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公开(公告)号：US20080316590A1
公开(公告)日：2008-12-25
申请号：US12142428
申请日：2008-06-19
IPC分类号： G02F1/377
CPC分类号： G02F1/3775 , G02F2001/3503 , G02F2001/3507 , G02F2201/16
摘要： A short wavelength light source is provided with a fundamental wave light source for generating a fundamental wave, and a plurality of wavelength conversion elements made of nonlinear optical crystals having periodic polarization-inversion structures and adapted to convert a part of the fundamental wave into a second harmonic, and the nonlinear optical crystals of the plurality of wavelength conversion elements are different in material or composition. By converting the fundamental wave from the fundamental wave light source by the plurality of wavelength conversion elements, the generation of a thermal lens effect caused by light absorption can be suppressed to improve a high output resistance.
摘要翻译： 短波长光源设置有用于产生基波的基波光源，以及由具有周期性极化反转结构的非线性光学晶体制成的多个波长转换元件，并且适于将基波的一部分转换成第二 谐波，并且多个波长转换元件的非线性光学晶体的材料或组成不同。 通过由多个波长转换元件转换基波光源的基波，可以抑制由光吸收引起的热透镜效应的产生，从而提高高的输出电阻。
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公开(公告)号：US20080158512A1
公开(公告)日：2008-07-03
申请号：US11884751
申请日：2006-02-24
CPC分类号： G03B21/208 , G02B5/3083 , G03B21/2033 , G03B21/2073 , G03B33/12 , G03B33/14 , H04N9/3129 , H04N9/3161
摘要： A two-dimensional image formation device of the present invention is provided with a spatial light modulation element (7) for modulating light having a linear polarization and emitted from a laser light source (1), and a depolarization means (21) for depolarizing the modulated light before it is incident on an image display surface. The light having a linear polarization is used before and after incidence of irradiated light to the spatial light modulation element (7), and the linear polarization of the irradiated light is depolarized after the modulation, whereby randomly polarized light is projected on a screen (11). Thereby, speckle noise is significantly reduced, and a high-definition image can be formed.
摘要翻译： 本发明的二维图像形成装置设置有用于调制具有线偏振光并从激光光源发射的光的空间光调制元件（7），以及去极化装置（21），用于使 调制光在其入射到图像显示表面之前。 具有线偏振的光在照射光入射到空间光调制元件（7）之前和之后使用，并且在调制之后照射光的线偏振被去极化，从而随机偏振光投射在屏幕（11）上 ）。 因此，斑点噪声显着降低，并且可以形成高清晰度图像。
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53.发明申请公开(公告)号：US20050111335A1
公开(公告)日：2005-05-26
申请号：US10969919
申请日：2004-10-22
IPC分类号： G11B7/00 , G11B7/0065 , G11B7/13
CPC分类号： G11B7/131 , G11B7/0065
摘要： A holographic optical information playback apparatus for playing information that is recorded on a recording medium in a form of interference fringes is provided with a two-dimensional photoreceptor array which receives a two-dimensional array of light spots that is diffracted at the recording medium due to application of reference light onto the medium, and outputs a playback signal including information recorded on the recording medium. The two-dimensional photoreceptor array has a photoreceptor section in which plural photoreceptor cells for detecting the intensities of received lights are arranged so that a photoreceptive area corresponding to the light spot array is formed, and assigns plural photoreceptor cells are assigned to each light spot in the light spot array according to the irradiation position of the light spot array, whereby the light intensity of one light sport is detected using the output signals from the plural photoreceptor cells.
