公开(公告)号：JPS61168838A

公开(公告)日：1986-07-30

申请号：JP913085

申请日：1985-01-23

Applicant: TOSHIBA CORP

Inventor： DANNO YUJI ,  SAIDA ATSUSHI ,  FURUYA MAMORU ,  KAWASHIMA KOZO

IPC: H01J9/26 ,  H01J9/34

Abstract: PURPOSE:To simplify a manufacturing process for preventing a drop in luminous efficiency of a luminous tube by making the supporting member of a sealing heating device unrequired while specifically shaping the ceramic luminous tube. CONSTITUTION:An electrode 5A is sealed at the tube end 2a of a luminous tube 2 made of a light transmitting ceramics in an enclosed container 1 by inductively heating the area for sealing with a heating device 8 while using a blocking body 4A and a glass solder mold 7. Thereby, when the tube 2 is so shaped that the tube end part may have a smaller diameter than its central part while the device 8 may be placed on the inclined parts 2d on its both ends, the device 8 requires no extra supporting member so as to simplify a manufacturing process. Since further a sealed body inside the luminous tube is excluded from being evaporated and scattered outside the tube by being conductively heated by the supporting member thus preventing a drop in the luminous efficiency of the luminous tube.

公开(公告)号：JPS61110932A

公开(公告)日：1986-05-29

申请号：JP23121684

申请日：1984-11-05

Applicant: Toshiba Corp

Inventor： SUDO SHIGERU ,  SAIDA ATSUSHI

IPC: H01J9/26

CPC classification number: H01J9/266

Abstract: PURPOSE:To obtain the sealing part excellent in airtightness, a good lamp property and a long life property by performing the second process, where the side of one end sealing part of a luminous tube bulb is cooled and the other end opening part heat-sealed with a block body, while arranging a heat insulating body on the end part peripheral surface of the luminous tube bulb. CONSTITUTION:One end opening part of a luminous tube bulb 1 is firstly sealed airtightly with a block body 2A supporting an electrode 4A through glass solder while an enclosure 7 is thrown into from the other opening part for falling down on the inside end surface of the block body 2A while staying there. Next, the previously sealed one tube end side is clutched by a water-cooling aluminium chuck 11 for being cooled while a glass solder molded body 3A is heat-molten to permeat the peripheral surface of the block body 2B and the gap part of the inside surfaces of a throughhole 8 and the luminous tube bulb 1 for being solidified and secondary sealed. Since a heat insulating body 6B is provided on the end part peripheral surface of the luminous bulb 1, heating can be performed with no temperature difference tube lengthwise of the bulb end part as well as between the inside end surface 2Bb and the outside end surface of the block body 2B thus forming the airtight sealing part. Further, the second sealing can be performed while cooling thus causing no evaporation or scattering of the enclosure 7 and preventing the lowering of the lamp property.

Abstract translation: 目的：为了获得密闭部分，通过进行第二工序，在发光管灯泡的一个端部密封部分的侧面被冷却而另一个端部开口部分被热密封的气密性，良好的灯泡性能和长寿命特性 同时在发光管灯泡的端部圆周表面上布置隔热体。 构成：首先，将发光管灯泡1的一端开口部与通过玻璃焊料支撑电极4A的块体2A气密密封，同时将外壳7从另一个开口部分投入，以便落下于内侧端面 块体2A停留在那里。 接下来，将先前密封的一个管端侧用水冷铝卡盘11夹紧，将其冷却，同时将玻璃焊料成型体3A加热熔融，从而在块体2B的外周面和里面的间隙部分 通孔8和发光管灯泡1的表面用于固化和二次密封。 由于在发光管1的端部圆周表面上设置绝热体6B，所以可以在灯泡端部的长度方向上没有温差管以及内侧端面2Bb与外侧端面之间进行加热 从而形成气密密封部件。 此外，可以在冷却的同时执行第二密封，从而不会使外壳7发生蒸发或散射，并且防止灯的性能降低。

