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11. 发明专利

JPH0765798A HALOGEN LAMP AND ITS MANUFACTURE 失效
公开(公告)号：JPH0765798A
公开(公告)日：1995-03-10
申请号：JP23224893
申请日：1993-08-26
申请人： USHIO ELECTRIC INC
发明人： SUGAWARA HIROSHI , AIURA YOSHITOKU , IGARASHI RYUSHI
IPC分类号： H01K1/24 , H01K1/32 , H01K3/00 , H01K7/02
摘要： PURPOSE:To obtain a halogen lamp whose luminous efficiency is improved collectively together with the effect of the bulb form, by regulating the bulb form and the filament lead length in a short form, so as to suppress the energy loss at the lead at the minimum value. CONSTITUTION:In a lamp 1, pressure seals 3 by the pinch sealing are formed at both ends of a spherical bulb 2 made of a quartz glass, and Mo metal foil conductors are sealed to the pressure seals 3. Leads 5 extended from a filament of a short W coil provided at the center position of the bulb are connected to the foils 4 making the axes of the bulb 2 and the coil coincident. And external lead-in wires 7 are connected to the foils 4. The distance between the filament coil and the bulb sealing parts is made in a specific short value. In the bulb 2, a minute amount of xenon gas and bromide with a specific pressure are sealed. On the outer surface of the bulb 2, TiO and SiO2 are laminated alternatively and an infrared-ray reflected visible ray transmitting film is sputtered. By such a constitution, a halogen lamp with improved luminous efficiency can be obtained.

12. 发明专利

JPH03226958A MANUFACTURE OF INCANDESCENT LAMP 失效
公开(公告)号：JPH03226958A
公开(公告)日：1991-10-07
申请号：JP1918590
申请日：1990-01-31
申请人： USHIO ELECTRIC INC
发明人： YAMAZAKI KENGO , SUGAWARA HIROSHI
IPC分类号： H01K3/20 , H01K1/32
摘要： PURPOSE:To prevent molybdenum foil from being oxidized at the formation of a light interference multilayered film and prevent a pinch seal portion from being cracked by including in the step of preparation for the process of burning of the light interference multilayered film the process of applying frit of low melting point to the end portion of an external lead bar projecting from the pinch seal portion. CONSTITUTION:In the step of preparation for the process of burning a light interference multilayered film, low melting-point frit whose melting point is 300 to 500 deg.C or so and whose coefficient of thermal expansion is close to that of molybdenum is formed into a paste containing binders and is applied to the end portion of an external lead bar 3 projecting from a pinch seal portion 11. Then the frit 5 is melted during the process of burning of the light interference multilayered film and is allowed to flow into a space 12 between the external lead bar 3 and quartz glass and is vitrified to block the space 12. Molybdenum foil 2 is thereby prevented from being exposed to oxygen in air so as to prevent oxidation of the light interference multilayered film during its burning process and also prevent cracking of the pinch seal portion 11.

13. 发明专利

JP2000340184A INCANDESCENT LAMP 失效
公开(公告)号：JP2000340184A
公开(公告)日：2000-12-08
申请号：JP14412399
申请日：1999-05-24
申请人： USHIO ELECTRIC INC
发明人： MIYAHARA KATSUHIKO , SUGAWARA HIROSHI , DAN MASAFUMI , ASAO MINORU , YAMAMIZU YUTAKA
IPC分类号： H01K1/14
摘要： PROBLEM TO BE SOLVED: To prevent a lamp file from being shortened due to hanging a coil with a simple construction and to provide an incandescent lamp having long life for use. SOLUTION: This incandescent lamp 10 has a filament 20 that is housed in a bulb 11 and held by supporters 30 and 30' as the filament 20 being positioned vertically. In this case, the filament 20 is composed of a double coil doubly wounding a primary coil formed by winding a wire. The upper part of the primary coil is wound more densely than lower part thereof in the filament 20.

14. 发明专利

JP2000340183A INCANDESCENT LAMP 失效
公开(公告)号：JP2000340183A
公开(公告)日：2000-12-08
申请号：JP14412299
申请日：1999-05-24
申请人： USHIO ELECTRIC INC
发明人： KAI KENZO , ASAO MINORU , MIYAHARA KATSUHIKO , SUGAWARA HIROSHI , SHIMAMOTO SADAAKI
IPC分类号： H01K1/14
摘要： PROBLEM TO BE SOLVED: To prevent a lamp from not being lit and its life from being shortened due to hanging a coil with a simple construction and to provide an incandescent lamp having long life for use. SOLUTION: In this incandescent lamp 10, a coil-like filament 20 is housed in a bulb 11 and the axis of a coil 21 of the filament 20 is held vertically by supporters 30 and 30'. In this case, the upper coil pitch of the coil 21 is narrower than the lower coil pitch in the filament 20. Alternatively, the filament 20 is a cone shaped or a truncated cone shaped coil 21 that is disposed in the bulb 11 with one end of a small diameter of the coil 21 upward.

15. 发明专利

JPH08115708A DOPED TUNGSTEN WIRE FOR ELECTRIC LAMP 失效
公开(公告)号：JPH08115708A
公开(公告)日：1996-05-07
申请号：JP25250494
申请日：1994-10-18
申请人： NIPPON TUNGSTEN , USHIO ELECTRIC INC
发明人： SENBA KENJI , YAMAMOTO HIROSHI , HARA KEIJI , FUJII KOJI , ITO HIROSHI , IGARASHI RYUSHI , IKEGAMI HIDEYUKI , SATO HIROTO , SUGAWARA HIROSHI
IPC分类号： H01K1/08
摘要： PURPOSE: To resist to deformation at high temperature and lengthen life by specifying a wire diameter to specified μm or less, the content of potassium to specified ppm, tensile strength at room temperature and tensile strength at high temperature at a specified temperature to specified N/mm or higher. CONSTITUTION: An electric lamp is constituted with a glass tube sealing body 1, a pinch seal part 2, a metal foil 3, outer and inner lead-in wires 4, 5, a glass piece 6 for fixing the wire 5, and a secondary coil part 7 obtained by forming a primary coil in a double coil. The wire diameter of a tungste wire in the coil part 7 is set to 250μm or less, the content of potassium to 85-110ppm, and tensile strength at room temperature to 2000-3000 N/mm . Tensile strength at high temperature at 2400 deg.C of the tungsten wire is set to 103N/mm or higher, and by using this wire, for example, a 110V, 85W single end type halogen lamp in the figure is produced. An incandescent lamp resistant to deformation at high temperature, having durability, and long life even if it is used in the single or double end halogen lamp can be manufactured.

16. 发明专利

JPH03230470A ELECTRIC BULB 失效
公开(公告)号：JPH03230470A
公开(公告)日：1991-10-14
申请号：JP2207690
申请日：1990-02-02
申请人： USHIO ELECTRIC INC
发明人： SAKURAI YOSHIO , SUGAWARA HIROSHI , YAMAZAKI KENGO
IPC分类号： H01K1/32
摘要： PURPOSE:To prevent the peeling of a multi-layer interference film when the number of laminated layers is increased by forming a required multi-layer interference film formed with a glass bulb on the surface on a specific undercoating film. CONSTITUTION:An undercoating film 30 mainly made of silicon dioxide is formed by dipping on the surface of a glass bulb 10, and a multi-layer interference film 20 constituted of a low-refraction factor layer 22 and a high-refraction factor layer 21 is laminated on the film 30. The adhesion of the film 20 is increased by the film 30, and an electric bulb is obtained in which the multi- layer interference film 20 is not peeled when the number of laminated layers is increased.

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