| 主权项 |
1. A medical products storage device comprising
a refrigeration system, a cabinet defining a storage space, a door coupled to the cabinet, the door movable between a first position allowing access to the storage space and a second position, the door including a window having a glass comprising a plurality of liquid crystal molecules, substantially all of the glass being opaque when the liquid crystal molecules are deenergized and all of the glass being transparent when the liquid crystal molecules are energized, a controller, the controller operable to selectively energize the liquid crystal molecules in the glass, and a user interface, the user interface operable to determine an authorization level of the user by detecting a signal identifying the user, wherein the controller is operable to energize the liquid crystal molecules in the glass if the authorization level of a user qualifies the user to view the products in the storage space. |