公开(公告)号：JPS6443999A

公开(公告)日：1989-02-16

申请号：JP19908187

申请日：1987-08-11

Applicant: TOSHIBA CORP

Inventor： YUASA KUNIO ,  HAYASHI NOBUHIKO ,  SAIDA ATSUSHI

IPC: H01J61/56 ,  H05B41/14 ,  H05B41/24

Abstract: PURPOSE:To prevent an irregular movement of the cathode spot and to eliminate an early burn-out or early blackening resulting form the irregular movement of the cathode spot by placing a bypass circuit including an impedance between lead wires or between the wires connected to the lead wires. CONSTITUTION:In a fluorescent lamp unit using a small size fluorescent lamp with a lamp current less than 100mA, a bypass circuit 6 including an impedance is inserted between a pair of lead wires 54 and 55 which are led from an electrode 56, or between wires connected to the lead wires 54 and 55. As a result, the heating at the electrode parts other than the cathode spot is suppressed, the spot position is stabilized, the cathode spot moves from one end to the other end of the filament electrode gradually in order with the passage of the lighting time, and consequently, the electrode never transfers to the unheating electron emission until the majority of the cathode substance is consumed, resulting in a long service life of the fluorescent lamp.

公开(公告)号：JPS63292558A

公开(公告)日：1988-11-29

申请号：JP12711187

申请日：1987-05-26

Applicant: TOSHIBA CORP

Inventor： SAIDA ATSUSHI ,  YUGE YOJI ,  YUASA KUNIO ,  HAYASHI NOBUHIKO

IPC: H01J61/067

Abstract: PURPOSE:To make it possible to gain stable discharge-characteristic not affected by the degree of a lamp current by forming a discharge electrode with a metal structure comprising plural holes opened in the direction of discharge and putting at least one of these plural holes in such a condition that an arc spot is generated easier than those for other holes. CONSTITUTION:A discharge electrode 13 in form of a metal structure 12 which is formed in such way that metal sleeves 7-11 made of nickel or the like are bundled, with their own outer walls stuck to each other, on lead wires 6 and 6 is attached to a stem 5. The metal sleeves 7-11 are arranged in parralel with the axis of a glass bulb 4 and at least one of the metal sleeves 7-11, such as, a metal sleeve 9 is formed in such a way that it is opened to the side of the discharge electrode facing the sleeve and arranged at the other end of glass bulb 4, that is, in the direction of discharge. Accordingly, when discharge is started, arc spots are easily generated in the metal sleeve 9, since the impedance of discharge thereof is small, even if a lamp current is small. Therefore, glow always enters the metal sleeve 9 when discharge is started and while the lamp is on, so that stable discharge is established.

公开(公告)号：JPS63146342A

公开(公告)日：1988-06-18

申请号：JP7044387

申请日：1987-03-26

Applicant: TOSHIBA CORP

Inventor： SAIDA ATSUSHI ,  HAYASHI NOBUHIKO ,  YAMAMOTO RIKIO ,  TSUNEKAWA SHINICHI ,  TAKAGI MASASANE

IPC: H01J61/30 ,  H01J61/32 ,  H01J61/33 ,  H01J61/35

Abstract: PURPOSE:To improve radiation efficiency by removing phosphor film's part not closely facing an irradiated surface so that apertures are formed and sticking a reflective film on a fixed inner peripheral surface of a bulb. CONSTITUTION:A positive column and a phosphor film 12e inside a bulb 12a are excited to become luminous. Almost all of these lights are radiated outside from the periphery of respective linear parts 12c and 12d. However, part of these lights are reflected and dispersed on respective reflective films 15a and 15b and then guided outside through respective apertures 14a and 14b and next directly radiated on the outside edge part of the irradiated surface 13. Lights radiated toward the reflective films 15a and 15b, and the lights, which are generated inside the bulb 12a and radiated toward the apertures 14a and 14b, are reflected and diffused there and added to the lights guided outside through the apertures 14a and 14b, so that light output power of them is enlarged. Therefore, illumination of the outside edge part of the irradiated surface 13 is upgraded by these lights which are enlarged in output power and guided through apertures.

