CA2030100A1 - Scanning device - Google Patents

Scanning device

Info

Publication number
CA2030100A1
CA2030100A1 CA 2030100 CA2030100A CA2030100A1 CA 2030100 A1 CA2030100 A1 CA 2030100A1 CA 2030100 CA2030100 CA 2030100 CA 2030100 A CA2030100 A CA 2030100A CA 2030100 A1 CA2030100 A1 CA 2030100A1
Authority
CA
Canada
Prior art keywords
waveform
signal
mirror
actual
excitation
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
Application number
CA 2030100
Other languages
French (fr)
Other versions
CA2030100C (en
Inventor
Francois Blais
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.)
Minister of National Defence of Canada
Original Assignee
Francois Blais
Her Majesty The Queen, In Right Of Canada, As Represented By The Ministe R Of National Defence
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 Francois Blais, Her Majesty The Queen, In Right Of Canada, As Represented By The Ministe R Of National Defence filed Critical Francois Blais
Priority to CA 2030100 priority Critical patent/CA2030100C/en
Publication of CA2030100A1 publication Critical patent/CA2030100A1/en
Application granted granted Critical
Publication of CA2030100C publication Critical patent/CA2030100C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Facsimile Scanning Arrangements (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

A scanning device has a drive system to angularly reciprocate a rotatable mirror about an axis in a desired waveform in accordance with an excitation signal supplied by a programmable waveform generator. A position sensor generates a signal representing the actual waveform of reciprocation of the mirror, and a microprocessor determines a signal representing the error between the actual waveform and the desired waveform. The microprocessor includes a waveform optimizer that receives this error signal and delivers an excitation correction signal to the waveform generator to adjust the excitation signal from the waveform generator to cause the mirror to have an actual waveform substantially in accordance with the desired waveform.
CA 2030100 1990-11-15 1990-11-15 Scanning device Expired - Fee Related CA2030100C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2030100 CA2030100C (en) 1990-11-15 1990-11-15 Scanning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2030100 CA2030100C (en) 1990-11-15 1990-11-15 Scanning device

Publications (2)

Publication Number Publication Date
CA2030100A1 true CA2030100A1 (en) 1992-05-16
CA2030100C CA2030100C (en) 2000-08-08

Family

ID=4146446

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2030100 Expired - Fee Related CA2030100C (en) 1990-11-15 1990-11-15 Scanning device

Country Status (1)

Country Link
CA (1) CA2030100C (en)

Also Published As

Publication number Publication date
CA2030100C (en) 2000-08-08

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed