WO2006045232A1 - Ampoule de lampe pour projecteur et lampe pour projecteur avec l'ampoule - Google Patents

Ampoule de lampe pour projecteur et lampe pour projecteur avec l'ampoule Download PDF

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Publication number
WO2006045232A1
WO2006045232A1 PCT/CN2005/001388 CN2005001388W WO2006045232A1 WO 2006045232 A1 WO2006045232 A1 WO 2006045232A1 CN 2005001388 W CN2005001388 W CN 2005001388W WO 2006045232 A1 WO2006045232 A1 WO 2006045232A1
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WIPO (PCT)
Prior art keywords
bubble
mirror
projection lamp
bulb
projection
Prior art date
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Ceased
Application number
PCT/CN2005/001388
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English (en)
Chinese (zh)
Inventor
Xiaoling Luo
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Individual
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Individual
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Filing date
Publication date
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Publication of WO2006045232A1 publication Critical patent/WO2006045232A1/fr
Anticipated expiration legal-status Critical
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/025—Associated optical elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers

Definitions

  • the present invention relates to the field of optics, and more particularly to a projection lamp bulb for use in a projection system and a projection lamp using the same.
  • the projection lamp in the projection system includes a projection lamp bulb (light source) and an inner surface curved mirror (hereinafter referred to as a curved mirror).
  • the lamp bulb is usually equipped with a gas discharge lamp, such as a gold lamp (i.e., a metal lamp), an ultra-high pressure mercury lamp, or the like.
  • a gas discharge lamp such as a gold lamp (i.e., a metal lamp), an ultra-high pressure mercury lamp, or the like.
  • discharge lamp refers to a vapor which is filled with an appropriate amount of mercury and/or a metal compound such as a metal which generates an arc discharge and emits light under the action of an electrode voltage.
  • the bubble is the light-emitting portion of the gas discharge lamp.
  • the lamp bulb is matched with a curved mirror to cause the light from the lamp bulb to be projected in a specified direction for further processing by the subsequent path.
  • the curved mirror includes a spherical mirror (hereinafter referred to as a spherical mirror), an ellipsoidal mirror (hereinafter referred to as an ellipsoidal mirror), and a parabolic mirror (hereinafter referred to as a parabolic mirror).
  • the lamp bulb is usually located at the focus of the curved mirror, ie the bulb of the lamp is usually at the focus of the curved mirror.
  • the lamp bulb can be divided into single-ended and double-ended.
  • double-ended bulbs are mainly used.
  • the so-called double-ended bulb refers to an electrode in which the bubble body is located in the middle portion and the two ends of the bubble body are elongated; and the two electrodes are respectively wrapped by the glass column.
  • the shape of the bubble of the double-ended bulb is generally spherical or ellipsoidal.
  • spherical bubble is meant that the projection of the bubble in a plane parallel to the polar axis is circular.
  • ellipsoidal bubble is meant that the projection of the bubble in a plane parallel to the polar axis is elliptical.
  • the polar axis refers to the line between the end points of the two electrodes in the bubble.
  • the lamp bulb includes an ellipsoidal bulb 110, two electrodes 120, and a glass column 130.
  • the ellipsoidal bubble body 110 is located at the center, and the electrode 120 is taken out at both ends of the ellipsoidal bubble body 110. Also, the electrode 120 is wrapped in a glass column 130.
  • the projection lamp bulb includes a spherical bubble body 160, two electrodes 180, and a glass column 170.
  • the spherical bubble body 160 is located in the middle portion, and the electrode 180 is drawn at both ends of the spherical bubble body 160. Also, the electrode 180 is wrapped in a glass column 170.
  • the combination of the projection lamp bulb and the curved mirror has two modes: direct loading and horizontal mounting.
  • direct loading means that the electrode is coaxial with the optical axis, and the bubble is on the optical axis.
  • This method is suitable for single-ended and double-ended projection lamps; horizontally means that the electrode is perpendicular to the optical axis, and the bubble is On the optical axis.