公开(公告)号：JPS62177853A

公开(公告)日：1987-08-04

申请号：JP1782086

申请日：1986-01-31

Applicant: TOSHIBA CORP

Inventor： SAIDA ATSUSHI ,  SASAKI HIROMOTO ,  INOUE AKIHIRO ,  INUKAI SHINJI

IPC: H01J61/073

Abstract: PURPOSE:To cause no loss of transparency and generation of a crack in a luminous tube when lighting with power supply having no inversion of polarity such as a direct current by forming a cathode of a sealed axis and a discharge electrode and forming a coiled part on an end either of said sealed axis or the discharge axis to insert an end of the other into said coiled part for being engaged with it in order to be connected each other. CONSTITUTION:A cathode 3 is separated into a discharge axis 5 and a sealed axis 6 for being connected at a coiled part 7. Therefore, even when an arc is generated at the root part of the cathode at a starting time, both of mass and thermal capacity of the discharge axis 5 are small and moreover a calorie to be transmitted to the side of the sealed part 6 through the coiled part 7 becomes smaller because of the small contact surface of the coiled part 7 to the sealed part 6, thereby the temperature at the end part of the discharge axis 5 rises rapidly to the temperature at which an arc is easily generated. And with passing into a stable lighting state a metal inside a luminous tube 1 vaporizes so as to raise vapor pressure while the arc intends to shorten its distance as much as possible so as to finally turn to both electrodes 3 and 4. At a time of stable lighting the root part of the cathode 3 lacks in a spot for generating the arc thus obtaining a long life.

公开(公告)号：JPS54147677A

公开(公告)日：1979-11-19

申请号：JP5493178

申请日：1978-05-11

Applicant: Toshiba Corp

Inventor： YAMAMOTO FUMIO ,  HIRAO YOUSUKE ,  SAIDA ATSUSHI ,  OYAMADA MAKOTO

IPC: H01K1/32

Abstract: PURPOSE: In a double-tube type incandescent lamp, to elongate the use life of a fluorescent material film and provide efficient luminous characteristic by providing an infrared ray reflecting transparent film between the fluorescent material film formed on the inside wall of an outer tube and the filament of an inner tube.
CONSTITUTION: The inside wall of an outer tube 1 of an incandescent lamp is lined with a fluorescent material film 8 and an infrared ray reflecting transparent film 9. The film 9 may be formed by laying up a TiO
2 film, Ag film, and TiO
2 film. With the bulb fed with power through a base 7, a filament 2 luminesces visible rays. The infrared rays luminesced together with the visible rays are reflected by the film 9 to the interior of the bulb, and projected to the filament 2. But the infrared rays are not projected to the film 8 to heat it, so that the wall temperature of the outer tube 1 is low. Thus heat loss in the bulb is reduced, luminous efficiency is increased, and deterioration of the fluorescent material is prevented.
COPYRIGHT: (C)1979,JPO&Japio

Abstract translation: 目的：在双管式白炽灯中，为了延长荧光材料薄膜的使用寿命，通过在形成于外管内壁上的荧光材料薄膜和 内管细丝。 构成：白炽灯外管1的内壁衬有荧光材料膜8和红外线反射透明膜9.膜9可以通过铺设TiO 2膜，Ag膜和TiO 2膜形成 。 当灯泡通过基座7供电时，灯丝2发射可见光线。 与可见光一起发光的红外线被膜9反射到灯泡的内部，并且投射到灯丝2上。但是红外线没有投射到膜8以加热，所以壁温 外管1较低。 因此，灯泡中的热损失降低，发光效率提高，并且防止了荧光材料的劣化。

