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1. 发明专利

JPH03216946A HALOGEN LAMP 失效
公开(公告)号：JPH03216946A
公开(公告)日：1991-09-24
申请号：JP1061490
申请日：1990-01-22
申请人： HITACHI LTD
发明人： MIYASHITA HISASHI , KODAMA MASAYOSHI , TAKANO YOSHIO , SUNAI YUKIO , HATAKEYAMA ATSUSHI
IPC分类号： H01K1/18
摘要： PURPOSE:To prevent the occurrence and continuation of an arc and prevent the breakage of a lamp by bending a pair of inner lead wires to be connected to a filament in opposite directions to each other near a bead, again bending the lead wires in opposite directions, and connecting them to the filament. CONSTITUTION:Inner lead wires 2, 2' are spread and fixed to the whole width of a bead 7, their tips are further spread from the fixed portion, and they are bent in opposite directions at the connection section while the interval between both lead wires 2, 2' is maintained. Tip sections of the inner lead wires 2, 2' are formed into a coil shape, a filament 1 is inserted into it and caulked. The inner lead wire 2' and a coil-shaped tip cut end are faced to the opposite direction to the inner lead wire 2. An anchor 9 is buried near the center section of the bead 7, its tip is bent upward from the paper surface, it is again bent in the opposite direction, then it is fixed to the filament 1. The occurrence and continuation of an arc at the time of an open circuit of a halogen lamp are prevented, and the breakage of the lamp can be prevented.

2. 发明专利

JPH01169865A DISCHARGE LAMP 失效
公开(公告)号：JPH01169865A
公开(公告)日：1989-07-05
申请号：JP32713887
申请日：1987-12-25
申请人： HITACHI LTD
发明人： MATSUNO HIROMITSU , MURAYAMA SEIICHI , KODAMA MASAYOSHI
IPC分类号： H05B3/10 , H01J61/35 , H05B3/44
摘要： PURPOSE:To obtain a discharge lamp with a relatively small far infrared ray output per unit area by coating a far infrared ray emitting material on the surface of the low-pressure discharge lamp. CONSTITUTION:A far infrared ray emitting material 3 is coated on the outer face of a low-pressure mercury-rare gas discharge lamp with nearly the same size as a commercial fluorescent lamp. When this discharge lamp is lighted, almost all the electric energy injected into the discharge lamp is converted into the thermal energy by the far infrared ray emitting material 3 coated on the tube wall of a discharge container 1 or the outside tube wall of the discharge container 1. This thermal energy is radiated by the far infrared ray emitting material 3 as far infrared rays. The far infrared ray output per unit surface area can be thereby decreased.

3. 发明专利

JPH01128349A LIGHT-EMITTING DEVICE 失效
公开(公告)号：JPH01128349A
公开(公告)日：1989-05-22
申请号：JP28531487
申请日：1987-11-13
申请人： HITACHI LTD
发明人： MATSUNO HIROMITSU , MURAYAMA SEIICHI , KODAMA MASAYOSHI
IPC分类号： A61L2/10 , H01J61/56 , H01J61/64 , H01J61/96
摘要： PURPOSE:To obtain a compact light-emitting device emitting both ultraviolet and far infrared efficiently at the same time by constituting both an ultraviolet emitting device and a far infrared emitting device integrally and operating both the devices with a same power supply. CONSTITUTION:Impressing 100 AC voltage on a light-emitting device through its base 6, hot cathodes 3, 3' are heated by means of a starter 7 to cause discharge between 3 and 3'. Making the distance between the hot cathodes 3 and 3' below 10mm generates negative glow from which ultraviolet of mercury resonance line 254nm is emitted and radiates outside through a discharge valve 1. On the other hand, since discharge current of about 0.3A flows through a resistor 9, the resistor 9 becomes high temperature and thereby far infrared emitting material 5 coated on a case 4 is heated to cause far infrared radiation. Since the generation of far infrared radiation utilizes a stater which is nothing but only heat loss in conventional devices, the efficiency of the device as a whole can be enhanced.

