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Laser rangefinders are used in golf to measure the yardage of a particular shot but also to gauge slope and wind as well. There has been debate over whether they should be allowed in tournaments. While their use is banned on the professional level, they are becoming widely used on the amateur level.
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crossing an upright hair. At the point to be measured, two sliding targets on a surveyor's rod were adjusted to align with the hairs in the telescope. The distance to the rod could then be determined from the distance between the targets on the rod by trigonometry.
253:. Solutions can be obtained automatically, using tables or, rarely, manual calculation. The greater the distance to the target, the longer the baseline needs to be for accurate measurement. Modern rangefinders use an electronic technology such as
249:-era rangefinders worked optically with two telescopes focused on the same target but a distance apart along a baseline. The range to the target is found by measuring the difference in bearing of the two telescopes and solving the
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but located at the measuring station, and forming two images. This rangefinder does not require a measuring rod at the target and could perhaps be considered the first true telemeter. In 1790
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90:, they soon found applications in other fields, such as photography, the military, and space travel. They were especially useful for finding the range of a target, such as in
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over long distances, to measure the distance to a target to allow for projectile drop. Until the development of electronic means of measuring range during the
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A long-range laser rangefinder is capable of measuring distance up to 20 km; mounted on a tripod with an angular mount. The resulting system also provides
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in 1769 and put to use in 1771 in surveying canals. Watt called his instrument a micrometer, a term now used with a different meaning in engineering (the
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is often mistakenly credited with the invention, he did invent an improved rangefinder with fixed lenses in 1821 and is responsible for coining the term.
228:. It used the measurement of the angle of depression from the observer, sited on a high vantage point, to the waterline of the target vessel.
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683:(revision and redesignation of "ANSI PH3.619-1988" as "ANSI/PIMA IT3.619-1998") American National Standards Institute, New York,
568:"Golf Rangefinder Comparison Chart at Golfsmith." Golf Rangefinder Comparison Chart at Golfsmith. N.p., n.d. Web. 06 Nov. 2014.
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American national standard for photography (optics) : rangefinders and other focusing aids – performance specifications
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and other techniques are often used instead. Laser rangefinders are sometimes classified as type of handheld scannerless
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383:, warships used very large optical rangefinders—with a baseline of many meters—to measure range for naval gunnery.
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716:, Infantry and Cavalry School Lectures 1902-1910, Staff College Press, U.S. Army, Fort Leavenworth, Kansas, 1905,
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Several others have been credited with the invention of the rangefinder telemeter at one time or another. The
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gave an award to W. Green for its invention in 1778, even though they were made aware of Watt's priority.
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553:, Hector Alexander de Grousilliers, "Improved Stereoscopic Telemeter.", issued 1894-07-14
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Rangefinders are used for surveying in forestry. Special devices with anti-leaf filters are used.
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Range-Finding in the Army. How to use range-finders to get results: the erect and inverted types,
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taken by the pulse to be reflected off the target and returned to the sender. Due to the high
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Notes on rangefinders, compasses and on contouring with the Scale of
Horizontal Equivalents
321:, this technique is not appropriate for high precision sub-millimeter measurements, where
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principle by sending a laser pulse in a narrow beam towards the object and measuring the
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657:"Range Finder (instrument)." Encyclopædia Britannica Online. Encyclopædia Britannica,
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Army Test and
Evaluation Command, Aberdeen Proving Ground Maryland (1969)
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to an object. The most common form of laser rangefinder operates on the
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577:"While We're Young, USGA." Golf.com. N.p., n.d. Web. 06 Nov. 2014.
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monthly, February 1919, page 118–120, Scanned by Google Books
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Rangefinder
Comparison - A National Forest Service document
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Photographic and
Imaging Manufacturers Association (1999)
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The
Optical Munitions Industry in Great Britain, 1888–1923
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according to distance, and correcting aim of a projectile
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systems to detect operator movements and locate objects.
243:, based on a patent of Hector Alexander de Grousilliers.
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Transactions of the
Institute of Measurement and Control
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Archiv für
Geographie, Historie, Staats- und Kriegskunst
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to remote objects. Originally optical devices used in
676:(early history of the use of lasers in rangefinders)
492:, vol. 13, Franz Härter: Wien, page 561 (in German)
16:Device used to measure distances to remote objects
763:, Berkeley Nucleonics Corporation, archived from
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399:Since the 1990s, rangefinders have been used in
166:The first rangefinder telemeter was invented by
82:, depending on the context) is a device used to
64:Second World War German range finding tower at
737:Further considerations of defocus rangefinders
794:Length, distance, or range measuring devices
695:Rangefinder: Equipment, History, Techniques
209:invented a half-image range finder. Though
30:Portable stereoscopic rangefinder from WWII
469:, vol. 8, page 121, Stuttgart: Cotta 1822
693:Hicks, Roger and Schultz, Frances (2003)
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760:Electro Optic Application Test Equipment
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297:, also known as a laser telemeter, is a
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697:Guild of Master Craftsman, Lewes, UK,
590:Zenith Press, Grand Rapids, Michigan,
123: 'distant, far away' and
731:on 2016-03-03 – via archive.org
375:Rangefinders may be used by users of
668:, U.S. Army, Ft. Belvoir, Virginia,
666:Defense Technical Information Center
508:. Taylor & Francis. p. 27.
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586:Farey, Pat and Spicer, Mark (2009)
140: 'something used to measure'.
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635:James Watt: Craftsman and Engineer
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178:in the focal plane of a telescope
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616:Lecture Notes in Computer Science
174:). It consisted of two parallel
19:For the photographic camera, see
270:This section is an excerpt from
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588:Sniping: An Illustrated History
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152:Rangefinder salvaged from the
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633:Dickinson, H. W. (2010),
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241:stereoscopic rangefinder
42:of the Polish destroyer
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551:GB patent 189317048
466:Polytechnisches Journal
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239:fabricated a practical
222:depression range finder
199:coincidence rangefinder
195:Georg Friedrich Brander
96:anti-aircraft artillery
40:coincidence rangefinder
305:beam to determine the
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172:micrometer screw gauge
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80:rangefinding telemeter
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530:Surveying Instruments
413:Telemeter chronograph
338:Applications include
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216:In 1881, the British
188:Royal Society of Arts
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102:is derived from
624:10.1007/10705432_17
662:Laser Rangefinders
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211:Alexander Selligue
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21:Rangefinder camera
600:978-0-7603-3717-2
515:978-1-317-32103-3
295:laser rangefinder
272:Laser rangefinder
265:Laser rangefinder
226:coastal artillery
156:Admiral Graf Spee
84:measure distances
56:Laser rangefinder
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348:photography
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98:. The word
76:rangefinder
66:La Corbière
788:Categories
538:3110077655
434:References
371:Ballistics
344:navigation
168:James Watt
161:Montevideo
722:278057724
674:227620848
475:183328327
418:Bombsight
352:golf club
340:surveying
288:elevation
231:In 1899,
193:In 1778,
100:telemeter
88:surveying
689:41501265
407:See also
387:Forestry
377:firearms
307:distance
180:eyepiece
284:azimuth
144:Designs
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612:et al.
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356:weapon
255:lasers
135:métron
128:μέτρον
78:(also
69:Jersey
46:Wicher
729:(PDF)
714:(PDF)
327:lidar
303:laser
259:radar
176:hairs
106:
718:OCLC
699:ISBN
685:OCLC
670:OCLC
639:ISBN
596:ISBN
534:ISBN
510:ISBN
471:OCLC
362:Golf
315:time
286:and
118:têle
111:τῆλε
94:and
44:ORP
38:The
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257:or
235:at
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