JPS574564A - Optical device for calibrating laser range finder - Google Patents
Optical device for calibrating laser range finderInfo
- Publication number
- JPS574564A JPS574564A JP7774780A JP7774780A JPS574564A JP S574564 A JPS574564 A JP S574564A JP 7774780 A JP7774780 A JP 7774780A JP 7774780 A JP7774780 A JP 7774780A JP S574564 A JPS574564 A JP S574564A
- Authority
- JP
- Japan
- Prior art keywords
- range finder
- laser range
- measured
- time
- delay time
- 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.)
- Granted
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
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2861—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using fibre optic delay lines and optical elements associated with them, e.g. for use in signal processing, e.g. filtering
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
PURPOSE:To enable to measure and calibrate the delay time of the laser range finder accurately and simply by using an optical fiber having the input and output terminals housed in a constant temperature oven. CONSTITUTION:Input and output terminals 27 and 28 are attached to the optical fiber 29 having a predetermined length. The fiber 29 is housed in the constant temperature oven 211, and a delay line which is not subjected to the ambient temperature is formed. The optical pulses from a transmitter 21 of the laser range finder whose delay time is to be measured is fed to the fiber 29 from the input terminal 27, and the output from the output terminal 28 is received by receivers 22 and 23. The difference between the time of said output signal and the time of the laser start signal is measured by a time interval counter 24, and the delay time of the range finder is measured. In this constitution, the delay time of the laser range finder can be accurately and simply measured and calibrated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7774780A JPS574564A (en) | 1980-06-11 | 1980-06-11 | Optical device for calibrating laser range finder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7774780A JPS574564A (en) | 1980-06-11 | 1980-06-11 | Optical device for calibrating laser range finder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS574564A true JPS574564A (en) | 1982-01-11 |
JPS6319832B2 JPS6319832B2 (en) | 1988-04-25 |
Family
ID=13642499
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7774780A Granted JPS574564A (en) | 1980-06-11 | 1980-06-11 | Optical device for calibrating laser range finder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS574564A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0723168A2 (en) * | 1995-01-23 | 1996-07-24 | Siemens Aktiengesellschaft | Adjustable optical delay line |
WO1998023972A1 (en) * | 1996-11-26 | 1998-06-04 | Precilaser | Meter rule using laser diode for accurate measuring |
WO1997040342A3 (en) * | 1996-04-24 | 1998-07-30 | Cyra Technologies Inc | Integrated system for imaging and modeling three-dimensional objects |
US6420698B1 (en) * | 1997-04-24 | 2002-07-16 | Cyra Technologies, Inc. | Integrated system for quickly and accurately imaging and modeling three-dimensional objects |
US6901673B1 (en) | 2004-05-20 | 2005-06-07 | The Boeing Company | Tie-in device for the correlation of coordinate systems |
-
1980
- 1980-06-11 JP JP7774780A patent/JPS574564A/en active Granted
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0723168A3 (en) * | 1995-01-23 | 1998-07-15 | Siemens Aktiengesellschaft | Adjustable optical delay line |
EP0723168A2 (en) * | 1995-01-23 | 1996-07-24 | Siemens Aktiengesellschaft | Adjustable optical delay line |
US6330523B1 (en) | 1996-04-24 | 2001-12-11 | Cyra Technologies, Inc. | Integrated system for quickly and accurately imaging and modeling three-dimensional objects |
WO1997040342A3 (en) * | 1996-04-24 | 1998-07-30 | Cyra Technologies Inc | Integrated system for imaging and modeling three-dimensional objects |
US5988862A (en) * | 1996-04-24 | 1999-11-23 | Cyra Technologies, Inc. | Integrated system for quickly and accurately imaging and modeling three dimensional objects |
US6246468B1 (en) | 1996-04-24 | 2001-06-12 | Cyra Technologies | Integrated system for quickly and accurately imaging and modeling three-dimensional objects |
US6473079B1 (en) | 1996-04-24 | 2002-10-29 | Cyra Technologies, Inc. | Integrated system for quickly and accurately imaging and modeling three-dimensional objects |
US6512518B2 (en) | 1996-04-24 | 2003-01-28 | Cyra Technologies, Inc. | Integrated system for quickly and accurately imaging and modeling three-dimensional objects |
US6734849B2 (en) | 1996-04-24 | 2004-05-11 | Cyra Technologies, Inc. | Integrated system for quickly and accurately imaging and modeling three-dimensional objects |
US6847462B1 (en) | 1996-04-24 | 2005-01-25 | Leica Geosystems Hds, Inc. | Integrated system for quickly and accurately imaging and modeling three-dimensional objects |
US7184036B2 (en) | 1996-04-24 | 2007-02-27 | Leica Geosystems Hds Llc | Integrated system for quickly and accurately imaging and modeling three-dimensional objects |
US7215430B2 (en) | 1996-04-24 | 2007-05-08 | Leica Geosystems Hds Llc | Integrated system for quickly and accurately imaging and modeling three-dimensional objects |
WO1998023972A1 (en) * | 1996-11-26 | 1998-06-04 | Precilaser | Meter rule using laser diode for accurate measuring |
US6420698B1 (en) * | 1997-04-24 | 2002-07-16 | Cyra Technologies, Inc. | Integrated system for quickly and accurately imaging and modeling three-dimensional objects |
US6901673B1 (en) | 2004-05-20 | 2005-06-07 | The Boeing Company | Tie-in device for the correlation of coordinate systems |
Also Published As
Publication number | Publication date |
---|---|
JPS6319832B2 (en) | 1988-04-25 |
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