Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2011-03-29
2011-03-29
Pham, Hai C (Department: 2861)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
C347S247000
Reexamination Certificate
active
07916162
ABSTRACT:
A light output device includes: an output unit including a light source; a control voltage generation unit that detects output power of the light source, and generates a control voltage for controlling a drive current of the light source; a control unit that sets a target value of the output power; a voltage-current conversion unit that converts the control voltage into the drive current; a setting unit that sets an inclination of a characteristic line of control voltage-drive current conversion in the voltage-current conversion unit; and an adjustment unit that adjusts the voltage-current conversion unit such that the drive current becomes a target current value for setting the output power to the target value in a predetermined control voltage value on the characteristic line, wherein the setting unit sets the inclination of the characteristic line to a first inclination where the drive current does not reach a maximum current value.
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Banner & Witcoff , Ltd.
Brother Kogyo Kabushiki Kaisha
Pham Hai C
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