Nail polish curing device

A nail polish curing device comprising:

• a lower part having a top surface, a front wall that is formed with a lower front opening, and a recess-defining surface that extends downwardly from said top surface and that defines a lower recess;
• an upper part disposed above said lower part and pivoted to said lower part so as to be rotatable relative to said lower part about an axis between first and second angular positions, said upper part having a bottom surface, a front wall that is formed with an upper front opening, and a recess-defining surface that extends upwardly from said bottom surface and that defines an upper recess;
• a circuit board mounted on said upper part;
• and
• at least one light emitting element mounted on and electrically connected to said circuit board and exposed to said upper recess for emitting light into said upper recess;
• wherein when said upper part is disposed at the first angular position relative to said lower part, said upper and lower recesses overlap along a vertical direction and cooperate with each other to define an accommodating space in said nail polish curing device, and said upper and lower front openings overlap along the vertical direction and cooperate with each other to define an inlet opening of said nail polish curing device that is in spatial communication with said accommodating space, thereby permitting insertion of one finger of a user into said accommodating space via said inlet opening and enabling the fingernail of said one finger to be spaced apart from said light emitting element by substantially a predetermined distance in the vertical direction when said one finger is placed on said recess-defining surface of said lower part with the fingernail facing upwardly, the vertical direction being parallel to the axis;
• and
• wherein when said upper part is disposed at the second angular position relative to said lower part, said upper and lower recesses do not overlap along the vertical direction, and said upper and lower front openings do not overlap along the vertical direction, thereby facilitating insertion of one toe of one foot of the user into an irradiating space between said bottom surface of said upper part and a reference surface on which the foot rests and permitting the toenail of said one toe to be spaced apart from said light emitting element in the vertical direction by substantially a distance close to the predetermined distance.