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:
Dec. 02, 1997
Filed:
Jan. 27, 1995
Ronald P Gale, Sharon, MA (US);
Richard McCullough, Wrenthem, MA (US);
Jack P Salerno, Waban, MA (US);
Stephen D Fantone, Lynnfield, MA (US);
Robert Park Forsyth, Lexington, MA (US);
Peter T Carellas, Winchester, MA (US);
Michael J Thomas, Needham, MA (US);
Roy L Youman, Newton, MA (US);
Kopin Corporation, Taunton, MA (US);
Abstract
A rear projection monitor having a housing with reduced depth is disclosed. Images produced by liquid crystal active matrices are illuminated by a light source. The images are enlarged and projected by a projection lens having a large rear focus. A mirror reflects the projected images onto a viewing screen. The mirror is positioned between 36.degree. and 45.degree. in relation to the viewing screen. The back of the housing is adjacent to and slopes at the same angle as the mirror. The depth of the projection monitor is between 33% to 41% of the diameter of the viewing screen.