FR1209229A - Automatic level - Google Patents

Automatic level

Info

Publication number
FR1209229A
FR1209229A FR1209229DA FR1209229A FR 1209229 A FR1209229 A FR 1209229A FR 1209229D A FR1209229D A FR 1209229DA FR 1209229 A FR1209229 A FR 1209229A
Authority
FR
France
Prior art keywords
automatic level
automatic
level
Prior art date
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.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
H MORIN ETS
Original Assignee
H MORIN ETS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by H MORIN ETS filed Critical H MORIN ETS
Application granted granted Critical
Publication of FR1209229A publication Critical patent/FR1209229A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR1209229D 1958-07-05 1958-07-05 Automatic level Expired FR1209229A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1209229T 1958-07-05

Publications (1)

Publication Number Publication Date
FR1209229A true FR1209229A (en) 1960-02-29

Family

ID=9674678

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1209229D Expired FR1209229A (en) 1958-07-05 1958-07-05 Automatic level

Country Status (1)

Country Link
FR (1) FR1209229A (en)

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