The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 10, 1987
Filed:
Aug. 14, 1985
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A sawtooth voltage waveform for driving a galvanometer mirror is applied until the voltage reaches a peak value exceeding a prescribed voltage value at which the galvanometer mirror is angularly displaced through a maximum angle at one stroke end of reciprocating angular movement thereof. The voltage is then changed from the peak value to the prescribed voltage value after the galvanometer mirror has been angularly displaced through the maximum angle. The voltage is kept at the prescribed voltage value for a time interval to attain a desired period of the reciprocating angular movement of the galvanometer mirror. The voltage may be increased along a ramp or reduced along a fall toward the peak value.