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公开(公告)号：US4676582A
公开(公告)日：1987-06-30
申请号：US556232
申请日：1983-10-18
申请人： Hisatoyo Kato , Yasuhiro Kawai , Yuji Ohara , Yoshihiko Okamoto , Yutaka Taniguchi , Kazuo Horikawa
发明人： Hisatoyo Kato , Yasuhiro Kawai , Yuji Ohara , Yoshihiko Okamoto , Yutaka Taniguchi , Kazuo Horikawa
CPC分类号： H04N1/02445 , H04N1/00 , H04N1/024 , H04N1/1135
摘要： A radiation image reader/recorder which mainly scans an optical beam (2, 22) emitted from the optical beam generation means of a laser light source (1, 21) via a light deflector (4, 25) with a frequency less than a main scanning frequency of 1 KHz, and which sub-scans at a sub-scanning density of more than 2.5 lines/mm, reading or recording a radiation image of continuous halftones. A cover (11, 29) is provided over at least at the optical passage between the means (1, 21) and the deflector (4, 25), thereby preventing the flow of air.
摘要翻译： PCT No.PCT / JP83 / 00047 Sec。 371日期：1983年10月18日 102（e）1983年10月18日日期PCT提交1983年2月18日PCT公布。 出版物WO83 / 0301200 日期：1983年9月1日。一种主要经由光偏转器（4,25）扫描从激光光源（1,21）的光束发生装置发射的光束（2,22）的放射线图像读取器/ 频率小于1KHz的主扫描频率，并且以大于2.5线/ mm的副扫描密度进行子扫描，读取或记录连续半色调的放射线图像。 至少在装置（1,21）和偏转器（4,25）之间的光学通道处设置盖（11,29），从而防止空气流动。
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公开(公告)号：US4535342A
公开(公告)日：1985-08-13
申请号：US571142
申请日：1984-01-17
申请人： Yuji Ohara , Kazuo Horikawa
发明人： Yuji Ohara , Kazuo Horikawa
CPC分类号： H04N1/4015
摘要： A recording laser beam is intensity-modulated and is caused to scan a photosensitive recording material in both the main and sub scanning directions. The position of the recording laser beam on the recording material in the main scanning direction is detected and position reference pulses are generated each time the laser beam moves along the recording material in the main scanning direction by a predetermined constant distance. The recording laser beam is intensity-modulated only for a predetermined constant time interval between each pair of adjacent position reference pulses and is made essentially null for the rest time interval between the adjacent position reference pulses so that a unit area of the recording material corresponding to one picture element is exposed to the recording laser beam for a predetermined constant time interval regardless of fluctuation in the scanning speed of the recording laser beam.
摘要翻译： 记录激光束被强度调制，并且在主扫描和副扫描方向上扫描感光记录材料。 检测记录激光束在主扫描方向上在记录材料上的位置，并且每当激光束沿着主扫描方向沿着记录材料移动预定的恒定距离时，就产生位置参考脉冲。 记录激光束仅在每对相邻位置参考脉冲之间的预定恒定时间间隔进行强度调制，并且对于相邻位置参考脉冲之间的休息时间间隔基本上为零，使得记录材料的单位面积对应于 不管记录激光束的扫描速度如何变化，一个像素都暴露于记录激光束预定的恒定时间间隔。
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3.发明授权
公开(公告)号：US4638156A
公开(公告)日：1987-01-20
申请号：US873300
申请日：1986-06-09
申请人： Kazuo Horikawa , Yuji Ohara
发明人： Kazuo Horikawa , Yuji Ohara
CPC分类号： H04N1/053 , H04N1/1135 , H04N1/12 , H04N2201/0471 , H04N2201/04755
摘要： A light beam scanning apparatus includes a sweeping unit for sweeping a light beam in response to a first signal. A photodetector has a plurality of optical gratings arranged in an array in a predetermined direction in which the light beam is swept. The photodetector generates a second signal in response to a movement of the light beam along the grating array. A control circuit generates the first signal in response to the second signal. The control circuit detects a scan speed of the light beam based on the second signal, and adjusts the first signal in response to the detected scan speed to control the scan speed of the light beam such that the detected scan speed substantially coincides with a predetermined speed.
