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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.:

US 4688093 B1

PDFFull Text
Date of Patent:
Aug. 18, 1987

Filed:

Jul. 30, 1986

Transmission projection screen and method of manufacturing same

Applicant:
Inventors:

Caspert G van der Staak, Eindhoven, NL;

Johannes C van de Ven, Eindhoven, NL;

Assignee:

U.S. Philips Corporation, New York, NY (US);

Attorneys:

Briody; Thomas A.

Streeter; William J.

Rich; Marianne R.

Primary Examiner:

Richard A Wintercorn

Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
350128 ; 350126 ;
Abstract

The invention relates to a transmission projection screen having a high light output and a suitable contrast, for example for use in a projection television system, and a method of manufacturing such a screen. The projection screen comprises a transparent substrate having a front surface which is provided with mutually parallel ribs 2. At the bottom of the grooves 4 between the ribs 2 two individual layers of light-absorbing particles 11 and 12 are provided. The said particles are fixed by means of an adhesive layer 14.

Find Patent Forward Citations

van der Staak, Caspert. (1987). Transmission projection screen and method of manufacturing same (U.S. Patent No. 4688093). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4688093

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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