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    • 48. 发明专利
    • HALOGEN ELECTRIC BULB WITH RADIATION REFLECTING MIRROR
    • JPH09283098A
    • 1997-10-31
    • JP11823196
    • 1996-04-17
    • IWASAKI ELECTRIC CO LTD
    • OKAHARA KAZUAKIYANAGI SHIGEOKAWANABE YASUBUMI
    • F21V7/22H01K1/58H01K7/00
    • PROBLEM TO BE SOLVED: To provide a halogen electric bulb with radiation reflecting mirror of long life which sufficiently decreases a seal part temperature of the electric bulb in the case of use lighting it to stabilize its life, also makes a device of optical equipment formable in small size necessary for a cooling device of large capacity in cooling a seal part of the electric bulb, to form the electric bulb of high economical effect, further with damage or the like of the reflecting mirror eliminated. SOLUTION: In at least one end of a quartz glass bulb 1, through metal foil, a filament 2 and an external lead wire are integrally buried, a seal part is formed, a halogen electric bulb is formed by sealing at least halogen gas inside the bulb, formed of porcelain meterial, an opening part is formed in one end, the other end has a tubular groove fixedly burying the seal part of the halogen electric bulb, also a reflecting mirror 6 has an interference film formed by mutually laminating a dielectric substance of high/low refractive index in an internal surface of the concerned porcelain material, many irregular parts are formed in an external surface of the porcelain meterial as the reflecting mirror 6 to be constituted as a radiator.
    • 50. 发明专利
    • TUBULAR LAMP HAVING REFLECTING MIRROR
    • JPH08273636A
    • 1996-10-18
    • JP7544095
    • 1995-03-31
    • MATSUSHITA ELECTRONICS CORP
    • SUGIMOTO HIROSHI
    • F21V7/10H01K1/22H01K7/00
    • PURPOSE: To provide a tubular lamp having a reflecting mirror in which the reflecting mirror does not fall off from a base even if an adhesive to fix the reflecting mirror and the base is degraded by a change with the lapse of time. CONSTITUTION: In a tungsten halogen lamp 1, both ends of a filament 2 in a glass bulb are respectively connected to a base metal fitting 12 of a base 11 through a lead wire and introducing foil. A collapsing sealing part 4 is formed in an end part of the tungsten halogen lamp 1, and a projecting part 13 is formed on a side surface of this collapsing sealing part 4. A reflecting mirror 14 is composed of a reflecting surface part 15 having a reflecting surface and a barrel part 16 continuously arranged in this reflecting surface part 15. A light interferential film 19 is evaporated in the reflecting surface part 15, in the barrel part 16 of the reflecting mirror 14, a projecting part 17 is arranged on the periphery on its inside. In the reflecting mirror 14, its barrel part 16 is inserted into the base 11, and an adhersive 18 is injected into a clearance between this base 11 and the barrel part 16 of the reflecting mirror 14, and is fixed to the base 11.