Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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BARBIER RENARD TURENNE
Original Assignee
BARBIER RENARD TURENNE
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Filing date
Publication date
Application filed by BARBIER RENARD TURENNEfiledCriticalBARBIER RENARD TURENNE
Priority to FR7108365ApriorityCriticalpatent/FR2128183B1/fr
Priority to DE19722211715prioritypatent/DE2211715A1/de
Publication of FR2128183A1publicationCriticalpatent/FR2128183A1/fr
Application grantedgrantedCritical
Publication of FR2128183B1publicationCriticalpatent/FR2128183B1/fr
G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
G02B27/648—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake for automatically maintaining a reference alignment, e.g. in self-levelling surveying instruments