公开(公告)号：US4814791A

公开(公告)日：1989-03-21

申请号：US110403

申请日：1987-10-20

申请人： Yuji Ohara ,  Hideo Watanabe ,  Takashi Shoji

发明人： Yuji Ohara ,  Hideo Watanabe ,  Takashi Shoji

IPC分类号： H04N1/40 ,  H04N1/407 ,  G01D9/42 ,  H04N1/23

CPC分类号： H04N1/4005 ,  H04N1/40037 ,  H04N1/4078

摘要： A laser beam recording method and apparatus are constituted for recording a continuous tone image by scanning a laser beam emitted by a semiconductor laser on a photosensitive material by a beam scanning system, and controlling a drive current for the semiconductor laser based on a light emission level instructing signal corresponding to an image signal, thereby to modulate the intensity of the laser beam. The laser beam intensity is detected, and a feedback signal corresponding to the detected intensity is fed back to the light emission level instructing signal. The light emission level instructing signal is corrected by a correction table to compensate for nonlinearity of drive current-optical output characteristics of the semiconductor laser and/or nonlinearity of incident light intensity-optical transmittance characteristics of an optical element of the beam scanning system, thereby to make linear the relationship between the intensity of the laser beam based on the corrected light emission level instructing signal and the uncorrected light emission level instructing signal.

摘要翻译： 一种激光束记录方法和装置，用于通过用光束扫描系统扫描由半导体激光器发射的激光束在感光材料上记录连续色调图像，并且基于发光水平控制半导体激光器的驱动电流 指示对应于图像信号的信号，从而调制激光束的强度。 检测激光束强度，将与检测出的强度对应的反馈信号反馈给发光电平指示信号。 通过校正表校正发光电平指示信号，以补偿半导体激光器的驱动电流 - 光输出特性的非线性和/或光束扫描系统的光学元件的入射光强度 - 光透射特性的非线性，从而 基于校正的发光电平指示信号和未校正的发光电平指示信号来使激光束的强度之间的关系成线性。

公开(公告)号：US4858019A

公开(公告)日：1989-08-15

申请号：US229417

申请日：1988-08-08

申请人： Yuji Ohara ,  Hideo Watanabe

发明人： Yuji Ohara ,  Hideo Watanabe

IPC分类号： G02B26/10 ,  B41J2/44 ,  H04N1/047 ,  H04N1/113 ,  H04N1/12 ,  H04N1/23

CPC分类号： H04N1/047 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04789 ,  H04N2201/04791

摘要： A modulated light beam is deflected by a light deflector to scan a recording medium in a main scanning direction while the recording medium is being fed through a feed path in an auxiliary scanning direction. The light beam is applied during intervals before and after the recording medium is scanned by the modulated light beam. The light beam deflected during the intervals is detected across the feed path by a light detector. A scanning period in which the recording medium is scanned by the modulated light beam is detected based on a change in an output signal from the light detector due to the presence of the recording medium in the feed path between the light detector and the light deflector. The speed of feed of the recording medium in the auxiliary scanning direction by counting pulses of a reference clock signal during the detected scanning period.

摘要翻译： 调制光束被光偏转器偏转，以在主扫描方向上扫描记录介质，同时记录介质通过辅助扫描方向上的馈送路径馈送。 在通过调制光束扫描记录介质之前和之后的间隔期间施加光束。 在间隔期间偏转的光束通过光检测器跨越馈送路径被检测。 基于光检测器和光偏转器之间的馈送路径中的记录介质的存在，基于来自光检测器的输出信号的变化来检测记录介质被调制光束扫描的扫描周期。 在检测到的扫描周期期间通过对参考时钟信号的脉冲进行计数来记录介质在辅助扫描方向上的馈送速度。

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。

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

IPC分类号： G01N23/04 ,  G03B42/02 ,  G06T1/00 ,  H04N1/00 ,  H04N1/024 ,  H04N1/113 ,  G02B26/10

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。

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

IPC分类号： G02B26/10 ,  B41J2/44 ,  G03G15/04 ,  H04N1/113 ,  H04N1/401 ,  G01D9/42 ,  G01D15/04

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。

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

IPC分类号： H01S3/04 ,  H01S3/02 ,  H01S3/03 ,  H01S3/041 ,  H01S3/05

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 。

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

IPC分类号： G02B26/10 ,  G01P3/36 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  H01J3/28

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 。

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

IPC分类号： H04N1/23 ,  G06K15/12 ,  H04N1/405 ,  H04N1/407 ,  H04N1/22

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。

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

IPC分类号： H04N1/29 ,  B41J2/525 ,  H04N1/46 ,  H04N1/48 ,  H04N1/50

CPC分类号： H04N1/502 ,  H04N1/46

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。

公开(公告)号：US4789782A

公开(公告)日：1988-12-06

申请号：US85494

申请日：1987-08-14

申请人： Yuji Ohara

发明人： Yuji Ohara

IPC分类号： G03B42/02 ,  H04N1/32 ,  G01N23/04

CPC分类号： H04N1/32507 ,  G03B42/02 ,  H04N1/32502 ,  H04N2201/0081 ,  H04N2201/0082 ,  H04N2201/0412

摘要： A radiation image recording and reproducing system comprises recording apparatuses for recording image information on a stimulable phosphor sheet, read-out apparatuses for photoelectrically detecting the image information by scanning the stimulable phosphor sheet by stimulating rays, and a reproducing apparatus for scanning a recording sheet by light modulated with the image information thus read out to reproduce the image information on the recording sheet. The reproducing apparatus is provided with a plurality of trays, and the recording sheet with the image information reproduced thereon is distributed and fed into any one of the trays. The distribution of the recording sheet is carried out in accordance with the read-out apparatus which was used for reading out the image information reproduced on the recording sheet, the recording apparatus which was used for recording of the image information reproduced on the recording sheet, or predetermined classifying conditions with respect to the image information reproduced on the recording sheet.

摘要翻译： 一种放射线图像记录和再现系统，包括用于在可刺激的荧光体片上记录图像信息的记录装置，通过用刺激光线扫描可刺激的荧光粉片来对图像信息进行光电检测的读出装置，以及用于扫描记录片材的再现装置 由此读出的图像信息进行光调制，以在记录纸上再现图像信息。 再现装置设置有多个托盘，并且其上再现有图像信息的记录纸被分配并馈送到任一个托盘中。 记录纸的分布是根据用于读出在记录纸上再现的图像信息的读出装置，用于记录在记录纸上再现的图像信息的记录装置进行的， 或相对于在记录纸张上再现的图像信息的预定分类条件。