EP0804714A4 - Laser range finder - Google Patents

Laser range finder

Info

Publication number
EP0804714A4
EP0804714A4 EP95943610A EP95943610A EP0804714A4 EP 0804714 A4 EP0804714 A4 EP 0804714A4 EP 95943610 A EP95943610 A EP 95943610A EP 95943610 A EP95943610 A EP 95943610A EP 0804714 A4 EP0804714 A4 EP 0804714A4
Authority
EP
European Patent Office
Prior art keywords
range finder
laser range
laser
finder
range
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.)
Ceased
Application number
EP95943610A
Other languages
German (de)
French (fr)
Other versions
EP0804714A1 (en
Inventor
Jeremy G Dunne
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.)
Laser Technology Inc
Original Assignee
Laser Technology Inc
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
Priority claimed from US08/375,945 external-priority patent/US5652651A/en
Priority claimed from US08/375,941 external-priority patent/US5574552A/en
Priority claimed from US08/375,810 external-priority patent/US5612779A/en
Application filed by Laser Technology Inc filed Critical Laser Technology Inc
Publication of EP0804714A1 publication Critical patent/EP0804714A1/en
Publication of EP0804714A4 publication Critical patent/EP0804714A4/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
    • 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
    • G01C3/02—Details
    • G01C3/06—Use of electric means to obtain final indication
    • G01C3/08—Use of electric radiation detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F10/00—Apparatus for measuring unknown time intervals by electric means
    • G04F10/10—Apparatus for measuring unknown time intervals by electric means by measuring electric or magnetic quantities changing in proportion to time
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F10/00—Apparatus for measuring unknown time intervals by electric means
    • G04F10/10—Apparatus for measuring unknown time intervals by electric means by measuring electric or magnetic quantities changing in proportion to time
    • G04F10/105—Apparatus for measuring unknown time intervals by electric means by measuring electric or magnetic quantities changing in proportion to time with conversion of the time-intervals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S17/14—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves wherein a voltage or current pulse is initiated and terminated in accordance with the pulse transmission and echo reception respectively, e.g. using counters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/483—Details of pulse systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/497—Means for monitoring or calibrating
EP95943610A 1995-01-19 1995-11-29 Laser range finder Ceased EP0804714A4 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US08/375,945 US5652651A (en) 1995-01-19 1995-01-19 Laser range finder having selectable target acquisition characteristics and range measuring precision
US375941 1995-01-19
US08/375,941 US5574552A (en) 1995-01-19 1995-01-19 Self-calibrating precision timing circuit and method for a laser range finder
US08/375,810 US5612779A (en) 1995-01-19 1995-01-19 Automatic noise threshold determining circuit and method for a laser range finder
US375945 1995-01-19
US375810 1995-01-19
PCT/US1995/015438 WO1996022509A1 (en) 1995-01-19 1995-11-29 Laser range finder

Publications (2)

Publication Number Publication Date
EP0804714A1 EP0804714A1 (en) 1997-11-05
EP0804714A4 true EP0804714A4 (en) 1999-05-12

Family

ID=27409265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95943610A Ceased EP0804714A4 (en) 1995-01-19 1995-11-29 Laser range finder

Country Status (6)

