Gerhard Schwesinger's scientific contributions
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Publications (2)
Under their own weight, large concave mirrors, such as used in telescopes and various research equipment, may elastically bend beyond tolerable limits. The problem of preventing harmful mirror deformations arises in full severity when gravity has a substantial component in the direction of the optical axis. The less serious case of gravity acting p...
Optical compensators of the rotating-plate principle are widely used for their simplicity in motion picture equipment of various types. Despite many attempts, little improvement of their optical performance has been achieved. Some competent proposals to this aim and their optical limitations are briefly discussed. A novel type of compound compensat...
Citations
... When the prism is supported by contact forces along its cylindrical boundary, the distribution of the forces usually depends on the specific support method to result in different deformations of the optical surface [25,26]. Regardless of the support method, the resulting boundary stresses can be decomposed into two force systems [27]. The first force system varies along the circumference; however, it is uniformly distributed across the cylindrical boundary shown in Fig. 2(a). ...
