SU548875A1 - Device for reading optical information - Google Patents
Device for reading optical informationInfo
- Publication number
- SU548875A1 SU548875A1 SU2103464A SU2103464A SU548875A1 SU 548875 A1 SU548875 A1 SU 548875A1 SU 2103464 A SU2103464 A SU 2103464A SU 2103464 A SU2103464 A SU 2103464A SU 548875 A1 SU548875 A1 SU 548875A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- optical information
- reading optical
- domain
- plate
- reading
- Prior art date
Links
Description
Материал, из которого изготовл етс фоточувствительна пластина, должен обладать пороговой фототиристорной характеристикой, т. е. он не должен реагировать на фоновую засветку, св занную с пропусканием света системой пол ризатор - магиитна пластина (вне домена) - анализатор, но должен иметь линейную характеристику по световому иотоку , превышающему фон. В этих услови х величина выходного сигнала на клеммах 8 пропорциональна ркости изображени в месте расположени домена. Продвижение домена по схеме распространени осуидествл етс по стандартной методике с помош,ью вращающегос магнитного пол , приложенного в плоскости пластины 9.Введение нового блока позволило повысить точность предлагаемого устройства в 1,3-1,5 раза по сравнению с известными устройствами.The material from which the photosensitive plate is made must have a threshold photothyristor characteristic, i.e. it should not react to background illumination associated with the transmission of light by the polarizer – magical plate (outside domain) system — the analyzer, but must have a linear characteristic on the light and current exceeding the background. Under these conditions, the magnitude of the output signal at terminals 8 is proportional to the brightness of the image at the location of the domain. Promotion of the domain according to the distribution scheme is carried out according to the standard method using a rotating magnetic field applied in the plane of the plate 9. The introduction of a new unit improved the accuracy of the proposed device 1.3-1.5 times as compared with the known devices.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2103464A SU548875A1 (en) | 1975-02-07 | 1975-02-07 | Device for reading optical information |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2103464A SU548875A1 (en) | 1975-02-07 | 1975-02-07 | Device for reading optical information |
Publications (1)
Publication Number | Publication Date |
---|---|
SU548875A1 true SU548875A1 (en) | 1977-02-28 |
Family
ID=20609529
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2103464A SU548875A1 (en) | 1975-02-07 | 1975-02-07 | Device for reading optical information |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU548875A1 (en) |
-
1975
- 1975-02-07 SU SU2103464A patent/SU548875A1/en active
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