摘要翻译： 用于播放以干涉条纹形式记录在记录介质上的信息的全息光学信息重放设备设置有二维感光体阵列，其接收在记录介质处衍射的光点的二维阵列，因为由于 将参考光施加到介质上，并输出包括记录在记录介质上的信息的重放信号。 二维感光体阵列具有感光体部，其中配置有用于检测接收光的强度的多个感光体细胞，使得形成与光点阵列对应的感光区域，并将多个感光体细胞分配给每个光点 根据光点阵列的照射位置的光点阵列，由此使用来自多个感光体单元的输出信号来检测一次光线运动的光强度。
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公开(公告)号：US06549346B2
公开(公告)日：2003-04-15
申请号：US09982278
申请日：2001-10-17
申请人： Hidenori Wada , Keiichi Matsuzaki , Seiji Nishino , Tetsuo Saimi , Kenichi Kasazumi , Masanari Mohri
发明人： Hidenori Wada , Keiichi Matsuzaki , Seiji Nishino , Tetsuo Saimi , Kenichi Kasazumi , Masanari Mohri
IPC分类号： G02B702
摘要： An objective lens assembly includes: at least two groups of lenses having a common optical axis: and at least two lens holders for respectively holding the at least two groups of lenses, wherein each of the lens holders has an end face perpendicular to the optical axis, and the lens holders are positioned such that the end face of one of the lens holders faces the end face of the other lens holder, and a gap between these end faces is filled with an adhesive agent for adhering the lens holders to each other.
摘要翻译： 物镜组件包括：具有共同的光轴的至少两组透镜;以及用于分别保持至少两组透镜的至少两个透镜保持器，其中每个透镜保持器具有垂直于光轴的端面 并且透镜保持器定位成使得其中一个透镜保持器的端面面对另一个透镜保持器的端面，并且这些端面之间的间隙填充有用于将透镜保持器彼此粘合的粘合剂。
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公开(公告)号：US6115345A
公开(公告)日：2000-09-05
申请号：US888529
申请日：1997-07-07
CPC分类号： B82Y10/00 , G06K7/10831 , G11B11/10543 , G11B7/123 , G11B7/131 , G11B7/1353 , G11B7/1367 , G11B7/1369 , G11B7/1387 , G11B7/1395 , G06K2207/1013 , G11B2007/13727
摘要： A linearly polarized light beam emitted from a coherent light source reaches a polarizing phase plate and is thereby divided into a primary beam and a subsidiary beam having a polarized light component perpendicular to the polarized light component of the primary beam and a double-humped pattern, in which the center position coincides with the center position of the primary beam and the principal portion is equal in size to the principal portion of the primary beam. The primary beam and the subsidiary beam are focused onto an information storage surface of an optical disk and reflected therefrom, so that they are separated again through polarization separation and individually detected by first to third optical detectors. The output signals from the first to third optical detectors are calculated by a differential calculator and outputted therefrom.
摘要翻译： 从相干光源发射的线偏振光束到达偏振相位板，从而分为初级光束和具有垂直于主光束的偏振光分量的偏振光分量的辅助光束和双峰值图案， 其中中心位置与主光束的中心位置一致，并且主要部分的大小与主光束的主要部分相等。 主光束和辅助光束被聚焦到光盘的信息存储表面上并从其反射，使得它们通过偏振分离再次分离并且由第一至第三光学检测器单独检测。 来自第一至第三光学检测器的输出信号由差分计算器计算并输出。
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公开(公告)号：US20120147334A1
公开(公告)日：2012-06-14
申请号：US13391702
申请日：2011-06-20
IPC分类号： G03B21/14
CPC分类号： G02B13/007 , G02B27/0933 , G02B27/141 , G02B27/48 , G03B21/14 , G03B21/2006 , G03B21/2033 , G03B21/208 , H04N9/3161 , H04N9/3164
摘要： There is provided a laser projector, including: a laser source section for emitting laser beams; a spatial light modulator which modulates the laser beams to generate image light; a projector lens from which the image light is emitted; a beam shaper which shapes the laser beams into a shape of the spatial light modulator; and a pupil uniformizer which makes a light intensity distribution uniform at an exit pupil of the projector lens, wherein the pupil uniformizer is situated between the laser source section and the beam shaper.
