Coherent light generators – Particular component circuitry – For driving or controlling laser
Reexamination Certificate
2007-09-11
2007-09-11
Pham, Hai (Department: 2853)
Coherent light generators
Particular component circuitry
For driving or controlling laser
C347S224000, C347S252000
Reexamination Certificate
active
11167196
ABSTRACT:
A semiconductor laser driving circuit for driving a semiconductor laser as an exposure light source is used in an image recording apparatus for recording an image using a light beam from the laser. The light beam emitted from the laser is subjected to pulse modulation in correspondence with a command signal. The circuit includes an error amplifier for amplifying a difference between the command signal and a signal fed back from the laser to output an output signal, a diode and a resistor connected in series between an input terminal and an output terminal of the error amplifier and a driver for driving the laser based on the output signal.
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Kondou Kiyoshi
Masuda Tadashi
Morimoto Yoshinori
Saito Ken-ichi
Suzuki Yoichi
Fuji Film Corp.
Martinez, Jr. Carlos A.
Pham Hai
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