Photographing apparatus for vehicle and heating device

A photographing apparatus for vehicle comprising:

• a photographing apparatus that is disposed inside a vehicle so as to face a window of the vehicle and is configured to receive photographing light passing through the window;
• heating means that is disposed inside the vehicle so as to face the window, the heating means generating heat that is given to the window when voltage of an electric power source of the vehicle is applied to the heating means;
• and
• a control device changing voltage application time that is time period for applying the voltage of the electric power source to the heating means in predetermined period of time based on magnitude of a heat generation amount determination factor affecting temperature of the window at start time of the predetermined period of time,
• wherein,
• the control device is configured to execute either a first processing or a second processing when a specific condition is satisfied until when the predetermined period of time elapses from the start time of the predetermined period of time,
• the specific condition is satisfied when the magnitude of the heat generation amount determination factor deviates from the magnitude of the heat generation amount determination factor at the start time of the predetermined period of time by a predetermined value or more,
• the first processing is a processing to stop applying the voltage to the heating means until when the predetermined period of time elapses,
• the second processing is a processing to change the voltage application time based on the magnitude of the heat generation amount determination factor at the time when the specific condition is satisfied.