SU448015A1 - Device for reading flat printed text - Google Patents
Device for reading flat printed textInfo
- Publication number
- SU448015A1 SU448015A1 SU1927577A SU1927577A SU448015A1 SU 448015 A1 SU448015 A1 SU 448015A1 SU 1927577 A SU1927577 A SU 1927577A SU 1927577 A SU1927577 A SU 1927577A SU 448015 A1 SU448015 A1 SU 448015A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- flat printed
- printed text
- text
- optical head
- reading flat
- Prior art date
Links
Landscapes
- Character Input (AREA)
- Facsimile Scanning Arrangements (AREA)
Description
1one
Изобретение относитс к медицинской технике .The invention relates to medical technology.
Извество устройство дл чтени плоскопечатного текста слабовид щими, содержащее передающую камеру, видеопросмотровое и сканирующее устройства.The history of the device for reading flat printed text is visually impaired, containing a transmitting camera, video viewing and scanning devices.
Однако такое устройство не обеспечивает посто нства фокусировки изображени текста на входной торец стекловолоконного жгута, что ведет к утомл емости слабовид щего.However, such a device does not provide a constant focusing of the image of the text on the input end of a glass fiber bundle, which leads to fatigue of the visually impaired.
С целью устранени указанных недостатков в предлагаемом устройстве сканирующее устройство выполнено в виде гибкого стекловолоконного жгута с малогабаритной оптической головкой, котора изготовлена в виде зеркально-линзовой системы с подсветом.In order to eliminate these drawbacks in the proposed device, the scanning device is made in the form of a flexible glass fiber bundle with a compact optical head, which is made in the form of a mirror-lens system with illumination.
На чертеже изображена принципиальна схема предлагаемого устройства дл чтени плоскопечатного текста слабовид щими.The drawing shows a schematic diagram of the proposed device for reading flat printed text with a visually impaired.
Устройство содержит гибкий стекловолоконный жгут 1; малогабаритную оптическую головку 2 с зеркально-линзовой системой и подсветкой, образованной объективом 3, зеркалом 4 и лампочками 5.The device contains a flexible glass fiber harness 1; small-sized optical head 2 with a mirror-lens system and illumination formed by lens 3, mirror 4 and light bulbs 5.
Устройство работает следующим образом.The device works as follows.
Свет, .отраженный от участка текста, через зеркало 4 и объектив 3 проецируетс на торцовую поверхность стекловолоконного жгута 1 и далее на светочувствительный слой передающей трубки (на чертеже не показана). Посто нно каса сь текста, малогабаритна оптическа головка 2 обеспечивает фиксированное рассто ние до объектива 3, что обеспечивает наилучшие услови фокусировки.Light reflected from a piece of text through the mirror 4 and the lens 3 is projected onto the end surface of the fiberglass bundle 1 and further onto the photosensitive layer of the transmitting tube (not shown in the drawing). Constantly touching the text, the compact optical head 2 provides a fixed distance to the lens 3, which provides the best focusing conditions.
. .
Предмет изобретени Subject invention
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1927577A SU448015A1 (en) | 1973-05-30 | 1973-05-30 | Device for reading flat printed text |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1927577A SU448015A1 (en) | 1973-05-30 | 1973-05-30 | Device for reading flat printed text |
Publications (1)
Publication Number | Publication Date |
---|---|
SU448015A1 true SU448015A1 (en) | 1974-10-30 |
Family
ID=20555282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1927577A SU448015A1 (en) | 1973-05-30 | 1973-05-30 | Device for reading flat printed text |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU448015A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4123465A1 (en) * | 1991-07-16 | 1993-01-21 | Bernd Kamppeter | Text-to-speech converter using optical character recognition - reads scanned text into memory for reproduction by loudspeaker or on video screen at discretion of user |
-
1973
- 1973-05-30 SU SU1927577A patent/SU448015A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4123465A1 (en) * | 1991-07-16 | 1993-01-21 | Bernd Kamppeter | Text-to-speech converter using optical character recognition - reads scanned text into memory for reproduction by loudspeaker or on video screen at discretion of user |
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