JP2003115215A - Light source device and projector device - Google Patents
Light source device and projector deviceInfo
- Publication number
- JP2003115215A JP2003115215A JP2001307204A JP2001307204A JP2003115215A JP 2003115215 A JP2003115215 A JP 2003115215A JP 2001307204 A JP2001307204 A JP 2001307204A JP 2001307204 A JP2001307204 A JP 2001307204A JP 2003115215 A JP2003115215 A JP 2003115215A
- Authority
- JP
- Japan
- Prior art keywords
- light source
- source device
- discharge lamp
- reflecting mirror
- cooling
- 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.)
- Pending
Links
Landscapes
- Projection Apparatus (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は液晶フロジェクタ装
置やファイバー照明用光源に使用される光源装置に関
し、特に冷却機構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light source device used for a liquid crystal projector device or a light source for fiber illumination, and more particularly to a cooling mechanism.
【０００２】[0002]
【従来技術】液晶プロジェクタ装置等に使用される光源
は、高画質な画像を得るために高輝度で演色性に優れる
超高圧水銀ランプが使用される。一般に、超高圧水銀ラ
ンプは、全光束に加え、点光源に近く集光率が高く、色
のバランスに優れた０．１５ｍｇ／ｍｍ２以上の水銀が
封入されている８０Ｗ以上のランプが使用される。この
ランプは動作時１５ＭＰａを超える発光管内圧力にもな
るので、凹面反射鏡の前面開口部に前面ガラスを配置
し、ランプ冷却用の開口部を除き概略密閉化し、凹面集
光鏡の開口前方に配置される光学部品等を保護する防爆
構造が取られるようになってきた。2. Description of the Related Art As a light source used in a liquid crystal projector device, an ultrahigh pressure mercury lamp having high brightness and excellent color rendering is used in order to obtain a high quality image. In general, an ultra-high pressure mercury lamp uses a lamp of 80 W or more in which 0.15 mg / mm 2 or more of mercury, which has a high light-collecting rate close to a point light source and an excellent color balance, is added to the total luminous flux is used. It Since this lamp has a pressure in the arc tube that exceeds 15 MPa during operation, a front glass is placed in the front opening of the concave reflecting mirror, and the lamp is roughly sealed except for the lamp cooling opening. Explosion-proof structures have come to be used to protect optical components and the like that are placed.
【０００３】光源の超高圧水銀ランプは、点灯時には発
光管の上部がもっとも温度が高くなり、その最高温度が
千数１０℃になり、発光管の膨れや失透が生じ、破裂に
到ることがある。従来型の光源装置１０を図４に示す。
この図４においては、光源装置１０がプロジェクタ装置
１００に組み込まれた状態でその光源装置１０の冷却の
される状態を示している。凹面反射鏡２の前面開口部に
前面ガラス３を配置し、冷却風取り込み口１５を前面ガ
ラス３の近傍下部に設け、吸気ファン１３で吸気した冷
却風を光源装置１０の凹面反射鏡２と前面ガラス３に囲
まれた空間に導入し、高温となる放電ランプ１０の発光
管上部を冷却し、ランプベース部２２の開口部２３から
排出することによる冷却を行っていた。In an ultra-high pressure mercury lamp as a light source, the temperature of the upper part of the arc tube becomes the highest at the time of lighting, and the maximum temperature reaches 1000 ° C., which causes swelling and devitrification of the arc tube, leading to rupture. There is. A conventional light source device 10 is shown in FIG.
In FIG. 4, the light source device 10 is assembled in the projector device 100, and the light source device 10 is cooled. The front glass 3 is arranged in the front opening of the concave reflecting mirror 2, a cooling air intake port 15 is provided below the front glass 3, and the cooling air sucked by the intake fan 13 is provided on the concave reflecting mirror 2 and the front surface of the light source device 10. It is introduced into the space surrounded by the glass 3 to cool the upper part of the arc tube of the discharge lamp 10 which has a high temperature, and to discharge it from the opening 23 of the lamp base 22 for cooling.
