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11. 发明授权

US5227902A Spatial light modulator with a photoconductor on each side of a light modulation layer 失效
标题翻译：空间光调制器，在光调制层的每一侧具有光电导体
公开(公告)号：US5227902A
公开(公告)日：1993-07-13
申请号：US700475
申请日：1991-05-15
申请人： Itsuo Takanashi , Shintaro Nakagaki , Ichiro Negishi , Tetsuji Suzuki , Fujiko Tatsumi , Ryusaku Takahashi , Keiichi Maeno
发明人： Itsuo Takanashi , Shintaro Nakagaki , Ichiro Negishi , Tetsuji Suzuki , Fujiko Tatsumi , Ryusaku Takahashi , Keiichi Maeno
IPC分类号： G02F1/03 , G02F1/13 , G02F1/135 , G02F3/00
CPC分类号： G02F1/1354 , G02F3/00
摘要： A spatial light modulator which includes a light modulation layer which is interposed between two photoconductive layers and laminated to both layers; the two photo conductive layers have charge images written thereon, respectively, by illumination of a writing light carrying optical information; the illumination direction of the writing light to the photoconductive layers are different from each other; and the two photoconductive layers permit the reading light to pass therethrough. When illuminated by a reading light via either of the first or second photoconductive layers, the light modulation layer optically modulates the reading light in accordance with the first and second charge images, under the presence of a voltage applied to the modulator. Thus it reads read out the first information and second information. The first and second photoconductive layers permit the reading light to pass therethrough.
摘要翻译：一种空间光调制器，其包括介于两个光电导层之间并层压到两层的光调制层; 两个光导体层分别通过照射携带光学信息的写入光而写入其上的电荷图像; 写入光到光电导层的照明方向彼此不同; 并且两个光电导层允许读取光通过。当通过第一或第二光导层中的任一个被读取光照射时，光调制层在施加到调制器的电压的存在下，根据第一和第二充电图像对读取光进行光学调制。因此，它读取读出第一信息和第二信息。第一和第二光电导层允许读取光通过。

12. 发明授权

US5122895A Polarization converter for converting randomly polarized light to linearly polarized light 失效
标题翻译：用于将随机偏振光转换成线性偏振光的偏光转换器
公开(公告)号：US5122895A
公开(公告)日：1992-06-16
申请号：US623236
申请日：1990-12-04
申请人： Itsuo Takanashi , Shintaro Nakagaki , Ichiro Negishi , Tetsuji Suzuki , Fujiko Tatsumi , Ryusaku Takahashi , Keiichi Maeno
发明人： Itsuo Takanashi , Shintaro Nakagaki , Ichiro Negishi , Tetsuji Suzuki , Fujiko Tatsumi , Ryusaku Takahashi , Keiichi Maeno
IPC分类号： G02B5/04 , G02B27/08 , G02B27/28
CPC分类号： G02B27/283
摘要： An efficiency polarization converter of few optical components for converting a randomly polarized light into a single beam of linearly polarized light, comprises a first optical device receiving the random light and projecting two linearly polarized lights one projected in a first direction, another to a second optical device which changes the polarization plane thereof, the polarization changes light being directed by a third optical device to the first direction, thereby the two linearly polarized light are combined and aligned to have a common polarization to become the single beam linearly polarized light projected in the first direction. Typical first optical device is a polarization beam splitter, a typical second optical device is a quarterwave plate with a mirror, a halfwave plate or a Fresnel rhomb with a mirror, or a photomodulation material interposed between biased electrodes with a mirror, a typical third optical device is a polarization beam splitter, a prism or a mirror. The first and third optical devices may be combined to a 3-prism structure. The polarization converter may be used with liquid crystal light modulators to utilize image display systems.

