公开(公告)号：JPS57120814A

公开(公告)日：1982-07-28

申请号：JP688681

申请日：1981-01-19

Applicant: Sharp Corp

Inventor： KITA SHIGEHARU ,  ODA YUKIHISA ,  FUKUDA HIROAKI ,  HARA TAKEO

IPC: G01D5/36 ,  G01D5/249 ,  G01P3/486

CPC classification number: G01D5/2492

Abstract: PURPOSE:To achieve the improvement in mass productivity and the reduction of a cost by specifying the relation between a transmission type photosensor and a rotor thereby obtaining required performance despite the presence of variance in elements. CONSTITUTION:A transmission type photosensor 1 is of a U shape, and a light emitting element 2 and a photodetector 3 are incoporated on the inner side of its respective leading ends. A semiconductor light emitting diode (LED) is used for the element 2 and a phototransistor for the detector 3. Terminals 4, 5, 6 are for an electric power source, output and earth. Vane parts 8 of a rotor 7 are inserted between the light emitting and photodetecting parts of the photosensor 1, and when the rotor 1 revolves, the vanes 8a, 8b- shut off the light of the element 2 entering the detector 3 intermittently. In the sensor 1 and the rotor 7, the width of the photodetecting part of the photosensor is defined as (a), the spacing between the vanes of the rotor as (b), and the width of the vanes of the rotor as (c), and the (a), (b), (c) are so formed as to satisfy the conditions shown by the equations.

Abstract translation: 目的：通过规定透射型光电传感器和转子之间的关系，实现批量生产率的提高和成本的降低，从而获得所需的性能，尽管元素存在差异。 构成：透射型光电传感器1为U形，发光元件2和光电检测器3在其各自前端的内侧插入。 半导体发光二极管（LED）用于元件2和用于检测器3的光电晶体管。端子4,5,6用于电源，输出和接地。 转子7的叶片部8被插入光传感器1的发光部和受光部之间，当转子1旋转时，叶片8a，8b间歇地切断进入检测器3的元件2的光。 在传感器1和转子7中，光传感器的受光部的宽度被定义为（a），转子叶片之间的间距（b）和转子叶片的宽度为（c ），并且（a），（b），（c）形成为满足等式所示的条件。

公开(公告)号：JPS57125817A

公开(公告)日：1982-08-05

申请号：JP1322981

申请日：1981-01-30

Applicant: Sharp Corp

Inventor： KITA SHIGEHARU ,  ODA YUKIHISA ,  FUKUDA HIROAKI ,  MASAKI RIYOUICHI ,  HARA TAKEO

IPC: G01D5/36

CPC classification number: G01D5/36

Abstract: PURPOSE:To extend the set range of a threshold level of a shaping circuit, by forming the blades of a rotor so that their width and interval are different in size and have a prescribed ratio to the width of the photodetecting part of a transmission type photosensor. CONSTITUTION:The width of a photodetecting part 3 of a transmission type photosensor 1, the interval of blades 8a of a rotor 17, and the width of blades 8a are denoted as (a), (c), and (b), respectively, and the width (b) and the interval (c) are different in size and have a prescribed ratio to the width (a).

Abstract translation: 目的：通过形成转子的叶片使其宽度和间隔尺寸不同，并且与透射型光电传感器的受光部分的宽度相比具有规定的比例，来扩展整形电路的阈值电平的设定范围 。 构成：透射型光电传感器1的受光部3的宽度，转子17的叶片8a的间隔和叶片8a的宽度分别表示为（a），（c）和（b） 并且宽度（b）和间隔（c）的尺寸不同，并且与宽度（a）具有规定的比例。

公开(公告)号：JPS5779412A

公开(公告)日：1982-05-18

申请号：JP15627680

申请日：1980-11-05

Applicant: Sharp Corp

Inventor： ODA YUKIHISA ,  HARA TAKEO ,  FUKUDA HIROAKI ,  KITA SHIGEHARU

IPC: G01F23/02 ,  G01F23/292

CPC classification number: G01F23/292

Abstract: PURPOSE:To obtain a liquid level indicator which can measure a consecutive change of a liquid level without causing any secular change, by providing a panel having a binary coded transmissive region between the light emitting elements and photodetector which are set in plural pairs in parallel to each other. CONSTITUTION:Light emitting elements A-E plus photodetectors A'-E' are provided at the places having opposing U-shaped slits within a case X. Then a panel Y formed by a light masking plate Zo containing light transmissive regions Za, Zb, Zc, Zd and Ze is provided between those light emitting elements and photodetectors. A float that moves up and down by the up-down movement of the liquid is attached to the panel Y. Furthermore, the distribution of the regions Za-Ze is formed in 2 =32 different ways according to the position. Accordingly the light receiving combination of the detector A'-E' varies according to the up-down change of the liquid. Thus this change of combination is detected to know the level of liquid.

