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    • 4. 发明授权
    • Erecting equal-magnification lens array plate, optical scanning unit, and image reading device
    • 架设等倍透镜阵列板,光学扫描单元和图像读取装置
    • US08681397B2
    • 2014-03-25
    • US13571031
    • 2012-08-09
    • Satoru KusakaHiroyuki Nemoto
    • Satoru KusakaHiroyuki Nemoto
    • H04N1/04
    • G02B13/26G02B3/0062
    • An erecting equal-magnification lens array plate includes: first and second lens array plates; first, second and intermediate light shielding member. The first, second and intermediate light shielding member are halved by a splitting plane parallel with the main scanning direction. One of the first light shielding member pieces, one of the second light shielding member pieces, and one of the intermediate light shielding member pieces produced by halving the members are integrated to form a first holder piece. The other of the first light shielding member pieces, the other of the second light shielding member pieces, and the other of the intermediate light shielding member pieces produced by halving the members are integrated to form a second holder piece. The erecting equal-magnification lens array plate is assembled by sandwiching the first lens array plate and the second lens array plate by the first holder piece and the second holder piece.
    • 直立式等倍透镜阵列板包括:第一和第二透镜阵列板; 第一,第二和中间遮光构件。 通过与主扫描方向平行的分割平面使第一,第二和中间遮光部件减半。 第一遮光构件中的一个,第二遮光构件片中的一个和通过将构件减半制成的一个中间遮光构件片被一体化以形成第一保持件。 第一遮光构件片中的另一个,第二遮光构件片中的另一个以及通过将构件减半制成的另一个中间遮光构件片整合形成第二保持件。 通过用第一保持件和第二保持件夹住第一透镜阵列板和第二透镜阵列板来组装竖立等倍透镜阵列板。
    • 5. 发明授权
    • Head drum assembly with electrical noise shield
    • 头鼓组件带有电气噪声屏蔽
    • US4031558A
    • 1977-06-21
    • US603538
    • 1975-08-11
    • Satoru Kusaka
    • Satoru Kusaka
    • H05K9/00G11B5/02G11B5/52G11B15/61G11B23/00H01F38/14H02K11/02G11B15/60G11B21/04
    • G11B5/52G11B15/61G11B23/0007H02K11/022
    • In a head drum assembly for a video tape recording and/or reproducing apparatus provided with stationary and rotary drum members for guiding a magnetic tape at their peripheries while video signals are recorded on, or reproduced from the tape by means of a magnetic head or heads carried by the rotary drum member and extending into a gap defined between the peripheral surfaces of the drum members; the rotary drum member, and hence the head or heads carried thereby, is driven by a D.C. motor disposed coaxially in respect to the drum members and having its shaft directly coupled to the rotary drum member, the signals being recorded or reproduced are transmitted by a signal transformer including nested annular stationary and rotary cores fixed to, and coaxial with the stationary and rotary drum members, respectively, and carrying confronting stationary and rotary windings which are respectively connected to signal leads extending from the stationary drum member and to the head or heads, and such signal transformer is shielded in respect to electrostatic and electromagnetic noise generated by the adjacent D.C. motor. The shielding for the signal transformer desirably includes a conductive metallic shield, for example, of a material of high magnetic permeability with a conductive metal layer or coating thereon, or of a conductive metal paint, which extends about at least the outer surface of the stationary core within which the rotary core is nested. Further, a conductive metallic shield is preferably provided on a wall of the stationary drum member which extends radially between the signal transformer and the D.C. motor and also about the latter.
    • 在用于磁带记录和/或再现装置的磁头鼓组件中,磁带记录和/或再现装置设置有用于在其周边引导磁带的静止和旋转磁鼓构件,同时视频信号通过磁头或磁头记录在磁带上或从磁带重现 由旋转鼓构件承载并延伸到限定在鼓构件的外围表面之间的间隙中; 旋转鼓构件以及因此携带的头或头被由相对于鼓构件同轴设置并且其轴直接联接到旋转鼓构件的DC电动机驱动,被记录或再现的信号通过 信号变压器,其分别包括固定到固定和旋转鼓构件并与固定和旋转鼓构件同轴的嵌套环形固定和旋转芯,并且承载相对的固定和旋转绕组,其分别连接到从固定鼓构件延伸到信头的头部或头部 并且这种信号变压器相对于由相邻DC电动机产生的静电和电磁噪声被屏蔽。 信号变压器的屏蔽件理想地包括导电金属屏蔽件,例如具有导电金属层或其上的涂层的高磁导率的材料或导电金属涂料,该导电金属涂层至少围绕固定件的外表面延伸 内核嵌入旋转核心。 此外,优选地在固定鼓构件的壁上设置导电金属屏蔽件,其在信号变压器和直流电动机之间径向延伸,并且还围绕后者延伸。