Invention Grant
- Patent Title: DLP projector and method for projecting at least one image onto a projection surface
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Application No.: US14367249Application Date: 2012-12-19
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Publication No.: US09699875B2Publication Date: 2017-07-04
- Inventor: Juergen Mueller , Norbert Magg
- Applicant: OSRAM GmbH
- Applicant Address: DE Munich
- Assignee: OSRAM GmbH
- Current Assignee: OSRAM GmbH
- Current Assignee Address: DE Munich
- Agency: Viering, Jentschura & Partner mbB
- Priority: DE102011089592 20111222
- International Application: PCT/EP2012/076214 WO 20121219
- International Announcement: WO2013/092750 WO 20130627
- Main IPC: G03B21/20
- IPC: G03B21/20 ; H04N9/31 ; H05B41/288

Abstract:
Various embodiments relates to a DLP (digital light processing) projector for projecting at least one image on a projection surface. A discharge lamp is driven by a current waveform having at least one first region, to which a first frequency is assigned, and a second region, to which a second frequency is assigned, wherein the first region is established by a first commutation and a following second commutation, wherein the second region is established by the region between the second commutation and a following first commutation, wherein further commutations can occur within the second region, wherein a modulation factor is defined by the ratio of second frequency to first frequency, wherein the modulation factor is at least 3. A method for projecting at least one image is also disclosed.
Public/Granted literature
- US20140340656A1 DLP PROJECTOR AND METHOD FOR PROJECTING AT LEAST ONE IMAGE ONTO A PROJECTION SURFACE Public/Granted day:2014-11-20
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