Reflecting telescope with two or three slanting mirrors
The first mirror (1,3) in the beam path is always a convex mirror. A four-mirror telescope with a folded beam course is formed by double use of both mirrors, e.g. two-mirror variant, and one mirror, e.g. three-mirror variant. Image distortions are compensated by the right selection of focal distance...
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| Format: | Patent |
| Sprache: | eng ; ger |
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| Zusammenfassung: | The first mirror (1,3) in the beam path is always a convex mirror. A four-mirror telescope with a folded beam course is formed by double use of both mirrors, e.g. two-mirror variant, and one mirror, e.g. three-mirror variant. Image distortions are compensated by the right selection of focal distances, distances between mirrors, tilt angles and by slight rotationally symmetrical deformations in the reflection surfaces. Mirror surface rims of non-circular shape or an oval optical aperture diaphragm are used. |
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