摘要翻译： 提供了一种激光投影仪，包括：用于发射激光束的激光源部分; 调制激光束以产生图像光的空间光调制器; 投射透镜，其中发射图像光; 光束整形器，其将激光束成形为空间光调制器的形状; 以及在投影透镜的出射光瞳上使光强分布均匀的瞳孔均匀器，其中瞳孔均匀器位于激光源部分和光束整形器之间。
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公开(公告)号：US20100231862A1
公开(公告)日：2010-09-16
申请号：US12293668
申请日：2007-03-22
CPC分类号： G02B27/0994 , G02B19/0028 , G02B19/0057 , G02B19/009 , G03B21/2013 , G03B21/2033 , G03B21/2053 , H01S3/005 , H01S3/2383 , H01S5/4012 , H04N9/3129 , H04N9/3161
摘要： Miniaturization is realized and high-output lights are obtained by optimizing the arrangement of a laser light source unit and a homogenizer.A laser light source unit 1 has a light emission region for emitting an elliptical laser light. A focusing lens unit 2 focuses the laser light emitted from the laser light source unit 1. A rod integrator 4 has a rectangular incident surface on luminous flux focused by the focusing lens unit 2. A spatial light modulation element 7 modulates the laser light emitted from the rod integrator 4. A projection lens 8 projects the laser light modulated by the spatial light modulation element 7. The incident surface of the rod integrator 4 has a rectangular shape, and the laser light source unit 1 is arranged such that a longer axis direction of the light emission region and a longer side direction of the incident surface of the rod integrator are parallel.
摘要翻译： 实现小型化，通过优化激光光源单元和均化器的布置来获得高输出光。 激光光源单元1具有用于发射椭圆激光的发光区域。 聚焦透镜单元2对从激光光源单元1发射的激光进行聚焦。杆状积分器4在由聚焦透镜单元2聚焦的光束上具有矩形入射面。空间光调制元件7调制从 棒状积分器4.投影透镜8投影由空间光调制元件7调制的激光。杆积分器4的入射面具有矩形形状，并且激光光源单元1被布置成使得长轴方向 的发光区域和杆状积分器的入射面的长边方向平行。
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公开(公告)号：US07738162B2
公开(公告)日：2010-06-15
申请号：US12142428
申请日：2008-06-19
IPC分类号： G02F1/35
CPC分类号： G02F1/3775 , G02F2001/3503 , G02F2001/3507 , G02F2201/16
摘要： A short wavelength light source is provided with a fundamental wave light source for generating a fundamental wave, and a plurality of wavelength conversion elements made of nonlinear optical crystals having periodic polarization-inversion structures and adapted to convert a part of the fundamental wave into a second harmonic, and the nonlinear optical crystals of the plurality of wavelength conversion elements are different in material or composition. By converting the fundamental wave from the fundamental wave light source by the plurality of wavelength conversion elements, the generation of a thermal lens effect caused by light absorption can be suppressed to improve a high output resistance.
摘要翻译： 短波长光源设置有用于产生基波的基波光源，以及由具有周期性极化反转结构的非线性光学晶体制成的多个波长转换元件，并且适于将基波的一部分转换成第二 谐波，并且多个波长转换元件的非线性光学晶体的材料或组成不同。 通过由多个波长转换元件转换基波光源的基波，可以抑制由光吸收引起的热透镜效应的产生，从而提高高的输出电阻。
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59.发明申请2-DIMENSIONAL IMAGE DISPLAY DEVICE, ILLUMINATION LIGHT SOURCE AND EXPOSURE ILLUMINATION DEVICE 有权二维图像显示装置，照明光源和曝光照明装置公开(公告)号：US20100020291A1
公开(公告)日：2010-01-28
申请号：US11917986
申请日：2006-06-15
IPC分类号： G03B21/14
CPC分类号： G02B27/149 , G02B17/004 , G02B26/0808 , G02B27/0905 , G02B27/0933 , G02B27/0944 , G02B27/102 , G02B27/1046 , G02B27/1093 , G02B27/145 , G03B21/14 , G03B21/2033 , G03B21/208 , G03B33/12 , H04N9/3161
摘要： A 2-dimensional beam scan unit (2) reflects emission beams from a red laser light source (1a), a green laser light source (1b) and a blue laser light source (1c) and scans in a 2-dimensional direction. Diffusion plates (3a, 3b, 3c) diffuse the respective light beams scanned in the 2-dimensional direction to introduce them to corresponding spatial light modulation elements (5a, 5b, 5c). The respective spatial light modulation elements (5a, 5b, 5c) modulate the respective lights in accordance with video signals of the respective colors. A dichroic prism (6) multiplexes the lights of the three colors after the modulation and introduces the multiplexed lights to a projection lens (7) so that a color image is displayed on a screen (8). Since the 2-dimensional light emitted from the beam scan unit is diffused to illuminate the spatial light modulation element, it is possible to change the optical axis of the beam emerging from the light diffusion member for irradiating the spatial light modulation element moment by moment, thereby effectively suppressing speckle noise.
