Transmission Hologram Setup
传输全息设置
This is a photo of a setup used for making transmission holograms with a helium-neon laser. The film is sandwiched between glass plates as shown, with the objects in front of the plates. The laser beam is spread by a spherical lens of about 3 mm diameter, shown as the red glow at the left of the photo. The object used here consists of a small plastic soldier, a lens and some coins.
这张照片展示了一个用于使用氦氖激光制作透射全息图的装置。胶片被夹在两块玻璃板之间，如图所示，物体位于板的前面。激光束通过一个直径约3毫米的球形透镜展开，显示为照片左侧的红色光晕。这里使用的物体包括一个小塑料士兵、一个透镜和一些硬币。
On the glass plates can be seen part of the interference pattern. The film records the interference pattern between the reference light from the laser and the reflected light from the objects.
在玻璃板上可以看见干涉图样的一部分。薄膜记录了来自激光的参考光与物体反射光之间的干涉图样。
索引
HyperPhysics ***** 物理学 391 ***** 全息术
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