  • the lamp bulb is mounted in a horizontally mounted manner with the spherical mirror 210. That is, the bulb 220 of the projection lamp is located at the focal point F of the spherical mirror 210, and the electrodes (not labeled) at both ends and the glass column 230 covering the electrodes are respectively located on both sides of the optical axis and perpendicular to the optical axis. Since the spherical mirror has such a characteristic that the light from the focus of the spherical mirror is reflected by the spherical mirror, it will converge at the focus.
  • the light from the bubble body 220 is reflected by the inner surface 240 of the spherical mirror 210 and then returned to the position of the bubble body 220 and emitted at the position of the bubble body 220 without the light being reflected onto the glass column 230.
  • the glass column 230 at both ends of the bubble body 220 does not block the light. Therefore, in practical applications, the lamp bulb is usually fitted in a horizontally mounted manner with a spherical mirror.
  • the projection lamp bulb is matched with the ellipsoidal mirror 310 in a horizontal manner. That is, the bubble 330 of the projection lamp bulb is located at the first focus F1 of the ellipsoidal mirror 310, and the bubble
  • the electrodes (not labeled) at both ends of the body 330 and the glass columns 320 encasing the electrodes are respectively located on both sides of the optical axis and perpendicular to the optical axis. Since the ellipsoidal mirror has such a characteristic that the light from the first focus of the ellipsoidal mirror is reflected by the ellipsoidal mirror, it converges on the second focus.
  • the partially reflected light directly converges on the second focus F2; the partially reflected light is projected onto the bubble body 330, and is refracted by the bubble body 330 and then radiated outward.
  • the second focus F2 cannot be reached and thus cannot be utilized; and some of the reflected light is projected onto the glass column 320, refracted by the glass column 320 and then diverge outward, and likewise cannot reach the second focus F2, and cannot be utilized.
  • shaded portion 420 is the shadow produced by the lamp bulb on a plane perpendicular to the optical axis.
  • light from a curved mirror is projected onto the bulb and glass column of the lamp bulb and is refracted to diverge outwardly so that it cannot be utilized.
  • the projection lamp bulb produces a shadow on a plane perpendicular to the optical axis.
  • the size of the shadow is related to the size of the orthographic projection of the bubble in a plane parallel to the polar axis of the lamp bulb. Since the arc generated between the two electrodes of the lamp bulb is spindle-shaped, the two electrodes generate heat in addition to the heat generated by the arc when the lamp is in operation. Referring to FIG. 1a, when the projection lamp bulb emits light, the temperature in the vicinity of the portion electrode 120 indicated by the broken line frame in the drawing is high, and the temperature at the place is sufficient to deform or rupture the glass constituting the bubble body 110, so the electrode 120 must be at the portion in this portion. Keep a certain distance from the bulb 110 of the bulb to prevent the electrode Simultaneously with the arc, the bubble glass is baked and deformed.
  • the length of the bubble body 110 in the direction of the polar axis of the projection lamp is constant, that is, the diameter of the spherical bubble body is constant under this condition, and the long axis of the ellipsoidal bubble body is also Certainly, such that the diameter of the bubble body in the direction perpendicular to the polar axis has a limit value, so as to ensure a sufficient distance between the portion of the bubble body 110 in the dotted line frame and the electrode 120 in FIG. 1a, for example, a gas discharge lamp of 100 W.
  • the outer diameter of the ellipsoidal bulb is not less than 9 mm, which is a current technical limit.
  • the arc of the spindle type will increase accordingly, and the bubble body will also increase. If the ellipsoidal bubble body continues to be used, the outer diameter will reach 13mm or more, and the diameter of the spherical bubble body will be more. Big. Therefore, under the same conditions, the ellipsoidal bubble has a smaller shadow than the sphere, but it is still not enough to eliminate the shadow.
