Patent ID: 11963514
Assignee: BOWLING GREEN STATE UNIVERSITY
Field: Other special machines (Mechanical engineering)
Classification: CPC A | IPC A

Claim 21:
22. An apparatus comprising:
a platform supported on a floor, the platform defining a well;
a plurality of cells in the well, wherein each cell is defined by the floor and walls, and each cell is separated from one another;
a first light source slot in the floor being configured to house a first light source of a first color; and
a second light source slot in the floor being configured to house a second light source of a second color;
wherein the first light source slot and the second light source slot are positioned in the floor with respect to the plurality of cells such that a first light source of a first color disposed in the first light source slot may illuminate a first area of the floor inside at least one of the cells with the first color, and a second light source of a second color disposed in the second light source slot may illuminate a second area of the floor inside the at least one cell with the second color.