The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 16, 1988
Filed:
Dec. 05, 1986
Brian J Fitzpatrick, Ossining, NY (US);
North American Philips Corporation, New York, NY (US);
Abstract
A method for selectively applying light-absorbing particles to a lenticular, light-transmissive screen, such as a projection television screen. The particles are charged and are selectively deposited in grooves between lenticules of the screen by electrically charging the lenticule peaks to the same polarity, to effect repulsion, and then depositing the particles onto the screen. The particles consist essentially of a material having a substantially higher microwave absorption coefficient than the screen material and have heat-fusible outer surfaces. After deposition, the particles are selectively heated by generally-applied microwave radiation, until they fuse to each other and to the screen.