38:
64:
290:
46:
72:
160:
566:
377:
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.
193:
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.
264:. 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
260:-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
216:
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
561:
101:, 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
769:
390:
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
804:
293:
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
181:
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
224:
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.
239:. 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.
719:
694:(revision and redesignation of "ANSI PH3.619-1988" as "ANSI/PIMA IT3.619-1998") American National Standards Institute, New York,
579:"Golf Rangefinder Comparison Chart at Golfsmith." Golf Rangefinder Comparison Chart at Golfsmith. N.p., n.d. Web. 06 Nov. 2014.
17:
747:
610:
524:
775:
692:
American national standard for photography (optics) : rangefinders and other focusing aids – performance specifications
676:
336:
and other techniques are often used instead. Laser rangefinders are sometimes classified as type of handheld scannerless
498:
475:
653:
37:
713:
138:
394:, warships used very large optical rangefinders—with a baseline of many meters—to measure range for naval gunnery.
164:
727:, Infantry and Cavalry School Lectures 1902-1910, Staff College Press, U.S. Army, Fort Leavenworth, Kansas, 1905,
548:
197:
Several others have been credited with the invention of the rangefinder telemeter at one time or another. The
63:
201:
gave an award to W. Green for its invention in 1778, even though they were made aware of Watt's priority.
121:
564:, Hector Alexander de Grousilliers, "Improved Stereoscopic Telemeter.", issued 1894-07-14
251:
789:
402:
Rangefinders are used for surveying in forestry. Special devices with anti-leaf filters are used.
809:
759:
Range-Finding in the Army. How to use range-finders to get results: the erect and inverted types,
232:
209:
205:
106:
50:
309:
182:
114:
736:
328:
taken by the pulse to be reflected off the target and returned to the sender. Due to the high
757:
514:
423:
198:
602:
721:
Notes on rangefinders, compasses and on contouring with the Scale of
Horizontal Equivalents
332:, this technique is not appropriate for high precision sub-millimeter measurements, where
8:
324:
principle by sending a laser pulse in a narrow beam towards the object and measuring the
221:
94:
31:
289:
728:
709:
695:
680:
668:"Range Finder (instrument)." Encyclopædia Britannica Online. Encyclopædia Britannica,
649:
606:
544:
520:
481:
305:
282:
236:
54:
45:
630:
391:
762:
438:
411:
261:
228:
212:. Two mirrors set a distance apart horizontally in a long slim box, similar to a
625:(1999) "The aware home: A living laboratory for ubiquitous computing research"
71:
433:
329:
321:
159:
76:
798:
732:
333:
247:
243:
217:
671:
Army Test and
Evaluation Command, Aberdeen Proving Ground Maryland (1969)
257:
213:
684:
485:
699:
358:
634:
320:
to an object. The most common form of laser rangefinder operates on the
354:
178:
171:
428:
362:
350:
298:
144:
127:
102:
98:
317:
190:
588:"While We're Young, USGA." Golf.com. N.p., n.d. Web. 06 Nov. 2014.
387:
294:
186:
560:
366:
235:, which had been developed by Captain H.S.S. Watkin for use by
79:
765:
monthly, February 1919, page 118–120, Scanned by Google Books
337:
313:
269:
265:
790:
Rangefinder
Comparison - A National Forest Service document
325:
690:
Photographic and
Imaging Manufacturers Association (1999)
516:
The
Optical Munitions Industry in Great Britain, 1888–1923
365:
according to distance, and correcting aim of a projectile
414:
systems to detect operator movements and locate objects.
254:, based on a patent of Hector Alexander de Grousilliers.
