Baseball strike indicator
First Claim
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1. An apparatus for visually indicating if a thrown object of known dimensions passes through a preselected volume, comprising:
- a first light source for emitting an array of spaced-apart parallel, distinct light beams of a first color in a first direction;
a second light source for emitting an array of spaced-part parallel, distinct light beams of a second color different from said first color in a second direction such that the light beams from the first and second light sources intersect entirely within the preselected volume, the spacing of the light beams being such that light beams from each of said first and second light sources will shine simultaneously on the thrown object when the object is within the preselected volume so as to provide a visual indication that the object is within the preselected volume.
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Abstract
Light indication apparatus for baseball includes a first light source for emitting first coherent and intense light rays of a first color in a first direction and a second light source for emitting second coherent and intense light rays of a second color in a second direction. The first and second light rays intersect entirely within a preselected volume. A baseball can be identified by an observer of said first and second light rays as being substantially within said volume when said first and second light rays shine on said object simultaneously.
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Citations
18 Claims
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1. An apparatus for visually indicating if a thrown object of known dimensions passes through a preselected volume, comprising:
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a first light source for emitting an array of spaced-apart parallel, distinct light beams of a first color in a first direction; a second light source for emitting an array of spaced-part parallel, distinct light beams of a second color different from said first color in a second direction such that the light beams from the first and second light sources intersect entirely within the preselected volume, the spacing of the light beams being such that light beams from each of said first and second light sources will shine simultaneously on the thrown object when the object is within the preselected volume so as to provide a visual indication that the object is within the preselected volume. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for visually indicating if a thrown object of known dimensions passes through a variable preselected volume, comprising:
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a first light source for emitting variably-spaced first laser generated rays of a first color in a first direction; and a second light source for emitting second laser-generated rays of a second color different from said first color in a second direction; wherein said first and second light rays intersect entirely within the variable preselected volume, and an object having sufficiently large dimensions can be identified visually by an observer as being substantially within said volume when said first and second light rays shine on said object simultaneously. - View Dependent Claims (15, 16, 17, 18)
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Specification