真彩色动感全息图

提出了用单色激光器制作真彩色动感全息图的方法。该方法用三色光栅相机将景物的彩色信息记录在一张透明片上，并使用散射参光法一次曝光合成一幅真彩色全息图。对从不同观察角度所拍摄的透明片进行多次全息曝光并记录在同一张全息片上，可在普通白炽灯下看到景物的真彩色动感全息像。采用散射光作为参考光记录全息片，大大降低了相干噪声。一次曝光记录一幅真彩色全息图，不仅使透明片数量和曝光次数减少为分色记录的1／3，而且消除了由分色记录三次曝光所带来的颜色分离，增加了彩色像的真实感和清晰度。

True color moving holography

A method of making true color moving holograms with one-wavelength laser is proposed in the paper. With this method, the color information of scenery is recorded on a transparent film by a tri-color grating camera and then synthesized into a true color hologram with scattering reference light in a single-exposure. If multiply expose the object from different angles on a same film, a true color moving hologram image can be viewed in a common incandescent lamp. The application of a scattering light as reference light in making holograms reduces the coherent noise of chromatic aberration greatly. One single exposure records a true color hologram, which not only reduces the number of transparent film and the duration of holographic exposure to 1/3 of other methods, but also avoids color separation resulted from color process and enhances the sense of reality and definition