| 摘要 |
This invention provides a public aquarium with improved features for permitting the viewing public observers to better see aquatic life in the aquarium in its natural state. This structure includes a specially constructed and lighted viewing chamber and viewing window interface. In particular, a public aquarium is specially constructed with a viewing window interface construction optimizing viewing conditions for the observers and reducing maintenance of the aquarium by keeping the inner window surface more algae free. Thus, in a preferred embodiment a lens-like curved viewing window is focally directed toward an optically blackened surface and is oriented at an off-vertical slant to a vertical aquarium wall in the vicinity of an observer station to limit reflections of direct light rays off the window toward an observer when looking into the aquarium. The lens curves inwardly into the tank water to permit thinner window structure further improving visibility yet withstanding water pressure and expediting water seals. Lighting in the viewing chamber outside the aquarium structure is constructed to prevent intrusion of outside lighting into the tank, where it might form algae on the window or interfere with viewing of the aquatic life in the tank.
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