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US 2004/0167747 A1Published application
Laser diode management apparatus and method
AssigneesFujitsu Limited, Fujitsu Frontech Limited
InventorsMitsuo Watanabe, Isao Iwaguchi, Hideo Miyazawa, Kozo Yamazaki, Masanori Ohkawa
Life of this patent
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Abstract
A time for replacement of a laser diode is decided based on a value of operating current of the laser diode and a value of intensity of laser light output from the laser diode.
Claims11
A laser diode management apparatus decides a time to replace a laser diode, comprising:
- an operating-current value acquiring unit that acquires a value of an operating current of the laser diode;
- a laser intensity acquiring unit that acquires a value of intensity of laser light output from the laser diode;
- and
- a replacement period determining unit that determines a replacement period of the laser diode based on the value of the operating current and the values intensity of the laser light, and outputs at least one of a first notification that indicates that the laser diode needs replacement and a second notification that indicates that the laser diode needs replacement in near future, based on a result of the determination.
1 more element
A laser diode management apparatus decides a time to replace a laser diode, comprising:
- an operating-current value acquiring unit that acquires a value of an operating current of the laser diode;
- a laser intensity acquiring unit that acquires a value of intensity of laser light output from the laser diode;
- and
- a replacement period determining unit that determines a replacement period of the laser diode based on the value of the operating current and the values intensity of the laser light, and outputs at least one of a first notification that indicates that the laser diode needs replacement and a second notification that indicates that the laser diode needs replacement in near future, based on a result of the determination.
1 more element
A method of management of a time to replace a laser diode, comprising:
- acquiring a value of an operating current of the laser diode;
- acquiring a value of intensity of laser light output from the laser diode;
- and
- determining when the laser diode need replacement based on the value of the operating current and the values intensity of the laser light acquired.
1 more element
Dependencies are inferred from the claim text.