Patent ID: 10845084

Abstract:
An air conditioner according to the present invention includes: a remote controller that transmits an infrared signal containing operation instruction information; and an air-conditioner main body. The air-conditioner main body includes a black window, a light-receiving element, and a white window. The black window allows the infrared signal to pass therethrough and has transmittance equal to or greater than a first value in a first wavelength range that is an infrared wavelength range. The light-receiving element receives the infrared signal. The white window is disposed between the black window and the light-receiving element and has transmittance equal to or greater than a second value in the first wavelength range, the second value being smaller than the first value. A ratio of transmittance of the white window in a second wavelength range to the transmittance of the white window in the first wavelength range is smaller than a ratio of transmittance of the black window in the second wavelength range to the transmittance of the black window in the first wavelength range, the second wavelength being a range of wavelengths shorter than the wavelengths in the first wavelength range.