752:
Transactions of the
Institute of Measurement and Control
500:
Archiv für
Geographie, Historie, Staats- und Kriegskunst
97:
to remote objects. Originally optical devices used in
687:(early history of the use of lasers in rangefinders)
503:, vol. 13, Franz Härter: Wien, page 561 (in German)
27:Device used to measure distances to remote objects
774:, Berkeley Nucleonics Corporation, archived from
796:
410:Since the 1990s, rangefinders have been used in
177:The first rangefinder telemeter was invented by
93:, depending on the context) is a device used to
75:Second World War German range finding tower at
748:Further considerations of defocus rangefinders
805:Length, distance, or range measuring devices
706:Rangefinder: Equipment, History, Techniques
220:invented a half-image range finder. Though
41:Portable stereoscopic rangefinder from WWII
480:, vol. 8, page 121, Stuttgart: Cotta 1822
704:Hicks, Roger and Schultz, Frances (2003)
643:
771:Electro Optic Application Test Equipment
512:
308:, also known as a laser telemeter, is a
288:
158:
70:
62:
44:
36:
14:
797:
708:Guild of Master Craftsman, Lewes, UK,
601:Zenith Press, Grand Rapids, Michigan,
134: 'distant, far away' and
742:on 2016-03-03 – via archive.org
386:Rangefinders may be used by users of
679:, U.S. Army, Ft. Belvoir, Virginia,
677:Defense Technical Information Center
519:. Taylor & Francis. p. 27.
275:
597:Farey, Pat and Spicer, Mark (2009)
151: 'something used to measure'.
24:
662:
646:James Watt: Craftsman and Engineer
405:
189:in the focal plane of a telescope
25:
821:
783:
627:Lecture Notes in Computer Science
185:). It consisted of two parallel
30:For the photographic camera, see
281:This section is an excerpt from
615:
599:Sniping: An Illustrated History
591:
344:
648:, Cambridge University Press,
582:
573:
554:
533:
506:
491:
468:
459:
456:Dickinson, 2010 pp. 56, 75-76
450:
163:Rangefinder salvaged from the
13:
1:
444:
381:
513:Sambrook, Stephen C (2015).
497:A. Rittig von Flammenstern,
7:
417:
397:
10:
826:
746:Whitehouse, J. C. (2005) "
543:, Walter de Gruyter, 1982
474:Johann Gottfried Dingler,
465:Dickinson, 2010. pp. 76-77
280:
154:
137:
120:
29:
644:Dickinson, H. W. (2010),
629:1670: pp. 191–198,
357:, to assist focusing in
252:stereoscopic rangefinder
53:of the Polish destroyer
754:27(4): pp. 297–316
562:GB patent 189317048
477:Polytechnisches Journal
372:
250:fabricated a practical
233:depression range finder
210:coincidence rangefinder
206:Georg Friedrich Brander
107:anti-aircraft artillery
51:coincidence rangefinder
316:beam to determine the
302:
183:micrometer screw gauge
174:
91:rangefinding telemeter
82:
68:
60:
42:
18:Rangefinding telemeter
541:Surveying Instruments
424:Telemeter chronograph
349:Applications include
292:
227:In 1881, the British
199:Royal Society of Arts
162:
74:
66:
48:
40:
113:is derived from
635:10.1007/10705432_17
673:Laser Rangefinders
303:
222:Alexander Selligue
175:
83:
69:
61:
43:
32:Rangefinder camera
611:978-0-7603-3717-2
526:978-1-317-32103-3
306:laser rangefinder
283:Laser rangefinder
276:Laser rangefinder
237:coastal artillery
167:Admiral Graf Spee
95:measure distances
67:Laser rangefinder
16:(Redirected from
817:
779:
743:
741:
735:, archived from
726:
658:
637:
619:
613:
595:
589:
586:
580:
577:
571:
570:
569:
565:
558:
552:
539:Fritz Deumlich,
537:
531:
530:
510:
504:
495:
489:
472:
466:
463:
457:
454:
392:Second World War
148:
141:
131:
124:
21:
825:
824:
820:
819:
818:
816:
815:
814:
795:
794:
786:
768:
763:Popular Science
739:
724:
718:
665:
663:Further reading
656:
640:
620:
616:
596:
592:
587:
583:
578:
574:
567:
559:
555:
538:
534:
527:
511:
507:
496:
492:
473:
469:
464:
460:
455:
451:
447:
439:Head-up display
420:
412:virtual reality
408:
406:Virtual reality
400:
384:
375:
347:
342:
341:
286:
278:
262:skinny triangle
229:Royal Artillery
165:German cruiser
157:
35:
28:
23:
22:
15:
12:
11:
5:
823:
813:
812:
810:Golf equipment
807:
793:
792:
785:
784:External links
782:
781:
780:
766:
755:
744:
716:
702:
688:
669:
664:
661:
660:
659:
655:978-1108012232
654:
639:
638:
621:Kidd, Cory D.