【０００４】しかし、ホームユース機器として液晶プロ
ジェクタ装置やＤＬＰＴＭ（テキサスインスツルメンツ
社）プロジェクタ装置が普及し始めると、ＰＬ（製造物
責任）問題が大きな問題となってくる。すなわち、万一
ランプの破裂が起こった場合でも、発光管ガラスの破片
や発光管内の封入物の飛散防止が課題としてクローズア
ップされる。また、ホームユースになれば、冷却風の騒
音も問題化してくる。そして、近年の携帯用プロジェク
タ装置は、スクリーンの高画質に加え、ますます小型・
薄型・軽量化が強く求められる。However, when a liquid crystal projector device or a DLP ™ (Texas Instruments Inc.) projector device as home use equipment begins to spread, the PL (product liability) problem becomes a serious problem. In other words, even if a lamp bursts, the problem is to prevent the fragments of the arc tube glass and the scattering of the inclusions in the arc tube. When it comes to home use, noise from cooling air becomes a problem. In addition to the high image quality of the screen, portable projector devices of recent years are becoming smaller and smaller.
There is a strong demand for thinner and lighter products.
【０００５】そこで、ランプからの給電リード線導出用
の穴を除き密閉化した防爆構造とした、防爆密閉型の光
源装置が必要となり、そのような光源装置においては、
冷却風を光源装置の反射鏡と前面ガラスで囲まれた空間
内に導入することができず、凹面反射鏡の外部からラン
プを冷やすことが要求される。しかし、小型・薄型・軽
量化が要求されるプロジェクタ装置では、光源冷却専用
のファンを設けることは困難である。そのため、光源冷
却に供される冷却風量が限られてしまう。Therefore, it is necessary to provide an explosion-proof sealed light source device having an explosion-proof structure in which a hole for leading out a power supply lead wire from a lamp is sealed, and in such a light source device,
Cooling air cannot be introduced into the space surrounded by the reflector of the light source device and the front glass, and it is required to cool the lamp from the outside of the concave reflector. However, it is difficult to provide a fan dedicated to cooling the light source in a projector device that is required to be small, thin, and lightweight. Therefore, the amount of cooling air used for cooling the light source is limited.
【０００６】このため、ランプの発光管部の冷却が不十
分となり、ランプの発光管上部が昇温し、使用に耐える
許容温度を超え、発光管上部に失透が生じ、そのためラ
ンプの照度維持率が低下し、光源装置が短寿命となると
いう問題がある。Therefore, the arc tube of the lamp is not sufficiently cooled, the temperature of the upper part of the arc tube of the lamp rises, exceeds the allowable temperature to withstand use, and devitrification occurs at the upper part of the arc tube, which maintains the illuminance of the lamp. There is a problem in that the light source device has a shorter life and the light source device has a shorter life.
【０００７】[0007]
【発明が解決しようとする課題】そこで、本発明の目的
は、プロジェクタ装置に内装填される水平点灯・防爆密
閉型の光源装置で、限られた冷却風量で効率よく冷却す
ることで、発光管の失透を抑え、照度維持率を高く維持
し、長寿命となる光源装置、およびその光源装置を使用
したプロジェクタ装置を提供することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a horizontal lighting / explosion-proof sealed light source device internally mounted in a projector device, by efficiently cooling with a limited cooling air volume, the arc tube. It is an object of the present invention to provide a light source device that suppresses devitrification and maintains a high illuminance maintenance rate and has a long life, and a projector device that uses the light source device.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
に、請求項１記載の発明は、両端封止型の放電ランプ
と、該放電ランプの一方の封止部をその首部に保持し、
該放電ランプからの放射光を前方に向けて出射する凹面
反射鏡と、該凹面反射鏡の前面を覆う前面ガラスを有
し、水平点灯で使用される密閉構造の光源装置であっ
て、該光源装置と離間して配置された吸気ファンからの
冷却風を該放電ランプの発光管上部に近接する該凹面反
射鏡外面部分に局所的に吹きつける導風路を設けた冷却
機構が組み合わされてなることを特徴とする光源装置と
するものである。In order to solve the above-mentioned problems, the invention according to claim 1 holds a discharge lamp of both ends sealed type, and one of the sealed parts of the discharge lamp is held at its neck,
What is claimed is: 1. A light source device having a concave structure for emitting light emitted from the discharge lamp forward, and a front glass for covering the front surface of the concave mirror, the light source device having a hermetic structure for horizontal lighting, the light source comprising: A combination of a cooling mechanism provided with an air guide passage for locally blowing cooling air from an intake fan arranged apart from the device to the outer surface of the concave reflecting mirror near the upper part of the discharge lamp of the discharge lamp. A light source device characterized by the above.
