Method of controlling exposure time by using infrared light, computer-readable storage medium having recorded thereon computer program codes for performing the method, and electronic apparatus having photographing function

摘要

An electronic apparatus having a photographing function includes: a flash that emits light including a visible light wavelength range and an infrared wavelength range and radiates the light onto a subject; an infrared detector that absorbs light in the infrared wavelength range and generates a detection signal corresponding to the light; an image sensor that photoelectrically transforms incident light and generates an image signal; and a controller that controls an exposure time of the image sensor based on the detection signal.

主权项

1. An electronic apparatus having a photographing function, comprising:
a flash that emits light including a visible light wavelength range and an infrared wavelength range and radiates the light onto a subject; an infrared detector that absorbs light in the infrared wavelength range and generates a detection signal corresponding to the light in the infrared wavelength range; an image sensor that photoelectrically transforms incident light in the visible light wavelength range and generates an image signal; and a controller that controls an exposure time in which the image sensor is exposed to the incident light based on the detection signal, wherein, when an increment in the detection signal generated by the infrared detector, compared to a case in which the emission of the flash is not performed, reaches a threshold value, the controller stops exposure of the image sensor.