IT1074352B - Sistema rivelatore di difetti - Google Patents
Sistema rivelatore di difettiInfo
- Publication number
- IT1074352B IT1074352B IT23617/77A IT2361777A IT1074352B IT 1074352 B IT1074352 B IT 1074352B IT 23617/77 A IT23617/77 A IT 23617/77A IT 2361777 A IT2361777 A IT 2361777A IT 1074352 B IT1074352 B IT 1074352B
- Authority
- IT
- Italy
- Prior art keywords
- detector system
- defect detector
- defect
- detector
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
- G11B7/261—Preparing a master, e.g. exposing photoresist, electroforming
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/9506—Optical discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
- G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs
- G11B7/00375—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs arrangements for detection of physical defects, e.g. of recording layer
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Optical Recording Or Reproduction (AREA)
- Manufacturing Optical Record Carriers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/691,206 US4030835A (en) | 1976-05-28 | 1976-05-28 | Defect detection system |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1074352B true IT1074352B (it) | 1985-04-20 |
Family
ID=24775572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT23617/77A IT1074352B (it) | 1976-05-28 | 1977-05-16 | Sistema rivelatore di difetti |
Country Status (8)
Country | Link |
---|---|
US (1) | US4030835A (it) |
JP (1) | JPS52146601A (it) |
AU (1) | AU511802B2 (it) |
CA (1) | CA1095619A (it) |
DE (1) | DE2724121C3 (it) |
FR (1) | FR2353107A1 (it) |
GB (1) | GB1578817A (it) |
IT (1) | IT1074352B (it) |
Families Citing this family (46)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4180830A (en) * | 1977-06-28 | 1979-12-25 | Rca Corporation | Depth estimation system using diffractive effects of the grooves and signal elements in the grooves |
US4155098A (en) * | 1977-06-28 | 1979-05-15 | Rca Corporation | Groove depth estimation system using diffractive groove effects |
US4197011A (en) * | 1977-09-22 | 1980-04-08 | Rca Corporation | Defect detection and plotting system |
US4200396A (en) * | 1977-12-19 | 1980-04-29 | Rca Corporation | Optically testing the lateral dimensions of a pattern |
US4303341A (en) * | 1977-12-19 | 1981-12-01 | Rca Corporation | Optically testing the lateral dimensions of a pattern |
CH622896A5 (it) * | 1978-03-20 | 1981-04-30 | Landis & Gyr Ag | |
US4236823A (en) * | 1978-09-18 | 1980-12-02 | Rca Corporation | Diffractometer for measuring signal depth and width |
JPS5690246A (en) * | 1979-12-24 | 1981-07-22 | Matsushita Electric Ind Co Ltd | Optical defect detection device |
US4307419A (en) * | 1980-04-23 | 1981-12-22 | Rca Corporation | Video disc signal surface imaging apparatus |
US4352564A (en) * | 1980-05-30 | 1982-10-05 | Rca Corporation | Missing order defect detection apparatus |
US4341469A (en) * | 1980-06-18 | 1982-07-27 | Discovision Associates | Laser shadowgraph |
US4320567A (en) * | 1980-06-30 | 1982-03-23 | Rca Corporation | Optical inspection method for determining machinability |
JPS57161640A (en) * | 1981-03-31 | 1982-10-05 | Olympus Optical Co Ltd | Inspecting device for surface |
US4395122A (en) * | 1981-04-29 | 1983-07-26 | Rca Corporation | Defect detection system |