【０００９】請求項２に記載の発明は、前記凹面反射鏡
が結晶化ガラスからなることを特徴とする請求項１に記
載の光源装置とするものである。According to a second aspect of the invention, there is provided the light source device according to the first aspect, wherein the concave reflecting mirror is made of crystallized glass.
【００１０】請求項３記載の発明は、前記放電ランプの
発光管上部に近接する前記凹面反射鏡の外面部分に冷却
フィンを具備したことを特徴とする請求項１に記載の光
源装置とするものである。According to a third aspect of the present invention, there is provided a light source device according to the first aspect, wherein a cooling fin is provided on an outer surface portion of the concave reflecting mirror near the upper portion of the arc tube of the discharge lamp. Is.
【００１１】請求項４記載の発明は、請求項１乃至請求
項３に記載の光源装置を使用したプロジェクタ装置であ
って、吸気ファンからの冷却風の一部を該放電ランプの
発光管上部に近接する該凹面反射鏡外面部分に局所的に
吹きつける導風路を設けた冷却機構が備わったことを特
徴とするプロジェクタ装置とするものである。According to a fourth aspect of the present invention, there is provided a projector device using the light source device according to any of the first to third aspects, wherein a part of the cooling air from the intake fan is provided above the arc tube of the discharge lamp. The projector device is provided with a cooling mechanism in which an air guide path for locally blowing air is provided on an outer surface portion of the concave reflecting mirror which is adjacent to the concave reflecting mirror.
【００１２】[0012]
【発明の実施の形態】図１は本発明の光源装置の概略図
である。図１（ａ）は光源装置を上方からみた図であ
り、図１（ｂ）は光源装置を側面からみた図である。光
源装置１０は、放電ランプ１の一方の封止部を首部に保
持した凹面反射鏡２と前面ガラス３とからなっている。
そして、水平に載置された光源装置１０の放電ランプ１
の発光管上部に近接する凹面反射鏡の外面部分を、不図
示の吸気ファンからの冷却風を局所的に吹き付ける送風
ダクト４が配置されている。この送風ダクト４は本発明
においての導風路の一例であり、凹面反射鏡２に風を吹
きつける部分を更に細いパイプ状としてもよい。２１は
ランプベースである。なお、反射鏡開口側のランプ封止
部から出る給電リードを凹面反射鏡の外へ導出する為の
穴は図上省略してある。なお、図１では、放電ランプ１
の発光管上部に近接する凹面反射鏡の外面部分を、横方
向から冷却風を吹きつける様子が示されているが、これ
は、実使用においてプロジェクタ装置の薄型化によりス
ペース的に放電ランプの発光管上方からの冷却風の吹き
付けが困難なためであり、スペース的に余裕があれば放
電ランプの発光管上方からの冷却風の吹き付けが好まし
い。1 is a schematic view of a light source device of the present invention. 1A is a view of the light source device as seen from above, and FIG. 1B is a view of the light source device as seen from a side surface. The light source device 10 includes a concave reflecting mirror 2 that holds one sealing portion of the discharge lamp 1 at a neck portion and a front glass 3.
Then, the discharge lamp 1 of the light source device 10 placed horizontally is provided.
