CA2030100A1 - Scanning device - Google Patents
Scanning deviceInfo
- 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
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.
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) |
-
1990
- 1990-11-15 CA CA 2030100 patent/CA2030100C/en not_active Expired - Fee Related
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 |