JPS56101654A - Information reader - Google Patents
Information readerInfo
- Publication number
- JPS56101654A JPS56101654A JP425580A JP425580A JPS56101654A JP S56101654 A JPS56101654 A JP S56101654A JP 425580 A JP425580 A JP 425580A JP 425580 A JP425580 A JP 425580A JP S56101654 A JPS56101654 A JP S56101654A
- Authority
- JP
- Japan
- Prior art keywords
- disk
- information
- array
- constitution
- patterns
- 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.)
- Pending
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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
Abstract
PURPOSE:To increase the volume of memory information with simple constitution by optically reading recording information on a disk. CONSTITUTION:On the surface of transparent disk 1, information patterns 2 formed of substances differing in light transmissivity and drawn concentrically to form tracks 3-1, 3-2,.... Disk 1 is rotated by motor 4 and irradiated with light source 5 from its reverse surface. Transmitted light of disk 1 is focused by lens 6 and images of respective patterns 2 are formed on array 7 consisting of plural photodetectors 7-1, 7-2,... provided in the diameter direction of disk 1. The photodetection surface of array 7 and the surface of disk 1 conjugate and information on each track is read independently by the corresponding detector and outputted via switch 8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP425580A JPS56101654A (en) | 1980-01-18 | 1980-01-18 | Information reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP425580A JPS56101654A (en) | 1980-01-18 | 1980-01-18 | Information reader |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56101654A true JPS56101654A (en) | 1981-08-14 |
Family
ID=11579423
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP425580A Pending JPS56101654A (en) | 1980-01-18 | 1980-01-18 | Information reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56101654A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60163237A (en) * | 1984-02-06 | 1985-08-26 | Asahi Optical Co Ltd | Optical information reproducing device |
JPS60173724A (en) * | 1984-02-18 | 1985-09-07 | Asahi Optical Co Ltd | Optical information reproducing device |
JPS61168140A (en) * | 1985-01-22 | 1986-07-29 | Soron Kk | Reader for laser card |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4960505A (en) * | 1972-10-09 | 1974-06-12 | ||
JPS5119728A (en) * | 1974-07-19 | 1976-02-17 | Shinetsu Chemical Co | Aminokishikio jusuru jukikeisokagobutsuno seizohoho |
-
1980
- 1980-01-18 JP JP425580A patent/JPS56101654A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4960505A (en) * | 1972-10-09 | 1974-06-12 | ||
JPS5119728A (en) * | 1974-07-19 | 1976-02-17 | Shinetsu Chemical Co | Aminokishikio jusuru jukikeisokagobutsuno seizohoho |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60163237A (en) * | 1984-02-06 | 1985-08-26 | Asahi Optical Co Ltd | Optical information reproducing device |
JPS60173724A (en) * | 1984-02-18 | 1985-09-07 | Asahi Optical Co Ltd | Optical information reproducing device |
JPS61168140A (en) * | 1985-01-22 | 1986-07-29 | Soron Kk | Reader for laser card |
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