13. 发明授权

US4916528A Color stripe filter in color image pickup apparatus 失效
标题翻译：彩色图像拾取装置中的彩条条滤波器
公开(公告)号：US4916528A
公开(公告)日：1990-04-10
申请号：US291202
申请日：1988-12-28
申请人： Itsuo Takanashi , Shintaro Nakagaki , Hiroshi Ichimura , Ichiro Negishi , Masaru Osada , Wataru Katase , Kaoru Kitami
发明人： Itsuo Takanashi , Shintaro Nakagaki , Hiroshi Ichimura , Ichiro Negishi , Masaru Osada , Wataru Katase , Kaoru Kitami
IPC分类号： H04N9/04
CPC分类号： H04N9/04
摘要： A color separation stripe filter in a color image pickup apparatus in which a color image is focused on a photo-electric conversion target through the filter to be converted to an electrostatic image so as to generate a color multiplexed signal. The filter comprises a plurality of recurrent groups of three different color stripes successively arranged at periodic intervals. The first color stripe has a characteristic showing a peak transmission factor in a red color region, the second color stripe has a characteristic showing a peak transmission factor in a green color region which is substantially equal to the peak transmission factor of the first color stripe, and the third color stripe has a characteristic showing a negative peak transmission factor at a wavelength between 500 nm and 530 nm so as to produce first and second peak transmission factors in a blue region and said green region. The first peak transmission factor is substantially equal to each of the peak transmission factors of the first and second color stripes and the second peak transmission factor existing in the green color region to be 50% to 80% of each of the peak transmission factors of the first and second color stripes, a curve of the characteristic of the third color stripe in the green region being substantially similar in configuration to that of the second color stripe.

14. 发明授权

US4736242A Transitory scanning speed phase compensation using luminance edge detection 失效
标题翻译：使用亮度边缘检测的瞬态扫描速度相位补偿
公开(公告)号：US4736242A
公开(公告)日：1988-04-05
申请号：US784867
申请日：1985-10-04
申请人： Itsuo Takanashi , Shintaro Nakagaki , Ichiro Negishi , Hiroshi Ichimura , Takashi Kuriyama
发明人： Itsuo Takanashi , Shintaro Nakagaki , Ichiro Negishi , Hiroshi Ichimura , Takashi Kuriyama
IPC分类号： H04N5/30 , H04N9/07 , H04N9/077
CPC分类号： H04N9/07
摘要： In a color imaging apparatus, an optical image is focused on a photoelectrical conversion target of a color image pickup tube through a color stripe filter having a plurality of successively arranged recurrent groups of different color stripes and converted to an electrostatic image which is scanned in rectangular raster form by an electron beam to generate a luminance signal and a color-multiplexed video signal. The leading and trailing edges of the luminance signal are detected by an edge detector to generate a control signal having first and second polarities in response to the detection of the leading and trailing edges, respectively. The color multiplexed signal is phase-controlled with respect to the leading and trailing edges of the luminance signal in accordance with the control signal by a variable delay line or by a pair of beam deflection plates.
摘要翻译：在彩色成像装置中，光学图像通过具有多个连续布置的不同颜色条纹的反复组合的彩色条带滤光器聚焦在彩色图像拾取管的光电转换目标上，并转换成静止图像，该静电图像以矩形扫描通过电子束形成光栅形成亮度信号和彩色复用视频信号。亮度信号的前沿和后沿由边缘检测器检测，以分别响应于前沿和后沿的检测而产生具有第一和第二极性的控制信号。彩色复用信号根据控制信号通过可变延迟线或一对光束偏转板相对于亮度信号的前沿和后沿进行相位控制。