A blower duct 4 for locally blowing cooling air from an intake fan (not shown) is arranged on the outer surface of the concave reflecting mirror near the upper part of the arc tube. The blower duct 4 is an example of the air guide path in the present invention, and the portion for blowing the wind on the concave reflecting mirror 2 may be in the form of a thinner pipe. 21 is a lamp base. A hole for leading out the power supply lead from the lamp sealing portion on the opening side of the reflecting mirror to the outside of the concave reflecting mirror is omitted in the drawing. In FIG. 1, the discharge lamp 1
It is shown that the cooling air is blown from the lateral direction to the outer surface of the concave reflecting mirror close to the upper part of the arc tube of the discharge lamp. This is because it is difficult to blow the cooling air from above the tube, and it is preferable to blow the cooling air from above the arc tube of the discharge lamp if there is enough space.
【００１３】図２は、図１で局所的に冷却される光源装
置１０の放電ランプ１の発光管上部に近接する凹面反射
鏡の外面部に冷却フィン５を具備した実施形態を示す。
図２（ａ）は光源装置を背面からみた図である。図２
（ｂ）は側面からみた図である。冷却フィン５は送風ダ
クトの開口からの風の流れに沿うように送風ダクトの開
口に向け平行に配置されているが、この配置に限らず、
送風ダクトの開口に対して斜めに並ぶように配置しても
よい。FIG. 2 shows an embodiment in which a cooling fin 5 is provided on the outer surface portion of the concave reflecting mirror adjacent to the upper portion of the discharge tube 1 of the discharge lamp 1 of the light source device 10 which is locally cooled in FIG.
FIG. 2A is a view of the light source device as seen from the back side. Figure 2
(B) is the figure seen from the side surface. Although the cooling fins 5 are arranged parallel to the opening of the blower duct so as to follow the flow of air from the opening of the blower duct, the arrangement is not limited to this arrangement.
You may arrange | position so that it may line up diagonally with respect to the opening of a ventilation duct.
【００１４】この冷却フィンを具備するためには、凹面
反射鏡を例えば焼結石英ガラスやＡｌ ２Ｏ３（アルミ
ナ）の材料を使い、スリップキャスト法や樹脂成形で行
われているインジェクションプレス技術で凹面反射鏡と
一体に形成することが可能である。To provide this cooling fin, a concave surface is required.
The reflecting mirror is made of, for example, sintered quartz glass or Al. TwoOThree(Aluminum
The material is used for slip casting and resin molding.
With the concave injection mirror with the injection press technology
It can be integrally formed.
【００１５】[0015]
【実施例】つぎに、具体的な実施例について説明する。
図１に本発明の光源装置の概略図を示すが、光源として
使用するランプは、外径１０ｍｍ、肉厚３ｍｍの石英ガ
ラス製の発光管内に０．１５ｍｇ／ｍｍ３の水銀および
バッファガスとして所定量の希ガスを封入した超高圧放
電ランプであり、そのランプ入力は１３０Ｗである。前
面ガラスは硬質ガラスまたはバイコールで、肉厚３．８
ｍｍである。EXAMPLES Next, specific examples will be described.
FIG. 1 shows a schematic view of the light source device of the present invention. The lamp used as the light source is a quartz glass arc tube having an outer diameter of 10 mm and a wall thickness of 3 mm, and 0.15 mg / mm 3 of mercury and a buffer gas. It is an ultra-high pressure discharge lamp filled with a fixed amount of rare gas, and its lamp input is 130W. The front glass is hard glass or Vycor with a wall thickness of 3.8
mm.
【００１６】凹面反射鏡２は、開口部のサイズで５０ｍ
ｍ角、Ｆ値５．７の放物面鏡であって、βスポジューメ
ン固容体、もしくはユークリプト固容体等を含有する結
晶化ガラスからなる。結晶化ガラスの肉厚は４．０ｍｍ
であり、凹面反射鏡の内面にはＴｉＯ２膜とＳｉＯ２膜
を交互に併せて３７層被覆した多層反射膜が形成されて
いる。この多層反射膜は可視光反射、赤外域透過の機能
を有する。The concave reflecting mirror 2 has an opening size of 50 m.