  • the double-ended projection lamp bulb in order to eliminate the shadow generated when the double-ended projection lamp bulb is used in a horizontally mounted manner with the ellipsoidal mirror and the parabolic mirror, the double-ended projection lamp bulb is often matched with the ellipsoidal mirror and the parabolic mirror in a straight-fit manner.
  • the lamp bulb is mounted in a straight-fit manner with the ellipsoid mirror 510. That is, the bubble 530 of the projection lamp bulb is located at the first focus F1 of the ellipsoidal mirror 510, and the electrodes (not labeled) at both ends of the bubble and the glass column 520 covering the electrode are coaxial with the optical axis. After the light from the bubble 530 is reflected by the inner surface 540 of the spherical mirror 510, the light is directly concentrated at the second focus F2 and utilized. Thus, this cooperation does not produce a hatched portion as shown in Fig. 4 on a plane perpendicular to the optical axis.
  • the lamp bulb is mounted in a straight-fit manner with a parabolic mirror. That is, the bulb of the projection lamp bulb is located at the focal point F of the parabolic mirror, and the electrodes (not labeled) at both ends of the bulb and the glass column enclosing the electrode are coaxial with the optical axis.
  • This type of fit also does not produce a shaded portion as shown in Figure 4 on a plane perpendicular to the optical axis.
  • the lamp bulb is in direct mounting with an ellipsoidal mirror and a parabolic mirror. Together, you can avoid shadows.
  • the curved mirror that requires the projection lamp has a shorter focal length.
  • a curved mirror that cooperates with a projection lamp has a shorter focal length that will cause the following problems:
  • the light uniformity is low.
  • the projection lamps provided by the prior art are matched with curved mirrors (especially ellipsoidal mirrors and parabolic mirrors) by means of a projection lamp bulb.
  • a curved mirror is required to have a short focal length.
  • a shorter focal length will cause the focus bulb to be too close to the bottom of the curved mirror, causing a large amount of light to be concentrated onto the bottom of the curved mirror, causing the center of the light reflected by the curved mirror to be the edge of the edge.
  • the light uniformity is low.
  • the projection lamps provided by the prior art require a curved mirror to have a short focal length in order to avoid the generation of shadows by matching the projection lamp bulb directly to the curved mirror (especially the ellipsoidal mirror and the parabolic mirror). Since the lamp is located at the focus of the curved mirror, and the temperature of the lamp itself is high. Therefore, the heat from the lamp bulb is concentrated in the curved mirror and is difficult to dissipate, so that the curved mirror needs to withstand higher temperatures. Curved mirrors made of ordinary materials are difficult to withstand the above-mentioned high temperatures, and cracks or deformations often occur. Therefore, in the existing projection system, the curved mirror matched with the projection lamp bulb needs to adopt a material with high temperature resistance and low expansion coefficient, which makes the material cost and processing cost of the curved mirror high, and the processing difficulty is large.
  • the curved mirror matched with the projection lamp has a short service life.
  • the projection lamp provided by the prior art uses a projection lamp bulb to be mounted in the same way as a curved surface in order to avoid shadows. Mirrors (especially ellipsoidal and parabolic mirrors) work together and require curved mirrors with a short focal length. In practical applications, a shorter focal length will cause the curved mirror to withstand higher temperatures.
  • the inner surface of the curved mirror matched with the projection lamp is plated with a reflective film to improve the reflection efficiency.
  • the reflective film generally has a low lifetime at high temperatures.
  • the projection lamp provided by the prior art uses the projection lamp bulb to directly match the curved mirror, which will cause the life of the reflective film of the curved mirror to be greatly shortened or even fall off, thereby shortening the service life.
  • the technical problem to be solved by the present invention is to provide a projection light bulb, which can avoid shadow generation and improve light uniformity when the horizontally mounted light bulb is matched with the curved mirror, and can also reduce the surface reflection.
