Electronic apparatus

An electronic apparatus comprising:

• an imaging device which converts light of an effective image area incident on the imaging device into an image signal;
• a lens unit which is positioned in front of the imaging device to form an image on the imaging device from light incident from an object through the lens unit;
• a shutter unit which is interposed between the lens unit and the imaging device to expose the imaging device to the light incident from the object based on a predetermined exposure time, and comprises a shutter curtain that regulates the light incident from the object, and a base plate and a cover plate which are positioned in front of and behind the shutter curtain, respectively, and each of which has an aperture that forms the effective image area;
• and
• a measurement unit which measures an actual exposure time of the shutter unit;
• wherein the measurement unit is positioned behind the shutter curtain, and comprises a light-receiving sensor which receives light incident on the measurement unit from the light incident from the object through the lens unit other than the light of the effective image area incident on the imaging device, and a first optical window that guides the light incident from the object through the lens unit to the light-receiving sensor is provided outside the aperture of the base plate and a condenser lens which focuses light incident through the first optical window on the light-receiving sensor is provided in the first optical window.