Method for acquiring image corresponding to infrared rays by using camera module comprising lens capable of absorbing light in visible light band and electronic device implementing same

Abstract

According to an embodiment of the disclosure, an electronic device includes a light source unit to emit infrared light having a specified wavelength band, a camera module, a memory, and a processor, the camera module includes a lens assembly including a first lens having a property to at least partially absorb visible light and one or more second lenses to refract light, which is output through the first lens, at a specified angle, a filter to pass through light, which has the specified wavelength band, of the light output through the lens assembly, and an image sensor to sense light, which is output through the lens assembly and the filter, to obtain an image, and the processor is configured to receive an input of a user to photograph an external object, emit the infrared light using the light source unit based on the input of the user, and obtain, using the camera module, an image corresponding to light, which is reflected from the external object, of the emitted infrared light.