Holography

Viewing a Transmission Hologram

观察传输全息图

Holography is lensless photography. The image is captured in the interference pattern on the film, and the image can be reconstructed for viewing by shining the coherent light of a laser on the hologram. The eye is focused behind the film to see the image suspended in space. It shows the unique characteristics of holographic images.

全息成像是一种无镜头摄影。图像是在胶片上的干涉图样中捕捉的，通过用激光的相干光照射全息图，可以重建图像以供观看。眼睛聚焦在胶片后方，以看到悬浮在空间中的图像。它展示了全息图像的独特特性。

A static view of the image of a transmission hologram is obtained by looking through a particular point on the hologram. If you move your head, you will be looking through a different point on the film, and will see the object from a different perspective. Since your two eyes will be looking through different points of the hologram, they will get slightly different perspectives, just as you do in looking at the real object.

通过特定点观察全息图像，可以得到静态的图像。如果你移动头部，就会通过 hologram 上的不同点观察，从而看到物体从不同的角度。由于两只眼睛会通过 hologram 的不同点观察，它们会获得略微不同的视角，就像你观察真实物体时一样。

View the original hologram movie (MOV) / 查看原始全息影片（MOV）

The movie at left was made by positioning the camera and then moving the hologram across the field of view with a carriage. The different perspectives would usually be obtained by moving your head back and forth while viewing the hologram. The movie may be played, or you can grab the slider at the bottom of the movie and move it backward or forward manually.

左边的电影是通过先定位相机，然后将全息图在视野中移动来制作的。通常，通过在观看全息图时来回移动头部来获得不同的视角。这部电影可以播放，或者你可以抓住电影底部的滑块，手动将其向后或向前移动。