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    • 11. 发明授权
    • Solar-cell watch dial and process for producing the same
    • 太阳能手表表盘及其制作方法
    • US6021099A
    • 2000-02-01
    • US817747
    • 1997-04-18
    • Akio AokiToshio MurataAkira AzumaIkuo KobayashiTakao Saito
    • Akio AokiToshio MurataAkira AzumaIkuo KobayashiTakao Saito
    • G04B19/12G04B19/14G04C10/02G04B1/00
    • G04B19/14G04B19/12G04C10/02
    • A solar-cell watch dial to be disposed on or above a solar cell housed in a watch, the solar-cell watch dial comprising an alumina of the formula Al.sub.2 O.sub.3 whose purity is at least 99.90% and exhibiting a light transmission ranging from 40 to 60%. The invention also includes a process for producing a solar-cell watch dial, which comprises the steps of: mixing together an alumina of the formula Al.sub.2 O.sub.3 whose purity is at least 99.90%, an organic binder and water to thereby obtain an Al.sub.2 O.sub.3 mixture (A); drying and granulating the Al.sub.2 O.sub.3 mixture to thereby obtain a granular material (B); molding the granular material into a plate dial precursor (C); firing the dial precursor at 700 to 1500.degree. C. in atmospheric environment to thereby obtain a preliminary firing product (D); and firing the preliminary firing product at 1500 to 1800.degree. C. under a pressure of 1.times.10.sup.-2 to 1.times.10.sup.-5 torr for 1 to 10 hr to thereby obtain a solar-cell watch dial (E).The solar-cell watch dial of the present invention enables preventing the solar cell from being sighted from outside without hindering the supply of light energy to the solar cell.
    • PCT No.PCT / JP95 / 02158 Sec。 371日期1997年4月18日 102(e)日期1997年4月18日PCT提交1995年10月20日PCT公布。 公开号WO96 / 12989 日期:1996年5月2日太阳能电池表盘配置在手表上的太阳能电池上或太阳能电池上方,太阳能电池表盘包括纯度至少为99.90%的Al2O3氧化铝,表现出透光范围 从40%到60%。 本发明还包括一种生产太阳能电池表盘的方法,其包括以下步骤:将纯度为至少99.90%的式Al2O3的氧化铝,有机粘合剂和水混合在一起,从而获得Al 2 O 3混合物(A ); 干燥并造粒Al 2 O 3混合物,从而获得颗粒状材料(B); 将颗粒状材料成型为板式表盘前体(C); 在大气环境中在700〜1500℃下烧制表盘前体,得到预焙烧产物(D); 在1500〜1800℃,1×10 -2〜1×10 -5乇的压力下烧成1〜10小时,得到太阳能电池表盘(E)。 本发明的太阳能电池表盘能够防止太阳能电池从外部看到,而不会阻碍向太阳能电池供应光能。
    • 13. 发明授权
    • Solar battery powered watch
    • 太阳能电池供电手表
    • US5761158A
    • 1998-06-02
    • US793936
    • 1997-03-07
    • Akira AzumaHisato HiraishiTakashi Toida
    • Akira AzumaHisato HiraishiTakashi Toida
    • G04B19/06G04B19/12G04B19/14G04C10/02G04C10/00H01N6/36
    • G04B19/065G04B19/12G04B19/14G04C10/02
    • A covering member (4), a solar battery (3) and a hand-operating mechanism-containing movement (2) are housed inside a case (1) which has a front side opening (1a), a glass (5) which is provided in the front side opening (1a), in the order of these constituents from the face side of the case (1). The solar battery (3) is disposed opposite to the glass (5) at a light receiving surface thereof which is covered with the covering member (4). The covering member (4) can also serve as a dial. If the covering member (4) is molded out of ceramic, it can provide the dial with a white appearance, so that light can sufficiently be transmitted to the receiving surface of the solar battery (3) owing to the light transmittance of the ceramic.
    • PCT No.PCT / JP95 / 01791 Sec。 371日期1997年3月7日 102(e)1997年3月7日PCT PCT 1995年9月8日PCT公布。 公开号WO96 / 07956 日期:1996年3月14日在具有前侧开口(1a),玻璃(1a)的壳体(1)的内部容纳有覆盖部件(4),太阳能电池(3)和手动操作机构的移动体(2) (5),其设置在前侧开口(1a)中,从壳体(1)的表面侧开始按照这些构成的顺序。 太阳能电池(3)在其被覆盖部件(4)覆盖的受光面与玻璃(5)相对配置。 覆盖构件(4)也可以用作表盘。 如果覆盖构件(4)由陶瓷成型,则其可以为表盘提供白色外观,使得由于陶瓷的透光率,光可以充分地传递到太阳能电池(3)的接收表面。