GB1394453A - Optical instruments - Google Patents

Optical instruments

Info

Publication number
GB1394453A
GB1394453A GB246373A GB246373A GB1394453A GB 1394453 A GB1394453 A GB 1394453A GB 246373 A GB246373 A GB 246373A GB 246373 A GB246373 A GB 246373A GB 1394453 A GB1394453 A GB 1394453A
Authority
GB
United Kingdom
Prior art keywords
reflected
light
prism
liquid
film
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
GB246373A
Other languages
English (en)
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.)
Rank Organization Ltd
Original Assignee
Rank Organization Ltd
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 Rank Organization Ltd filed Critical Rank Organization Ltd
Priority to GB246373A priority Critical patent/GB1394453A/en
Priority to CH759273A priority patent/CH557545A/xx
Priority to FR7319151A priority patent/FR2189760B1/fr
Priority to JP5827573A priority patent/JPS4951975A/ja
Priority to DE19732327157 priority patent/DE2327157A1/de
Publication of GB1394453A publication Critical patent/GB1394453A/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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Measurement Of Optical Distance (AREA)
GB246373A 1972-05-26 1973-01-17 Optical instruments Expired GB1394453A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB246373A GB1394453A (en) 1972-05-26 1973-01-17 Optical instruments
CH759273A CH557545A (de) 1972-05-26 1973-05-25 Optisches instrument mit einem fluessigkeitsspiegel.
FR7319151A FR2189760B1 (enrdf_load_stackoverflow) 1972-05-26 1973-05-25
JP5827573A JPS4951975A (enrdf_load_stackoverflow) 1972-05-26 1973-05-26
DE19732327157 DE2327157A1 (de) 1972-05-26 1973-05-28 Spiegelsystem fuer ein optisches instrument

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2496172 1972-05-26
GB246373A GB1394453A (en) 1972-05-26 1973-01-17 Optical instruments

Publications (1)

Publication Number Publication Date
GB1394453A true GB1394453A (en) 1975-05-14

Family

ID=26237534

Family Applications (1)

Application Number Title Priority Date Filing Date
GB246373A Expired GB1394453A (en) 1972-05-26 1973-01-17 Optical instruments

Country Status (5)

Country Link
JP (1) JPS4951975A (enrdf_load_stackoverflow)
CH (1) CH557545A (enrdf_load_stackoverflow)
DE (1) DE2327157A1 (enrdf_load_stackoverflow)
FR (1) FR2189760B1 (enrdf_load_stackoverflow)
GB (1) GB1394453A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4993162A (en) * 1987-07-24 1991-02-19 Kern & Co. Ltd. Apparatus for measuring inclinations of a component

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106679629B (zh) * 2017-01-13 2021-03-23 西南交通大学 一种基于光栅衍射的尺式水平仪及测量斜面倾角的方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR874021A (fr) * 1940-07-31 1942-07-27 Niveau topographique à ligne de mire automatiquement horizontale
US2857804A (en) * 1955-03-04 1958-10-28 Zeiss Carl Interferometer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4993162A (en) * 1987-07-24 1991-02-19 Kern & Co. Ltd. Apparatus for measuring inclinations of a component

Also Published As

Publication number Publication date
FR2189760B1 (enrdf_load_stackoverflow) 1976-04-23
CH557545A (de) 1974-12-31
DE2327157A1 (de) 1973-12-06
JPS4951975A (enrdf_load_stackoverflow) 1974-05-20
FR2189760A1 (enrdf_load_stackoverflow) 1974-01-25

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee