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    • 62. 发明授权
    • Bar code reading apparatus
    • 条形码阅读器
    • US5077463A
    • 1991-12-31
    • US487326
    • 1990-03-02
    • Shinichi Sato
    • Shinichi Sato
    • G06K7/00G06K7/016G06K7/10G06K7/14
    • G06K7/1486G06K7/0166G06K7/14
    • A bar code reading apparatus includes a scanner, and a measuring circuit for measuring a width of each white bar contained in the bar code and a width of each black bar contained therein and for outputting a measurement signal indicative of the width of the each white or black bar. Further, the apparatus includes first, second and third detection circuits. The first detection circuit detects, from the measurement signal, a white bar having a width equal to or greater than a first reference value and outputs a first detection signal indicative of the width of the white bar. The second detection circuit detects, from the measurement signal, a white bar having a width equal to or greater than a second reference value and outputs a second detection signal indicative of the width of the white bar, the second reference being less than the first reference. The third detection circuit detects, from the measurement signal, a black bar having a width equal or greater than a third reference value and outputs a third detection signal indicative of the width of the black bar. A logic circuit receives the first, second and third detection signals and outputs a margin detection signal indicating detection of the margin area on the basis of the first, second and third detection signals.
    • 70. 发明授权
    • Spectacle lens
    • 眼镜镜片
    • US08425032B2
    • 2013-04-23
    • US12994797
    • 2009-05-21
    • Naoshi TakahashiTomomitsu OnizawaShinichi Sato
    • Naoshi TakahashiTomomitsu OnizawaShinichi Sato
    • G02C7/02
    • G02B1/041C08K5/0041C08K5/10C08K5/13C08K5/3475C08K5/51C08L69/00
    • This invention provides a spectacle lens excellent in hue, and provides a spectacle lens formed from a resin composition containing (1) 100 parts by weight of a polycarbonate resin, (2) 0.05 to 0.5 part by weight of a fatty acid ester mold release agent that is at least one member selected from the group consisting of (i) an ester of a monohydric alcohol having 1 to 20 carbon atoms and a saturated or unsaturated fatty acid having 10 to 30 carbon atoms and (ii) a full ester of glycerin and a saturated or unsaturated fatty acid having 10 to 30 carbon atoms, and that has a metal potassium content of 15 ppm or less and a metal sodium content of 30 ppm or less, (3) 0.1 to 0.25 part by weight of a benzotriazole ultraviolet absorbent, (4) 0.1 to 0.3 part by weight of a hindered phenol antioxidant, and (5) 0.005 to 0.1 part by weight of a phosphorus heat stabilizer, and a process for the production thereof.
    • 本发明提供了一种色调优异的眼镜镜片,提供了由含有(1)100重量份聚碳酸酯树脂的树脂组合物形成的眼镜片,(2)0.05〜0.5重量份的脂肪酸酯脱模剂 是选自(i)具有1至20个碳原子的一元醇的酯和具有10至30个碳原子的饱和或不饱和脂肪酸的酯中的至少一种,和(ii)甘油的全酯和 具有10〜30个碳原子的饱和或不饱和脂肪酸,并且金属钾含量为15ppm以下,金属钠含量为30ppm以下,(3)0.1〜0.25重量份的苯并三唑紫外线吸收剂 ,(4)0.1〜0.3重量份的受阻酚抗氧化剂,和(5)0.005〜0.1重量份的磷热稳定剂及其制造方法。