  • a projection light bulb for use in a projection system comprising a bubble body, two electrodes and two glass columns connected to the bubble body; the bubble body is located in the middle portion, and the two electrodes are respectively located on two sides of the bubble body, And each of the electrodes has one end placed in the bubble body, and the other end is led out of the bubble body and the glass column; wherein the bubble body is tubular.
  • the bubble body may be an elongated glass tube.
  • connection of the bubble to the glass column can be a natural transition morphology.
  • the invention also provides a projection lamp used in a projection system using the above-mentioned projection lamp bulb, comprising a projection lamp bulb and an aspherical mirror matched therewith, wherein the projection lamp is matched with an aspheric mirror in a horizontal manner.
  • the projection lamp bulb comprises a bubble body, two electrodes and two glass columns connected to the bubble body, the bubble body is located in the middle portion, the two electrodes are respectively located on two sides of the bubble body, and each electrode has one end Inside the bubble, the other end In addition to the bubble and the glass column, the bubble is tubular.
  • the aspherical mirror may be an ellipsoidal mirror or a parabolic mirror; or may be a combined mirror; the combined mirror includes a combination of a spherical mirror and an ellipsoidal mirror, or a spherical mirror and a parabolic mirror The combination.
  • the light bulb of the lamp has good light consistency. Since the bulb of the projection lamp adopts a tubular bubble body, the tubular bubble of the projection lamp bulb is elongated and narrow, and the diameter of the entire bubble body can be small (less than the maximum diameter of the spindle arc), and the shape of the bubble body restricts the arc along the length of the bubble body The direction is extended, and since the diameters of the bubbles are the same, the light emission of each part is relatively uniform.
  • the uniformity of the projected light lines is good. Since the light distribution of the projection lamp bulb to the curved mirror is more uniform, since the projection lamp bulb in the projection lamp provided by the present invention is matched with the curved mirror in the projection system (especially an ellipsoidal mirror and a parabolic mirror), As in the prior art, the distance between the projection lamp and the bottom of the curved mirror is greatly shortened or the focal length of the curved mirror is shortened. Thus, the light from the lamp bulb does not converge too much toward the center of the curved mirror. In this way, the distribution of the light from the projection lamp to the reflecting surface will be more uniform, and the light reflected from the reflecting surface, that is, the uniformity of the light emitted by the projection lamp, will be correspondingly increased.
  • the bulb of the projection lamp bulb provided by the present invention is a tubular bubble
  • the projected area on a plane perpendicular to the polar axis of the bulb is much smaller than the projected area of the spherical or ellipsoidal bubble provided by the prior art.
  • the projection lamp bulb in the projection lamp provided by the present invention is matched with the curved mirror in a horizontally mounted manner
  • the shadow portion generated by the tubular bubble body is much smaller than the shadow generated by the projection lamp provided by the prior art.
  • shadowing can be avoided by appropriately adjusting the distance between the bubble and the bottom of the curved mirror without shortening the focal length of the curved mirror as in the prior art.
  • the overall cost of the projection lamp is low.
  • the projection lamp bulb in the projection lamp provided by the invention is matched with the curved mirror (especially the ellipsoidal mirror and the parabolic mirror) in a horizontally mounted manner, there is no need to shorten the focal length like the existing projection lamp, and the direct mounting method and the ellipsoid are adopted.
  • the spherical mirror matches the parabolic mirror. Therefore, the projection lamp bulb in the projection lamp provided by the invention is relatively far from the curved mirror, and the temperature of the curved reflector from the projection lamp is correspondingly low. Therefore, the curved mirror is less prone to cracking and deformation.
  • the curved mirror eliminates the need for materials that are resistant to high temperatures and low expansion coefficients (such as glass-ceramic), which reduces the material cost of the curved mirror.
