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Expired
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Optische Anstalt CP Goerz AG
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Optische Anstalt CP Goerz AG
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Application filed by Optische Anstalt CP Goerz AGfiledCriticalOptische Anstalt CP Goerz AG
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Publication of GB190625210ApublicationCriticalpatent/GB190625210A/en
25,210. Optische Anstalt C. P. Goerz Akt. - Ges. Nov. 25, 1905, [date applied for under Patents Act, 1901]. Telescopes.-The reversing system is made up of two positive lenses 4, 5, which can be placed in either of the three positions shown, between the focal planes 6 and 7 of the object-glass and eyepiece, respectively, to obtain different magnifying powers. The dispositions shown in Figs. 2 and 3 give the maximum and minimum powers, respectively. The system may be used in a telescope in which the axes of the objectglass and eyepiece are laterally displaced.
GB190625210D1905-11-251906-11-08Improvements in Telescopes
ExpiredGB190625210A
(en)
New or Improved Means for Preventing in Monocular Optical Instruments Fatigue of the Eye not used for Observation also applicable for Sighting or Measuring with said Instruments.