JPS49127657A - - Google Patents

Info

Publication number
JPS49127657A
JPS49127657A JP49028973A JP2897374A JPS49127657A JP S49127657 A JPS49127657 A JP S49127657A JP 49028973 A JP49028973 A JP 49028973A JP 2897374 A JP2897374 A JP 2897374A JP S49127657 A JPS49127657 A JP S49127657A
Authority
JP
Japan
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.)
Pending
Application number
JP49028973A
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 filed Critical
Publication of JPS49127657A publication Critical patent/JPS49127657A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
    • G01C5/02—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels involving automatic stabilisation of the line of sight
    • 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
JP49028973A 1973-03-13 1974-03-13 Pending JPS49127657A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7308943A FR2221788B1 (ja) 1973-03-13 1973-03-13

Publications (1)

Publication Number Publication Date
JPS49127657A true JPS49127657A (ja) 1974-12-06

Family

ID=9116207

Family Applications (1)

Application Number Title Priority Date Filing Date
JP49028973A Pending JPS49127657A (ja) 1973-03-13 1974-03-13

Country Status (8)

Country Link
US (1) US3910704A (ja)
JP (1) JPS49127657A (ja)
CH (1) CH584397A5 (ja)
DE (1) DE2410897C3 (ja)
FR (1) FR2221788B1 (ja)
GB (1) GB1464951A (ja)
IT (1) IT1009276B (ja)
SU (1) SU697060A3 (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043679A (en) * 1975-10-20 1977-08-23 Agl Corporation Self-leveling construction alignment laser
US4053238A (en) * 1975-10-20 1977-10-11 A G L Corporation Self-leveling construction alignment laser
US4149321A (en) * 1977-03-15 1979-04-17 Kivioja Lassi A Mercury leveling instruments
JPS60232502A (ja) * 1984-05-04 1985-11-19 Tokyo Optical Co Ltd 液体プリズム
CH673707A5 (ja) * 1987-07-24 1990-03-30 Kern & Co Ag
US4988193A (en) * 1989-03-01 1991-01-29 Spectra-Physics, Inc. Method and apparatus for measuring incident light angle relative to level
DE4028359C2 (de) * 1989-09-06 1994-05-19 Asahi Optical Co Ltd Bildstabilisierungseinrichtung
DE4110858A1 (de) * 1991-04-04 1992-10-08 Wild Heerbrugg Ag Zweiachsiger neigungsmesser
DE69313263T2 (de) * 1992-11-12 1998-03-19 Topcon Corp Automatischer neigungswinkelkompensator
DE19804606A1 (de) * 1997-10-27 1999-04-29 Lederer Stieve Stativ für Lasernivelliergeräte
CN109405797B (zh) * 2018-12-03 2024-01-09 大连圣博尔测绘仪器科技有限公司 方便调节i角的水准仪

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2386621A (en) * 1944-05-10 1945-10-09 Eastman Kodak Co Artificial horizon for sextants
US2876673A (en) * 1956-10-08 1959-03-10 Lockheed Aircraft Corp Plumbing mirror
FR1171765A (fr) * 1957-04-19 1959-01-29 Dispositif à réflexion pour instruments optiques et ses applications
US3044343A (en) * 1958-04-17 1962-07-17 Fontguyon Marie Pierre Poit De Optical instrument of the reflection type
US3520621A (en) * 1967-05-12 1970-07-14 Atomic Energy Commission Remote levelling measurement
US3583814A (en) * 1968-12-18 1971-06-08 Shumway Optical Instr Corp Optical level

Also Published As

Publication number Publication date
DE2410897A1 (de) 1974-09-19
IT1009276B (it) 1976-12-10
CH584397A5 (ja) 1977-01-31
FR2221788A1 (ja) 1974-10-11
DE2410897C3 (de) 1980-04-24
FR2221788B1 (ja) 1978-09-29
GB1464951A (en) 1977-02-16
SU697060A3 (ru) 1979-11-05
US3910704A (en) 1975-10-07
DE2410897B2 (de) 1977-05-26

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