  • the processing difficulty and cost are also reduced accordingly. Thereby, the overall cost is reduced.
  • the service life is long. Since the projection lamp bulb in the projection lamp provided by the present invention cooperates with the curved mirror, there is no need to shorten the focal length as in the prior art, and the distance of the projection lamp bulb from the bottom of the curved mirror is relatively farther than in the prior art. Therefore, the temperature at the bottom of the curved mirror does not overheat and the overall heat is even. Thus, the reflective film coated on the inner surface of the curved mirror does not withstand higher temperatures. Therefore, the life of the reflective film and the mirror can be extended. At the same time, since the reflective film does not need to withstand higher temperatures, the requirements for the material of the reflective film are lowered, and the cost of the projection lamp can be appropriately reduced.
  • Figure la is a schematic view of an ellipsoidal bubble structure of a conventional projection lamp bulb
  • Figure lb is a schematic view of a spherical bubble structure of a conventional projection lamp bulb
  • FIG. 2 is a schematic view showing a spherical bulb projection lamp bulb in a projection lamp in a horizontally mounted manner and a spherical mirror;
  • Figure 3 is a spherical bulb projection lamp bulb in a projection lamp with a horizontal mounting method and an ellipsoidal surface Schematic diagram of the matching of the mirrors;
  • FIG. 4 is a schematic view showing a projection of a projection lamp in a conventional projection lamp in a plane perpendicular to the optical axis when it is matched with an aspherical mirror;
  • Figure 5 is a schematic view of a projection lamp bulb of a spherical bubble in a projection lamp in a straight-fit manner and an ellipsoidal mirror;
  • FIG. 6 is a schematic structural view of a projection lamp bulb of the present invention.
  • FIG. 7 is a schematic view showing a structure of a projection lamp bulb of a spherical bubble body, an ellipsoidal bubble body and a tubular bubble body;
  • Fig. 8 is a schematic structural view of a projection lamp of the present invention.
  • FIG. 6 is a schematic structural view of a projection lamp bulb of the present invention.
  • the projection lamp bulb of the present invention includes a tubular bubble 610, an electrode 620, and a glass column 630.
  • the tubular bubble body 610 is located at the middle portion, and the electrode 620 is taken out from both ends of the tubular bubble body 610.
  • the electrode 620 is wrapped in the glass column 630.
  • the tubular bubble 610 has a square shape in a section parallel to the plane of the polar axis, and a circular shape in a section perpendicular to the plane of the polar axis. Since the bubble 610 is shaped like a hollow tube, it is called a tubular bubble.
  • the tubular bubble body 610 is filled with an appropriate amount of high-pressure mercury vapor, or a metal-made steam.
  • an appropriate amount of mixed vapor of mercury and metal compounds, or other vapors which can emit light by an electric discharge under the action of an electrode voltage is also possible.
  • the minimum diameter of the bubble is determined by the highest temperature region of the electrode when the electrode is discharged (the area inside the dotted line in Figure la). The minimum diameter allowed by the bubble, so under the same power and the pole distance of the electrode.
  • the diameter of the bubble is smaller than the diameter of the elliptical body at the maximum in the middle of the bubble perpendicular to the polar axis, that is, the diameter of the tubular bubble is the smallest in the vertical direction of the polar axis, and the elliptical bubble is large.
  • the circular bubble body is the largest.
  • the electrode pole pitch is 4 mm or more
  • the smallest diameter of the tubular bubble body is 9 mm
  • the elliptical shape is 13 mm or more
  • the spherical shape is 14 mm or more
  • the pole pitch is larger, the power is larger, and the difference is larger. Big.
  • FIG. 7 is a schematic diagram showing the comparison of the structure of the spherical bubble body, the ellipsoidal bubble body and the tubular bubble body under the same power and electrode pole distance conditions.
  • the tubular bubble 710 has a square shape in a section parallel to the plane of the polar axis, a circular cross section perpendicular to the plane of the polar axis, and each of the sections is equal in size.
