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公开(公告)号：US5800033A
公开(公告)日：1998-09-01
申请号：US548455
申请日：1995-10-26
CPC分类号： H04N9/3105
摘要： An image projecting apparatus comprises a light source for emitting light, a spatial light modulating element, an illuminating optical system for irradiating a light from the light source to the spatial light modulating element, and a projecting optical system for projecting an image of the spatial light modulating element. The illuminating optical system or the projecting optical system comprises a telecentric optical system and a light shielding frame disposed at a focus position of the telecentric optical system for controlling an angular component of a luminous flux of light emitted by the light source or the spatial light modulating element, respectively, to adjust the quality of the projected image.
摘要翻译： 图像投影装置包括用于发光的光源，空间光调制元件，用于将来自光源的光照射到空间光调制元件的照明光学系统，以及用于投影空间光的图像的投影光学系统 调制元件。 照明光学系统或投影光学系统包括远心光学系统和设置在远心光学系统的焦点位置处的遮光框架，用于控制由光源发射的光的光束的角分量或空间光调制 元素，分别调整投影图像的质量。
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公开(公告)号：US5577826A
公开(公告)日：1996-11-26
申请号：US548456
申请日：1995-10-26
CPC分类号： H04N9/3105 , G02B27/283
摘要： To effectively utilize a luminous flux from a light source thereby realizing a reflecting type color image projecting apparatus having a high brightness. The apparatus includes three sheets of reflecting type optical writing liquid crystal light valves, means for writing images of respective color components to the respective reflecting type optical writing liquid crystal light valves, a polarized beam splitter for splitting a light source luminous flux into polarized light illuminating luminous fluxes, means for separating only a green component of one of the polarized light illuminating luminous fluxes, means for separating the other one of the polarized light illuminating luminous fluxes into a red component and a blue component and a projecting lens. A back focus from the projecting lens to the reflecting type optical writing liquid crystal light valves can be shortened and utilization efficiency of a luminous flux from a light emitting source can more be enhanced than a conventional reflecting type color image projecting apparatus.
摘要翻译： 为了有效地利用来自光源的光通量，从而实现了具有高亮度的反射型彩色图像投影装置。 该装置包括三片反射型光写入型液晶光阀，用于将各种颜色分量的图像写入各反射型光写入型液晶光阀的装置，用于将光源光束分解为偏振光的偏振分束器 光通量，用于仅分离偏振光照射光束中的一个的绿色分量的装置，用于将偏振光照射光束中的另一个分离为红色分量和蓝色分量的装置以及投影透镜。 可以缩短从投影透镜到反射型光写入型液晶光阀的后焦距，与传统的反射型彩色图像投影装置相比，可以更加提高来自发光源的光通量的利用效率。
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公开(公告)号：US5854707A
公开(公告)日：1998-12-29
申请号：US611738
申请日：1996-03-06
IPC分类号： G02B5/30 , G02B27/28 , G02F1/1335 , G02F1/13357 , G03B21/00 , H04N5/74
CPC分类号： G02F1/13362 , G02B27/28 , G02B27/283 , H04N5/7441 , G02F1/133536 , G02F2001/13355
摘要： A polarizing type optical apparatus has a first polarizing element disposed in a path of an incident luminous flux produced by a light source and a second polarizing element disposed in the path of a luminous flux reflected from the first polarizing element. The first polarizing element has a p polarized light component transmitting characteristic which varies less with respect to an incident angle of a luminous flux than that of the second polarizing element and has a p polarized light component transmittance which is higher than that of the second polarizing element, and the second polarizing element has an s polarized light component transmitting characteristic which varies less with respect to an incident angle of a luminous flux than that of the first polarizing element and has an s polarized light component transmittance which is lower than that of the first polarizing element, such that the incident luminous flux produced by the light source is irradiated onto the first polarizing element, the luminous flux reflected by the first polarizing element consists mainly of an s polarized light component, and the luminous flux reflected by the second polarizing element consists of a substantially pure s polarized light component.
