Invention Grant
- Patent Title: Method of driving discharge lamp, driving device, and projector
- Patent Title (中): 驱动放电灯，驱动装置和投影仪的方法
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Application No.: US13396916Application Date: 2012-02-15
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Publication No.: US08344645B2Publication Date: 2013-01-01
- Inventor: Takeshi Takezawa , Kentaro Yamauchi
- Applicant: Takeshi Takezawa , Kentaro Yamauchi
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Agency: AdvantEdge Law Group, LLC
- Priority: JP2008-049293 20080229
- Main IPC: H05B41/16
- IPC: H05B41/16 ; H05B41/36
Abstract:
In at least one embodiment of the disclosure, a method for driving a discharge lamp includes changing a duty ratio of an AC current to be supplied between a first electrode and a second electrode of the discharge lamp in accordance with a predetermined pattern, and setting a current value when the first electrode operates as an anode during one cycle so as to be smaller than a current value when the second electrode operates as an anode during one cycle.
Public/Granted literature
- US20120169247A1 METHOD OF DRIVING DISCHARGE LAMP, DRIVING DEVICE, AND PROJECTOR Public/Granted day:2012-07-05
Information query
