One aspect of the present disclosure is an imaging system including an optical sensor defining an optical axis. The system further includes a light source. The system may include an optical beam splitter, and may also include an optional diffusing lens that may be configured to diffuse and/or collimate light from the light source and direct light exiting the diffusing lens to the optical beam splitter. The optical beam splitter is configured to direct light from the light source along the optical axis of the optical sensor.

Disclosed are a fill light device, a method for controlling a fill light device, and a computer readable storage medium. The fill light device includes a flash light; and a light guide, the light guide being located on a light-exiting side of the flash light and being configured to be controlled to change a shape and/or a light-transmitting area to change a light-exiting area and/or a light-emitting angle of the fill light device. The method includes obtaining a control parameter of the light guide; and changing a shape and/or a light-transmitting area of the light guide according to the control parameter to change a light-exiting area and/or a light-emitting angle of the fill light device.

A method includes capturing a first image of a scene, detecting a face in a section of the scene from the first image, and activating an infrared (IR) light source to selectively illuminate the section of the scene with IR light. The IR light source includes an array of IR light emitting diodes (LEDs). The method includes capturing a second image of the scene under selective IR lighting from the IR light source, detecting the face in the second image, and identifying a person based on the face in the second image.

A wastewater monitoring system uses a camera in a fixed location in a wastewater pipe that takes a still photograph of a location of interest at defined intervals, such as five minutes. The photographs are retrieved from the camera, and are then analyzed on a computer system that aggregates the still photographs into a video stream, allows a user to define an area of interest on one of the still photographs, then uses suitable algorithms or heuristics to detect changes between the photographs in the video stream. Video clips of interest are then generated using the detected changes, and are identified to a user so the user can review the video clips of interest to determine flows in the wastewater pipe that was monitored.

A fluorescent type of green light source of a semiconductor in a light source apparatus for an endoscope includes a blue excitation light source device and green emitting phosphor. The blue excitation light source device emits blue excitation light. The green emitting phosphor is excited by the blue excitation light, and emits green fluorescence. A dichroic filter in a dichroic mirror cuts off the blue excitation light from an emission spectrum of mixed light of the blue excitation light and green fluorescence from the fluorescent type of green light source. Thus, illumination light with the emission spectrum of a target can be stably supplied without influence of the blue excitation light to a light amount of blue light from a blue light source of a semiconductor.

An underwater diving light includes efficient cooling of LEDs and other internal electronics by heat transfer to ambient water. The water is in contact with a metallic face plate or puck that conducts heat via contiguous metal from an LED circuit board or LED face plate. Ambient water can enter the assembly to spaces between the face plate and an intermediary plate at the front of a housing to efficiently cool the LEDs and associated electronics. In a high-output form the light can emit 8000 lumens, and in this embodiment the battery is cooled by ambient water. The face plate or puck is interchangeable, for different lighting characteristics.

A housing for a high temperature video camera system includes a support and a conductor. The support has at least one compartment defined therein, the at least one compartment being airtight with respect to a support exterior and configured for accommodating at least one of a camera and a battery. A plurality of insulation layers is stacked in a linear direction to form the support, including the at least one compartment, where an outer periphery of each insulation layer of the plurality of insulation layers defines the support exterior. A conductor interposed between at least one pair of immediately adjacent insulation layers of the plurality of insulation layers and extends from the at least one compartment to the support exterior. The conductor connects a plurality of exterior lights disposed external to the support with a battery disposed in the at least one compartment.

A modular lighting fixture is provided for use in photographic chambers that provides a combination of high flux, the ability to place/tuck the lighting fixture against a wall, and the ability to flash/tune the lighting fixture dynamically. The lighting fixture is based on light emitting diode elements to provide an energy efficient light source that generates far less heat than traditional mercury arc based lamps. The lighting fixture is modular and can be daisy chained to supply power and/or control signals to multiple attached lighting fixtures. Individual lighting fixtures may be joined together to form an array of lighting fixtures. The lighting fixtures may utilize the digital multiplex DMX512 standard for digital communication networks for controlling the lighting elements within the fixtures. The lighting fixture has a light output that is capable of providing a wide beam angle.

A light emitting device includes a cover panel including a plurality of light emitting regions and a light source disposed on a surface of the cover panel to be adjacent to the plurality of light emitting regions. An optical portion is configured to emit light generated by the light source through the plurality of light emitting regions. A controller is configured to independently determine what light is emitted through each of the plurality of light emitting regions independently.

To increase the space efficiency of an imaging apparatus which deals with a speckle pattern. An imaging apparatus includes a first image sensor and a second image sensor. The first image sensor images light entering the first image sensor from an object through an optical system to generate image data of the object. The second image sensor images a speckle pattern formed by scattering of light striking the object to generate image data of the speckle pattern, the speckle pattern entering the second image sensor through the optical system. In the imaging apparatus, the first image sensor and the second image sensor are placed side by side in an optical axis direction of the optical system.