External detection see-through door and external detection see-through cabinet having same

An external detection see-through cabinet that stores objects, the external detection see-through cabinet comprising:

• a cabinet body configured to store objects;
• and
• an external detection see-through door installed on the cabinet body, the external detection see-through door including:
• a transmission window;
• a sensor configured to detect a specific external condition in front of the transmission window;
• a light emitting module configured to increase an amount of emitted light according to a signal from the sensor, which has detected the specific external condition, to increase an amount of light that is reflected from inside the cabinet and heads toward the transmission window;
• and
• an optical film that is provided on the transmission window and has a light transmittance that prevents the cabinet from being see-through from the outside before the sensor detects the specific condition and allows the cabinet to be see-through from the outside due to light that is reflected from inside the cabinet and transmitted through the transmission window and the optical film due to the light emitting module increasing the amount of emitted light according to the signal from the sensor that has detected the specific external condition.