Patent ID: 8809789

Claim:
An air conditioner including an infrared sensor, the infrared sensor comprising: a multi-element light-receiving unit formed of a plurality of light-receiving elements aligned on a straight line; and a condenser lens; wherein the multi-element light-receiving unit is disposed at a position of receiving infrared rays which have passed through the condenser lens; and a position of receiving an intensity distribution peak of the infrared rays which have passed through the condenser lens is deviated from the center of the multi-element light-receiving unit; wherein the air conditioner is installed indoors; wherein the plurality of light-receiving elements forming the multi-element light-receiving unit are arranged in a vertical direction with respect to an indoor floor surface; and wherein an intersection between the multi-element light-receiving unit and a perpendicular line from a focal point of the condenser lens to the multi-element light-receiving unit is located at a position of approximately a lower one-fifth of the whole length of the multi-element light-receiving unit.