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公开(公告)号:US3484637A
公开(公告)日:1969-12-16
申请号:US3484637D
申请日:1968-02-26
申请人: PHILIPS CORP
CPC分类号: H01J61/34
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2.
公开(公告)号:US3666534A
公开(公告)日:1972-05-30
申请号:US3666534D
申请日:1970-04-13
申请人: PHILIPS CORP
CPC分类号: C03C17/25 , C03C2217/215 , C03C2217/24 , C03C2218/112
摘要: THE INVENTION RELATES TO THE MANUFACTURE OF A GLASS ENVELOPE FOR A SODIUM VAPOUR DISCHARGE LAMP WHICH ENVELOPE IS PROVIDED WITH A FILM OF DOPED INDIUM OXIDE. TO OBTAIN AN ENVELOPE HAVING BOTH FEW INTERNAL MECHANICAL TENSIONS AND A GREAT HEAT REFLECTIVITY, THE ENVELOPE IS HEATED FOR 5 TO 15 MINUTES AT A GIVEN TEMPERATURE AFTER IT HAS BEEN PROVIDED WITH THE INDIUM OXIDE FILM, DURING WHICH HEAT TREATMENT THE INDIUM OXIDE FILM IS CONTACTED WITH A GAS MIXTURE COMPRISING A VERY SMALL PERCENTAGE OF OXYGEN.
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公开(公告)号:US2809366A
公开(公告)日:1957-10-08
申请号:US44153854
申请日:1954-07-06
申请人: PHILIPS CORP
IPC分类号: H05B41/00
CPC分类号: H05B41/00
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公开(公告)号:US3113194A
公开(公告)日:1963-12-03
申请号:US83127859
申请日:1959-08-03
申请人: PHILIPS CORP
IPC分类号: H05B41/06
CPC分类号: H05B41/06
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公开(公告)号:US3105889A
公开(公告)日:1963-10-01
申请号:US74447658
申请日:1958-06-25
申请人: PHILIPS CORP
IPC分类号: H05B41/06
CPC分类号: H05B41/06
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