摘要翻译： 光束扫描装置包括用于响应于第一信号扫掠光束的扫掠单元。 光电检测器具有沿预定方向排列成阵列的多个光栅，光束被扫描。 光电检测器响应于光束沿着光栅阵列的移动而产生第二信号。 控制电路响应于第二信号产生第一信号。 控制电路基于第二信号检测光束的扫描速度，并且响应于检测到的扫描速度来调整第一信号，以控制光束的扫描速度，使得检测到的扫描速度基本上与预定速度一致 。
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公开(公告)号：US4390882A
公开(公告)日：1983-06-28
申请号：US318538
申请日：1981-11-05
申请人： Yuji Ohara , Kazuo Horikawa
发明人： Yuji Ohara , Kazuo Horikawa
CPC分类号： H04N1/407
摘要： In a process of image recording by scanning a recording material with a light beam modulated by an image signal, the density of the recorded image is adjusted by controlling the light intensity during a predetermined interval using a clock pulse for picture elements, recording an image for a predetermined time within the predetermined interval, and changing the predetermined recording time for the entire image or only portions thereof. The recording time is changed in a very simple manner, for example, by operating a variable resistor.
摘要翻译： 在通过用图像信号调制的光束扫描记录材料的图像记录过程中，通过使用图像元素的时钟脉冲控制预定间隔期间的光强度来调节记录图像的浓度，记录图像 在预定间隔内的预定时间，并且改变整个图像的预定记录时间或仅改变其部分。 记录时间以非常简单的方式改变，例如通过操作可变电阻器。
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公开(公告)号：US4659180A
公开(公告)日：1987-04-21
申请号：US569560
申请日：1984-01-10
申请人： Toru Itakura , Yuji Ohara , Kazuo Horikawa
发明人： Toru Itakura , Yuji Ohara , Kazuo Horikawa
摘要： A metal mount of a galvanometer is secured to a plate made of an electrically conductive material via a thin insulating layer in electrically insulated relation to the plate. The thin insulating layer has a thickness within the range of about 10 .mu.m to about 500 .mu.m. The metal mount and the thin insulating layer are cylindrical and are secured to a cylindrical through hole formed in the plate. Or, the metal mount has an L-shaped cross-section. One section of the L-shaped metal mount is secured to the plate by use of bolts, and the other section thereof is secured to the galvanometer by use of screws. In this case, an insulation sheet is positioned between the one section of the L-shaped metal mount and the plate.
摘要翻译： 电流计的金属安装件通过与该板电绝缘的薄绝缘层固定到由导电材料制成的板上。 薄绝缘层的厚度在约10μm至约500μm的范围内。 金属安装件和薄绝缘层是圆柱形的并且固定到形成在板中的圆柱形通孔。 或者，金属支架具有L形横截面。 通过使用螺栓将L形金属安装件的一部分固定到板上，并且其另一部分通过使用螺钉固定到电流计。 在这种情况下，绝缘片位于L形金属安装座的一个部分和板之间。
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公开(公告)号：US4484073A
公开(公告)日：1984-11-20
申请号：US316371
申请日：1981-10-29
申请人： Yuji Ohara , Kazuo Horikawa
发明人： Yuji Ohara , Kazuo Horikawa
CPC分类号： H04N1/0283 , H04N1/053 , H04N1/40 , H04N2201/0471 , H04N2201/04767
摘要： In a system for reading out radiation image information recorded on a stimulable phosphor sheet which emits light upon stimulation by stimulating rays according to the recorded radiation image information, the phosphor sheet is two-dimensionally scanned by a laser beam and the light emitted therefrom is detected by a photodetector. The integrated output of the photodetector is read out for every unit of time period corresponding to a picture element of the radiation image. Position reference pulses are generated every time the relative position of the laser beam scans on the phosphor sheet by a standard amount in the main scanning direction. The integrated value of the output of the photodetector is read out every time the output is integrated for a fixed time period within each time interval between the position reference pulses.
摘要翻译： 在通过根据记录的放射线图像信息通过刺激射线来读出记录在刺激光下的可刺激的荧光体片上的放射线图像信息的系统中，荧光体片被激光束二维地扫描，并且检测出从其发射的光 通过光电检测器。 对于与放射线图像的像素对应的每个单位的时间段，读出光检测器的集成输出。 每当激光束的相对位置在主扫描方向上在荧光体片上扫描标准量时，就产生位置基准脉冲。 每当在位置参考脉冲之间的每个时间间隔内的固定时间段内积分输出时，就读出光检测器的输出的积分值。
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公开(公告)号：US4876556A
公开(公告)日：1989-10-24
申请号：US175430
申请日：1988-03-30
申请人： Yuji Ohara
发明人： Yuji Ohara
IPC分类号： B41J2/44 , G03G15/04 , G03G15/043 , G06K15/12 , H04N1/113
CPC分类号： G06K15/1214
摘要： A light beam recording apparatus modulates a light beam on the basis of image information and deflects the modulated light beam to scan a photosensitive recording material, thereby recording an image born by the image information on the recording material. The light beam recording apparatus is provided with a temperature sensor for detecting the temperature of the photosensitive recording material, and the quantity of light in the light beam is controlled on the basis of the output of the temperature sensor to compensate for change in the photosensitivity of the recording material with change in the temperature of the recording material.