Country Link
EP (1) EP0804714A4 (en)
JP (1) JPH10512954A (en)
KR (1) KR100278806B1 (en)
AU (1) AU690003B2 (en)
CA (1) CA2203278C (en)
WO (1) WO1996022509A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5790244A (en) * 1996-08-23 1998-08-04 Laser Technology, Inc. Pre-biasing technique for a transistor based avalanche circuit in a laser based distance measurement and ranging instrument
DE10232878B4 (en) * 2002-07-19 2012-02-23 Robert Bosch Gmbh Apparatus and method for distance measurement
AU2003258898A1 (en) 2002-08-09 2004-02-25 Surveylab Group Limited Mobile instrument, viewing device, and methods of processing and storing information
US6889175B2 (en) 2003-01-13 2005-05-03 Trimble Navigation Limited Tunable filter device for spatial positioning systems
US6903811B2 (en) 2003-08-11 2005-06-07 Kamakura Koki Co., Ltd. Rangefinder binoculars
US7236235B2 (en) * 2004-07-06 2007-06-26 Dimsdale Engineering, Llc System and method for determining range in 3D imaging systems
KR100809353B1 (en) * 2006-12-19 2008-03-05 삼성전자주식회사 Method and apparatus for measuring the distance by using radio frequency signal
US9606228B1 (en) 2014-02-20 2017-03-28 Banner Engineering Corporation High-precision digital time-of-flight measurement with coarse delay elements
CN107407728B (en) * 2015-03-26 2020-05-22 富士胶片株式会社 Distance image acquisition device and distance image acquisition method
US9638791B2 (en) * 2015-06-25 2017-05-02 Qualcomm Incorporated Methods and apparatus for performing exposure estimation using a time-of-flight sensor
US10591598B2 (en) 2018-01-08 2020-03-17 SOS Lab co., Ltd Lidar device
WO2019135494A1 (en) 2018-01-08 2019-07-11 주식회사 에스오에스랩 Lidar device
KR102050599B1 (en) 2018-05-14 2019-12-02 주식회사 에스오에스랩 Lidar device
CN112764342B (en) * 2019-11-01 2022-02-18 北京一径科技有限公司 Time measuring device and method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959641A (en) * 1974-12-05 1976-05-25 The United States Of America As Represented By The Secretary Of The Army Digital rangefinder correlation
US4044352A (en) * 1974-12-23 1977-08-23 Hughes Aircraft Company Signal processor
US4259592A (en) * 1978-08-03 1981-03-31 Frank Frungel Ceilometric method and apparatus
US4620788A (en) * 1982-07-13 1986-11-04 Wild Heerbrugg, Ag Apparatus for measuring pulse signal delay interval
WO1991013319A1 (en) * 1990-02-26 1991-09-05 International Measurement, Inc. Laser detector system
US5221956A (en) * 1991-08-14 1993-06-22 Kustom Signals, Inc. Lidar device with combined optical sight
US5359404A (en) * 1989-03-27 1994-10-25 Laser Technology, Inc. Laser-based speed measuring device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3325750A (en) * 1963-12-23 1967-06-13 Gen Electric High resolution time interval measuring circuit employing a balanced crystal oscillator
DE1623564B1 (en) * 1967-12-01 1971-08-26 Siemens Ag Method and arrangement for distance measurement with high precision by optical means
US3644740A (en) * 1969-07-22 1972-02-22 Hughes Aircraft Co Control circuit for biasing a photodetector so as to maintain a selected false alarm rate
US4346989A (en) * 1976-11-18 1982-08-31 Hewlett-Packard Company Surveying instrument
FR2411418A1 (en) * 1977-12-08 1979-07-06 Labo Cent Telecommunicat METHOD AND DEVICE FOR ELIMINATING MULTIPLE RETURN ECHOES FOR PULSE DOPPLER RADARS
DE3219423C2 (en) * 1981-06-09 1986-04-30 MTC, Meßtechnik und Optoelektronik AG, Neuenburg/Neuchâtel Distance measuring method and device for its implementation
CH656009A5 (en) * 1981-12-17 1986-05-30 Zellweger Uster Ag METHOD AND DEVICE FOR MEASURING THE SPEED OF A MOVING OBJECT.
DE3215847C2 (en) * 1982-04-28 1985-10-31 MTC, Meßtechnik und Optoelektronik AG, Neuenburg/Neuchâtel Timing method and apparatus for its implementation
US4571085A (en) * 1983-10-11 1986-02-18 California Institute Of Technology Reflectometer based on optical cavity decay time
DE3540157A1 (en) * 1985-11-13 1987-05-21 Messerschmitt Boelkow Blohm METHOD AND DEVICE FOR DISTANCE MEASUREMENT
US5046839A (en) * 1990-07-30 1991-09-10 Locker Enterprises, Inc. Golf course range finder system
US5157403A (en) * 1991-10-04 1992-10-20 General Electric Co. Noise correction in radars for diffuse targets

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959641A (en) * 1974-12-05 1976-05-25 The United States Of America As Represented By The Secretary Of The Army Digital rangefinder correlation
US4044352A (en) * 1974-12-23 1977-08-23 Hughes Aircraft Company Signal processor
US4259592A (en) * 1978-08-03 1981-03-31 Frank Frungel Ceilometric method and apparatus
US4620788A (en) * 1982-07-13 1986-11-04 Wild Heerbrugg, Ag Apparatus for measuring pulse signal delay interval
US5359404A (en) * 1989-03-27 1994-10-25 Laser Technology, Inc. Laser-based speed measuring device
WO1991013319A1 (en) * 1990-02-26 1991-09-05 International Measurement, Inc. Laser detector system
US5221956A (en) * 1991-08-14 1993-06-22 Kustom Signals, Inc. Lidar device with combined optical sight

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DOBRATZ B.E., FARNSWORTH R.P.: "Constant False Alarm Rate Bias Control for an Avalanche Photodiode Laser Receiver", REVIEW OF SCIENTIFIC INSTRUMENTS, vol. 41, no. 8, August 1970 (1970-08-01), pages 1191 - 1195, XP002095254 *
See also references of WO9622509A1 *

Also Published As

Publication number Publication date
KR970707426A (en) 1997-12-01
AU4503896A (en) 1996-08-07
KR100278806B1 (en) 2001-02-01
JPH10512954A (en) 1998-12-08
WO1996022509A1 (en) 1996-07-25
CA2203278A1 (en) 1996-07-25
CA2203278C (en) 2006-09-05
AU690003B2 (en) 1998-04-09
EP0804714A1 (en) 1997-11-05

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