GB139437A - Improved process and apparatus for the correction of stereo-telemeters - Google Patents

Improved process and apparatus for the correction of stereo-telemeters

Info

Publication number
GB139437A
GB139437A GB2623919A GB2623919A GB139437A GB 139437 A GB139437 A GB 139437A GB 2623919 A GB2623919 A GB 2623919A GB 2623919 A GB2623919 A GB 2623919A GB 139437 A GB139437 A GB 139437A
Authority
GB
United Kingdom
Prior art keywords
prism
image plane
equal
registering device
telemeters
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
GB2623919A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2623919A priority Critical patent/GB139437A/en
Publication of GB139437A publication Critical patent/GB139437A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/10—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument
    • G01C3/14—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument with binocular observation at a single point, e.g. stereoscopic type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Telescopes (AREA)

Abstract

139,437. Benoit, A. Oct. 25, 1919. Range-finders; micrometer systems.-To avoid the creation of parallax between the image plane and the plane of the measuring marks, adjustment of the registering device acts also to connect the image plane. The shiftable registering device can be a traversing prism 8 or may comprise two equal prisms rotating equally in opposite senses. As shown, the prism 8 is rigidly connected to a wedge 5 which traverses, as the prism moves, in front of the equal and opposite wedges 4 on the inner faces of which are the measuring marks. In this way, a parallel-sided plate of varying thickness is arranged in front of the eyepieces. In modifications, additional lenses form the adjusting-devices,
GB2623919A 1919-10-25 1919-10-25 Improved process and apparatus for the correction of stereo-telemeters Expired GB139437A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2623919A GB139437A (en) 1919-10-25 1919-10-25 Improved process and apparatus for the correction of stereo-telemeters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2623919A GB139437A (en) 1919-10-25 1919-10-25 Improved process and apparatus for the correction of stereo-telemeters

Publications (1)

Publication Number Publication Date
GB139437A true GB139437A (en) 1920-03-04

Family

ID=10240503

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2623919A Expired GB139437A (en) 1919-10-25 1919-10-25 Improved process and apparatus for the correction of stereo-telemeters

Country Status (1)

Country Link
GB (1) GB139437A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511840A (en) * 1950-06-20 Self-compensating optical system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511840A (en) * 1950-06-20 Self-compensating optical system

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