JP2003346715A - Flash discharge tube - Google Patents
Flash discharge tubeInfo
- Publication number
- JP2003346715A JP2003346715A JP2002157504A JP2002157504A JP2003346715A JP 2003346715 A JP2003346715 A JP 2003346715A JP 2002157504 A JP2002157504 A JP 2002157504A JP 2002157504 A JP2002157504 A JP 2002157504A JP 2003346715 A JP2003346715 A JP 2003346715A
- Authority
- JP
- Japan
- Prior art keywords
- light
- opening
- transmitting
- discharge tube
- sealing plate
- 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
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、閃光放電管として
いわゆる豆球のような片側封止タイプの閃光放電管の改
良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a one-side sealed type flash discharge tube such as a so-called bean ball as a flash discharge tube.
【０００２】[0002]
【従来の技術】近年、直管タイプの閃光放電管に代えて
豆球のような片側封止タイプの閃光放電管が提案されて
いる。このようなものとして、一端が開口端部である透
光性外囲器の内部を複数空間に分割し、この開口端部を
ベースにより気密封着すると共に陽極および陰極を気密
保持した片側封止閃光放電管の製造方法が特公平６−２
８１３３号公告にて提案されている。2. Description of the Related Art In recent years, a one-side sealed type flash discharge tube such as a pea ball has been proposed in place of a straight tube type flash discharge tube. As such, the inside of the light-transmitting envelope whose one end is an open end is divided into a plurality of spaces, and the open end is hermetically sealed with a base, and a one-sided sealing in which the anode and the cathode are airtightly held. The production method of the flash discharge tube is 6-2
It has been proposed in 8133 publication.
【０００３】一方、直管タイプの閃光放電管において、
発光管とリフレクタとプロテクタの役目を１つの透明ブ
ロックで兼ねたストロボが実開昭６０−１７７４１０号
公報にて提案されている。これは、透明ブロックの前面
を光放出面として形成すると共に、後面断面形状を略放
物線形状に形成し、透明ブロックの孔にキセノンガスを
封入して発光管として構成すると共に、透明ブロック後
面に金属蒸着による反射面を設け、透明ブロック後面の
前面側周縁には全反射を利用するための未蒸着面を設け
たものである。On the other hand, in a straight tube type flash discharge tube,
Japanese Utility Model Application Laid-Open No. Sho 60-177410 proposes a strobe in which the roles of an arc tube, a reflector, and a protector are combined by one transparent block. In this method, the front surface of the transparent block is formed as a light emitting surface, the rear cross section is formed in a substantially parabolic shape, xenon gas is sealed in the holes of the transparent block, and a metal tube is formed on the rear surface of the transparent block. A reflective surface is provided by vapor deposition, and a non-vapor-deposited surface for utilizing total reflection is provided on the peripheral edge of the front surface behind the transparent block.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記の
特公平６−２８１３３号公告の閃光放電管では、発光管
である透光性外囲器に集光性はないため、カメラのスト
ロボとして使用するには、さらに反射傘やフレネルレン
ズ等が必要になり、従来の直管タイプの閃光放電管を用
いたストロボに比べて部品点数に差が出ないため、最大
のメリットである小型化に対する寄与率が低い。However, in the flash discharge tube disclosed in Japanese Patent Publication No. Hei 6-28133, the light-transmitting envelope, which is a light-emitting tube, has no light-collecting property, and is therefore used as a strobe for a camera. Requires a reflector and a Fresnel lens, so there is no difference in the number of parts compared to a conventional flash with a straight-tube type flash discharge tube. Is low.
【０００５】また、上記の実開昭６０−１７７４１０号
公報のストロボでは、発光管とリフレクタとプロテクタ
の役目を１つの透明ブロックで兼ねているが、発光管か
ら射出される光束は、直接光と透明ブロック後面による
反射光および全反射光が共に同一面（透明ブロック前面
の光射出面）から射出するため集光性が悪い。さらに、
左右方向の集光に関しては何の記載もない。In the above-described strobe disclosed in Japanese Utility Model Application Publication No. Sho 60-177410, the function of the arc tube, the reflector, and the protector is shared by a single transparent block. Light reflected by the rear surface of the transparent block and total reflection light are both emitted from the same surface (the light exit surface on the front surface of the transparent block), so that the light collecting property is poor. further,
There is no description about light collection in the left-right direction.
【０００６】本発明はこのような問題点に鑑みなされた
もので、小型で高効率の集光特性を持つ閃光放電管を提
供することを目的とするものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a flash discharge tube having a small size and high light-collecting characteristics.
【０００７】[0007]
【課題を解決するための手段】上記の目的を達成するた
めに、請求項１に記載の本発明は、一端に開口部を有す
る透光性封体と、該透光性封体の前記開口部を封着する
封着板と、該封着板に配置されるカソードおよびアノー
ド電極端子とを有する閃光放電管において、該透光性封
体の開口部とは反対側に、光源中心から射出される光束
を投光方向に導く導光部を一体的に設けた閃光放電管と
するものである。According to one aspect of the present invention, there is provided a light-transmitting seal having an opening at one end and the opening of the light-transmitting seal. In a flash discharge tube having a sealing plate for sealing the portion and a cathode and an anode electrode terminal arranged on the sealing plate, the light is emitted from the center of the light source to the side opposite to the opening of the translucent sealing body. This is a flash discharge tube integrally provided with a light guide section for guiding a light beam to be emitted in the light projection direction.
【０００８】この構成では、透光性封体そのものが集光
特性をもつため、集光手段を別に設ける必要がない。In this configuration, since the light-transmitting seal itself has light-collecting characteristics, it is not necessary to separately provide light-collecting means.
【０００９】また、上記目的を達成するために、請求項
２記載の本発明は、一端に開口部を有する透光性封体
と、該透光性封体の前記開口部を封着する封着板と、該
封着板に配置されるカソードおよびアノード電極端子と
を有する閃光放電管において、該透光性封体の開口部と
は反対側の中央部近傍の投光方向における肉厚に変化を
持たせた正の屈折力を持つ導光部を一体的に設けるとと
もに、該透光性封体の開口部とは反対側の周辺部に光源
中心から射出される光束の一部を反射面により全反射さ
せて投光方向に導く導光部を一体的に設けた閃光放電管
とするものである。According to another aspect of the present invention, there is provided a light-transmitting seal having an opening at one end, and a seal for sealing the opening of the light-transmitting seal. In a flash discharge tube having a mounting plate and a cathode and an anode electrode terminal disposed on the sealing plate, the thickness in the light-projecting direction near a central portion opposite to the opening of the translucent sealing member is increased. A light guide portion having a positive refractive power with a change is integrally provided, and a part of the light beam emitted from the center of the light source is reflected on a peripheral portion opposite to the opening portion of the light-transmitting seal. A flash discharge tube integrally provided with a light guide part that is totally reflected by a surface and guides the light in the light projection direction.
【００１０】この構成では、透光性封体そのものが集光
特性をもつため、集光手段を別に設ける必要がないとと
もに、透光性封体の導光部を中央部近傍と周辺部とに分
けて集光させることで、直接光と全反射光の射出面を異
ならせて集光効率を上げることが可能である。In this configuration, since the light-transmitting seal itself has light-collecting characteristics, it is not necessary to provide a separate light-condensing means, and the light-guiding portion of the light-transmitting seal is located near the center and the periphery. By separately collecting light, it is possible to increase the light-collecting efficiency by making the emission surfaces of the direct light and the totally reflected light different.
【００１１】また、上記目的を達成するために、請求項
３記載の本発明は、該透光性封体に一体的に設けられる
導光部は、中央部近傍前面が非球面形状、中央部近傍後
面が球面形状、周辺部前面が平面形状、周辺部後面の断
面が略放物線形状に形成された略円柱形状である閃光放
電管とするものである。According to a third aspect of the present invention, there is provided a light guide unit provided integrally with the light-transmitting encapsulation, wherein the front surface near the center has an aspheric shape, The flash discharge tube has a substantially rear surface in a spherical shape, a flat front surface in a peripheral portion, and a substantially cylindrical shape in which a cross section of the rear surface in the peripheral portion is formed in a substantially parabolic shape.