公开(公告)号：JPS61211953A

公开(公告)日：1986-09-20

申请号：JP5218185

申请日：1985-03-18

Applicant: TOSHIBA CORP

Inventor： DANNO YUJI ,  ITO AKIRA ,  SAIDA ATSUSHI ,  KAWASHIMA KOZO

IPC: H01J61/35

Abstract: PURPOSE:To sharply suppress a rise in lamp voltage and color temperature even when lighting for long hours by coating the bulb inner wall surface corresponding to the region between both discharge electrodes with a sodium- aluminium system oxide layer. CONSTITUTION:The inner wall surface of a translucent alumina ceramic bulb 1 forming a luminous tube is coated, for instance, with a sodium-aluminium system oxide layer 7 such as sodium aluminate or beta-alumina. Due to presence of the sodium-aluminium system oxide layer, the balanced pressure of sodium to sodium aluminate rises while wholly suppressing the chemical reaction of sodium to form sodium aluminate thus easily maintaining sodium vapor pressure inside the luminous tube bulb in a state as prescribed. Thereby, a property change of a high pressure sodium lamp is sharply reduced even when lighting for long hours thus to maintain and exhibit a required light source function for a term of life.

公开(公告)号：JPH01281658A

公开(公告)日：1989-11-13

申请号：JP1970989

申请日：1989-01-31

Applicant: TOSHIBA CORP

Inventor： DANNO YUJI ,  SAIDA ATSUSHI ,  FURUYA MAMORU ,  KAWASHIMA KOZO

IPC: H01J61/36

Abstract: PURPOSE:To improve the reliability of a sealing section by forming a closing body for sealing an open end of a luminous tube bulb with flat and projecting portions and providing the outer surface of the flat portion with a guide groove for a molten sealing material molten at the time of sealing process to flow through. CONSTITUTION:An open end of a luminous tube bulb 1 made of a light transmitting ceramic is sealed with a sealing material 3. A closing body 2 consists of a projecting portion 2b to be fit into the luminous tube bulb 1 and a flat portion 2a forming a flange 2c on one side of the projecting portion 2b. The outer surface of the flat portion 2b is provided with a guide groove 6 for flowing a molten sealing material 3 from a through hole 5 drilled in the closing body 2 to the flange 2c for holding an electrode supporting body 4. As the molten sealing material 3 flows through the guide groove 6 and enters the through hole 5 and a gap between the closing body 2 and the luminous tube bulb 1, cools and solidifies, a hermetic sealing section is obtained. This makes it possible to obtain a sealing section of a high reliability.

公开(公告)号：JPH01140549A

公开(公告)日：1989-06-01

申请号：JP29734787

申请日：1987-11-27

Applicant: TOSHIBA CORP

Inventor： YOSHIKAWA KAZUHIKO ,  SAIDA ATSUSHI ,  ISHIGAMI TOSHIHIKO

IPC: H01J61/36

Abstract: PURPOSE:To make it unnecessary to use glass solder, to increase the adhesive strength, and to reduce the unevenness of starting owing to a short circuit and an interval variation between electrode tips, by burying and fixing a main and an auxiliary electrodes to a conductive cermet layer at their base sides. CONSTITUTION:The opening end of an alumina ceramics luminous tube 1 is sealed up airtight by a blocking body 3 through a glass solder 2 mainly of Al2O3, SiO2, Sm2O3, and the like. The first hole 7 of the blocking body 3 penetrates from a conductive cermet 5, through an insulating ceramics 6 and a conductive cermet 4, and is opened in the luminous tube 1. The second hole 8 is opened at the outside, penetrates the layers 5 and 6, and reaches the layer 4. One end of a main electrode 9 is buried and fixed to the layer 4, while an external leading body 10 is buried and fixed to the layer 4 through the hole 8 at their ends. In such a composition, the main and the auxiliary electrodes need not use a glass solder to seal to the blocking body, the deterioration of property or a leakage owing to the reaction of the solder and the enclosure can be prevented, and the interval variation between the main and the auxiliary electrodes is reduced to obtain a stable starting performance.