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    • 62. 发明授权
    • Method of fabricating heat mirror for incandescent lamp envelope
    • 制造白炽灯罩热镜的方法
    • US4293593A
    • 1981-10-06
    • US84217
    • 1979-10-12
    • Bulent E. Yoldas
    • Bulent E. Yoldas
    • H01K1/32C03C17/25C03C17/36C07F7/00C07F7/04C07F9/00H01K1/34H01K3/00G02B1/10
    • C03C17/3605C03C1/008C03C17/25C03C17/36C03C17/3613C03C17/3644C03C17/3663C07F7/003C07F7/045C07F9/005H01K3/005C03C2218/113
    • Energy-conserving incandescent lamp wherein the envelope has provided on the interior surface thereof a very efficient and economically applied heat mirror which is highly transmissive for visible radiations and highly reflective for infrared radiations, thereby to enhance the conversion of electric energy to visible energy. The heat-mirror coating comprises a two layer Ag/TiO.sub.2 or a three layer TiO.sub.2 /Ag/TiO.sub.2 coating of predetermined thickness. The three layer coating is formed by first applying to the envelope interior surface a thin layer of clear aliphatic alcohol solution having contained therein partially hydrolyzed metallic alkoxide which substantially comprises titanium alkoxide, and which solution contains at most only a limited amount of selected mineral acid. The applied clear solution layer is heat treated to convert same to a thin continuous layer substantially comprising titania. A thin silver layer is applied over the first applied titania coating, preferably by vacuum metallizing, and a second thin layer of solution containing the partially hydrolyzed metallic alkoxide which substantially comprises titanium alkoxide is applied over the silver layer. Thereafter the applied second layer is heat treated to convert same to titania, with the heat treating temperatures and atmospheres controlled so as not to affect the applied silver layer. The two layer coating is applied by omitting the first TiO.sub.2 coating step.
    • 节能白炽灯,其中外壳在其内表面上设置了一种非常有效且经济上应用的热反射镜,其对于可见光辐射是高度透射的并且对于红外辐射具有高反射性,从而增强电能转换成可见光能量。 热镜涂层包括预定厚度的两层Ag / TiO 2或三层TiO 2 / Ag / TiO 2涂层。 通过首先向包封内表面施加薄层的透明脂族醇溶液,其中含有基本上包含钛醇盐的部分水解的金属醇盐,并且该溶液至多仅含有限量的选择的无机酸形成三层涂层。 将所施加的透明溶液层进行热处理以将其转化为基本上包含二氧化钛的薄连续层。 优选通过真空金属化将薄银层涂覆在第一涂覆的二氧化钛涂层上,并且将含有基本上包含钛醇盐的部分水解的金属醇盐的第二薄层溶液涂覆在银层上。 此后,将所施加的第二层热处理以将其转化为二氧化钛,其中热处理温度和气氛被控制为不影响施加的银层。 通过省略第一TiO 2涂覆步骤来施加双层涂层。