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    • 5. 发明授权
    • Computer aided holography and holographic computer graphics
    • 计算机辅助全息和全息计算机图形学
    • US4778262A
    • 1988-10-18
    • US137179
    • 1987-12-23
    • Kenneth A. Haines
    • Kenneth A. Haines
    • G03H1/16G03H1/26G03H1/08
    • G03H1/26G03H1/16G03H1/0808G03H1/0891G03H2001/0428G03H2001/2685
    • Methods for generating holograms from a computer model of any object using a combination of numerical and optical means and the holograms produced thereby. An illumination model is provided to specify sources of light rays and dispersion particles of the object. Each light ray being specified by a path and an intensity function is traceable from a source via the object to a set of points in space by the computer. The hologram is synthesized from a plurality of smaller hologram elements. Each individual element sustains a field of view of the object. The light rays from the object lying within the field of view and along the lines of sight are sampled by the computer. Optical means are employed to physically reproduce the sampled light rays using coherent radiation. The reproduced coherent light rays are then interfered with a coherent reference beam to form the hologram element. Alternatively, the hologram elements are calculated by the computer with an analogous technique.
    • 使用数字和光学手段的组合的任何物体的计算机模型和由此产生的全息图产生全息图的方法。 提供照明模型来指定物体的光线和分散粒子的来源。 通过路径和强度函数指定的每条光线可以从源通过对象追溯到计算机在空间中的一组点。 全息图由多个较小的全息元件合成。 每个单独的元素维持对象的视野。 来自位于视野内且沿着视线的对象的光线被计算机采样。 使用光学装置来使用相干辐射来物理地再现采样的光线。 然后,再现的相干光线被干涉相干参考光束以形成全息元件。 或者,全息元件由计算机以类似技术计算。
    • 6. 发明授权
    • Computer aided holography and holographic computer graphics
    • 计算机辅助全息和全息计算机图形学
    • US5194971A
    • 1993-03-16
    • US609813
    • 1990-11-06
    • Kenneth A. Haines
    • Kenneth A. Haines
    • G03H1/04G03H1/08G03H1/16G03H1/26
    • G03H1/0406G03H1/08G03H1/0891G03H1/16G03H1/268G03H1/0808G03H2001/0428G03H2001/2685
    • Methods for generating holograms from a computer model of any object employ a combination of numerical and optical means. An illumination model and the light dispersion properties of the object are specified. The hologram is synthesized from a plurality of smaller hologram elements. Each individual element sustains a field of view of the object. The light rays from the object lying within the field of view and along the lines of sight are sampled by the computer. The sample density should not exceed the resolution limit set by the size of the hologram element. Each light ray is specified by a direction and an amplitude function. The hologram element is obtainable from a Fourier Transform fo the sampled rays. In one embodiment, optical means are employed to physically reproduce the sampled light rays using coherent radiation. The reproduced coherent light rays are then interfered with a coherent reference beam to form the hologram element. Alternatively, the interference pattern is calculated directly by the computer and is printed to form the hologram element.
    • 从任何物体的计算机模型生成全息图的方法采用数值和光学方式的组合。 指定对象的照明模型和光散射特性。 全息图由多个较小的全息元件合成。 每个单独的元素维持对象的视野。 来自位于视野内且沿着视线的对象的光线被计算机采样。 样品密度不应超过全息元件尺寸设定的分辨率极限。 每个光线由方向和幅度函数指定。 全息元件可以从采样光线的傅立叶变换获得。 在一个实施例中,使用光学装置来使用相干辐射来物理地再现采样的光线。 然后,再现的相干光线被干涉相干参考光束以形成全息元件。 或者,干涉图案由计算机直接计算并被打印以形成全息元件。