4. 发明专利

JPS6465765A LIFE DISPLAY LAMP 失效
公开(公告)号：JPS6465765A
公开(公告)日：1989-03-13
申请号：JP22014787
申请日：1987-09-04
申请人： HITACHI LTD
发明人： KOBAYASHI YASUO , HIROTA TAISUKE , KODAMA MASAYOSHI , HAGIWARA MAKI
IPC分类号： H01J61/35
摘要： PURPOSE:To indicate the residual life of a discharge lamp by furnishing a substance to assume coloring or color change in accordance with the cumulative amount of radiated ultraviolet rays at the surface of a non-metal base of a mercury vapor discharge lamp. CONSTITUTION:A coloring film 3 made of a substance to assume coloring or color change is attached to the surface of a lamp base 1 made of resin. At the surface of the base 1, the intensity of radiated ultraviolet rays is smaller than that at the surface of a glass tube 1, and the time till attainment of color change saturation of a coloring film 3 becomes longer. This determines the installing position of the light emitting film in which color change is completed after passage of a time corresponding to the life of the lamp.

5. 发明专利

JPS63202839A BACTERICIDAL LAMP DEVICE 失效
公开(公告)号：JPS63202839A
公开(公告)日：1988-08-22
申请号：JP3326887
申请日：1987-02-18
申请人： HITACHI LTD
发明人： MATSUNO HIROMITSU , MURAYAMA SEIICHI , KODAMA MASAYOSHI
IPC分类号： H01J61/30
摘要： PURPOSE:To make a bactericidal lamp device with multiple bactericidal lamps small-sized by connecting multiple bactericidal lamps with the relatively low lamp voltage in series and lighting them with one ballast. CONSTITUTION:Since multiple bactericidal lamps 1, 1 are lighted by one ballast 3, the ballast is made small-sized and lightweight as a whole. If the distance between electrodes 11, 12 of the bactericidal lamp 1 is made 14mm for He as the main gas, 15mm for Ne, 13mm for Ar, 17mm for Kr, and 18mm or less for Xe, the anode voltage drop becomes zero, and the low lamp voltage and the high efficiency can be attained. Such a bactericidal lamp has the low lamp voltage and discharge start voltage, thus multiple bactericidal lamps can be connected and lighted in series. Accordingly, a bactericidal lamp device with multiple bactericidal lamps can be made small-sized.

6. 发明专利

JPS63202836A LOW-PRESSURE DISCHARGE LAMP DEVICE 失效
公开(公告)号：JPS63202836A
公开(公告)日：1988-08-22
申请号：JP3326787
申请日：1987-02-18
申请人： HITACHI LTD
发明人： MATSUNO HIROMITSU , MURAYAMA SEIICHI , KODAMA MASAYOSHI
IPC分类号： H01J61/067 , H01J61/56
摘要： PURPOSE:To obtain a high-efficiency, low-pressure discharge lamp device which is small-sized and lightweight by combining a low-pressure discharge lamp limiting the distance between end sections of one electrode and a capacitor as a ballast. CONSTITUTION:The distance between end sections 1, 2 is limited so that one end section 2 of one electrode exists in a negative glow 3 when the other end section 1 acts as a cathode. Thereby, there is no anode voltage drop, and the arc re-striking voltage and the discharge voltage are reduced. Even if a capacitor 23 is used as a ballast in such a low-pressure discharge lamp, a sine wave current flows, no flicker of light occurs, and the loss by the capacitor is reduced. Accordingly, a high-efficiency, low-pressure discharge lamp device which is small-sized and lightweight can be obtained.

7. 发明专利

JPS53124067A PELLET BONDING METHOD 失效
公开(公告)号：JPS53124067A
公开(公告)日：1978-10-30
申请号：JP12952376
申请日：1976-10-29
申请人： HITACHI LTD , HITACHI ELECTR ENG
发明人： TANIMOTO MICHIO , KODAMA MASAYOSHI
IPC分类号： H01L21/52 , H01L21/58
摘要： PURPOSE:To secure an assured junction by using the eutectic alloy layer of the pellet and the attaching plate as the junction layer and then giving a rolling or pitching to the pellet.

