The present disclosure provides 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. In this way, the light-exiting area and/or the light-emitting angle of the fill light device can be controlled to meet the fill light requirements in different capturing scenarios.

A camera is usable to observe a switched position of a switch contact of a switchgear apparatus. In an embodiment, the camera includes a light source to illuminate the switch contact, an image sensor, and a lens to focus light beams emanating from the switch contact onto the image sensor. In an embodiment, the camera additionally includes an elastic light protection cap to seal off a beam path, from the lens to the image sensor, from the light source in a lightproof manner.

Introduced here are computer programs and associated computer-implemented techniques for determining reflectance of an image on a per-pixel basis. More specifically, a characterization module can initially acquire a first data set generated by a multi-channel light source and a second data set generated by a multi-channel image sensor. The first data set may specify the illuminance of each color channel of the multi-channel light source (which is configured to produce a flash), while the second data set may specify the response of each sensor channel of the multi-channel image sensor (which is configured to capture an image in conjunction with the flash). Thus, the characterization module may determine reflectance based on illuminance and sensor response. The characterization module may also be configured to determine illuminance based on reflectance and sensor response, or determine sensor response based on illuminance and reflectance.

The present disclosure relates in general to a diagnostic device for inspection of an enclosed tube system, and more particular, to obtain images or video of the interior of the enclosed tube system while the diagnostic device is attached to a moveable member and traveling through the enclosed tube system. A diagnostic apparatus including camera housing configured to include a camera assembly, battery housing configured to hold a battery assembly, and a main housing configured to be detachably secured to a moveable member, wherein the camera housing and battery assembly are secured to the main housing, and wherein the main housing includes at least one light.

A light source device includes a plurality of light emitting parts, a first lens, and an optical lens. Each light emitting part is configured to emit light from the light emitting surface at a first full-width half-maximum and is configured to be individually turned on. The optical lens has a first surface including incident regions and a second surface including emission regions. A minimum distance between the first surface of the optical lens and the first lens is 0.1 mm or more and 1.0 mm or less. A light emitted from each of the light emitting parts enters the optical lens through the first lens, the light being emitted from the first lens at a second full-width half-maximum smaller than the first full-width half-maximum, such that lights emitted from two or more of the light emitting parts are irradiated to two or more corresponding irradiation regions.

A light-adjustment module for camera includes a light source unit and a light-adjustment unit. The light source unit includes light-emitting elements disposed around a lens of the camera, and the light-emitting direction of each light-emitting element is parallel to the image-capturing direction of the lens. The light-adjustment unit is disposed above the light source unit and includes secondary optical elements respectively corresponding to the light-emitting elements. Each secondary optical element includes a light-transmitting cover, and each light-emitting element is accommodated inside the corresponding light-transmitting cover. An inner wall of each light-transmitting cover includes a first light-guiding inclined surface and a second light-guiding inclined surface. A first slope of the first light-guiding inclined surface is different from a second slope of the second light-guiding inclined surface. A light emitted by each light-emitting element is deflected through the corresponding first light-guiding inclined surface and the corresponding second light-guiding inclined surface.

Methods, systems, and apparatus are provided for manufacturing a flash module. In some implementations, the method includes mounting at least one LED module on a top portion of a first substrate for providing light. A lens portion is mounted on a second substrate in a first region of the second substrate. The lens portion illuminates the light from the at least one LED module and the second substrate comprises the first region having a first diameter and a second region for providing a path for the illuminating light having a second diameter. The first diameter is greater than the second diameter. The second substrate is mounted on the first substrate. A substance is applied to a top portion of the second substrate from an end of the first diameter to the end of the second diameter and to a side portion of the second substrate in the second region.

A mobile device including: at least an imaging element; and a light-emitting device that irradiates a subject in accordance with imaging of the imaging element, in which the light-emitting device includes a semiconductor light-emitting element, and the difference of the normalized spectral power distribution at a wavelength of 580 nm and a value B representing a difference between normalized spectral power distributions in a wavelength range from 540 nm to 610 nm and a wavelength range from 610 nm to 680 nm are appropriate values. By providing a wavelength control element, it is possible to improve the color reproducibility and the like of a captured image. The mobile device achieves both sensitivity improvement and color reproducibility in a trade-off relationship.

The present disclosure relates to optical systems, vehicles, and methods that are configured to illuminate and image a wide field of view of an environment. An example optical system includes a camera having an optical axis and an outer lens element disposed along the optical axis. The optical system also includes a plurality of illumination modules, each of which includes at least one light-emitter device configured to emit light along a respective emission axis and a secondary optical element optically coupled to the at least one light-emitter device. The secondary optical element is configured to provide a light emission pattern having an azimuthal angle extent of at least 170 degrees so as to illuminate a portion of an environment of the optical system.

Introduced here are computer programs and associated computer-implemented techniques for determining reflectance of an image on a per-pixel basis. More specifically, a characterization module can initially acquire a first data set generated by a multi-channel light source and a second data set generated by a multi-channel image sensor. The first data set may specify the illuminance of each color channel of the multi-channel light source (which is configured to produce a flash), while the second data set may specify the response of each sensor channel of the multi-channel image sensor (which is configured to capture an image in conjunction with the flash). Thus, the characterization module may determine reflectance based on illuminance and sensor response. The characterization module may also be configured to determine illuminance based on reflectance and sensor response, or determine sensor response based on illuminance and reflectance.