【００１２】この構成では、発光部から射出される光束
のうち、透光性封体の中央部近傍を通る光束は直接光と
して集光可能となり、透光性封体の周辺部を通る光束は
全反射光として集光可能となる。また、透光性封体の導
光部は略円柱形状であるため、上下・左右方向ともに集
光可能となる。With this configuration, of the light beams emitted from the light emitting portion, the light beam passing near the central portion of the light-transmitting seal can be directly collected as light, and the light beam passing through the peripheral portion of the light-transmitting seal can be collected. Light can be collected as total reflection light. In addition, since the light guide portion of the translucent sealing member has a substantially cylindrical shape, light can be collected in both the vertical and horizontal directions.
【００１３】また、上記目的を達成するために、請求項
４記載の本発明は、該封着板の内面の一部は略球面形状
の反射板で構成される閃光放電管とするものである。According to a fourth aspect of the present invention, there is provided a flash discharge tube in which a part of the inner surface of the sealing plate is formed of a substantially spherical reflecting plate. .
【００１４】この構成では、発光部から射出される光束
のうち、背面（封着板側）に射出される光束を反射させ
て投光方向に導くことが可能となる。With this configuration, of the light beams emitted from the light emitting section, the light beam emitted to the back surface (the sealing plate side) can be reflected and guided in the light projection direction.
【００１５】[0015]
【発明の実施の形態】以下、本発明を図示の実施の形態
に基づいて詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments.
【００１６】図１は本発明の実施の形態に係る閃光放電
管の斜視図である。FIG. 1 is a perspective view of a flash discharge tube according to an embodiment of the present invention.
【００１７】同図において、１はガラスモールド等によ
り形成される透光性封体であり、その一端（すなわち、
投光方向における手前側）には開口部１ａを有する。２
はセラミック等により形成される封着板であり、該封着
板２はそれぞれアノード電極端子３およびカソード電極
端子４が貫通配置された状態で、該透光性封体１の開ロ
部１ａに挿入され、該封着板２の前端部２ａが該透光性
封体１の開口段部１ｂに突き当たった状態で、該透光性
封体１の開口部１ａは該封着板２により封着される。In FIG. 1, reference numeral 1 denotes a light-transmitting seal formed by a glass mold or the like.
An opening 1a is provided on the near side (in the light projection direction). 2
Is a sealing plate formed of ceramics or the like. The sealing plate 2 is disposed on the opening portion 1a of the light-transmitting sealing body 1 in a state where the anode electrode terminal 3 and the cathode electrode terminal 4 are respectively disposed through the sealing plate. With the front end 2a of the sealing plate 2 inserted into the opening step 1b of the light-transmitting seal 1, the opening 1a of the light-transmitting seal 1 is sealed by the sealing plate 2. Be worn.
【００１８】図２は本発明の実施の形態に係る閃光放電
管の横断面図であり、図１と共通のものには同一符号を
記して説明を省略する。FIG. 2 is a cross-sectional view of the flash discharge tube according to the embodiment of the present invention. The same reference numerals as those in FIG. 1 denote the same parts, and a description thereof will be omitted.
【００１９】同図において、該透光性封体１の開口部１
ａが形成されている側の端面の中央近傍において、１ｃ
は球面形状に形成される入射面であり、該透光性封体１
の開口部１ａが形成されていない側の端面（投光方向側
の端面）においては、１ｄは非球面形状に形成される中
央部近傍射出面、１ｅは略放物線形状に形成される全反
射面、１ｆは平面形状に形成される周辺部射出面であ
る。なお、該透光性封体１は図２の断面形状をなす略円
柱形状に形成される。In FIG. 1, an opening 1 of the light-transmitting sealing body 1 is shown.
1c near the center of the end face on the side where a is formed.
Is a light incident surface formed in a spherical shape,
In the end face on the side where the opening 1a is not formed (end face on the light projection direction side), 1d is an exit face near the center formed in an aspherical shape, and 1e is a total reflection face formed in a substantially parabolic shape. Reference numeral 1f denotes a peripheral exit surface formed in a planar shape. The translucent sealing body 1 is formed in a substantially cylindrical shape having a cross-sectional shape shown in FIG.
