| 摘要 |
A T-ball training system helps batters develop focus during ball hitting as well as timing skills and uses a tee that shines a light out of the top of the tee. A ball has a light tunnel therein that has a 90-degree bend, so that when the light shines out of the top, the light enters the tunnel at one end and is issued out of the other end, visible to the batter. The light is activated for a certain time interval such that the batter is expected to hit the ball whenever the light is on. The control system of the light can be either directly on the tee or can be assisted by a wireless transmitter. A second light can be provided that also issues light out of the top of the tee, this second light issuing a different color than the first and being on whenever the first light is off and being off whenever the first light is on.
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