It is a parabolic mirror having an m-square angle and an F value of 5.7, and is made of crystallized glass containing a β-spodumene solid solution, a Eucrypt solid solution, or the like. The thickness of crystallized glass is 4.0 mm
Thus, a multi-layer reflective film in which 37 layers of TiO 2 films and SiO 2 films are alternately combined is formed on the inner surface of the concave reflecting mirror. This multilayer reflective film has a function of reflecting visible light and transmitting in the infrared region.
【００１７】図３に本発明のプロジェクタ装置の概略構
成図を示す。図３（ａ）は装置を上方から見た図であ
り、図３（ｂ）は装置を側面から見た図である。プロジ
ェクタ装置１００は、装置の箱内にランプ点灯装置１
２、偏光ビームスプリッタ７、液晶８ａ・８ｂ・８ｃ、
色混合クロスプリズム１１、投写レンズ９、送風ダクト
４、インテグレータレンズ、偏光ミラー、各種レンズ等
から構成される。図３においては各部材は適宜省略して
表示している。FIG. 3 shows a schematic configuration diagram of the projector apparatus of the present invention. 3A is a view of the device seen from above, and FIG. 3B is a view of the device seen from the side. The projector device 100 includes a lamp lighting device 1 in a box of the device.
2, polarization beam splitter 7, liquid crystals 8a, 8b, 8c,
The color mixing cross prism 11, the projection lens 9, the blower duct 4, the integrator lens, the polarization mirror, various lenses, and the like. In FIG. 3, each member is omitted as appropriate.
【００１８】図３（ｂ）をみてわかるように、冷却用の
吸気ファン１３から入った冷却風の一部を開口２０ｍｍ
方形の送風ダクト４を通して直接、熱伝導率がホウケイ
酸ガラスより優れた結晶化ガラス製の凹面反射鏡２の放
電ランプ１の発光管上部に近接する箇所に２〜３ｍ／ｓ
ｅｃの風量で吹き付けた。この送風量はプロジェクタ装
置１００全体に流れる風量の約３０％程度である。図３
を見て分かるように近時のプロジェクタ装置は薄型化し
ており、寸法上の制約から排気ファン１４は同装置の側
面に設けられることが多い。よって、送風ダクト４から
の冷却風は光源装置１０の上方からでなく、横方向から
凹面反射鏡２の上面をなめるように冷却風を流してい
る。As can be seen from FIG. 3 (b), a part of the cooling air entering from the cooling intake fan 13 has an opening of 20 mm.
2 to 3 m / s directly through the rectangular air-blowing duct 4 to a location close to the upper part of the discharge lamp 1 of the discharge lamp 1 of the concave reflecting mirror 2 made of crystallized glass, which has a higher thermal conductivity than borosilicate glass.
It was blown with an air flow of ec. This air flow rate is about 30% of the air volume flowing through the entire projector device 100. Figure 3
As can be seen from the above, recent projector devices have become thinner, and the exhaust fan 14 is often provided on the side surface of the device due to dimensional restrictions. Therefore, the cooling air from the blower duct 4 is radiated not from above the light source device 10 but from the lateral direction so as to lick the upper surface of the concave reflecting mirror 2.
【００１９】凹面反射鏡の局所的冷却を行わないでプロ
ジェクタ装置内全域に風を流すだけの自然空冷の時に比
べて、本発明のプロジェクタ装置においては、凹面反射
鏡の最高温度、すなわち、放電ランプの発光管上部に近
接する凹面反射鏡の外面部の温度が５８０℃から４５０
℃にまで低下し、放電ランプの発光管上部温度を１０３
０℃から１００５℃に２５Ｋ下げることができた。その
結果、失透や膨れなどの不具合が発光管に生じず、ラン
プの照度維持（初期照度に対して 50 ％）が凹面反射
鏡の局所的な冷却を行わないときが５００時間であった
のに対し、１０００時間と、大幅に改善された。In the projector apparatus of the present invention, the maximum temperature of the concave reflecting mirror, that is, the discharge lamp, is higher than that in the case of natural air cooling in which air is blown all over the projector apparatus without locally cooling the concave reflecting mirror. Temperature of the outer surface of the concave reflecting mirror near the upper part of the arc tube of 580 to 450
The temperature of the upper part of the arc tube of the discharge lamp is reduced to 103
It was possible to lower the temperature from 0 ° C to 1005 ° C by 25K. As a result, defects such as devitrification and swelling did not occur in the arc tube, and it was 500 hours when the illuminance of the lamp was maintained (50% of the initial illuminance) and the concave reflecting mirror was not locally cooled. On the other hand, it was 1000 hours, which was a significant improvement.