【００２０】２ｂは該封着板２の内側に略球面形状に形
成される反射面で、２ｃは該アノード電極端子３と該カ
ソード電極端子４との間に配置され、該透光性封体１の
入射面１ｃと該封着板２の反射面２ｂとの間にできる空
間の一部を２室に分ける遮蔽板である。該遮蔽板２ｃに
より該アノード電極端子３と該カソード電極端子４間の
アーク長が所定の長さに調整される。Reference numeral 2b denotes a reflection surface formed in a substantially spherical shape inside the sealing plate 2, and 2c is disposed between the anode electrode terminal 3 and the cathode electrode terminal 4; The shielding plate divides a part of a space formed between the first incident surface 1c and the reflecting surface 2b of the sealing plate 2 into two chambers. The arc length between the anode electrode terminal 3 and the cathode electrode terminal 4 is adjusted to a predetermined length by the shielding plate 2c.
【００２１】また、該透光性封体１の入射面１ｃと該封
着板２の反射面２ｂとの間にできる空間にはキセノン等
のガスが封入される。Further, a gas such as xenon is filled in a space formed between the incident surface 1c of the translucent sealing body 1 and the reflecting surface 2b of the sealing plate 2.
【００２２】以上の該透光性封体１から該カソード電極
端子４までにより閃光放電管が構成される。A flash discharge tube is constituted by the above-mentioned transparent envelope 1 to the cathode electrode terminal 4.
【００２３】また、図示していないが、該透光性封体１
の外周面には酸化錫を主成分とする透明導電性皮膜が塗
布され、トリガー電極として作用している。Although not shown, the light-transmitting envelope 1
A transparent conductive film containing tin oxide as a main component is applied to the outer peripheral surface of the substrate to function as a trigger electrode.
【００２４】上記の如き閃光放電管を使用する際は、周
知の電源回路によって主キヤパシタに電圧を蓄え、該ト
リガ電極に高圧のリンギング電圧を印加する。すると、
該カソード電極端子４から該アノード電極端子３へと電
子が放出されるアーク放電が発生し、これが閃光光とな
る。すなわち、カソード電極端子４およびアノード電極
端子３は光源を構成している。When the flash discharge tube as described above is used, a voltage is stored in the main capacitor by a well-known power supply circuit, and a high ringing voltage is applied to the trigger electrode. Then
An arc discharge in which electrons are emitted from the cathode electrode terminal 4 to the anode electrode terminal 3 occurs, and this becomes flash light. That is, the cathode electrode terminal 4 and the anode electrode terminal 3 constitute a light source.
【００２５】図３は本発明の実施の形態に係る閃光放電
管の縦断面光路図であり、図１および図２と共通のもの
には同一符号を記している。FIG. 3 is a vertical cross-sectional optical path diagram of a flash discharge tube according to an embodiment of the present invention, in which the same reference numerals as those in FIGS. 1 and 2 denote the same parts.
【００２６】アーク放電による閃光光源の光源中心から
射出される光束のうち、前面側（図中右方向）に射出さ
れる光束は、該入射面１ｃから入射したのち、中央の光
束は該中央部近傍射出面１ｄから直接射出される。ここ
で、球面形状である該入射面１ｃと非球面形状である該
中央部近傍射出面１ｄとで正の屈折力を持つように、光
射出方向（投光方向）における肉厚に変化を持たせてあ
り、これにより、該中央部近傍射出面１ｄから射出され
る光束は光射出光軸（投光方向）に対して略平行の状態
になる。Of the luminous flux emitted from the center of the flash light source due to the arc discharge, the luminous flux emitted to the front side (rightward in the drawing) enters from the incident surface 1c, and the central luminous flux changes to the central portion. It is directly emitted from the near emission surface 1d. Here, the thickness in the light emission direction (light projection direction) is changed so that the spherical entrance surface 1c and the aspheric exit surface 1d near the center have a positive refractive power. As a result, the light beam emitted from the emission surface 1d near the center becomes substantially parallel to the light emission optical axis (light projection direction).
【００２７】また、該入射面１ｃから入射した光束のう
ち、周辺の光束は該全反射面１ｅにて全反射したのち、
該周辺部射出面１ｆから射出される。ここで、該全反射
面１ｅはその断面形状が光源中心に対して略放物線形状
をなしており（すなわち、略すり鉢状の形状をなしてい
る）、これにより、該周辺部射出面１ｆから射出される
光束は光射出光軸に対して略平行の状態になる。Further, among the light beams incident from the incident surface 1c, the peripheral light beams are totally reflected by the total reflection surface 1e.