15. 发明授权

US4857995A Color imaging apparatus including control system for stabilizing phase and frequency of a video signal carrier frequency 失效
标题翻译：彩色成像装置包括用于稳定视频信号载波频率的相位和频率的控制系统
公开(公告)号：US4857995A
公开(公告)日：1989-08-15
申请号：US108988
申请日：1987-10-14
申请人： Itsuo Takanashi , Shintaro Nakagaki , Hiroshi Ichimura , Ichiro Negishi , Masaru Osada
发明人： Itsuo Takanashi , Shintaro Nakagaki , Hiroshi Ichimura , Ichiro Negishi , Masaru Osada
IPC分类号： H04N9/077
CPC分类号： H04N9/077
摘要： A color filter has a plurality of succesively arranged recurrent groups of different color stripes. An image pickup tube has a photoelectrical conversion target exposed to light passing through the color filter and an index signal generation pattern. The image pickup tube outputs a signal containing a color signal component determined by a carrier which is modulated with the individual color stripes of each recurrent group of the color filter. The output signal from the image pickup tube also contains an index signal component which depends on the index pattern. A first memory holds at least part of the index signal component. The index signal component held by the memory is periodically updated. A second memory holds a portion of the output signal from the image pickup tube which was obtained under conditions where a predetermined color light illuminates the photoelectrical conversion target via the color filter. A reference signal is generated in accordance with the index signal component read from the first memory and with the signal portion read from the second memory. A color signal is detected from the output signal of the image pickup tube by use of the reference signal.
摘要翻译：滤色器具有多个不同颜色条纹的连续布置的反复组合。图像拾取管具有暴露于通过滤色器的光的光电转换目标和索引信号产生模式。图像拾取管输出包含由通过滤色器的每个复现组的各个色条调制的载体确定的颜色信号分量的信号。来自图像拾取管的输出信号还包含取决于索引图案的索引信号分量。第一存储器保持索引信号分量的至少一部分。由存储器保持的索引信号分量被周期性地更新。第二存储器保持来自图像拾取管的输出信号的一部分，其在预定的颜色光通过滤色器照射光电转换目标的条件下获得。根据从第一存储器读取的索引信号分量和从第二存储器读取的信号部分生成参考信号。通过使用参考信号从图像拾取管的输出信号检测彩色信号。

16. 发明授权

US4855816A Color imaging apparatus including phase control system for maintaining start positions of scanning lines equal to start positions of reference values thereof 失效
标题翻译：彩色成像装置包括用于将扫描线的起始位置保持在等于其参考值的开始位置的相位控制系统
公开(公告)号：US4855816A
公开(公告)日：1989-08-08
申请号：US137926
申请日：1987-12-28
申请人： Itsuo Takanashi , Shintaro Nakagaki , Hiroshi Ichimura , Ichiro Negishi , Masaru Osada
发明人： Itsuo Takanashi , Shintaro Nakagaki , Hiroshi Ichimura , Ichiro Negishi , Masaru Osada
IPC分类号： H04N9/077
CPC分类号： H04N9/077
摘要： A color filter has recurrent groups of different color stripes. An image pickup tube has a photoelectrical conversion target exposed to light passing through the color filter and an index signal generation pattern. The image pickup tube outputs a signal containing a color signal component and an index signal component which depends on the index pattern. The index signal component has a phase representing a present start position of each scanning line. A memory holds a portion of the output signal from the image pickup tube corresponding to an initial frame period which occurs under conditions where a predetermined color light is applied to the photoelectrical conversion target via the color filter. A reference signal reflects a signal read out from the memory. A color component is detected from the output signal of the image pickup tube by use of the reference signal. The reference signal contains an index signal component which has a phase representing a start position of each scanning line during the initial frame period. A closed-loop phase control system allows the present start position of each scanning line to remain essentially equal to the start position of the corresponding scanning line during the initial frame period. A phase or level shifter is interposed in a loop of the closed-loop phase control system.
摘要翻译：彩色滤光片具有不同颜色条纹的反复组合。图像拾取管具有暴露于通过滤色器的光的光电转换目标和索引信号产生模式。图像拾取管输出包含依赖于索引图案的颜色信号分量和索引信号分量的信号。索引信号分量具有表示每条扫描线的当前开始位置的相位。存储器保持来自图像拾取管的输出信号的一部分对应于在通过滤色器将预定的色光施加到光电转换目标的条件下发生的初始帧周期。参考信号反映从存储器读出的信号。通过使用参考信号从图像拾取管的输出信号检测颜色分量。参考信号包含索引信号分量，其具有表示在初始帧周期期间的每个扫描线的开始位置的相位。闭环相位控制系统允许每个扫描线的当前开始位置在初始帧周期期间基本上等于相应扫描线的起始位置。相位或电平移位器插入闭环相位控制系统的环路中。

