Search Images Maps Play YouTube News Gmail Drive More »
Advanced Patent Search | Web History | Sign in

Patents

Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US406191114 Apr 19766 Dec 1977Audio Visual Innovators CorporationAutomatically switched spare lamp for a light projector
US414212925 May 197727 Feb 1979Victor Hasselblad ABLamp changing system for projectors
US43504176 Mar 198121 Sep 1982Strong Electric CorporationApparatus to control light intensity from arc lamp
US451823321 Dec 198321 May 1985General Audio-Visual Inc.Automatic lamp changer for modular slide projector
US640935026 Oct 200025 Jun 2002Matsushita Electric Industrial Co., Ltd.LCD projector
US661129321 Dec 200026 Aug 2003DFR2000, Inc.Method and apparatus for synchronization of ancillary information in film conversion
US672442021 Dec 200020 Apr 2004DFR2000, Inc.Portable film conversion device
US682901221 Dec 20007 Dec 2004DFR2000, Inc.Method and apparatus for a digital parallel processor for film conversion
US686491321 Dec 20008 Mar 2005Method and apparatus for a reconfigurable digital processor for film conversion
US689156221 Dec 200010 May 2005Stuart T. Spence
Harry L. Tarnoff
Optical design for film conversion device
US751362730 Dec 20057 Apr 2009Honeywell International Inc.Image projection system with vibration compensation