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:
Jul. 10, 2007
Filed:
May. 31, 2005
Tetsuya Masumura, Suita, JP;
Tetsuya Masumura, Suita, JP;
Matsushita Toshiba Picture Display Co., Ltd., Osaka, JP;
Abstract
When we let the aspect ratio of the fluorescent screen of a cathode ray tube be M:N and, in a coordinate system in which the origin is a point on the tube axis and the horizontal axis and vertical axis intersect at right angles, when we let LA be the horizontal radius of the outer surface of a cone component, SA be the vertical radius, and θ be the angle formed by a horizontal axis H and an axis D in the direction of the maximum diameter on the inner surface of the cone component, then when the position Z on the tube axis, using as its origin a reference line position that serves as a reference for a deflection angle, is within a range of −30 mm≦Z≦10 mm, a portion is included such that the angle θ and the values of M, N, LA(Z), and SA(Z) satisfy the relational formula θ=tan[(N/M)×(LA(Z)/SA(Z))].