614:
590:
581:
572:
553:
532:
525:
505:
490:
467:
458:
448:
446:
443:
442:
441:
436:
434:Spotting scope
431:
426:
419:
416:
407:
404:
399:
396:
383:
380:
374:
371:
369:for distance.
346:
343:
330:speed of light
322:time of flight
287:
279:
277:
274:
170:on display in
156:
153:
26:
9:
6:
4:
3:
2:
822:
811:
808:
806:
803:
802:
800:
791:
788:
787:
778:on 2011-07-11
777:
773:
772:
767:
764:
761:
760:
756:
753:
749:
745:
738:
734:
730:
723:
722:
717:
715:
714:1-86108-330-0
711:
707:
703:
701:
697:
693:
689:
686:
682:
678:
674:
670:
667:
666:
657:
651:
647:
642:
641:
636:
632:
628:
624:
618:
612:
608:
604:
600:
594:
585:
576:
563:
557:
550:
546:
542:
536:
528:
522:
518:
517:
509:
502:
501:
494:
487:
483:
479:
478:
471:
462:
453:
449:
440:
437:
435:
432:
430:
427:
425:
422:
421:
415:
413:
403:
395:
393:
389:
379:
370:
368:
364:
361:, choosing a
360:
356:
352:
339:
335:
334:triangulation
331:
327:
323:
319:
315:
311:
307:
301:measurements.
300:
296:
291:
284:
273:
271:
267:
263:
259:
255:
253:
249:
248:Carl Zeiss AG
245:
244:Carl Pulfrich
240:
238:
234:
230:
225:
223:
219:
218:Jesse Ramsden
215:
211:
208:invented the
207:
202:
200:
195:
192:
188:
184:
180:
173:
169:
168:
161:
152:
150:
147:
140:
136:
133:
130:
123:
119:
116:
115:Ancient Greek
112:
108:
104:
103:naval gunnery
100:
96:
92:
88:
81:
78:
73:
65:
59:
58:
52:
47:
39:
33:
19:
776:the original
770:
758:
751:
737:the original
720:
705:
691:
675:Ft. Belvoir
672:
645:
626:
622:
617:
598:
593:
584:
575:
556:
540:
535:
515:
508:
499:
493:
476:
470:
461:
452:
409:
401:
385:
376:
348:
345:Applications
312:that uses a
258:World War II
256:
241:
231:adopted the
226:
214:subtense bar
203:
196:
176:
166:
145:
142:
135:
128:
125:
118:
110:
90:
86:
84:
56:
488:(in German)
359:photography
310:rangefinder
109:. The word
87:rangefinder
77:La Corbière
799:Categories
549:3110077655
445:References
382:Ballistics
355:navigation
179:James Watt
172:Montevideo
733:278057724
685:227620848
486:183328327
429:Bombsight
363:golf club
351:surveying
299:elevation
242:In 1899,
204:In 1778,
111:telemeter
99:surveying
700:41501265
418:See also
398:Forestry
388:firearms
318:distance
191:eyepiece
295:azimuth
155:Designs
731:
712:
698:
683:
652:
623:et al.
609:
603:page 7
568:
551:(p.15)
547:
523:
484:
367:weapon
266:lasers
146:métron
139:μέτρον
89:(also
80:Jersey
57:Wicher
740:(PDF)
725:(PDF)
338:lidar
314:laser
270:radar
187:hairs
117:
729:OCLC
710:ISBN
696:OCLC
681:OCLC
650:ISBN
607:ISBN
545:ISBN
521:ISBN
482:OCLC
373:Golf
326:time
297:and
129:têle
122:τῆλε
105:and
55:ORP
49:The
631:doi
268:or
246:at
801::
750:"
605:,
353:,
304:A
272:.
85:A
633::
529:.
340:.
285:.
149:)
143:(
132:)
126:(
34:.
20:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