Abstract translation: 目的：为了获得可以测量液位连续变化而不引起任何长期变化的液面指示器，通过在发光元件和光电检测器之间设置具有二进制编码透射区域的面板，其平行设置成多对 彼此。 构成：在壳体X内具有相对的U形狭缝的位置处提供发光元件AE和光电检测器A'-E'。然后，由含有透光区域Za，Zb，Zc的遮光板Zo形成的面板Y， Zd和Ze设置在这些发光元件和光电检测器之间。 通过液体的上下移动而上下移动的浮子被附接到面板Y.此外，区域Za-Ze的分布根据位置形成为2种不同的方式。 因此，检测器A'-E'的受光组合根据液体的上下变化而变化。 因此，检测到组合的这种变化以了解液体的水平。

公开(公告)号：JPS5766324A

公开(公告)日：1982-04-22

申请号：JP14352380

申请日：1980-10-13

Applicant: Sharp Corp

Inventor： FUKUDA HIROAKI ,  ODA YUKIHISA ,  KITA SHIGEHARU ,  HARA TAKEO

IPC: G01J1/44 ,  G01J1/16

CPC classification number: G01J1/1626

Abstract: PURPOSE:To constitute the simple light receiving circuit which is suitable for the operation at high temperatures and for sensing of very small amount of light by eliminating a dark current due to a light receiving element which does not receive the light from the current sensed by a light receiving element which actually receives the light. CONSTITUTION:The dark current of the light receiving element PT1, whic does not receive the light and which is used for cancelling the dark current, is the same as the dark current of the light receiving element PT2 which actually receives the light. The emitter currents ID and I3 of transistor Tr1 and Tr2 which are connected to both light receiving elements are adjusted to be equal, and a current mirror circuit is constituted. In said light receiving circuit, since the base current Ib=IPT2- I3 (where IPT2 is light current of PT2 + dark current) of Tr3 in the case the light from LED is inputted to PT2 is ID=I1 (comparison reference current)+IPT1 (dark current of PT1), Ib=(IPT2-IPT1)-I1 is obtaind. Therefore, the effect of the dark current is eliminated. Thus, the erroneous operation at high temperature can be eliminated, and the vary small amount of light can be sensed at a normal temperature.

Abstract translation: 目的：构成适用于高温操作的简单光接收电路，通过消除由于受光元件而导致的暗电流，从而感测到非常少量的光，该光接收元件不会从由 实际接收光的光接收元件。 构成：实际接收光的受光元件PT2的暗电流与受光元件PT1的不接收光并且用于消除暗电流的暗电流相同。 连接到两个光接收元件的晶体管Tr1和Tr2的发射极电流ID和I3被调整为相等，并且构成电流镜电路。 在所述光接收电路中，由于来自LED的光输入到PT2的情况下，Tr3的基极电流Ib = IPT2〜I3（其中IPT2为PT2的电流为暗电流）为ID = I1（比较基准电流）+ IPT1（PT1的暗电流），Ib =（IPT2-IPT1）-I1。 因此，消除了暗电流的影响。 因此，可以消除在高温下的错误操作，并且可以在常温下感测出少量的光。

公开(公告)号：JPS6157366A

公开(公告)日：1986-03-24

申请号：JP18128284

申请日：1984-08-28

Applicant: Sharp Corp

Inventor： HARA TAKEO ,  MIYAKE MASANOBU

IPC: H02P7/06 ,  B41J19/20 ,  B41J19/30

CPC classification number: B41J19/207

Abstract: PURPOSE:To obtain a high resolution output and enable high-speed printing, by using a DC motor and a rotary encoder. CONSTITUTION:When printing after stopping a printing head 1 at a left-end home position, the head 1 is started moving rightward in response to a velocity- designating signal, and after the head 1 passes through an accelerating region, a count in a counter 7 is discriminated. A signal outputted from the encoder 5 after the moment the count in the counter 7 reaches n (fixed-velocity region) is used as a timing for impacting a print dot, and simultaneously with completion of predetermined printing, the velocity-designating signal is turned OFF while a stop-designating signal is turned ON. In response to the designation, -n is loaded into the counter 7, and the head 1 is stopped at a position where it has been moved an n-pulse amount rightward from a printing finish position (the count in the counter 7 becomes 0). By this, printing in one line is completed. In the case of printing in both forward and reverse directions, the printing in the next line is conducted while moving the heat leftward. Accordingly, since the signal from the encoder is used for the print dot, high-resolution high-speed printing can be performed.

Abstract translation: 目的：使用直流电机和旋转编码器，获得高分辨率输出并启用高速打印。 构成：当在左端起始位置停止打印头1之后打印时，头1响应于速度指示信号而开始向右移动，并且在头1通过加速区域之后，计数器中的计数器 7被区分。 使用在计数器7中的计数到达n（固定速度区域）之后从编码器5输出的信号作为冲击打印点的定时，并且在完成预定打印的同时，将速度指定信号转动 OFF，而停止指定信号为ON。 响应于该指定，-n被加载到计数器7中，并且头1停止在从打印完成位置向右移动n脉冲量的位置（计数器7中的计数变为0） 。 这样，一行打印就完成了。 在向前和向后进行打印的情况下，在向左移动热量的同时进行下一行的打印。 因此，由于来自编码器的信号用于打印点，因此可以执行高分辨率高速打印。