4. Optics: image projectors
  5. Lamp control

Kazuo Okawa

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Ballast and projector

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition
Reexamination Certificate

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Circuit for driving light source, projector, method for...

Electric lamp and discharge devices: systems – Current and/or voltage regulation
Reexamination Certificate

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Discharge lamp lighting apparatus and discharge lamp apparatus

Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
Reexamination Certificate

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Discharge lamp lighting apparatus and discharge lamp apparatus

Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
Reexamination Certificate

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Discharge lamp lighting device and projector

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Impedance or current regulator in the supply circuit
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2273449

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