Baseball strike indicator

Details Baseball strike indicator Baseball strike indicator

1999-09-16

2000-12-12

Chapman, Jeanette

Games using tangible projectile

Playing field or court game; game element or accessory...

Practice or training device

473152, 473155, A63B 6900

Patent

active

061591130

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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