JPS57184957A (en) * | 1981-05-09 | 1982-11-13 | Toshiba Corp | Defect inspecting device |
US4412743A (en) * | 1981-09-08 | 1983-11-01 | Discovision Associates | Off-axis light beam defect detector |
JPS58121148A (ja) * | 1982-01-11 | 1983-07-19 | Olympus Optical Co Ltd | 光学的情報記録再生装置 |
US4598997A (en) * | 1982-02-15 | 1986-07-08 | Rca Corporation | Apparatus and method for detecting defects and dust on a patterned surface |
US4477890A (en) * | 1982-03-01 | 1984-10-16 | Discovision Associates | Mapping disc defect detector |
US4541716A (en) * | 1983-04-15 | 1985-09-17 | Rca Corporation | Detection of defects in a circular or spiral diffraction grating |
DE3411934C2 (de) * | 1983-04-22 | 1986-04-24 | Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch | Fehlerfeststellungsvorrichtung |
DE3472300D1 (en) * | 1983-04-22 | 1988-07-28 | Sick Optik Elektronik Erwin | Device for the detection of faults |
JPS61111036U (it) * | 1984-12-24 | 1986-07-14 | ||
JPH0654221B2 (ja) * | 1985-04-12 | 1994-07-20 | 株式会社日立製作所 | 段差測定装置およびその方法 |
NL8503411A (nl) * | 1985-12-11 | 1987-07-01 | Philips Nv | Inrichting voor het bepalen van een centreringsfout van een ronde spoorvormige informatiestruktuur in een optische registratiedrager ten opzichte van de draaiingsas van een draaitafel waarop de registratiedrager is aangebracht, alsmede een apparaat voorzien van een dergelijke inrichting en een registratiedrager geschikt voor gebruik in deze inrichting. |
JPS62102074U (it) * | 1985-12-18 | 1987-06-29 | ||
JPS62157057U (it) * | 1986-03-27 | 1987-10-06 | ||
JPS63153455A (ja) * | 1986-12-18 | 1988-06-25 | Yokogawa Electric Corp | 光デイスクテストシステム |
JPS63153456A (ja) * | 1986-12-18 | 1988-06-25 | Yokogawa Electric Corp | 光デイスクテストシステム |
US5337146A (en) * | 1992-03-30 | 1994-08-09 | University Of New Orleans | Diffraction-grating photopolarimeters and spectrophotopolarimeters |
US5666201A (en) * | 1992-09-18 | 1997-09-09 | J.A. Woollam Co. Inc. | Multiple order dispersive optics system and method of use |
US5805285A (en) * | 1992-09-18 | 1998-09-08 | J.A. Woollam Co. Inc. | Multiple order dispersive optics system and method of use |
US5413939A (en) * | 1993-06-29 | 1995-05-09 | First Medical, Inc. | Solid-phase binding assay system for interferometrically measuring analytes bound to an active receptor |
AUPM821994A0 (en) * | 1994-09-19 | 1994-10-13 | Amcor Limited | Washboard measuring apparatus |
DE4434474C2 (de) * | 1994-09-27 | 2000-06-15 | Basler Ag | Verfahren und Vorrichtung zur vollständigen optischen Qualitätskontrolle von Gegenständen |
DE4434473A1 (de) * | 1994-09-27 | 1996-03-28 | Basler Gmbh | Verfahren und Vorrichtung zur Qualitätskontrolle von Gegenständen mit polarisiertem Licht |
DE4434475C2 (de) * | 1994-09-27 | 1998-05-28 | Basler Gmbh | Verfahren und Vorrichtung zur Qualitätskontrolle eines Gegenstandes, insbesondere einer Compact-Disc |
EP0860084A1 (en) * | 1995-11-08 | 1998-08-26 | Iomega Corporation | Flexible disk mode observer |
US6046801A (en) * | 1997-12-23 | 2000-04-04 | Analog Technologies, Inc. | Laser-based inspection system for optical disks |
DE10054099B4 (de) * | 2000-10-31 | 2005-09-01 | Steag Eta-Optik Gmbh | Verfahren und Vorrichtung zum Bestimmen von Defektenauf oder in einem Gegenstand |
FR2826112B1 (fr) * | 2001-06-14 | 2003-09-05 | Dev Applic | Appareil d'examen micrometrique d'une surface, d'application quelconque et notamment medicale |