摘要翻译： 偏振型光学装置具有设置在由光源产生的入射光束的路径中的第一偏振元件和设置在从第一偏振元件反射的光束的路径中的第二偏振元件。 第一偏振元件具有相对于第二偏振元件的光通量的入射角变化较小的偏振光分量透射特性，并且具有比第二偏振元件高的偏振光分量透射率， 第二偏振元件具有相对于光通量的入射角比第一偏振元件的入射角变化较小的s偏振光分量透射特性，并且具有比第一偏振元件低的s偏振光分量透射率 使得由光源产生的入射光束照射到第一偏振元件上，由第一偏振元件反射的光束主要由s偏振光分量组成，并且由第二偏振元件反射的光束由 基本上纯的s偏振光分量。
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4.发明授权
公开(公告)号：US5694182A
公开(公告)日：1997-12-02
申请号：US439195
申请日：1995-05-11
申请人： Yasuyuki Mitsuoka , Tadao Iwaki , Nobuyuki Kasama
发明人： Yasuyuki Mitsuoka , Tadao Iwaki , Nobuyuki Kasama
CPC分类号： G02F1/135
摘要： An optically addressed spatial light modulation system includes a ferroelectric liquid crystal spatial light modulator. A writing light source irradiates a writing light for recording an image onto the spatial light modulator. A read-out light source irradiates a bias light for adjusting the sensitivity of the spatial light modulator and a read-out light for reading a recorded image from the spatial light modulator. An adjusting circuit is used to adjust the bias light intensity or irradiation time in synchronism with the writing light to increase the sensitivity of the spatial light modulator. A driving circuit supplies writing voltage signals to the spatial light modulator. The irradiation times of the write light and the bias light overlap with the application of the writing voltage signals for a predetermined time for adjusting the sensitivity of the spatial light modulator.
摘要翻译： 光学寻址的空间光调制系统包括铁电液晶空间光调制器。 写入光源将用于将图像记录的写入光照射到空间光调制器上。 读出光源照射用于调整空间光调制器的灵敏度的偏置光和用于从空间光调制器读取记录图像的读出光。 调整电路用于与写入光同步地调整偏光强度或照射时间，以增加空间光调制器的灵敏度。 驱动电路向空间光调制器提供写入电压信号。 写入光和偏置光的照射时间与施加写入电压信号预定时间重叠，以调整空间光调制器的灵敏度。
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5.发明授权Optically addressed spatial light modulating system bias light source and method for driving the system 失效光学寻址空间光调制系统偏光源和驱动系统的方法
公开(公告)号：US5555115A
公开(公告)日：1996-09-10
申请号：US954316
申请日：1992-09-30
申请人： Yasuyuki Mitsuoka , Tadao Iwaki , Nobuyuki Kasama
发明人： Yasuyuki Mitsuoka , Tadao Iwaki , Nobuyuki Kasama
CPC分类号： G02F1/135
摘要： An optically addressed spatial light modulating system comprises a spatial light modulator using a liquid crystal material. A writing light irradiation device irradiates a writing light which records an image onto the spatial light modulator. A reading out light irradiation device irradiates a reading out light which is used to read out the recorded image from the spatial light modulator. A bias light irradiation device irradiates a bias light onto the spatial light modulator, and a bias light adjustment device changes at least one of the irradiation time and the light intensity of the bias light. A driving device supplies writing voltage signals to the spatial light modulator. The irradiation time of the write light and the irradiation time of the bias light overlap with the application time of the write voltage of the spatial light modulator for a predetermined amount of time for adjusting the sensitivity of the spatial light modulator. Thus, the changing of the recording sensitivity of the optically addressed spatial light modulator is facilitated. It is also possible to write data into the spatial light modulator operating at a high speed by changing the threshold of the write image and to record an image with low write light intensity.