【００２０】なお、凹面反射鏡の材質として結晶化ガラ
スに替えてホウケイ酸ガラスを使用して、上述の放電ラ
ンプの発光管上部温度を測定したが、１０１５℃までし
か温度の低下はなく、反射鏡が割れる例も見られた。The borosilicate glass was used instead of the crystallized glass as the material of the concave reflecting mirror, and the upper temperature of the arc tube of the above discharge lamp was measured. However, the temperature decreased only up to 1015 ° C. There were also cases where the mirror cracked.
【００２１】本発明において、放電ランプの発光管の最
高温度の低下は、凹面反射鏡から放電ランプへの熱の輻
射量が減少したことと、また凹面反射鏡近傍の局所的な
強い風の流れに起因する対流による熱放散量の増加との
相乗効果によるものと考えられる。In the present invention, the decrease in the maximum temperature of the arc tube of the discharge lamp is caused by the decrease in the amount of heat radiated from the concave reflecting mirror to the discharge lamp, and the local strong wind flow near the concave reflecting mirror. It is thought that this is due to a synergistic effect with the increase in heat dissipation due to convection due to.
【００２２】また、図1の例において、図２に示すよう
に反射鏡首部の上部根元から、開口方向に向かって高さ
４ｍｍ、肉厚３ｍｍの平板で凹面鏡裏面に沿って円弧状
の平板フィン５を配置したところ、反射鏡内面の最後部
温度は、400℃まで低下し、フィンをつけない場合に比
べて、さらに50℃下げることが出来た。この時、ランプ
温度は、1000℃以下となり、ランプの発光管の失透がほ
とんど確認されなくなった。In the example of FIG. 1, as shown in FIG. 2, a flat plate having a height of 4 mm and a wall thickness of 3 mm from the upper root of the reflector neck portion toward the opening direction is an arc-shaped flat plate fin along the back surface of the concave mirror. When No. 5 was placed, the temperature at the rearmost part of the inner surface of the reflecting mirror was lowered to 400 ° C, which was 50 ° C lower than that without fins. At this time, the lamp temperature became 1000 ° C. or lower, and devitrification of the arc tube of the lamp was hardly confirmed.
【００２３】[0023]
【発明の効果】本発明の光源装置は、両端封止型の放電
ランプと、該放電ランプの一方の封止部をその首部に保
持し、該放電ランプからの放射光を前方に向けて出射す
る凹面反射鏡と、該凹面反射鏡の前面を覆う前面ガラス
を有し、水平点灯で使用される密閉構造の光源装置であ
って、該光源装置と離間して配置された吸気ファンから
の冷却風を該放電ランプ上部に近接する該凹面反射鏡外
面部分に局所的に吹きつける導風路を設けた冷却機構が
組み合わされた構成としたので、凹面反射鏡の最高温
度、ひいては放電ランプの発光管上部温度を従来の光源
装置に比べて大幅に下げることができた。According to the light source device of the present invention, a discharge lamp of which both ends are sealed, and one sealing portion of the discharge lamp is held at its neck, and the light emitted from the discharge lamp is emitted forward. A light source device having a hermetically-sealed structure that has a concave reflecting mirror and a front glass that covers the front surface of the concave reflecting mirror, and is used for horizontal lighting, and is cooled by an intake fan that is arranged apart from the light source device. Since the cooling mechanism is provided in combination with an air guide for locally blowing the wind on the outer surface of the concave reflecting mirror near the upper part of the discharge lamp, the maximum temperature of the concave reflecting mirror, and thus the emission of the discharge lamp The temperature at the top of the tube was able to be reduced significantly compared to the conventional light source device.
