4. Optics: image projectors
  5. Lamp control

Takeshi Takezawa

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Arrangement of &lgr;/2 retardation plate in projector

Liquid crystal cells – elements and systems – Liquid crystal system – Projector including liquid crystal cell
Reexamination Certificate

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Discharge lamp lighting device, control method thereof, and...

Electric lamp and discharge devices: systems – Discharge device load
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Discharge-lamp lighting apparatus and projector

Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
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Discharge-lamp lighting apparatus and projector

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

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Driving method and driving device for discharge lamp, light...

Electric lamp and discharge devices: systems – Periodic switch in the supply circuit – Silicon controlled rectifier ignition
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Profile ID: LFUS-PAI-P-2273448

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