GB129881A - Improvements in Rangefinders and Heightfinders. - Google Patents

Improvements in Rangefinders and Heightfinders.

Info

Publication number
GB129881A
GB129881A GB1664518A GB1664518A GB129881A GB 129881 A GB129881 A GB 129881A GB 1664518 A GB1664518 A GB 1664518A GB 1664518 A GB1664518 A GB 1664518A GB 129881 A GB129881 A GB 129881A
Authority
GB
United Kingdom
Prior art keywords
range
height
stroud
barr
frame
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
GB1664518A
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.)
Thales Optronics Ltd
Original Assignee
Thales Optronics 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 Thales Optronics Ltd filed Critical Thales Optronics Ltd
Priority to GB1664518A priority Critical patent/GB129881A/en
Publication of GB129881A publication Critical patent/GB129881A/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
    • G01C3/20—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 adaptation to the measurement of the height of an object

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

129,881. Barr & Stroud, Barr, A., and Stroud, W. Oct. 12, 1918, Range-finders.-In a short-home base rangefinder or height-finder in which the mechanism employed to find the range or height comprises a defecting prism movable along one of the beams of light, a mechanism frame is provided which carries the principal parts that are moved in finding a range or height, the said mechanism frame being free from contact with the frame 11 carrying the objective and eyepiece prisms, and consisting of two or more cross-pieces 9, 10 carried from the outer tube 14 and connected by parts 3, 5, one or more of which serves as a guide for the deflecting prism 1.
GB1664518A 1918-10-12 1918-10-12 Improvements in Rangefinders and Heightfinders. Expired GB129881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1664518A GB129881A (en) 1918-10-12 1918-10-12 Improvements in Rangefinders and Heightfinders.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1664518A GB129881A (en) 1918-10-12 1918-10-12 Improvements in Rangefinders and Heightfinders.

Publications (1)

Publication Number Publication Date
GB129881A true GB129881A (en) 1919-07-24

Family

ID=32347248

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1664518A Expired GB129881A (en) 1918-10-12 1918-10-12 Improvements in Rangefinders and Heightfinders.

Country Status (1)

Country Link
GB (1) GB129881A (en)

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