Abstract: An electronic device includes a projector, an operating method of an electronic device including a projector, and a non-transitory computer-readable recording medium having recorded thereon instructions for performing the operating method. The electronic device includes a communicator configured to exchange data with an external device, a projector configured to project light; a sensor configured to measure a degree of proximity between the electronic device and an installation surface on which the electronic device is to be installed, and a controller configured to control the communicator and/or the projector based on the degree of proximity measured by the sensor.

Abstract: An electronic device including an optical module, a method of operating the electronic device including the optical module, and a non-transitory computer-readable recording medium having recorded thereon a program for performing the method. The electronic device includes an optical module configured to project content on a projection surface and a processor configured to determine whether the electronic device is positioned within a predetermined range of a projection surface and control the optical module to project the content onto the projection surface based on the determination.

Abstract: A projection lens system which is arranged between an object side at which a micro-display panel is located and an image side at which a screen is located, and includes an aperture stop; a front lens group arranged at an object-side of the aperture stop and having a positive refractive power; a rear lens group arranged at an image-side of the aperture stop, the rear lens group including a first aspherical lens at a position closest to the image side and a second aspherical lens adjacent to an object-side surface of the first aspherical lens; and an aspherical mirror having a negative refractive power and reflecting light coming from the rear lens group toward the image side.

Abstract: A projection lens system which is arranged between an object side at which a micro-display panel is located and an image side at which a screen is located, and includes an aperture stop; a front lens group arranged at an object-side of the aperture stop and having a positive refractive power; a rear lens group arranged at an image-side of the aperture stop, the rear lens group including a first aspherical lens at a position closest to the image side and a second aspherical lens adjacent to an object-side surface of the first aspherical lens; and an aspherical mirror having a negative refractive power and reflecting light coming from the rear lens group toward the image side.

Abstract: A method and apparatus for providing information about a plurality of wireless charging pads to an electronic device such that the electronic device performs wireless charging efficiently is provided. The method includes receiving information about the plurality of wireless charging pads and displaying the information about the plurality of wireless charging pads on a screen of the electronic device.

Abstract: An electronic device includes a projector, an operating method of an electronic device including a projector, and a non-transitory computer-readable recording medium having recorded thereon instructions for performing the operating method. The electronic device includes a communicator configured to exchange data with an external device, a projector configured to project light; a sensor configured to measure a degree of proximity between the electronic device and an installation surface on which the electronic device is to be installed, and a controller configured to control the communicator and/or the projector based on the degree of proximity measured by the sensor.

Abstract: An electronic device including an optical module, a method of operating the electronic device including the optical module, and a non-transitory computer-readable recording medium having recorded thereon a program for performing the method. The electronic device includes an optical module configured to project content on a projection surface and a processor configured to determine whether the electronic device is positioned within a predetermined range of a projection surface and control the optical module to project the content onto the projection surface based on the determination.

Abstract: A method and apparatus for providing information about a plurality of wireless charging pads to an electronic device such that the electronic device performs wireless charging efficiently is provided. The method includes receiving information about the plurality of wireless charging pads and displaying the information about the plurality of wireless charging pads on a screen of the electronic device.