【００２４】また、結晶化ガラス製の凹面反射鏡を使用
することにより、凹面反射鏡の最高温度、ひいては放電
ランプの発光管上部温度を確実に安全な使用温度に下げ
ることができた。Further, by using the concave reflecting mirror made of crystallized glass, the maximum temperature of the concave reflecting mirror, and by extension, the upper temperature of the arc tube of the discharge lamp could be reliably lowered to a safe working temperature.
【００２５】さらに、冷却フィンを凹面反射鏡に具備
し、反射鏡の高温部の熱伝達面積を数倍にすることによ
り、冷却風による熱伝達量が増大し、凹面反射鏡の最高
温度を下げることができた。Further, by providing the concave reflecting mirror with cooling fins and doubling the heat transfer area of the high temperature portion of the reflecting mirror, the heat transfer amount by the cooling air is increased and the maximum temperature of the concave reflecting mirror is lowered. I was able to.
【００２６】本発明のプロジェクタ装置は、光源装置と
離間して配置された吸気ファンからの冷却風の一部を該
放電ランプの発光管上部に近接する該凹面反射鏡外面部
分に局所的に吹きつける導風路を設けた冷却機構が備わ
った効率の良い冷却をしているので、照度維持率が、凹
面反射鏡の局所的な冷却を行わない従来のプロジェクタ
装置に比べて大幅に改善できた。In the projector apparatus according to the present invention, a part of the cooling air from the intake fan arranged apart from the light source apparatus is locally blown to the outer surface of the concave reflecting mirror near the upper portion of the discharge tube of the discharge lamp. Efficient cooling is provided with a cooling mechanism that provides a wind guide passage to turn on, so the illuminance maintenance rate can be greatly improved compared to the conventional projector device that does not locally cool the concave reflecting mirror. .
【図１】本発明の光源装置の概略図を示す。FIG. 1 shows a schematic view of a light source device of the present invention.
【図２】本発明の光源装置の概略図を示す。FIG. 2 shows a schematic view of a light source device of the present invention.
【図３】本発明のプロジェクタ装置の配置図を示す。FIG. 3 shows a layout of a projector device of the present invention.
【図４】従来の光源装置の概略図を示す。FIG. 4 shows a schematic view of a conventional light source device.
１ 放電ランプ ２ 凹面反射鏡 ３ 前面ガラス ４ 送風ダクト ５ 冷却フィン ６ インテグレータレンズ ７ 偏光ビームスプリッタ ８ 液晶 ９ 投射レンズ １０光源装置 １１色合成クロスプリズム １２ランプ点灯装置 １３吸気ファン １４排気ファン １５冷却風取り込み口 ２１首部 ２２ランプベース部 ２３開口部 １００プロジェクタ装置 1 discharge lamp 2 concave reflector 3 Front glass 4 air duct 5 cooling fins 6 integrator lens 7 Polarizing beam splitter 8 liquid crystal 9 Projection lens 10 light source device 11-color composite cross prism 12 lamp lighting device 13 intake fan 14 exhaust fan 15 Cooling air intake 21 neck 22 Lamp base 23 openings 100 projector device
Claims (4)
プの一方の封止部をその首部に保持し、該放電ランプか
らの放射光を前方に向けて出射する凹面反射鏡と、該凹
面反射鏡の前面を覆う前面ガラスを有し、水平点灯で使
用される密閉構造の光源装置であって、該光源装置と離
間して配置された吸気ファンからの冷却風を該放電ラン
プの発光管上部に近接する該凹面反射鏡外面部分に局所
的に吹きつける導風路を設けた冷却機構が組み合わされ
てなることを特徴とする光源装置。1. A discharge lamp of a both-end sealed type, a concave reflecting mirror which holds one sealing portion of the discharge lamp at a neck portion thereof, and emits light emitted from the discharge lamp toward a front side, A light source device having a closed structure, which has a front glass covering a front surface of a concave reflecting mirror and is used for horizontal lighting, wherein cooling air from an intake fan arranged apart from the light source device emits light from the discharge lamp. A light source device comprising a cooling mechanism provided with an air guide passage locally blown to the outer surface of the concave reflecting mirror adjacent to the upper part of the tube.