  • the ellipsoidal bubble 730 has an elliptical shape in a section parallel to the plane of the polar axis, a circular cross section perpendicular to the plane of the polar axis, and the sizes of the respective sections are not equal.
  • the spherical bubble 720 has a circular cross section in a plane parallel to the polar axis, a circular cross section perpendicular to the plane of the polar axis, and unequal sizes of the respective sections.
  • the rim of the tubular bubble 710 is smaller than the outline of the ellipsoidal bubble 730, and the outline of the ellipsoidal bubble 730 is smaller than the outline of the spherical bubble 720.
  • the projected area of the tubular bubble 710 is the smallest
  • the projected area of the spherical bubble 720 is the largest
  • the projected area of the ellipsoidal bubble 730 is between the projection of the tubular shaped body 710. The area is between the projected area of the spherical bubble 720.
  • connection between the tubular bubble body and the glass column may be any natural transition shape.
  • a smooth arc transition or a straight transition can be used.
  • the shape of the glass column encasing the electrode can also be in various forms as long as it can withstand temperature, can wrap the electrode, and function as an insulation.
  • the projection lamp in this embodiment includes a projection lamp as a light source.
  • the bulb and an aspherical mirror 810 that cooperates with the bulb of the projection lamp includes a tubular bubble 910, an electrode 920, and a glass column 930.
  • the tubular bubble body 910 is located at the middle portion, and the electrode 920 is taken out from both ends of the tubular bubble body 910. Also, the electrode 920 is wrapped in the glass column 930.
  • the tubular bubble body 910 has a square shape in a section parallel to the plane of the polar axis, and a circular shape in a section perpendicular to the plane of the polar axis. Since the bubble body 910 is shaped like a hollow tube, it is called a tubular bubble.
  • the tubular bubble body 910 is filled with an appropriate amount of high-pressure mercury vapor, or metallized steam.
  • an appropriate amount of mixed vapor of mercury and metal halide, or other vapor which can generate an arc discharge under the action of an electrode voltage may be filled with an appropriate amount of high-pressure mercury vapor, or metallized steam.
  • the tubular projection lamp bulb and the curved mirror cooperate in a lateral manner.
  • the aspherical mirror may be an ellipsoidal mirror or a parabolic mirror; or a combined mirror, that is, a combination of a spherical mirror and an ellipsoidal mirror, or a combination of a spherical mirror and a parabolic mirror.
  • the projection lamp bulb adopting the tubular bubble structure has a projection on a plane parallel to the polar axis which is smaller than an ellipsoidal or spherical bubble of the same specification and has uniform light characteristics
  • the projection in the projection lamp provided by the present invention The lamp bulb has a tubular bubble 910 whose projected area is much smaller than the projected area of the ellipsoidal bulb or spherical bubble under the same power and electrode pitch conditions in a plane perpendicular to the polar axis. Therefore, the shadow generated by the tubular bubble 910 is much smaller than that produced by the spherical or ellipsoidal bubble of the same pole pitch.
  • the projection lamp provided by the invention can be eliminated as long as it is offset from the focus position by a small distance. Shadow.
  • the shape of the electrode or the distance between the two electrodes may also vary depending on the actual situation.
  • the distance between the two electrodes can be appropriately increased to increase the uniformity of the beam, and the distance between the two electrodes can be appropriately shortened to reduce the volume of the bulb of the projection lamp. As long as shadows can be avoided on a plane perpendicular to the optical axis.
  • the distance between the bubble and the bottom of the curved mirror is shortened, that is, an ellipsoidal shape.
  • the bubble body 730 or the spherical bubble body 720 is offset from the focus position to the curved mirror, so that the light is collected slightly toward the middle portion, thereby effectively eliminating the shadow caused by the glass column.
  • this greatly increases the brightness of the center position of the beam, and the uniformity is lowered, so that it is difficult to be utilized in the subsequent optical path.
  • the distance between the electrodes in the cell pole pitch