The light is emitted from the peripheral emission surface 1f. Here, the cross-sectional shape of the total reflection surface 1e has a substantially parabolic shape with respect to the center of the light source (that is, it has a substantially mortar-like shape). The emitted light flux is substantially parallel to the light emission optical axis.
【００２８】一方、該透光性封体１の開口部１ａ側であ
る背面側（図中左方向）に射出される光束は、該封着板
２の内側に略球面形状に形成される反射面２ｂにて反射
して、光源中心方向に反転し、その後は上記の前面側
（図中右方向）に射出される光束と同様の光路をたど
る。On the other hand, a light beam emitted to the back side (left direction in the drawing), which is the opening 1a side of the translucent sealing member 1, is formed into a substantially spherical shape inside the sealing plate 2. The light is reflected by the surface 2b, is inverted in the direction of the center of the light source, and then follows the same optical path as the light flux emitted to the front side (rightward in the figure).
【００２９】なお、図３においては縦断面光路図で説明
したが、該透光性封体１は略円柱形状であるため、横断
面における光路も同様になる。Although FIG. 3 has been described with reference to a vertical section optical path diagram, since the translucent sealing body 1 has a substantially cylindrical shape, the optical path in the cross section is the same.
【００３０】以上の様に、従来のガラス管に相当する該
透光性封体１に導光部を一体的に形成することで集光特
性を持たせたため、集光手段を別に設ける必要がなく、
コストを安くできるとともに、小型化が可能となる。As described above, since the light-transmitting portion is formed integrally with the light-transmitting sealing member 1 corresponding to a conventional glass tube to provide light-collecting characteristics, it is necessary to separately provide light-collecting means. Not
The cost can be reduced and the size can be reduced.
【００３１】また、光源中心から射出される光束のう
ち、該透光性封体１の中央部近傍を通る光束は直接光と
して集光させ、該透光性封体１の周辺部を通る光束は全
反射光として集光させている。Of the light beam emitted from the center of the light source, the light beam passing near the center of the light-transmitting envelope 1 is condensed as direct light, and the light beam passing through the peripheral portion of the light-transmitting envelope 1. Are condensed as totally reflected light.
【００３２】このように、導光部を中央部近傍と周辺部
とに分けて集光させることで、直接光と全反射光の射出
面を異ならせて集光効率を上げることが可能となる。As described above, by condensing the light guide portion in the vicinity of the central portion and in the peripheral portion, it is possible to increase the light condensing efficiency by making the exit surfaces of the direct light and the totally reflected light different. .
【００３３】また、該透光性封体１の導光部は略円柱形
状であるため、上下・左右方向ともに集光可能となる。Further, since the light guide portion of the light-transmitting sealing body 1 has a substantially cylindrical shape, it is possible to collect light in the vertical and horizontal directions.
【００３４】さらに、該封着板２の内側に略球面形状に
形成される反射面２ｂにより、光源中心から射出される
光束のうち、背面側（封着板側）に射出される光束を反
射させて投光方向に導くことが可能となるため、集光効
率が向上する。Further, of the light beam emitted from the center of the light source, the light beam emitted to the back side (sealing plate side) is reflected by the reflecting surface 2b formed in a substantially spherical shape inside the sealing plate 2. As a result, the light can be guided in the light projection direction, so that the light collection efficiency is improved.
【００３５】（発明と実施の形態の対応）上記実施の形
態において、図１乃至図３の透光性封体１が本発明の透
光性封体１に相当し、図１乃至図３の封着板２が本発明
の封着板に相当し、図１乃至図３のアノード電極端子３
が本発明のアノード電極端子に相当し、図１および図２
のカソード電極端子４が本発明のカソード電極端子に相
当する。(Correspondence between the Invention and the Embodiment) In the above embodiment, the light-transmitting seal 1 of FIGS. 1 to 3 corresponds to the light-transmitting seal 1 of the present invention. The sealing plate 2 corresponds to the sealing plate of the present invention, and the anode electrode terminal 3 shown in FIGS.
1 and 2 correspond to the anode electrode terminal of the present invention.
Corresponds to the cathode electrode terminal of the present invention.
【００３６】以上が実施の形態の各構成と本発明の各構
成の対応関係であるが、本発明はこれら実施の形態に限
定されるものではなく、請求項で示した機能、または実
施の形態がもつ機能が達成できる構成であればどのよう
なものであっても良いことは言うまでもない。The correspondence between the components of the embodiment and the components of the present invention has been described above. However, the present invention is not limited to these embodiments, and the functions described in the claims or the embodiments are not limited thereto. Needless to say, any configuration may be used as long as the function of the device can be achieved.
【００３７】[0037]
【発明の効果】以上説明したように、本出願に係る第１
の発明によれば、透光性封体に導光部を一体的に形成す
ることで集光特性を持たせたため、集光手段を別に設け
る必要がなく、コストを安＜できるとともに、小型化が
可能となる。As described above, the first embodiment according to the present application is described.
According to the invention, since the light-guiding portion is formed integrally with the light-transmitting sealing body, the light-gathering characteristics are provided. Therefore, it is not necessary to provide a separate light-gathering means, so that the cost can be reduced and the size can be reduced. Becomes possible.
【００３８】また、本出願に係る第２の発明によれば、
透光性封体そのものが集光特性をもつため、集光手段を
別に設ける必要がないとともに、透光性封体の導光部を
中央部近傍と周辺部とに分けて集光させることで、直接
光と全反射光の射出面を異ならせて集光効率を上げるこ
とが可能である。According to the second aspect of the present invention,
Since the light-transmitting envelope itself has light-gathering characteristics, it is not necessary to provide a separate light-gathering means, and the light-guiding portion of the light-transmitting envelope is divided into a central portion and a peripheral portion to condense light. It is possible to increase the light-collecting efficiency by making the exit surfaces of the direct light and the totally reflected light different.
【００３９】また、本出願に係る第３の発明によれば、
発光部から射出される光束のうち、透光性封体の中央部
近傍を通る光束は直接光として集光可能となり、透光性
封体の周辺部を通る光束は全反射光として集光可能とな
る。また、透光性封体の導光部は略円柱形状であるた
め、上下・左右方向ともに集光可能となる。According to the third aspect of the present invention,
Of the luminous flux emitted from the light emitting unit, the luminous flux passing near the center of the translucent envelope can be collected as direct light, and the luminous flux passing through the periphery of the translucent envelope can be collected as total reflection light. Becomes In addition, since the light guide portion of the translucent sealing member has a substantially cylindrical shape, light can be collected in both the vertical and horizontal directions.
【００４０】また、本出願に係る第４の発明によれば、
発光部から射出される光束のうち、背面（封着板側）に
射出される光束を反射させて投光方向に導くことが可能
となり、集光効率が向上する。According to the fourth aspect of the present invention,
Of the light beams emitted from the light emitting unit, the light beam emitted to the back surface (the sealing plate side) can be reflected and guided in the light projection direction, and the light collection efficiency is improved.
【図１】本発明の実施の形態に係る閃光放電管の斜視図
である。FIG. 1 is a perspective view of a flash discharge tube according to an embodiment of the present invention.
【図２】本発明の実施の形態に係る閃光放電管の横断面
図である。FIG. 2 is a cross-sectional view of the flash discharge tube according to the embodiment of the present invention.
【図３】本発明の実施の形態に係る閃光放電管の縦断面
光路図である。FIG. 3 is a vertical sectional optical path diagram of a flash discharge tube according to an embodiment of the present invention.
１ 透光性封体 ２ 封着板 ３ アノード電極端子 ４ カソード電極端子 1 Translucent sealing body 2 Sealing plate 3 Anode terminal 4 Cathode electrode terminal
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） // Ｆ２１Ｙ 101:00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification code FI Theme coat ゛ (Reference) // F21Y 101: 00
Claims (4)
透光性封体の前記開口部を封着する封着板と、該封着板
に配置されるカソードおよびアノード電極端子とを有す
る閃光放電管において、 該透光性封体の開口部とは反対側に、光源中心から射出
される光束を投光方向に導く導光部を一体的に設けたこ
とを特徴とする閃光放電管。1. A light-transmitting seal having an opening at one end, a sealing plate for sealing the opening of the light-transmitting seal, and a cathode and an anode electrode terminal arranged on the sealing plate. Wherein a light guide portion for guiding a light beam emitted from the center of the light source in the light projection direction is integrally provided on the side opposite to the opening of the light-transmitting sealing body. Flash tube.
