| 摘要 |
In the method of producing a hologram for an object in which a beam illuminating the object and a reference beam produced by the same light source establish the hologram by interference in a hologram plate between the reference beam and light coming from the object, any inadvertent movement of the object during the exposure time is compensated out by conducting one of the beams over a reflecting surface in the form of a small mirror located on the object in such manner that the difference between the mean path lengths of the rays of the object illuminating beam and of the light from the object to the hologram plate on the one hand, and that of the reference beam on the other hand, remains substantially constant.
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