JP4581370B2 (ja) * | 2003-10-09 | 2010-11-17 | ソニー株式会社 | 凹凸パターン検査装置及び凹凸パターン検査方法 |
US7511816B2 (en) * | 2005-06-16 | 2009-03-31 | Kla-Tencor Technologies Corp. | Methods and systems for determining drift in a position of a light beam with respect to a chuck |
JP5390757B2 (ja) * | 2007-09-04 | 2014-01-15 | Hoya株式会社 | 磁気ディスク基板及びその製造方法並びに磁気ディスク及びその製造方法 |
DE102009029234A1 (de) * | 2009-09-07 | 2011-03-10 | Robert Bosch Gmbh | Laserprojektor zur Fahrwerksvermessung |
CN117681079B (zh) * | 2024-02-02 | 2024-05-14 | 江苏金穗能源设备制造有限公司 | 一种防泄漏gis开关壳体用表面处理装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3614232A (en) * | 1968-11-25 | 1971-10-19 | Ibm | Pattern defect sensing using error free blocking spacial filter |
US3633037A (en) * | 1969-10-15 | 1972-01-04 | Perkin Elmer Corp | Method and apparatus for observing, detecting and correcting periodic structures in a moving web |
US3842194A (en) * | 1971-03-22 | 1974-10-15 | Rca Corp | Information records and recording/playback systems therefor |
FR2137104B1 (it) * | 1971-05-13 | 1973-05-11 | Roy Kleber | |
DE2200222A1 (de) * | 1972-01-04 | 1973-07-12 | Ibm Deutschland | Vorrichtung zur bestimmung der oberflaechenguete |
US3783296A (en) * | 1972-04-14 | 1974-01-01 | Deering Milliken Res Corp | Method and apparatus for detecting flaws in a fabric web |
AR205243A1 (es) * | 1972-05-11 | 1976-04-21 | Philips Nv | Aparato para la lectura de un portador de grabacion reflector plano |
FR2212070A6 (it) * | 1972-08-25 | 1974-07-19 | Thomson Csf | |
DE2404972A1 (de) * | 1974-02-01 | 1975-08-07 | Ciba Geigy Ag | Vorrichtung zur ermittlung von fehlstellen auf der oberflaeche eines bewegten reflektierenden materials |
US3879131A (en) * | 1974-02-06 | 1975-04-22 | Bell Telephone Labor Inc | Photomask inspection by real time diffraction pattern analysis |
DE2415592C3 (de) * | 1974-03-30 | 1979-06-21 | Phieler, Thomas, 2400 Luebeck | Verfahren zum Messen von Fehlstellen in einer kreisringförmigen, mit einer Dichtungsmasse versehenen Verschlußzone auf dem Boden eines rotationssymmetrischen Deckels |
US3915576A (en) * | 1974-09-30 | 1975-10-28 | Mca Disco Vision | Method and apparatus for centering a circular disc |
NL7413162A (nl) * | 1974-10-07 | 1976-04-09 | Philips Nv | Inrichting voor het uitlezen van een schijf- vormige registratiedrager. |
-
1976
- 1976-05-28 US US05/691,206 patent/US4030835A/en not_active Expired - Lifetime
-
1977
- 1977-05-16 IT IT23617/77A patent/IT1074352B/it active
- 1977-05-18 CA CA278,718A patent/CA1095619A/en not_active Expired
- 1977-05-23 AU AU25411/77A patent/AU511802B2/en not_active Expired
- 1977-05-23 GB GB21689/77A patent/GB1578817A/en not_active Expired
- 1977-05-26 JP JP6208277A patent/JPS52146601A/ja active Granted
- 1977-05-27 DE DE2724121A patent/DE2724121C3/de not_active Expired
- 1977-05-27 FR FR7716382A patent/FR2353107A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2724121C3 (de) | 1982-03-11 |
DE2724121B2 (de) | 1981-06-11 |
AU2541177A (en) | 1978-11-30 |
JPS52146601A (en) | 1977-12-06 |
AU511802B2 (en) | 1980-09-04 |
FR2353107B1 (it) | 1982-03-19 |
CA1095619A (en) | 1981-02-10 |
JPS576161B2 (it) | 1982-02-03 |
FR2353107A1 (fr) | 1977-12-23 |
US4030835A (en) | 1977-06-21 |
DE2724121A1 (de) | 1977-12-01 |
GB1578817A (en) | 1980-11-12 |
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