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    • 3. 发明授权
    • Method of electrically connecting a component to a PCB
    • 将部件电连接到PCB的方法
    • US6095823A
    • 2000-08-01
    • US160565
    • 1998-09-25
    • Anthony Paul Banks
    • Anthony Paul Banks
    • H01R13/24H05K1/14H05K1/18H05K3/32H01R12/00
    • H01R13/2421H05K3/325
    • A system for detachable mounting a component onto a printed circuit board comprises a printed circuit board having a through-hole, a compression spring constructed from, or coated with, an electrically conductive material, and a component having an electrical contact thereon. The compression spring having a first end of a diameter larger than the diameter of the through-hole, and a second end smaller than the diameter of the through-hole. The second end of the compression spring passes through the through-hole and is secured at its first end to the first side of the printed circuit board. The second end of the compression spring protrudes beyond the second side of the printed circuit board. When the component is placed against the second side of the printed circuit board, the compression spring is compressed and the desired electrical connection is formed.
    • 用于将部件可拆卸地安装到印刷电路板上的系统包括印刷电路板,其具有通孔,由导电材料构成或涂覆有导电材料的压缩弹簧,以及在其上具有电接触的部件。 压缩弹簧的直径大于通孔的直径的第一端,以及小于通孔的直径的第二端。 压缩弹簧的第二端穿过通孔并且在其第一端固定到印刷电路板的第一侧。 压缩弹簧的第二端突出超过印刷电路板的第二侧。 当部件被放置在靠近印刷电路板的第二侧时,压缩弹簧被压缩并形成所需的电连接。
    • 5. 发明授权
    • Photographic contrast masking with a photochromic body
    • 具有光致变色体的摄影对比掩蔽
    • US4758502A
    • 1988-07-19
    • US795348
    • 1985-10-29
    • Paul Banks
    • Paul Banks
    • G03C5/02G03C5/00
    • G03C5/02Y10S430/163
    • A contrast mask for a transparent photographic original may be formed by illuminating a photochromic body (11,41) through the original with white light. Preferably the photochromic body (11,41) is optically neutral (grey) and contains a silver halide as a photochromically active substance. Preferably the mask-forming exposure is performed separately from the photographic exposure of a recording medium through the original and the mask, by a different light source (27). The optical contrast range of the mask can be varied in response to the optical contrast range of the original by varying the amount of the mask-forming exposure. This variation is preferably effected by varying the number of flashes of the light source (27).The photochromic body is preferably incorporated in the holder (1,33) for the transparent original.Photographic reproduction apparatus may include an automatic densitometer, the output of which controls the amount of the mask-forming exposure.
    • PCT No.PCT / GB85 / 00079 Sec。 371日期1985年10月29日第 102(e)日期1985年10月29日PCT提交1985年2月28日PCT公布。 第WO85 / 04027号公报 1985年9月12日,通过用白光照射光致变色体(11,41),可以形成用于透明照相原稿的对比度掩模。 优选地,光致变色体(11,41)是光学中性的(灰色),并且含有卤化银作为光致变色活性物质。 优选地,通过不同的光源(27)通过原稿和掩模从记录介质的照相曝光分开进行掩模形成曝光。 掩模的光学对比度范围可以通过改变掩模形成曝光的量而响应于原稿的光学对比度范围而变化。 该变化优选通过改变光源(27)的闪光数来实现。 光致变色体优选并入用于透明原件的保持器(1,33)中。 照相再现装置可以包括自动密度计,其输出控制掩模形成曝光量。