17. 发明授权

US4620221A Color imaging apparatus with compensation for beam deflection nonlinearity 失效
标题翻译：彩色成像装置补偿光束偏转非线性
公开(公告)号：US4620221A
公开(公告)日：1986-10-28
申请号：US582226
申请日：1984-02-21
申请人： Itsuo Takanashi , Shintaro Nakagaki , Hiroshi Ichimura , Takashi Kuriyama , Ichiro Negishi
发明人： Itsuo Takanashi , Shintaro Nakagaki , Hiroshi Ichimura , Takashi Kuriyama , Ichiro Negishi
IPC分类号： H04N9/07 , H04N9/077 , H04N9/083
CPC分类号： H04N9/077 , H04N9/07
摘要： In a single-tube color imaging apparatus, the pickup tube includes a photoelectrical conversion target and a filter having recurrent groups of different color stripes through which an optical image is passed to the target. The target is scanned by an electron beam to produce a video signal having a frequency inversely proportional to the intervals at which the recurrent groups are arranged. The video signal varies in phase with the relative values of primary color components contained in the image passing through the stripes of each group and in amplitude with the intensity of the primary color components. Prior to normal operation, the target is uniformly illuminated with light of a predetermined color to generate a reference video signal, which is stored in a field memory. During normal operation, the reference signal is repeatedly read out of the memory and compared by frequency and phase comparators with the video signal from the target. Frequency and phase control circuitry responds to the outputs of the comparators by controlling the frequency and phase relationships between the two signals so that they match in frequency and phase before being applied to synchronous detectors.
摘要翻译：在单管彩色成像装置中，拾取管包括光电转换目标和具有不同颜色条纹的复现组的滤光器，通过该组不同的光学图像被传送到目标。目标被电子束扫描以产生具有与布置循环组的间隔成反比的频率的视频信号。视频信号与通过每组的条纹的图像中包含的原色分量的相对值和基本颜色分量的强度的振幅相位变化。在正常操作之前，用预定颜色的光均匀地照射目标，以产生存储在场存储器中的参考视频信号。在正常操作期间，参考信号被重复读出存储器，并由频率和相位比较器与来自目标的视频信号进行比较。频率和相位控制电路通过控制两个信号之间的频率和相位关系来响应比较器的输出，使得它们在施加到同步检测器之前在频率和相位上匹配。

18. 发明授权

US5185617A Method of information conversion and apparatus thereof 失效
标题翻译：信息转换方法及其装置
公开(公告)号：US5185617A
公开(公告)日：1993-02-09
申请号：US633223
申请日：1990-12-24
申请人： Itsuo Takanashi , Shintaro Nakagaki , Ichiro Negishi , Tsutou Asakura
发明人： Itsuo Takanashi , Shintaro Nakagaki , Ichiro Negishi , Tsutou Asakura
IPC分类号： G02B26/10 , G02F1/03 , G02F1/13 , H04N9/31
CPC分类号： H04N9/3129
摘要： A method of information conversion in which a recording medium is composed of a photoconductive member and a photo-modulation member both exhibiting a photoelectric effect and a dielectric mirror interposed therebetween, laminated to each other. An electro-magnetic radiation beam intensity-modulated with a serial information to be converted is radiated to the photoconductive member. The radiated beam is deflected straight along a surface of the photoconductive member to form a charge image composed of electric charges having an electric charge quantity corresponding to the information, as arranged in a straight line in a region on a border between the photoconductive member and dielectric mirror, corresponding to a region of the photoconductive member to which the beam is radiated. A two-dimensional bundle of electro-magnetic radiation beams of constant intensity and covering the region on the border is radiated to the recording medium at the photo-modulation member side thereof to take out a two-dimensional bundle of electro-magnetic radiation beams exhibiting intensity variation subjected to the charge image due to the photoelectric effect from the recording medium.
摘要翻译：一种信息转换方法，其中记录介质由感光体和光电效应两者之间介于其间的电介质镜组成。将具有要转换的串行信息强度调制的电磁辐射束照射到感光体上。辐射光束沿着感光体的表面直线偏转，以形成由具有与信息相对应的电荷量的电荷组成的电荷图像，其在感光体和电介质之间的边界上的区域中排列成直线对应于光束辐射到的感光体的区域。具有恒定强度并覆盖边界区域的二维电磁辐射束束在其光调制构件侧被辐射到记录介质，以取出呈现出二维束的电磁辐射束由于来自记录介质的光电效应而受到充电图像的强度变化。

