Vehicle air conditioning system with non-contact temperature sensor

An air conditioning system for a vehicle having a passenger compartment, comprising:

• a non-contact temperature sensor having a plurality of temperature detecting elements each of which generates an electrical signal in accordance with an amount of infrared rays, the non-contact temperature sensor being disposed to detect a predetermined region within the passenger compartment in a non-contact state using the temperature detecting elements;
• and
• a control unit which controls an air-conditioning state to be introduced into the passenger compartment based on a temperature signal from the non-contact temperature sensor, wherein:
• the non-contact temperature sensor include a lens through which the infrared rays pass;
• the lens is disposed to change a relative position with the temperature detecting elements;
• and
• the control unit changes the relative position of the lens with the temperature detecting elements to switch a first state of the non-contact temperature sensor, for detecting temperature of an entire area of the predetermined region, and a second state of the non-contact temperature sensor, for detecting temperature of a part area in the predetermined region.