JPS55140815A - Optical reader - Google Patents
Optical readerInfo
- Publication number
- JPS55140815A JPS55140815A JP5017879A JP5017879A JPS55140815A JP S55140815 A JPS55140815 A JP S55140815A JP 5017879 A JP5017879 A JP 5017879A JP 5017879 A JP5017879 A JP 5017879A JP S55140815 A JPS55140815 A JP S55140815A
- Authority
- JP
- Japan
- Prior art keywords
- pulse width
- control means
- reflecting mirror
- inclination
- constitution
- 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
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
PURPOSE: To accurately inclination-control a reflecting mirror only by the simple digital circuit and obtain always accurate scanning track by so constituting the reflecting mirror that it may be inclination-controlled by pulse width modulating current.
CONSTITUTION: The information associated to the position of the scanning window 4 assigned by a CPU3 is next counted by an address counter 5. when the output thereof is led into a control means 12, the control means 12 outputs the current of the specified pulse width according to the information of the address counter 5. The signal of the specified pulse width out from the control means 12 is applied to a transistor TR, then the transistor TR is put in the driven state, by which the galvanomirror 13 of the constitution comprising mounting a reflecting mirror body at the end of a coil is controlled of its angle of inclination according to the output of the trasistor Tr.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5017879A JPS55140815A (en) | 1979-04-19 | 1979-04-19 | Optical reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5017879A JPS55140815A (en) | 1979-04-19 | 1979-04-19 | Optical reader |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55140815A true JPS55140815A (en) | 1980-11-04 |
Family
ID=12851936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5017879A Pending JPS55140815A (en) | 1979-04-19 | 1979-04-19 | Optical reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55140815A (en) |
-
1979
- 1979-04-19 JP JP5017879A patent/JPS55140815A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4528444A (en) | Optical reading apparatus with automatic gain control circuit | |
JPS5330223A (en) | Automaitc code reading unit | |
ATE128254T1 (en) | DIGITAL CLOCK BUFFER CIRCUIT WITH ADJUSTABLE DELAY. | |
JPS57152074A (en) | Bar code reader | |
FR2704328B1 (en) | Auto focus device. | |
FR2662316B1 (en) | CONTROL SIGNAL PRODUCTION DEVICE. | |
CA2028640A1 (en) | Method and apparatus for compensating for shutter speed variations | |
JPS55142307A (en) | Optical axis position correcting device | |
JPS55140815A (en) | Optical reader | |
JPS5714983A (en) | Control device for starting position of picture recording | |
ATE175507T1 (en) | MICRO COMPUTER BUS CONTROL SYSTEM | |
JPS5628868A (en) | Form slide displacement accomodation device in light beam recording device | |
JPS57127360A (en) | Reader of picture information | |
JPS57138615A (en) | Optical scanning device | |
EP0371800A3 (en) | An image reading system | |
JPS55143683A (en) | Optical reader | |
JP3016589U (en) | prepaid card | |
JPS5354425A (en) | Optical reading scanner | |
JPS5694376A (en) | Image recording apparatus | |
JPS52146523A (en) | Light scanner | |
NO911215L (en) | AA PROGRAMMER GIVES BINARY OUTPUT SIGNALS IN ACCORDANCE WITH A RATE SIGNAL. | |
JPS5290956A (en) | Code reader | |
SU842699A1 (en) | Threshold former | |
KR900003282Y1 (en) | Head adjustment circuit in disk driver | |
JPS52152245A (en) | Optical reader |