摘要翻译： 光束记录装置基于图像信息调制光束，并且偏转调制的光束以扫描感光记录材料，从而将由图像信息承载的图像记录在记录材料上。 光束记录装置设置有用于检测感光记录材料的温度的温度传感器，并且基于温度传感器的输出来控制光束中的光量，以补偿光敏材料的光敏度的变化 记录材料的温度变化的记录材料。
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公开(公告)号：US4697269A
公开(公告)日：1987-09-29
申请号：US528250
申请日：1983-08-31
申请人： Yuji Ohara
发明人： Yuji Ohara
CPC分类号： H01S3/041 , H01S3/02 , H01S3/0404
摘要： A laser apparatus comprises a case, a laser tube positioned within the case, and a temperature control means for controlling the temperature of the atmosphere within the case. The temperature is controlled within the range of 35.degree. to 70.degree. C. The temperature control means is an air cooling means for generating air streams flowing from an air inlet formed in one side wall of the case to air outlets formed in the opposite side wall.
摘要翻译： 激光装置包括壳体，位于壳体内的激光管，以及用于控制壳体内的气氛温度的温度控制装置。 温度控制在35℃至70℃的范围内。温度控制装置是用于产生从形成在壳体的一个侧壁中的空气入口流出的空气流的空气冷却装置，其形成在相对侧壁中的空气出口 。
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公开(公告)号：US4467367A
公开(公告)日：1984-08-21
申请号：US258239
申请日：1981-04-28
申请人： Yuji Ohara , Masahiro Ohnishi
发明人： Yuji Ohara , Masahiro Ohnishi
CPC分类号： H04N1/407 , H04N1/4056
摘要： A half-tone picture recording device with which half-tone images are accurately recorded. With the number of pulses applied during each sampling period being fixed, a light beam such as laser source is subjected to binary modulation and scanned on a photosensitive material to record the image of a half-tone picture thereon. Input signal levels representing the picture to be recorded are converted into a number of pulses for each sampling period by representing numbers of pulses to be applied during any particular sampling period with these values determined in accordance with output density levels with input signal levels, necessary exposure with output density levels, and pulse numbers with necessary exposure.
摘要翻译： 半色调图像记录装置，准确记录半色调图像。 随着在每个采样周期期间施加的脉冲数量被固定，诸如激光源的光束被进行二进制调制并在感光材料上扫描以在其上记录半色调图像的图像。 表示要记录的图像的输入信号电平通过表示在任何特定采样周期期间施加的脉冲数而被转换成每个采样周期的脉冲数，其中这些值是根据输入信号电平的输出密度电平确定的，必要的曝光 具有输出密度水平和脉冲数量，必要的曝光。
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10.发明授权Reproducing a color image on a photosensitive material in response to an element-sequential color signal 失效响应于元素顺序的颜色信号，在感光材料上再现彩色图像
公开(公告)号：US4346401A
公开(公告)日：1982-08-24
申请号：US145242
申请日：1980-04-30
申请人： Yuji Ohara
发明人： Yuji Ohara
摘要： An electric signal obtained by two-dimensionally scanning a color original image through a micro-color filter is processed to be adapted for recording a color image on a subtractive color photosensitive material. The electric signal contains signal components for three primary colors in time series. The electric signal is first converted to a digital signal by use of an A/D converter and then divided into three signals for the three colors. Each signal of different color is processed to have signal sections in which every section of the signal is based on the level of the adjacent section of the signal, each section corresponding to the picture element of the original color image. Then, the three signals are D/A converted to an analog signal, which is used for recording a color image on a subtractive photosensitive material.
摘要翻译： 处理通过微彩色滤光片二维扫描彩色原始图像而获得的电信号，以适应于在减色感光材料上记录彩色图像。 电信号包含时间序列中三原色的信号分量。 电信号首先通过使用A / D转换器转换为数字信号，然后分为三种三种信号。 处理不同颜色的每个信号具有信号部分，其中信号的每个部分基于信号的相邻部分的电平，每个部分对应于原始彩色图像的图像元素。 然后，三个信号被D / A转换为模拟信号，用于在减影感光材料上记录彩色图像。
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