Provided herein are devices for enhancing the quality of photo shooting using a camera integrated into a handheld smart device, such as a smartphone. An external lighting device comprises a base plate removably securable to a mount on the smart device, a connecting structure disposed at the edge of the top surface of the base plate and a ring-like turntable rotatably connected on the base plate via the connecting structure and a plurality of LED lights on the top surface of the turntable. When secured on the body of the smart device, the ring-like turntable rotates to a position where the LED lights surround the cameras to provide adjustable lighting. Further provided is a handheld camera system comprising a smart device, the external lighting device as described above and a protective case with a mount to attached to the lighting device.

A semiconductor light source includes at least one first emission unit, at least one second emission unit, and an optics, wherein the optical system has an inner region that converges radiation from the first emission unit, the optical system has an outer region that expands radiation from the second emission unit, a first light emission region of the inner region completely covers the first emission unit when viewed in plan view, and at least partially covers the second emission unit, a second light emission region of the outer region is partially or completely beside the second emission unit when viewed in plan view, and the inner region and the outer region have differently shaped light entry regions.

Provided is an illumination lens, including: a lens portion provided in a substantially central portion of a plate surface of a plate-like member; a flat portion provided in a region other than a region of the lens portion of the plate surface; and a reflection suppression structure configured to suppress total reflection of light inside, the reflection suppression structure being provided in at least one of the flat portion and a side end portion. The illumination lens enables emitting light having a more favorable characteristic with a simpler configuration.

A flash device for a camera includes a light source unit and a driving unit. The light source unit includes a plurality of light emitting devices, each of which is configured to output light of different colors. The driving unit is configured to drive a first light emitting device among the plurality of light emitting devices when the camera images a subject to obtain a first image, and drive a second light emitting device different from the first light emitting device among the plurality of light emitting devices when the camera images the subject to obtain a second image.

A method for capturing and consolidating multi-spectral image data for regions of interest using one or more spectral boost mechanisms or techniques is disclosed. A first multi-spectral or hyperspectral workflow comprising time-stamped two-dimensional pixelated images of a region of interest is obtained by a first computer-enabled imaging device. Each of the images corresponds to image data captured for a respective frequency band of a plurality of frequency bands. First meta data is associated with the images of the first workflow and includes: a plurality of first positions and first orientations of the first imaging device indicating first positional and orientation data for the first imaging device, and indications of a respective frequency band for each of the images of the first workflow. A consolidated multi-spectral workflow for the region of interest is generated, which includes spectrally and spatially consolidating the images of the first workflow using the first meta data.

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 telescopic bendable support structure includes a telescopic connecting pipe assembly, wherein the telescopic connecting pipe assembly comprises a first pipe, a second pipe and a first bendable connection assembly, wherein the first bendable connection assembly comprises a first pivot part and a second pivot part, the first pivot part comprises a first pivot portion and a first connection portion connected with the first pivot portion, the first connection portion is accommodated in one end of the first pipe to be connected with the first pipe; the second pivot part comprises a second pivot portion and a second connection portion, the second connection portion is configured to be connected with the second pipe, the second pivot portion is configured to be pivotably connected with the first pivot portion.

Introduced here are computer programs and associated computer-implemented techniques for achieving high-fidelity color reproduction in the absence of any known reflectance spectrums. That is, high-fidelity color reproduction can be achieved without portable references, such as gray cards and color checkers. To accomplish this, a new reference spectrum—the “reference illuminant spectrum”—is introduced into scenes to be imaged by image sensors. The reference illuminant spectrum is created by a multi-channel light source whose spectral properties are known.

An illumination system is provided for an optical system that includes an imaging device for acquiring an image of a target, for decoding of a symbol or other analysis. The illumination system can include a first light source configured to provide illumination of a first wavelength, a second light source configured to provide illumination of a second wavelength that is different from the first wavelength. The light sources can be controlled for operations that include: illuminating the target with the first and second light sources simultaneously for acquisition of the image of the target; and altering an illumination output of at least one of the first light source or the second light source, while maintaining non-zero illumination output for at least one of the first light source or the second light source, to indicate a status of the optical system.

Methods and systems for color error correction for a segmented LED array are disclosed. A method includes calculating a target luminance for LED segments in a segmented LED array based on an initial luminance pattern, determining a luminance ratio based on the target luminance, the luminance ratio defined as a ratio of a primary luminance value of the primary LED segment to a secondary luminance value of the at least one adjacent LED segment, and comparing the luminance ratio to a predefined threshold ratio. If the luminance ratio is greater than or equal to the predefined ratio, then the secondary luminance value of the at least one adjacent LED segment is maintained. If the luminance ratio is less than the predefined ratio, then the secondary luminance value of the at least one adjacent LED segment is increased.