19. 发明授权

US4897730A Image pickup device with index signal generator 失效
标题翻译：带索引信号发生器的摄像装置
公开(公告)号：US4897730A
公开(公告)日：1990-01-30
申请号：US239292
申请日：1988-09-01
申请人： Makotoi Iwahara , Itsuo Takanashi , Shintaro Nakagaki , Horosi Ichimura , Ichiro Negishi , Masaru Osada , Wataru Katase
发明人： Makotoi Iwahara , Itsuo Takanashi , Shintaro Nakagaki , Horosi Ichimura , Ichiro Negishi , Masaru Osada , Wataru Katase
IPC分类号： H04N9/07 , H04N5/228 , H04N9/077
CPC分类号： H04N9/077 , H04N5/228
摘要： An image pickup device comprises an image pickup tube and an index generator having a light shield box; a light emitting diode held in the light shield box; a stripe screen provided on the photosensitive layer of the image pickup tube and shading compensation filter having transmittance pattern which equalizes illuminance variation on the stripe pattern of the stripe screen caused by the light emitting diode so that illuminance at any point of the stripe pattern becomes uniform. The image pickup tube generates picture signal together with index signal which is derived from the projected stripe pattern image on peripheral portion of the photosensitive layer through the shading compensation filter which equalizes index signal output level to make timing derived from the index signal accurate. A method of providing shading compensation filter is disclosed where a sheet of negative film is placed on the opening of the light shield box, exposed to the light emitting diode. Then the sheet of film is developed by chemical process.
摘要翻译：图像拾取装置包括图像拾取管和具有遮光盒的指示发生器; 保护在灯罩中的发光二极管; 设置在图像拾取管的感光层上的条纹屏幕和具有使由发光二极管引起的条纹屏幕条纹图案上的照度变化相等的透射图案的阴影补偿滤光器，使得条纹图案的任何点处的照度变得均匀。图像拾取管与通过使索引信号输出电平相等的来自感光层的周边部分上的投影条纹图案的暗影补偿滤波器产生图像信号，使得从索引信号得到的定时准确。公开了一种提供阴影补偿滤光器的方法，其中一片负片放置在遮光盒的开口上，暴露于发光二极管。然后通过化学工艺开发薄膜片。

20. 发明授权

US5031047A Image information processing method and apparatus thereof 失效
标题翻译：图像信息处理方法及其装置
公开(公告)号：US5031047A
公开(公告)日：1991-07-09
申请号：US505987
申请日：1990-04-06
申请人： Itsuo Takanashi , Shintaro Nakagaki , Hirohiko Shinonaga , Tsutou Asakura , Masato Furuya , Tetsuji Suzuki
发明人： Itsuo Takanashi , Shintaro Nakagaki , Hirohiko Shinonaga , Tsutou Asakura , Masato Furuya , Tetsuji Suzuki
IPC分类号： G03G5/02 , H04N5/30
CPC分类号： G03G5/02 , H04N5/30
摘要： There are provided an image information processing method and an apparatus thereof to process information carried by an electro-magnetic radiation beam by means of a photo-to-photo transducer. An intensity of an image information is adjusted by varying the intensity of an electro-magnetic radiation beam used for reading the information as electro-magnetic radiation beam information, which has been recorded on the transducer as a charge image. The electro-magnetic raidation beam information read out from the transducer is inverted by changing an operating range of a photo-modulation layer which is one of the components of the transducer. Furthermore, the electro-magnetic radiation beam information read out from the transducer is nonlinearly processed.
摘要翻译：提供了一种图像信息处理方法及其装置，用于通过光电转换器处理由电磁辐射束携带的信息。通过将作为电磁辐射束信息读取的电磁辐射束的强度改变为作为电荷图像记录在换能器上的电磁辐射束信息来调整图像信息的强度。通过改变作为换能器的组件之一的光调制层的操作范围来反转从换能器读出的电磁冲击波束信息。此外，从换能器读出的电磁辐射束信息被非线性处理。

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