Illuminated drinking vessel

A drinking vessel for containing a liquid beverage to be consumed therefrom, said drinking vessel comprising:

• a waterproof double-walled body member having a bottom portion and a peripheral side wall portion upwardly extending from said bottom portion, said double-walled body member defining an enclosed hollow space therewithin;
• illumination means and a flexible substrate supporting said illumination means both disposed in said enclosed hollow space;
• a source of electrical energy to said illumination means, said source of electrical energy disposed in said enclosed hollow space;
• and
• a power switch mounted to said bottom portion of said double-walled body member and including a mechanical switch pin extendable from and retractable into said bottom portion;
• said mechanical switch pin operable between a first position, in which said mechanical switch pin being retracted into said bottom portion and said power switch being in an electrically open state in which said source of electrical energy being disconnected from said illumination means, and a second position, in which said mechanical switch pin being extended from said bottom portion and said power switch being in an electrically closed state in which said source of electrical energy being electrically connected with said illumination means;
• said power switch being in said first position when said drinking vessel is disposed on a supporting surface;
• said power switch being in said second position when said drinking vessel is lifted from the supporting surface;
• said mechanical switch pin of said power switch spring biased to said second position.