摘要翻译： 光学寻址的空间光调制系统包括使用液晶材料的空间光调制器。 书写光照射装置将记录图像的写入光照射到空间光调制器上。 读出光照射装置照射用于从空间光调制器读出记录图像的读出光。 偏置光照射装置将偏光照射到空间光调制器上，偏置光调节装置改变偏光的照射时间和光强度中的至少一个。 驱动装置向空间光调制器提供写入电压信号。 写入光的照射时间和偏光的照射时间与用于调整空间光调制器的灵敏度的预定时间量的空间光调制器的写入电压的施加时间重叠。 因此，有助于光学寻址的空间光调制器的记录灵敏度的改变。 也可以通过改变写入图像的阈值并以低写入光强度记录图像来将数据写入高速操作的空间光调制器。
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6.发明授权Method for forming optical aperture, near-field optical head, method for fabricating near-field optical head, and information recording/reading apparatus 有权用于形成光学孔径的方法，近场光学头，用于制造近场光学头的方法以及信息记录/读取装置公开(公告)号：US07366060B2
公开(公告)日：2008-04-29
申请号：US11360279
申请日：2006-02-23
申请人： Takashi Niwa , Kenji Kato , Yasuyuki Mitsuoka , Manabu Oumi , Nobuyuki Kasama , Susumu Ichihara , Hidetaka Maeda , Yoko Shinohara
发明人： Takashi Niwa , Kenji Kato , Yasuyuki Mitsuoka , Manabu Oumi , Nobuyuki Kasama , Susumu Ichihara , Hidetaka Maeda , Yoko Shinohara
IPC分类号： G11B7/00
CPC分类号： G11B7/0937 , G01Q80/00 , G11B7/122 , G11B7/124 , G11B7/1387 , G11B7/22 , G11B11/1058
摘要： A near-field optical head has a main surface confronting a recording medium during use of the near-field optical head. A sharpened tip is disposed on the main surface and has an optical aperture at a front end thereof. An opaque film covers the sharpened tip and has a plastically deformed portion in the vicinity of the optical aperture. The front end of the sharpened tip projects from the plastically deformed portion of the opaque film. At least one stopper is disposed in the vicinity of the sharpened tip and has a height substantially equal to a height of the sharpened tip. At least one air-bearing surface is disposed on the main surface.
摘要翻译： 近场光学头在使用近场光学头期间具有面对记录介质的主表面。 锋利的尖端设置在主表面上并且在其前端具有光学孔。 不透明的膜覆盖尖锐的尖端并且在光学孔径附近具有塑性变形部分。 锋利尖端的前端从不透明膜的塑性变形部分突出。 至少一个止动件设置在尖锐尖端附近，并且具有与尖锐尖端的高度基本相等的高度。 至少一个空气轴承表面设置在主表面上。
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7.发明申请Optical microcantilever, manufacturing method thereof, and optical microcantilever holder 失效光学微悬臂梁，其制造方法和光学微悬臂梁支架公开(公告)号：US20070062266A1
公开(公告)日：2007-03-22
申请号：US11602373
申请日：2006-11-20
申请人： Takashi Niwa , Kenji Kato , Susumu Ichihara , Norio Chiba , Yasuyuki Mitsuoka , Manabu Oumi , Nobuyuki Kasama
发明人： Takashi Niwa , Kenji Kato , Susumu Ichihara , Norio Chiba , Yasuyuki Mitsuoka , Manabu Oumi , Nobuyuki Kasama
IPC分类号： G01B5/28
摘要： An optical microcantilever capable of reducing loss when propagating light. An optical microcantilever 10 comprises a support 1, an optical waveguide 2, a light-blocking film 3, a reflecting film 4, a pointed tip 5, a microscopic aperture 6 formed at the end of the tip 5, and a mirror 7 for reflecting propagating light H propagated from a light input/output end 8 of the optical waveguide 2 towards the microscopic aperture 6.
摘要翻译： 光学微悬臂梁能够在传播光时减少损耗。 光学微悬臂梁10包括支撑件1，光波导2，遮光膜3，反射膜4，尖端5，形成在尖端5的端部的微小孔6和反射镜 从光波导2的光输入/输出端8向微观孔6传播的传播光H。
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公开(公告)号：US20060120228A1
公开(公告)日：2006-06-08
申请号：US11340010
申请日：2006-01-24
申请人： Nobuyuki Kasama , Norio Chiba , Yasuyuki mitsuoka , Manabu Oumi , Kenji Kato , Takashi Niwa , Kunio Nakajima
发明人： Nobuyuki Kasama , Norio Chiba , Yasuyuki mitsuoka , Manabu Oumi , Kenji Kato , Takashi Niwa , Kunio Nakajima
IPC分类号： G11B7/00
CPC分类号： G11B7/0908 , B82Y10/00 , G11B7/127 , G11B7/1275 , G11B7/1387 , Y10S977/862 , Y10S977/947
摘要： In a recording apparatus for reproducing information recorded on a recording medium by utilizing near-field light, the recording apparatus realizes reliable information reproduction with a simple structure. Illumination light 20 is illuminated to the recording medium 10 to create near-field light on a surface of the recording medium 10. The created near-field light is scattered by a microscopic aperture 12 formed in the aperture element 11 so that scattering light (propagation light) thereof is detected to create a reproduced signal. Derived from the created reproduced light a distance control signal representative of a distance between the microscopic aperture 12 and the recording medium 10. Based on the distance control signal, the aperture element 11 is controlled in position. Due to this, the microscopic aperture 12 is brought into proximity to the recording medium 10.