透光性封体の前記開口部を封着する封着板と、該封着板
に配置されるカソードおよびアノード電極端子とを有す
る閃光放電管において、 該透光性封体の開口部とは反対側の中央部近傍の投光方
向における肉厚に変化を持たせた正の屈折力を持つ導光
部を一体的に設けるとともに、該透光性封体の開口部と
は反対側の周辺部に光源中心から射出される光束の一部
を反射面により全反射させて投光方向に導く導光部を一
体的に設けたことを特徴とする閃光放電管。2. A light-transmitting seal having an opening at one end, a sealing plate for sealing the opening of the light-transmitting seal, and a cathode and an anode electrode terminal arranged on the sealing plate. And a light guide portion having a positive refractive power having a change in the thickness in the light projection direction near a central portion opposite to the opening portion of the light-transmitting sealing body. And a light guide portion, which is partially integrated with a light guide portion that is totally reflected by the reflection surface and is guided in the light projection direction at a peripheral portion opposite to the opening portion of the light-transmitting sealing body. A flash discharge tube, characterized in that it is provided in a flash lamp.
部は、中央部近傍前面が非球面形状、中央部近傍後面が
球面形状、周辺部前面が平面形状、周辺部後面の断面が
略放物線形状に形成された略円柱形状であることを特徴
とする請求項２に記載の閃光放電管。3. A light guide portion provided integrally with the light-transmitting sealing body, wherein the front surface near the central portion has an aspherical shape, the rear surface near the central portion has a spherical shape, the peripheral front surface has a flat shape, and the peripheral rear surface has a flat shape. 3. The flash discharge tube according to claim 2, wherein the cross section has a substantially cylindrical shape formed in a substantially parabolic shape.
射板で構成されることを特徴とする請求項２又は３に記
載の閃光放電管。4. The flash discharge tube according to claim 2, wherein a part of the inner surface of the sealing plate is formed of a substantially spherical reflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002157504A JP2003346715A (en) | 2002-05-30 | 2002-05-30 | Flash discharge tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002157504A JP2003346715A (en) | 2002-05-30 | 2002-05-30 | Flash discharge tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003346715A true JP2003346715A (en) | 2003-12-05 |
Family
ID=29773339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002157504A Pending JP2003346715A (en) | 2002-05-30 | 2002-05-30 | Flash discharge tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003346715A (en) |
-
2002
- 2002-05-30 JP JP2002157504A patent/JP2003346715A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7390116B2 (en) | High-brightness, compact illuminator with integrated optical elements | |
| US6863418B2 (en) | Light source for projector and projection type image display apparatus using thereof | |
| JP3184404B2 (en) | Metal halide lamp with reflector | |
| FR2839139B1 (en) | LUMINAIRE-FREE ELLIPTICAL LIGHTING MODULE COMPRISING A CUT-OFF LIGHTING BEAM AND PROJECTOR COMPRISING SUCH A MODULE | |
| JP4193855B2 (en) | Light source device and projector | |
| EP0961900B1 (en) | Unit of electric lamp and reflector | |
| JP2003346715A (en) | Flash discharge tube | |
| US20070279916A1 (en) | Light source device | |
| JP3557988B2 (en) | Light source device | |
| JP4006375B2 (en) | Lighting device and electronic device | |
| CN112393198B (en) | Miniaturized light projection device | |
| CN113067968A (en) | Shooting assembly and mobile terminal | |
| JP3235357B2 (en) | Tube with reflector | |
| JPH103803A (en) | Inner lens of lamp for vehicle | |
| US20120099085A1 (en) | Light emitting diode package and projection apparatus | |
| TWI694934B (en) | Miniaturized light-projecting device | |
| JP4736961B2 (en) | Light source device | |
| JP5573141B2 (en) | Strobe device | |
| JP3387316B2 (en) | Light source device | |
| JP2001125176A (en) | Electronic flashing device | |
| CN210107264U (en) | Miniaturized light projection device | |
| JPH11162219A (en) | Lighting system | |
| TWI628388B (en) | Laser car lamp and night vision system using the same | |
| JPS59884Y2 (en) | Optical system equipment for fiberscope | |
| JPH03136024A (en) | Discharge light emitting tube |