JPH0532793B2 - - Google Patents
Info
- Publication number
- JPH0532793B2 JPH0532793B2 JP58065678A JP6567883A JPH0532793B2 JP H0532793 B2 JPH0532793 B2 JP H0532793B2 JP 58065678 A JP58065678 A JP 58065678A JP 6567883 A JP6567883 A JP 6567883A JP H0532793 B2 JPH0532793 B2 JP H0532793B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- window
- polarization
- reading window
- reading
- 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.)
- Expired - Lifetime
Links
- 230000010287 polarization Effects 0.000 claims description 30
- 230000003287 optical effect Effects 0.000 claims description 22
- 238000001514 detection method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- LAJZODKXOMJMPK-UHFFFAOYSA-N tellurium dioxide Chemical compound O=[Te]=O LAJZODKXOMJMPK-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
- G06K7/10861—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels
- G06K7/10871—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels randomly oriented data-fields, code-marks therefore, e.g. concentric circles-code
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Optical Scanning Systems (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58065678A JPS59191675A (ja) | 1983-04-15 | 1983-04-15 | 光学的読取装置 |
US06/598,888 US4685147A (en) | 1983-04-15 | 1984-04-10 | Optical reading and displaying device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58065678A JPS59191675A (ja) | 1983-04-15 | 1983-04-15 | 光学的読取装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59191675A JPS59191675A (ja) | 1984-10-30 |
JPH0532793B2 true JPH0532793B2 (US07902200-20110308-C00004.png) | 1993-05-17 |
Family
ID=13293897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58065678A Granted JPS59191675A (ja) | 1983-04-15 | 1983-04-15 | 光学的読取装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US4685147A (US07902200-20110308-C00004.png) |
JP (1) | JPS59191675A (US07902200-20110308-C00004.png) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63204484A (ja) * | 1987-02-20 | 1988-08-24 | Fujitsu Ltd | バ−コ−ドリ−ダ |
US5170277A (en) * | 1988-05-11 | 1992-12-08 | Symbol Technologies, Inc. | Piezoelectric beam deflector |
JPH01319882A (ja) * | 1988-06-20 | 1989-12-26 | Tokyo Electric Co Ltd | バーコード読取装置 |
US5138141A (en) * | 1988-12-05 | 1992-08-11 | Ncr Corporation | Method and apparatus for repeating the output of an optical scanner |
US5233171A (en) * | 1990-09-13 | 1993-08-03 | Minnesota Mining And Manufacturing Company | Optical reader with power isolation |
KR970004783A (ko) * | 1995-06-29 | 1997-01-29 | 음향 광학 동조 필터를 이용한 영상 투사 장치 | |
AU710515B2 (en) * | 1995-10-05 | 1999-09-23 | Digital Biometrics, Inc. | Gambling chip recognition system |
US20030174864A1 (en) * | 1997-10-27 | 2003-09-18 | Digital Biometrics, Inc. | Gambling chip recognition system |
US6532297B1 (en) | 1995-10-05 | 2003-03-11 | Digital Biometrics, Inc. | Gambling chip recognition system |
JP7193249B2 (ja) * | 2018-04-23 | 2022-12-20 | パーク二四株式会社 | 精算機用リーダモジュールおよび精算機 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5535696B2 (US07902200-20110308-C00004.png) * | 1972-05-31 | 1980-09-16 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3520586A (en) * | 1966-06-20 | 1970-07-14 | Ampex | Entrant beam optical scanner |
DE2449958B2 (de) * | 1973-10-23 | 1977-02-24 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka (Japan) | Code-lesevorrichtung |
JPS5535696U (US07902200-20110308-C00004.png) * | 1979-08-23 | 1980-03-07 | ||
JPS5793907U (US07902200-20110308-C00004.png) * | 1980-11-26 | 1982-06-09 | ||
US4577932A (en) * | 1984-05-08 | 1986-03-25 | Creo Electronics Corporation | Multi-spot modulator using a laser diode |
US4575623A (en) * | 1985-01-10 | 1986-03-11 | Ncr Corporation | Optical code scanner and display |
-
1983
- 1983-04-15 JP JP58065678A patent/JPS59191675A/ja active Granted
-
1984
- 1984-04-10 US US06/598,888 patent/US4685147A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5535696B2 (US07902200-20110308-C00004.png) * | 1972-05-31 | 1980-09-16 |
Also Published As
Publication number | Publication date |
---|---|
JPS59191675A (ja) | 1984-10-30 |
US4685147A (en) | 1987-08-04 |
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