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1. 发明授权

US4017180A Exposure control for copying machine 失效
标题翻译：复印机曝光控制
公开(公告)号：US4017180A
公开(公告)日：1977-04-12
申请号：US602581
申请日：1975-08-07
申请人： Nai-Chyuan Yen , George Marinoff
发明人： Nai-Chyuan Yen , George Marinoff
IPC分类号： G03B27/80 , G03B27/74 , G03B27/78
CPC分类号： G03B27/80
摘要： Exposure control for an image projecting system, particularly for a projection system in which an image is projected from an illuminated object plane through a lens and onto an image plane of a copier of the full frame exposure type. Illumination means are employed for illuminating an object plane. Transducer means, preferably in the form of a photosensor, are provided in the light path and on the image side of a lens for primarily sensing the intensity of the light incident on the image plane. The transducer means produce an output signal which varies in accordance with the intensity of the projected image, and integrating means coupled to the transducer are adapted to produce a time integral output signal of the intensity of the illumination sensed by said transducer means. Means are further provided for discontinuing the illumination of the object plane by the illumination means when the time integral output signal reaches a predetermined level.
摘要翻译：用于图像投影系统的曝光控制，特别是对于其中图像从照明物体通过透镜投影到全帧曝光类型的复印机的图像平面上的投影系统。照明装置用于照射物体平面。优选地以光电传感器的形式的传感器装置设置在透镜的光路和像侧，用于主要感测入射在图像平面上的光的强度。传感器装置产生根据投影图像的强度变化的输出信号，并且耦合到换能器的积分装置适于产生由所述换能器装置感测的照明强度的时间积分输出信号。进一步提供用于当时间积分输出信号达到预定水平时由照明装置中断对象平面的照明的装置。

2. 依法登记的发明

USH1663H Controllable implosive sound projector 失效
标题翻译：可控爆内音
公开(公告)号：USH1663H
公开(公告)日：1997-07-01
申请号：US701907
申请日：1996-08-14
申请人： Nai-Chyuan Yen
发明人： Nai-Chyuan Yen
IPC分类号： G10K15/04 , H04R1/20
CPC分类号： G10K15/043
摘要： The controllable implosive sound projector is comprised of a geometrically shaped cavity within a housing with a material across the face of the cavity. The air within the cavity is evacuated so as to form a vacuum causing a pressure differential to be formed across the material when the projector is submerged in a fluid. At a predetermined pressure differential the material is ruptured creating a shock wave at the face of the cavity which propagates into the cavity with a concave wave front deformation due to the confined boundaries of the cavity that forms a spherical shock wave at the interior of the cavity. At the focal point of the cavity, the spherical shock wave collapses and an impulse wave is generated that causes a pressure wave to radiate out from the opening into the fluid.
摘要翻译：可控内爆声音投影仪由壳体内的几何形状的空腔组成，其中材料穿过空腔的表面。空腔内的空气被抽真空，以形成当投影仪浸没在流体中时在材料上形成压力差的真空。在预定的压力差下，材料破裂，在空腔的表面产生冲击波，其由于在空腔内部形成球形冲击波的空腔的限制边界而以凹波前变形的方式传播到空腔中。在空腔的焦点处，球形冲击波塌陷，并产生脉冲波，导致压力波从开口流出到流体中。

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