FR2433205A1 - Procede et dispositif d'interpolation des franges d'interference - Google Patents
Procede et dispositif d'interpolation des franges d'interferenceInfo
- Publication number
- FR2433205A1 FR2433205A1 FR7823415A FR7823415A FR2433205A1 FR 2433205 A1 FR2433205 A1 FR 2433205A1 FR 7823415 A FR7823415 A FR 7823415A FR 7823415 A FR7823415 A FR 7823415A FR 2433205 A1 FR2433205 A1 FR 2433205A1
- Authority
- FR
- France
- Prior art keywords
- electrical signal
- interference fringes
- image scanning
- display phase
- uses electrical
- 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
- 238000013507 mapping Methods 0.000 title abstract 2
- 230000001360 synchronised effect Effects 0.000 title 1
- 230000003287 optical effect Effects 0.000 abstract 2
- 238000002050 diffraction method Methods 0.000 abstract 1
- 238000010894 electron beam technology Methods 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 230000015654 memory Effects 0.000 abstract 1
- 238000000386 microscopy Methods 0.000 abstract 1
- 238000005191 phase separation Methods 0.000 abstract 1
- 238000000711 polarimetry Methods 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
- G01J9/02—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/022—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of tv-camera scanning
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
Abstract
Interpolation des franges d'interférence. L'invention permet de produire un réseau de courbes ou lignes d'égales différences de marche telles que la variation de différence de marche entre deux lignes successives soit égale à un sous-multiple entier de la longueur d'onde lumineuse d'ordre aussi élevé que possible, alors que la variation de différence de marche entre deux franges successives est toujours égale à une longueur d'onde. Application : métrologie (mesure des longueurs, des angles, des déformations, des déplacements.,), élasticimétrie (mesure des contraintes...), réfractométrie (mesure des indices de réfraction), polarimétrie, cristallographie.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7823415A FR2433205A1 (fr) | 1978-08-08 | 1978-08-08 | Procede et dispositif d'interpolation des franges d'interference |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7823415A FR2433205A1 (fr) | 1978-08-08 | 1978-08-08 | Procede et dispositif d'interpolation des franges d'interference |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2433205A1 true FR2433205A1 (fr) | 1980-03-07 |
FR2433205B1 FR2433205B1 (fr) | 1982-12-17 |
Family
ID=9211703
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7823415A Granted FR2433205A1 (fr) | 1978-08-08 | 1978-08-08 | Procede et dispositif d'interpolation des franges d'interference |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2433205A1 (fr) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3527537A (en) * | 1968-02-09 | 1970-09-08 | Itek Corp | Automatic correlating interferometer |
US3644046A (en) * | 1969-04-02 | 1972-02-22 | Owens Illinois Inc | Method and apparatus for measuring interferometer fringe patterns |
US3694088A (en) * | 1971-01-25 | 1972-09-26 | Bell Telephone Labor Inc | Wavefront measurement |
FR2269073A1 (fr) * | 1974-04-26 | 1975-11-21 | United Kingdom Government | |
DE2750832A1 (de) * | 1977-02-14 | 1978-08-17 | Zygo Corp | Vorrichtung und verfahren zum quantitativen bestimmen von unregelmaessigkeiten in einem geometrischen testbild |
-
1978
- 1978-08-08 FR FR7823415A patent/FR2433205A1/fr active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3527537A (en) * | 1968-02-09 | 1970-09-08 | Itek Corp | Automatic correlating interferometer |
US3644046A (en) * | 1969-04-02 | 1972-02-22 | Owens Illinois Inc | Method and apparatus for measuring interferometer fringe patterns |
US3694088A (en) * | 1971-01-25 | 1972-09-26 | Bell Telephone Labor Inc | Wavefront measurement |
FR2269073A1 (fr) * | 1974-04-26 | 1975-11-21 | United Kingdom Government | |
DE2750832A1 (de) * | 1977-02-14 | 1978-08-17 | Zygo Corp | Vorrichtung und verfahren zum quantitativen bestimmen von unregelmaessigkeiten in einem geometrischen testbild |
Non-Patent Citations (3)
Title |
---|
NV2219/68 * |
NV2219/74 * |
NV8127/78 * |
Also Published As
Publication number | Publication date |
---|---|
FR2433205B1 (fr) | 1982-12-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |