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    • 5. 发明申请
    • Optical recording/reproducing apparatus, optical pickup, and tracking error detecting method
    • 光记录/再现装置,光学拾取器和跟踪误差检测方法
    • US20070171778A1
    • 2007-07-26
    • US11649843
    • 2007-01-05
    • Kimihiro SaitoKatsuji TakagiTsutomu Ishimoto
    • Kimihiro SaitoKatsuji TakagiTsutomu Ishimoto
    • G11B7/00
    • G11B7/1353G11B7/0901G11B7/0908G11B7/094G11B7/0943G11B7/0953G11B7/0956G11B7/131G11B7/1356G11B7/1387G11B11/10543G11B11/10576
    • An optical recording/reproducing apparatus includes an optical pickup and a control section. The optical pickup includes: a detecting section; an optical system that radiates light from a light source onto an optical recording medium as near-field light by a condenser lens having a numerical aperture of 1 or more, and introduces light reflected by the optical recording medium toward the detecting section; and a drive section that drives the condenser lens. The optical recording/reproducing apparatus performs control for recording and/or reproducing onto/from the optical recording medium based on an optical output detected by the detecting section of the optical pickup. The optical system includes a beam splitter that reflects both P-and S-polarized components of reflected light from the optical recording medium, and a separating section that separates the P-and S-polarized components reflected by the beam splitter. The detecting section individually detects the P-and S-polarized components separated by the separating section.
    • 光学记录/再现装置包括光学拾取器和控制部分。 光学拾取器包括:检测部分; 光学系统,其通过数值孔径为1以上的聚光透镜将光从光源照射到光记录介质上作为近场光,并将由光记录介质反射的光引入检测部; 以及驱动聚光透镜的驱动部。 光学记录/再现装置基于由光学拾取器的检测部分检测到的光输出,对从光记录介质进行记录和/或再现的控制。 光学系统包括分束器,其反射来自光学记录介质的反射光的P偏振分量和S偏振分量,以及分离部分,其分离由分束器反射的P偏振分量和S偏振分量。 检测部分分别检测由分离部分分离的P偏振分量和S偏振分量。
    • 7. 发明授权
    • Coupling structure of watchcase
    • 表壳联轴器结构
    • US3948038A
    • 1976-04-06
    • US557013
    • 1975-03-10
    • Katsuji Takagi
    • Katsuji Takagi
    • G04B37/00G04B37/08
    • G04B37/00G04B37/08
    • A watchcase coupling structure including an outer rim and coupling pins adapted to couple a front cap and a rear cap, wherein the coupling pins may be mounted in the outer rim and the rear cap without relying upon a threading-in method. Each of these coupling pins may take various configurations. Specifically, it may be the one which has an eccentricity by an amount corresponding to a margin required to adjust the force with which the packing interposed between the front cap and the rear cap is clamped or the one which is provided on its head with a slant portion to facilitate the operation of mounting. Furthermore, it may be the one which is provided on the front end with a notch or the like or the one which has a flange to prevent the pin from falling off. To employ the pin having the flange, the outer rim is provided with a keyhole-shaped notch and the circular head of the pin is symmetrically cut away to present a pair of parallel surfaces so that the pin head may be soothly guided along said keyhole-shaped notch.
    • 一种表壳联接结构,其包括适于联接前盖和后盖的外缘和联接销,其中所述联接销可以安装在所述外边缘和所述后盖中,而不依赖于穿线方式。 这些连接销中的每一个可以采取各种配置。 具体地说,它可以是具有偏心量,该偏心量对应于调节插入在前盖和后盖之间的密封件被夹紧的力所需的余量,或者在其头部上设置倾斜的力 部分便于安装操作。 此外,也可以是在前端设置有切口等,也可以是具有用于防止销脱落的凸缘的凸缘。 为了使用具有凸缘的销,外边缘设置有锁眼形凹口,并且销的圆形头被对称地切除以呈现一对平行表面,使得销头可以沿着所述钥匙孔顺畅地被引导, 形槽。