An electronic device comprises a light-emitting information receiving circuit and a color correction processing circuit. The light-emitting information receiving circuit is configured to be electrically connected to a color correction detection device to receive light-emitting information of an external flash detected by the color correction detection device. The color correction processing circuit is electrically connected to the light-emitting information receiving circuit to perform color correction processing according to the light-emitting information so as to generate color correction result information, the color correction result information being configured to be transmitted to the external flash to correct the light emission of the external flash. Moreover, provided is a color correction system of the external flash.

An illumination apparatus that emits light from a light source using accumulated electric energy and that performs wireless communication with another illumination apparatus via a communication unit includes a capacitor that accumulates the electric energy used to emit light from the light source, a detection unit that detects a charge state of the capacitor, and a notification unit that performs notification indicating information indicating that the illumination apparatus is in a flash available state and notification indicating information indicating that both the illumination apparatus and the other illumination apparatus are in a flash available state in a distinguishable manner in accordance with information on the other illumination apparatus received by the communication unit and a result of the detection performed by the detection unit.

A stable inspection tool and method for inspecting electrical manhole vaults and other structures. The tool and method of the present invention eliminates the need for physical entry into underground electrical manhole vaults and other underground structures when inspecting the structure or when identifying, tracing and mapping existing conductor and conduit locations. Further, improved images of the structure may be obtained without entering the structure.

A remote control is described for controlling at least one group of flash devices for photography. The remote control is configured to send a pre-flash trigger signal, T.sub.PF, to the flash devices for initiating a pre-flash (PF), and to receive, from the camera, a flash adjustment value, VA. The remote control comprises a display and is configured to determine a main flash strength value, V.sub.MF, based on a pre-flash strength value, V.sub.PF, stored in the remote control, the flash adjustment value, VA, and a predetermined relationship between the pre-flash strength value, V.sub.PF, the flash adjustment value, VA, and the main flash strength value, V.sub.MF. The remote control displays the main flash strength value, V.sub.MF, on a display and sends a wireless main flash trigger signal, T.sub.MF, to the flash devices, for initiating a main flash, MF, with adjusted flash strengths.

A color correction processing apparatus comprises a first communication circuit, a color correction processing circuit and a second communication circuit, wherein the first communication circuit is used for receiving digital quantity data of light-emission information of an external flash; the color correction processing circuit is electrically connected to the first communication circuit, so as to receive the digital quantity data of the light-emission information by means of the first communication circuit, and carries out color correction processing according to the digital quantity data of the light-emission information to generate color correction result information; and the second communication circuit is used for electrically connecting to the external flash, and the second communication circuit transmits the color correction result information to the external flash, so as to correct light emission of the external flash.

Described herein are high intensity illumination systems including lighting arrays of lights, such as light emitting diodes, configured to illuminate a surface. The lighting arrays are configured to illuminate the surface with illumination comparable to or multiple times brighter than the ambient illumination, such as sunlight. Also described herein are methods of using a high intensity illumination system to illuminate a surface for applications including imaging, object detection, and object localization. The systems and methods described herein may be applied to a range of industries including farming, agriculture, construction, and autonomous vehicles.

An external flash comprising a light source assembly, a driving circuit, a first communication circuit and a color correction processing circuit, wherein the light source assembly comprises one or more LED light sources; the driving circuit is used for driving the light source assembly to emit light; the first communication circuit is used for communicating with a terminal device, so as to receive a color correction control instruction sent by the terminal device; the color correction processing circuit is connected to the driving circuit and is electrically connected to the first communication circuit; the color correction processing circuit receives the color correction control instruction transmitted by the first communication circuit, and performs color correction processing on light-emission information of the light source assembly to generate color correction result information; and the driving circuit drives, according to the color correction result information, the light source assembly to emit light.

A camera system includes a camera, a first light source, and a second light source. A main optical axis of the first light source intersects with a main optical axis of the second light source at an intersection point, and the intersection point is not located within a depth of field of the camera.

A color correction device comprises a light-emission information collection circuit, a first communication circuit and a color correction processing circuit, wherein the light-emission information collection circuit is used for collecting light-emission information of an external flash; the first communication circuit is used for communicating with a terminal device, so as to receive a color correction control instruction sent by the terminal device; the color correction processing circuit receives the color correction control instruction transmitted by the first communication circuit and then performs color correction processing on the basis of the light-emission information to generate color correction result information; and the color correction result information is used for being transmitted to the external flash so as to correct light-emission of the external flash. The color correction device can be used for color correction of the external flash.

The present invention makes it possible to perform good illumination and obtain a good captured image when a plurality of users each having a camera-equipped portable information terminal device gather in the same place. A camera-equipped portable information terminal device is provided with: an imaging unit that captures an image of a subject; a first illumination means for illuminating the subject; a first communication unit that communicates with other portable information terminal devices; and a first control unit that controls the imaging unit and the first communication unit. The first control unit transmits a light emission instruction signal to the other portable information terminal devices via the first communication unit, and causes a second illumination means of each of the other portable information terminal devices to emit light in tandem with an imaging operation of the imaging unit.