JPS55140815A - Optical reader - Google Patents

Optical reader

Info

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
Application number
JP5017879A
Other languages
Japanese (ja)
Inventor
Takaaki Okamoto
Shigeo Terajima
Shoichi Yasuda
Kimio Yatsunami
Seiji Amazaki
Masahiro Horii
Yoshihiko Iwamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to JP5017879A priority Critical patent/JPS55140815A/en
Publication of JPS55140815A publication Critical patent/JPS55140815A/en
Pending legal-status Critical Current

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
JP5017879A 1979-04-19 1979-04-19 Optical reader Pending JPS55140815A (en)

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)

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