Flat field variable power rifle scope
A highly corrected anastigmat erector lens group is moved linearly to vary magnification and a field lens working in the virtual image range is moved non-linearly for focus compensation.
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A highly corrected anastigmat erector lens group is moved linearly to vary magnification and a field lens working in the virtual image range is moved non-linearly for focus compensation. |
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