Spatula-shaped light pen
First Claim
Patent Images
1. A spatula-shaped light pen, comprising:
- (a) at least three optical fibers (2) having light receiving ends arranged in a generally elongate array;
(b) a light receiving element (3) having a light receiving surface operatively coupled to opposite ends of said optical fibers; and
(c) a selectively adjustable light intercepting plate (4A) movably disposed over the light receiving ends of said optical fiber for intercepting light incident upon said array.
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Accused Products
Abstract
A light pen is provided with an elongated or spatula-shaped light receiving end which houses a plurality of optical fiber tubes in either a linear or two-dimensional array. The device is useful for simultaneously reading the coordinates of a plurality of points within a single scan period of a CRT image produced using the NTSC system. A slideable light interceptor may be provided in the operator of the light pen so as to limit the size or the proportion of the array receiving incident light.
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Citations
4 Claims
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1. A spatula-shaped light pen, comprising:
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(a) at least three optical fibers (2) having light receiving ends arranged in a generally elongate array; (b) a light receiving element (3) having a light receiving surface operatively coupled to opposite ends of said optical fibers; and (c) a selectively adjustable light intercepting plate (4A) movably disposed over the light receiving ends of said optical fiber for intercepting light incident upon said array. - View Dependent Claims (2, 3, 4)
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Specification