CA2382372A1 - Resolution pour reflexions multiples d'un faisceau lumineux - Google Patents

Resolution pour reflexions multiples d'un faisceau lumineux Download PDF

Info

Publication number
CA2382372A1
CA2382372A1 CA002382372A CA2382372A CA2382372A1 CA 2382372 A1 CA2382372 A1 CA 2382372A1 CA 002382372 A CA002382372 A CA 002382372A CA 2382372 A CA2382372 A CA 2382372A CA 2382372 A1 CA2382372 A1 CA 2382372A1
Authority
CA
Canada
Prior art keywords
light
focal position
spot
multiple reflections
peaks
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
Application number
CA002382372A
Other languages
English (en)
Other versions
CA2382372C (fr
Inventor
Joji Nakayama
Atsushi Katayama
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph And Telephone Corporation
Joji Nakayama
Atsushi Katayama
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 Nippon Telegraph And Telephone Corporation, Joji Nakayama, Atsushi Katayama filed Critical Nippon Telegraph And Telephone Corporation
Priority claimed from CA002255097A external-priority patent/CA2255097C/fr
Publication of CA2382372A1 publication Critical patent/CA2382372A1/fr
Application granted granted Critical
Publication of CA2382372C publication Critical patent/CA2382372C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Measurement Of Optical Distance (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
CA002382372A 1997-12-05 1998-12-04 Resolution pour reflexions multiples d'un faisceau lumineux Expired - Fee Related CA2382372C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP33588997 1997-12-05
JP9-335889 1997-12-05
CA002255097A CA2255097C (fr) 1997-12-05 1998-12-04 Methode et appareil de calcul de la distance

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002255097A Division CA2255097C (fr) 1997-12-05 1998-12-04 Methode et appareil de calcul de la distance

Publications (2)

Publication Number Publication Date
CA2382372A1 true CA2382372A1 (fr) 1999-06-05
CA2382372C CA2382372C (fr) 2007-03-20

Family

ID=25680656

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002382372A Expired - Fee Related CA2382372C (fr) 1997-12-05 1998-12-04 Resolution pour reflexions multiples d'un faisceau lumineux

Country Status (1)

Country Link
CA (1) CA2382372C (fr)

Also Published As

Publication number Publication date
CA2382372C (fr) 2007-03-20

Similar Documents

Publication Publication Date Title
AU2001285839A1 (en) Method for carrying out the non-contact measurement of geometries of objects
AU6848798A (en) Sensor unit, process and device for inspecting the surface of an object
FR2394106A1 (fr) Transducteur optique et systeme de mise au point d'objectif, notamment pour video-disques
CA2311818A1 (fr) Mesure et correction objective des systemes optiques par analyse des fronts d'onde
DE59911709D1 (de) Positionierung des messvolumens in einem scanning-mikroskopischen verfahren
EP1503403A4 (fr) Reticule et procede de mesure de caracteristique optique
EP0793117A3 (fr) Télémètre à ondes de lumière, et procédé pour déterminer la distance d'un objet
GB2248109A (en) Non-contact measuring device
EP1353213A3 (fr) Source de lumière et appareil de balayage optique l'utilisant
SE9803162D0 (sv) Electronic distance measuring device
WO2020253898A8 (fr) Système et procédé de contrôle de position focale
TW339405B (en) Lens parameter measurement using optical sectioning
DE60026833D1 (de) Positionsempfindlicher detektor zur erfassung eines lichtpunkts
GB2183418A (en) Determining distance to a surface
EP0921370A3 (fr) Procédé et dispositif pour déterminer une distance
WO1996027808A3 (fr) Procede et systeme permettant de deceler et de localiser des objets dans un secteur
US5592285A (en) Optical source position and direction sensor
EP1186928A3 (fr) Appareil optique de mesure de distances à traitement parallèle
EP0316624A3 (fr) Appareil et méthode pour appareil de figuration et inspection
CA2382372A1 (fr) Resolution pour reflexions multiples d'un faisceau lumineux
GB9503485D0 (en) Displacement measurement apparatus and method
GB2212040A (en) Light aiming device for medical or dental X-ray equipment
EP3514484A1 (fr) Dispositif et procédé de mesure optique
Cousin et al. An auto-focus system for reproducible focusing in laser ablation inductively coupled plasma mass spectrometry
JP2004037461A (ja) 光学距離測定デバイス

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed