 32a described above.
The distance to the tip of each is X2, Y2Protruding length to be
Adjust the height. Therefore, in this case, the abutting piece 36 has a frame shape.
It is movably attached to the body 35. By this
When the cathode ray tube 1 is set on the second jig portion 37,
Center P of the spherical surface 9a of the panel 2Placed on the first jig section 34
Can be aligned with the center of the opening of the frame body 12
To further improve the accuracy of the optical axis of the flannel spherical surface 9a and the lens.
be able to.
【００３７】尚、このようなパネル球面９ａの中心Ｐ2
測定、及び中心Ｐ2 からアライメントポイントまでの距
離Ｘ2 、Ｙ2 の測定を自動化し、コンピュータに入力
し、さらに、この測定値に基いて、第２の治具部３７の
突当て片３６の突出長さの調整を自動的に行うように構
成することも可能である。The center P 2 of such a panel spherical surface 9a is
Measuring, and the measurement of the distance X 2, Y 2 from the center P 2 to the alignment points automate, and input into a computer, further, on the basis of this measurement, the abutment pieces 36 of the second jig 37 It is also possible to adjust the protrusion length automatically.
【００３８】[0038]
【発明の効果】本発明によれば、陰極線管のパネル前面
に対して、冷却液が封入される枠体のレンズが配される
端面を平行状態で枠体を取着することができる。従っ
て、パネル内面に曲面をもつ陰極線管に対して、その曲
面の光軸と枠体に取付けられるレンズ系の光軸を精度よ
く合わせて組立てることができる。According to the present invention, the frame body can be attached to the front surface of the panel of the cathode ray tube in a state where the end surface of the frame body in which the cooling liquid is sealed and the lens is arranged in parallel. Therefore, it is possible to assemble the cathode ray tube having a curved surface on the inner surface of the panel by accurately aligning the optical axis of the curved surface with the optical axis of the lens system attached to the frame.
【００３９】従って、信頼性の高いこの種のプロジェク
ター用の液冷型陰極線管を製造することができる。Therefore, it is possible to manufacture a highly reliable liquid-cooled cathode ray tube for this type of projector.
【図１】本発明の組立方法で得られた液冷型陰極線管の
断面図である。FIG. 1 is a cross-sectional view of a liquid-cooled cathode ray tube obtained by the assembling method of the present invention.
【図２】本発明に係る組立用の治具の構成図である。FIG. 2 is a configuration diagram of a jig for assembly according to the present invention.
【図３】本発明に係る第２治具部の平面図である。FIG. 3 is a plan view of a second jig portion according to the present invention.
【図４】本発明に係る第１治具部の平面図である。FIG. 4 is a plan view of a first jig portion according to the present invention.
【図５】本発明に係る組立状態の説明図である。FIG. 5 is an explanatory view of an assembled state according to the present invention.
【図６】冷却液を封入する枠体の平面図である。FIG. 6 is a plan view of a frame body that encloses a cooling liquid.
【図７】図６のＡ−Ａ線上の断面図である。7 is a cross-sectional view taken along the line AA of FIG.
【図８】図６の側面図である。FIG. 8 is a side view of FIG.
【図９】本発明に係る組立方法の他例を示す説明図であ
る。FIG. 9 is an explanatory view showing another example of the assembling method according to the present invention.
【図１０】従来の液冷型陰極線管の例を示す構成図であ
る。FIG. 10 is a configuration diagram showing an example of a conventional liquid-cooled cathode ray tube.
