LCD video projector
Patent 5895110 Issued on April 20, 1999. Estimated Expiration Date: 
December 4, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 4, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesVideo projector lens angulation mechanism Mechanism for moving a projection lens assembly to alter projecting magnification Projecting method for picture display apparatus Video projector with monitor screen Projection apparatus LCD projector with retractable projection lens assembly Patent #: 5642927 InventorsAssigneeApplicationNo. 984800 filed on 12/04/1997US Classes:353/31, Multicolor picture353/101Lens position adjustableExaminersPrimary: Metjahic, SafetAssistant: Nguyen, Huy Attorney, Agent or FirmForeign Patent References
International ClassesG03B 021/00G03B 003/00 Foreign Application Priority Data1996-12-06 JPAbstractA nut 13 is provided on a holding board 9 of a barrel 8 housing a projection lens. At both sides of a holding base 11 are supporting plates 12 having a stepping shape for presenting a sliding gap, and the holding board 9 is inserted in the sliding gap. At an upper corner of the holding base 11 is a pivot pedestal 14, and a shift rod 15 is attached revolvable to the pivot pedestal 14, the shift rod 15 having a screw portion 16 that engage with the nut 13. The projection lens moves up and down driven via nut 13 by revolution of the shift rod 15, for the height adjustment of projection lens. | |
