JPS5528171A - Optical information reader - Google Patents
Optical information readerInfo
- Publication number
- JPS5528171A JPS5528171A JP10102478A JP10102478A JPS5528171A JP S5528171 A JPS5528171 A JP S5528171A JP 10102478 A JP10102478 A JP 10102478A JP 10102478 A JP10102478 A JP 10102478A JP S5528171 A JPS5528171 A JP S5528171A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- light
- black
- filter
- output
- 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
- 230000003287 optical effect Effects 0.000 title 1
- 238000010521 absorption reaction Methods 0.000 abstract 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 abstract 2
- 229910052721 tungsten Inorganic materials 0.000 abstract 2
- 239000010937 tungsten Substances 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
Landscapes
- Character Input (AREA)
Abstract
PURPOSE: To obtain the output of high contrast, by reading in the in formation recorded on the specific information recording sheet with specific black ball point pen after photo electric conversion through the combination of the tungsten lamp and CCD.
CONSTITUTION: In reading in the information on the sheet 10 radiating light from the tungsten lamp 11 on it and striking the reflected light on the CCD image sensor 13 via the image forming lens 11, the plate 23 providing the heat absorption filter 21 and the neutral density filter 22 between the sheet 10 and the lens 11 is located movably. Further, when the heat absorption filter 21 is located on the light paht, the information recorded on the sheet 10 taking the clor of red or the like as dropout color in a black ball point pen or black pencil is read in, and also the read- in of the information recorded in a black pencil on the sheet 10 taking the color other than red or the like as the dropout color is enabled on the filter 22 located on the light path, to output the output signal of high contrast.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10102478A JPS5528171A (en) | 1978-08-19 | 1978-08-19 | Optical information reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10102478A JPS5528171A (en) | 1978-08-19 | 1978-08-19 | Optical information reader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5528171A true JPS5528171A (en) | 1980-02-28 |
| JPS6244308B2 JPS6244308B2 (en) | 1987-09-19 |
Family
ID=14289620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10102478A Granted JPS5528171A (en) | 1978-08-19 | 1978-08-19 | Optical information reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5528171A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7090056B2 (en) | 2019-09-06 | 2022-06-23 | 株式会社フジクラ | Optical fiber, laser generator, laser processing device, and method for manufacturing optical fiber |
-
1978
- 1978-08-19 JP JP10102478A patent/JPS5528171A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6244308B2 (en) | 1987-09-19 |
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