１ 陰極線管 ２、１２ 枠体 ３ 冷却液 ４ 鏡筒 ５ 主レンズ ６ 最終レンズ ７ 単色蛍光面 ９ パネル ９ａ 曲面（球面） １０ 電子銃 １３ 空間部 １４、１６ フランジ部 １５ 開口 １７ａ、１８ａ、１９ａ 基準面 ２１ 位置決めピン ３１ 治具 ３２ ベース ３２ａ 水平基準面 ３３ 基準突当て部材 ３４ 第１治具部 ３６ 突当て片 ３７ 第２治具部 1 Cathode Ray Tube 2, 12 Frame 3 Coolant 4 Lens Barrel 5 Main Lens 6 Final Lens 7 Monochromatic Fluorescent Surface 9 Panel 9a Curved Surface (Spherical) 10 Electron Gun 13 Space Part 14, 16 Flange Part 15 Opening 17a, 18a, 19a Reference Surface 21 Positioning Pin 31 Jig 32 Base 32a Horizontal Reference Surface 33 Reference Abutting Member 34 First Jig Part 36 Abutting Piece 37 Second Jig Part
Claims (3)
れる枠体を取着する液冷型陰極線管の組立方法におい
て、 治具の水平基準面に上記枠体のレンズが配される側の端
面が対接するように上記枠体を載置し、 上記治具の水平基準面より垂直に突出する基準突当て部
材の先端に上記陰極線管のパネル前面を突き当てて、上
記陰極線管のパネル前面と上記枠体の上記端面を平行に
位置決めし、 上記陰極線管のパネル前面に上記枠体を取着することを
特徴とする液冷型陰極線管の組立方法。1. A method of assembling a liquid-cooled cathode ray tube, wherein a frame body, in which a cooling liquid is sealed, is attached to the front surface of a panel of the cathode ray tube, wherein a lens of the frame body is arranged on a horizontal reference plane of a jig. The frame body is placed so that the end faces of the cathode ray tube face each other, and the panel front face of the cathode ray tube is abutted against the tip of the reference abutting member that vertically protrudes from the horizontal reference plane of the jig, and the panel of the cathode ray tube is abutted. A method for assembling a liquid-cooled cathode ray tube, characterized in that the front surface and the end surface of the frame body are positioned in parallel, and the frame body is attached to the panel front surface of the cathode ray tube.
て枠体を取着する請求項１記載の液冷型陰極線管の組立
方法。2. The method for assembling a liquid-cooled cathode ray tube according to claim 1, wherein the frame body is attached to the front surface of the panel of the cathode ray tube via an adhesive layer.
ネル前面に冷却液が封入される枠体を取着する液冷型陰
極線管の組立方法において、 上記パネルの曲面の中心を求め、該曲面中心を枠体が載
置された治具上の基準中心に合わせるように上記陰極線
管を上記治具に位置決めし、 上記陰極線管のパネル前面に上記枠体を取着することを
特徴とする液冷型陰極線管の組立方法。3. A method of assembling a liquid cooling type cathode ray tube, wherein a frame body in which a cooling liquid is enclosed is attached to the panel front surface of a cathode ray tube having a curved inner surface. The cathode ray tube is positioned on the jig so that the center of the curved surface is aligned with the reference center on the jig on which the frame body is placed, and the frame body is attached to the panel front surface of the cathode ray tube. Liquid-cooled cathode ray tube assembly method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03260636A JP3141250B2 (en) | 1991-10-08 | 1991-10-08 | Liquid cooling type cathode ray tube assembling method and liquid cooling type cathode ray tube assembling jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03260636A JP3141250B2 (en) | 1991-10-08 | 1991-10-08 | Liquid cooling type cathode ray tube assembling method and liquid cooling type cathode ray tube assembling jig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05101774A true JPH05101774A (en) | 1993-04-23 |
| JP3141250B2 JP3141250B2 (en) | 2001-03-05 |
Family
ID=17350676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03260636A Expired - Fee Related JP3141250B2 (en) | 1991-10-08 | 1991-10-08 | Liquid cooling type cathode ray tube assembling method and liquid cooling type cathode ray tube assembling jig |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3141250B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015151172A1 (en) * | 2014-03-31 | 2015-10-08 | パイオニア株式会社 | Image pickup device and method for manufacturing same |
-
1991
- 1991-10-08 JP JP03260636A patent/JP3141250B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015151172A1 (en) * | 2014-03-31 | 2015-10-08 | パイオニア株式会社 | Image pickup device and method for manufacturing same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3141250B2 (en) | 2001-03-05 |
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