ことを特徴とする請求項１に記載の光源装置。2. The light source device according to claim 1, wherein the concave reflecting mirror is made of crystallized glass.
前記凹面反射鏡の外面部分に冷却フィンを具備したこと
を特徴とする請求項１に記載の光源装置。3. The light source device according to claim 1, wherein a cooling fin is provided on an outer surface portion of the concave reflecting mirror adjacent to an upper portion of the discharge lamp of the discharge lamp.
を使用したプロジェクタ装置であって、吸気ファンから
の冷却風の一部を該放電ランプの発光管上部に近接する
該凹面反射鏡外面部分に局所的に吹きつける導風路を設
けた冷却機構が備わったことを特徴とするプロジェクタ
装置。4. A projector device using the light source device according to claim 1, wherein a part of the cooling air from the intake fan is in proximity to the upper portion of the arc tube of the discharge lamp. A projector device comprising a cooling mechanism provided with an air guide passage for locally blowing on an outer surface portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001307204A JP2003115215A (en) | 2001-10-03 | 2001-10-03 | Light source device and projector device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001307204A JP2003115215A (en) | 2001-10-03 | 2001-10-03 | Light source device and projector device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003115215A true JP2003115215A (en) | 2003-04-18 |
Family
ID=19126707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001307204A Pending JP2003115215A (en) | 2001-10-03 | 2001-10-03 | Light source device and projector device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003115215A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006085102A (en) * | 2004-09-17 | 2006-03-30 | Canon Inc | Light source device, and projection display device having this light source device |
| JP2006119130A (en) * | 2004-09-27 | 2006-05-11 | Shimadzu Corp | Light source device |
| KR100608668B1 (en) | 2004-06-01 | 2006-08-08 | 엘지전자 주식회사 | Apparatus for cooling lamp in lcd projection television |
| JP2007329075A (en) * | 2006-06-09 | 2007-12-20 | Mitsubishi Electric Corp | High-pressure discharge lamp |
| US7350926B2 (en) | 2004-06-30 | 2008-04-01 | Victor Company Of Japan, Limited | Light source apparatus and an image display apparatus |
| EP1970757A1 (en) | 2007-03-16 | 2008-09-17 | Young Optics Inc. | Projection apparatus and illumination system thereof |
| US20090000766A1 (en) * | 2006-03-03 | 2009-01-01 | Tte Technology, Inc. | Cooling Structure for Heat Generating Device |
-
2001
- 2001-10-03 JP JP2001307204A patent/JP2003115215A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100608668B1 (en) | 2004-06-01 | 2006-08-08 | 엘지전자 주식회사 | Apparatus for cooling lamp in lcd projection television |
| US7350926B2 (en) | 2004-06-30 | 2008-04-01 | Victor Company Of Japan, Limited | Light source apparatus and an image display apparatus |
| JP2006085102A (en) * | 2004-09-17 | 2006-03-30 | Canon Inc | Light source device, and projection display device having this light source device |
| JP2006119130A (en) * | 2004-09-27 | 2006-05-11 | Shimadzu Corp | Light source device |
| US20090000766A1 (en) * | 2006-03-03 | 2009-01-01 | Tte Technology, Inc. | Cooling Structure for Heat Generating Device |
| JP2007329075A (en) * | 2006-06-09 | 2007-12-20 | Mitsubishi Electric Corp | High-pressure discharge lamp |
| EP1970757A1 (en) | 2007-03-16 | 2008-09-17 | Young Optics Inc. | Projection apparatus and illumination system thereof |
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