| 摘要 |
A system for imaging through a tilted plane parallel plate, in which image quality is improved by inserting additional transparent plates between an object that is imaged and the imaging lens, includes at least two plates of preferably identical thickness and material to that of the plate through which the object is imaged. The plates are tilted by appropriate angles around tilt axes that are orthogonal to the optical axis of the lens. The tilt axes themselves are rotated around the optical axis with respect to each other. The invention greatly improves the image quality when imaging through a tilted plane parallel plate. The preexisting optical system remains rotationally symmetric except for the plates inserted therein. Such plane plates are readily manufacturable at reasonable cost, and they require only noncritical alignment within the system.
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