8. 发明专利

JPH03105849A LAMP 失效
公开(公告)号：JPH03105849A
公开(公告)日：1991-05-02
申请号：JP24199389
申请日：1989-09-20
申请人： HITACHI LTD
发明人： MIYASHITA HISASHI , KODAMA MASAYOSHI , HATAKEYAMA ATSUSHI
IPC分类号： H01J61/40 , H01K1/32
摘要： PURPOSE:To provide a lamp whose color is changeable in an efficient simple manner by changing the film thickness of a part of a dielectric multi-layer provided on the bulb surface of the lamp from the other portions, and thereby providing a visible region with a reflection range with the narrow width of wave length. CONSTITUTION:A lamp is equipped with a filament 1, inner lead wires 2 and 2', molybdenum foils 3 and 3', outer lead wires 4 and 4', a base 5, a quartz bulb 6 and with a bead 7, and a dielectric multi-layer film composed of titanium oxide 8 and of silicon oxide 9 is sintered on the outer surface of the quartz bulb 6. Namely, the surface of a glass bulb is provided with a multi-layer film composed of a transparent body having a refraction factor of light and a low refraction factor so that infra-red rays from the lamp are thereby reflected, and valleys with a refraction factor of 10 to 40% are provided for a visible region. By this constitution, the color of a light source can thereby be changed without increasing the number of the layers for the dielectric multi-layer film to be sintered on the quartz bulb surface for a halogen bulb or a HID lamp, an reduction in efficiency can thereby be concurrently minimized.

9. 发明专利

JPH02230657A LOW PRESSURE DISCHARGE LAMP DEVICE 失效
公开(公告)号：JPH02230657A
公开(公告)日：1990-09-13
申请号：JP4981089
申请日：1989-03-03
申请人： HITACHI LTD
发明人： MATSUNO HIROMITSU , MURAYAMA SEIICHI , URATAKI ETSUO , KODAMA MASAYOSHI
IPC分类号： H01J61/72
摘要： PURPOSE:To obtain a portable cordless discharge lamp device that is good for dirt detection, mark detection, health achievement, sterilization and for smell elimination by forming a low voltage discharge lamp device out of a low voltage discharge lamp generating light of a predetermined range of wavelength, and of a low discharge burning circuit whose power source is a battery. CONSTITUTION:In a soft glass tube 10 of diameter 15mm, length 50mm, a hot cathode 12 composed of a tungsten coil to which applied an electron emission material whose primary component is (Ba, Sr, Ca)O, and an anode 13 arranged in the vicinity of this, are provided. For discharge gas, 5Torr of argon and mercury are sealed in, and to the inner surface of the glass tube 10, a fluorescent material BaSi2O5:Pb by which mercury spectrum of 254nm generated by the discharge is converted into the light of 200-400nm, is applied. When the interval between the cathode 12 and the anode 13 is defined as small as possible, and the anode 13 is designed to enter negative glow, discharge voltage is drastically reduced, whereby low voltage discharge is possible without heating the cathode 12 from the outside, and the efficiency is improved. A battery case 6 is provided in a reflecting mirror 3 in a discharge lamp case 4.

10. 发明专利

JPH01231258A SMALL-SIZED DISCHARGE LAMP 失效
公开(公告)号：JPH01231258A
公开(公告)日：1989-09-14
申请号：JP5605688
申请日：1988-03-11
申请人： HITACHI LTD
发明人： URATAKI ETSUO , KODAMA MASAYOSHI , MATSUNO HIROMITSU
IPC分类号： H01J61/64
摘要： PURPOSE:To reduce blackening up to the end of a life and to enable a glass tube diameter to be minimized by maintaining the relation between the glass tube diameter and lamp electric power under the specific condition. CONSTITUTION:A small-sized discharge lamp consists of a luminous glass tube 6 having a cathode 2, an anode 3 and containing inside mercury 4, rare gas and a starting device 7, while being supplemented by ballast 8 for current control such as a capacitor and a lighting circuit of a rectifier 9. Here, provided that an outer diameter of the luminous glass tube 6 is D(mm), the whole length is L(mm) and electric power to be consumed inside the luminous glass tube, that is lamp electric power is WL(W), it is so made that the relation 3WL

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