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9.发明授权Method for forming optical aperture, near-field optical head, method for fabricating near-field optical head, and information recording/reading apparatus 有权用于形成光学孔径的方法，近场光学头，用于制造近场光学头的方法以及信息记录/读取装置公开(公告)号：US07032427B2
公开(公告)日：2006-04-25
申请号：US09872800
申请日：2001-06-02
申请人： Takashi Niwa , Kenji Kato , Yasuyuki Mitsuoka , Manabu Oumi , Nobuyuki Kasama , Susumu Ichihara , Hidetaka Maeda , Yoko Shinohara
发明人： Takashi Niwa , Kenji Kato , Yasuyuki Mitsuoka , Manabu Oumi , Nobuyuki Kasama , Susumu Ichihara , Hidetaka Maeda , Yoko Shinohara
CPC分类号： G11B7/0937 , G01Q80/00 , G11B7/122 , G11B7/124 , G11B7/1387 , G11B7/22 , G11B11/1058
摘要： In a method of producing an optical aperture, there is provided an object having a substrate, at least one conical- or pyramidal-shaped tip disposed on the substrate, at least one stopper disposed on the substrate in the vicinity of the tip and having a height substantially equal to a height of the tip, and an opaque film disposed at least on the tip. A pressing body is disposed relative to the object so that a surface of the pressing body is disposed over the tip and at least a portion of the stopper. The pressing body is then displaced to bring the surface of the pressing body into contact with the object so that a force component is directed to a front end of the tip to form an optical aperture at the front end of the tip.
摘要翻译： 在制造光学孔径的方法中，提供了一种具有基底的物体，至少一个设置在基底上的圆锥形或锥形末端，至少一个塞子，其设置在尖端附近的基底上，并具有 高度基本上等于尖端的高度，以及至少设置在尖端上的不透明膜。 按压体相对于物体设置，使得按压体的表面设置在尖端和止挡件的至少一部分上。 然后按压体移动以使按压体的表面与物体接触，使得力分量被引导到尖端的前端，以在尖端的前端形成光学孔。
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10.发明授权Optical waveguide probe and manufacturing method of the same, and scanning near-field optical microscope 失效光波导探头及其制造方法相同，并扫描近场光学显微镜公开(公告)号：US06744030B2
公开(公告)日：2004-06-01
申请号：US09837836
申请日：2001-04-18
申请人： Yasuyuki Mitsuoka , Takashi Niwa , Kenji Kato , Manabu Oumi , Nobuyuki Kasama , Susumu Ichihara
发明人： Yasuyuki Mitsuoka , Takashi Niwa , Kenji Kato , Manabu Oumi , Nobuyuki Kasama , Susumu Ichihara
IPC分类号： H01J314
CPC分类号： G01Q60/06 , G01Q60/22 , G02B6/241 , Y10S977/862
摘要： An optical waveguide probe is disclosed which is used for a scanning near-field optical microscope, has a low light propagation loss, and is capable of performing an AFM operation, and a manufacturing method thereof is disclosed. The vicinity of the tip of an optical waveguide 2 is bent toward a side of a probe portion 9 through a plurality of surfaces symmetrical with respect to a plane including an optical axis of the optical waveguide 2. By this, a loss of a propagated light 7 at a bent portion 10 is reduced, and the propagated light 7 can be condensed to a minute aperture 5, so that near-field light can be efficiently emitted from the minute aperture 5.
摘要翻译： 公开了一种用于扫描近场光学显微镜的光波导探针，具有低的光传播损耗，并且能够执行AFM操作，并且公开了其制造方法。 光波导2的尖端附近通过相对于包括光波导2的光轴的平面对称的多个表面朝向探针部分9的一侧弯曲。由此，传播光的损失 在弯曲部分10处的光线减少，并且传播的光7可以被冷凝到微小的光圈5，使得近场光可以从微小孔5有效地发射。
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