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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Projection Apparatus (AREA)

Abstract

La présente invention décrit une ampoule de lampe pour projecteur utilisée pour le système de projecteur. Ladite ampoule de lampe pour projecteur comprend une ampoule, deux électrodes et deux tiges en verre raccordées à l'ampoule. Ladite ampoule se trouve dans la partie centrale. Les deux électrodes sont situées des deux côtés de l'ampoule, respectivement, et une extrémité de chacune des électrodes est positionnée à l'intérieur de l'ampoule et l'autre extrémité sort de l'ampoule puis au-delà des tiges en verre, l'ampoule étant de type en tube. L'ampoule de lampe pour projecteur dans la lampe pour projecteur selon la présente invention est couplée à un réflecteur non sphérique conformément à une installation transversale, qui peut améliorer le degré d'uniformité de la lumière, et diminuer le coût de fabrication et le coût de matériau des réflecteurs courbes, et prolonger la durée de vie des réflecteurs courbes.
PCT/CN2005/001388 2004-10-25 2005-09-02 Ampoule de lampe pour projecteur et lampe pour projecteur avec l'ampoule Ceased WO2006045232A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200410086555.9 2004-10-25
CNB2004100865559A CN1331003C (zh) 2004-10-25 2004-10-25 投影灯

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Publication Number Publication Date
WO2006045232A1 true WO2006045232A1 (fr) 2006-05-04

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Citations (7)

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CN86207023U (zh) * 1986-09-16 1987-12-09 国营曙光仪器厂 高亮度幻灯机
CN2066620U (zh) * 1990-03-29 1990-11-28 苏州电光源厂 高亮度管形镝灯
JPH07262966A (ja) * 1994-03-22 1995-10-13 Toshiba Lighting & Technol Corp 希ガス放電灯およびこれを用いた照明装置
CN1129491A (zh) * 1993-08-16 1996-08-21 电灯专利信托有限公司 用于摄影照明的金属卤化物放电灯
CN1170231A (zh) * 1996-05-14 1998-01-14 通用电气公司 改善了热平衡特性的氙金属卤化物灯
CN1358323A (zh) * 2000-01-14 2002-07-10 电灯专利信托有限公司 反射器－高压放电灯单元
CN1393905A (zh) * 2001-06-25 2003-01-29 杨炳霖 用于放电灯的发光装置

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US5414600A (en) * 1993-07-30 1995-05-09 Cogent Light Technologies, Inc. Condensing and collecting optical system using an ellipsoidal reflector
JPH07272617A (ja) * 1994-03-31 1995-10-20 Toshiba Lighting & Technol Corp ショートアーク放電灯、放電灯点灯装置および照明装置
US6429577B1 (en) * 1998-06-12 2002-08-06 Matsushita Electric Industrial Co., Ltd. Discharge lamp with outer tube comprising silicon dioxide and boron
JP3439435B2 (ja) * 2000-08-10 2003-08-25 エヌイーシーマイクロ波管株式会社 光源装置、照明装置および投写型表示装置
CN2713513Y (zh) * 2004-07-27 2005-07-27 罗筱泠 投影灯

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86207023U (zh) * 1986-09-16 1987-12-09 国营曙光仪器厂 高亮度幻灯机
CN2066620U (zh) * 1990-03-29 1990-11-28 苏州电光源厂 高亮度管形镝灯
CN1129491A (zh) * 1993-08-16 1996-08-21 电灯专利信托有限公司 用于摄影照明的金属卤化物放电灯
JPH07262966A (ja) * 1994-03-22 1995-10-13 Toshiba Lighting & Technol Corp 希ガス放電灯およびこれを用いた照明装置
CN1170231A (zh) * 1996-05-14 1998-01-14 通用电气公司 改善了热平衡特性的氙金属卤化物灯
CN1358323A (zh) * 2000-01-14 2002-07-10 电灯专利信托有限公司 反射器－高压放电灯单元
CN1393905A (zh) * 2001-06-25 2003-01-29 杨炳霖 用于放电灯的发光装置

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CN1588606A (zh) 2005-03-02

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