摘要翻译： 二维光束扫描单元（2）反射来自红色激光光源（1a），绿色激光光源（1b）和蓝色激光光源（1c）的发射光束，并在二维方向扫描。 扩散板（3a，3b，3c）扩散在二维方向上扫描的各个光束，将它们引入相应的空间光调制元件（5a，5b，5c）。 各个空间光调制元件（5a，5b，5c）根据各种颜色的视频信号调制各个光。 分色棱镜（6）在调制之后复用三种颜色的光，并将多路复用的光引入投影透镜（7），使得彩色图像显示在屏幕（8）上。 由于从射束扫描单元发射的二维光被散射以照射空间光调制元件，所以可以改变从光漫射构件出射的用于照射空间光调制元件的光束的光轴， 从而有效抑制斑点噪声。
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公开(公告)号：US20090316115A1
公开(公告)日：2009-12-24
申请号：US12409625
申请日：2009-03-24
申请人： Tatsuo ITOH , Kenichi Kasazumi
发明人： Tatsuo ITOH , Kenichi Kasazumi
CPC分类号： G02B27/0172 , G02B27/0093 , G02B27/40
摘要： An image display apparatus and an image display method, by which a desired image formation state on a retina can be constantly maintained, are provided. Thus, the image display apparatus of the present invention includes a laser light source for emitting laser light; a focus position adjustment section for adjusting a focus position, of the laser light by adjusting a spread angle of the laser light emitted by the laser light source; a scanning section for scanning a predetermined to-be-scanned area by using the laser light adjusted by the focus position adjustment section as scanning light; a light deflection section disposed at the predetermined to-be-scanned area for leading the scanning light to a cornea of the user; a light detection section disposed at a position where the light detection section has an optically conjugate relation with a surface of the cornea through the light deflection section, for detecting a part the scanning light reflected on the surface of the cornea and generating a detection signal; and a control section for controlling the laser light source, the focus position adjustment section, and the scanning section, The control section controls the focus position adjustment section to adjust the focus position of the laser light such that the detection signal generated by the light detection section agrees with an initial setting signal that is set in advance by the light detection section during an initial setting operation.
摘要翻译： 提供了可以持续保持视网膜上期望的图像形成状态的图像显示装置和图像显示方法。 因此，本发明的图像显示装置包括用于发射激光的激光源; 聚焦位置调整部分，用于通过调节由激光光源发射的激光的扩展角来调节激光的聚焦位置; 扫描部，用于通过使用由所述聚焦位置调整部调节的激光作为扫描光来扫描预定的被扫描区域; 设置在预定的被扫描区域的光偏转部，用于将扫描光导向用户的角膜; 光检测部，其设置在所述光检测部通过所述光偏转部与所述角膜的表面具有光学共轭关系的位置，用于检测在所述角膜的表面上反射的扫描光的一部分，并生成检测信号; 控制部，控制激光光源，聚焦位置调整部和扫描部。控制部控制对焦位置调整部，调整激光的聚焦位置，使得由光检测产生的检测信号 部分与在初始设置操作期间由光检测部分预先设置的初始设置信号一致。
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