Abstract: A photographic device is configured to be assembled on a body of an unmanned vehicle. The photographic device includes a tripod head module, a camera module, a shock-absorbing module, and a detachable supporting plate. The tripod head module includes a first motor disposed along a first axis, a second motor disposed along a second axis, a third motor disposed along a third axis, and a connecting arm. The camera module is pivotally connected to the tripod head module via the connecting arm. The shock-absorbing module includes a frame and a plurality of shock-absorbing balls. The third motor and the shock-absorbing balls are assembled on the frame, and the shock-absorbing balls surround the third motor. The detachable supporting plate is disposed between the frame of the shock-absorbing module and the camera module, and there is a buffer distance between the frame and the detachable supporting plate.

Abstract: An optical diaphragm device includes: diaphragm blades each including a first fixing boss and a moving boss protruding from the other surface of a first planar plate toward a side in a second direction; light leakage prevention blades each having a second fixing boss and forming a pair with the diaphragm blade; a drive ring on which first cam grooves are formed; and a housing body capable of housing the diaphragm blades, the light leakage prevention blades, and the drive ring. A second cam groove is further formed in the light leakage prevention blade, the moving boss of the diaphragm blade is inserted into the second cam groove of the light leakage prevention blade, and is inserted into the first cam groove of the drive ring. The light leakage prevention blade has a light leakage prevention blade extending portion which extends toward the other side from the second fixing boss.

Abstract: A lens apparatus includes an imaging optical system, a storage unit configured to store aperture information about the imaging optical system, and a transmission unit configured to transmit the aperture information to an imaging apparatus, wherein the aperture information is determined based on a shape parameter representing a shape of an aperture which defines an outer edge of a light flux passing through the imaging optical system.

Abstract: A variable diaphragm is provided. The variable diaphragm includes: first and second substrates opposite to each other; a light detector on a side of the first substrate distal to the second substrate, and configured to detect an intensity of incident light and generate a first signal; an electrowetting microfluid medium layer between the first and second substrates, and including transparent and opaque fluid mediums immiscible with each other, wherein an aperture of the variable diaphragm is formed by the transparent fluid medium, and one of the transparent and opaque fluid mediums is conductive; and a driving electrode between the first and second substrates, and configured to receive a driving voltage corresponding to the first signal and for driving the electrowetting microfluid medium layer, so as to change an area of an orthographic projection of the opaque fluid medium fluid medium on the second substrate, thereby changing a diameter of the aperture.

Abstract: A camera casing comprising at least one front face. The front face comprises a first opening and is configured to securely fit with a camera. A flexible covering is attached to a perimeter of the front face, the covering having a service opening to provide access to an interior of the camera casing. The camera casing further includes a first retaining member arranged in the interior of the camera casing, the first retaining member configured to secure the camera to the front face.

Abstract: A modular track and dolly system for cinematography includes a set of detachable, human-portable track sections, each including a unitary rigid frame supporting first and second spaced apart guide rails and having at least at least one connection plate at each longitudinal end of the frame providing a precise joint interface surface for aligning adjacent track sections. The rigid frame may include a pair of longitudinally extending chords connected by perpendicular struts and two or more web members extending at an oblique angle relative to the chords and struts. Each track section may also include a lightweight subframe made up of an assembly of longitudinal members and lateral stringers connected together, with the rigid frame being supported on and attached to the subframe. A dolly for carrying a cinematography robot is guided by the guide rails and may include a motor-driven pinion that engages a rack on the track.

Abstract: A dome screen projection apparatus has screen members made of synthetic resin and detachably joined together to form a dome screen having a curved configuration. Frame members are detachably connected together to form a frame, and suspension members suspend the dome screen in a suspended condition from the frame. The frame members include frame column members disposed on the outside of the dome screen, one at each side of the dome screen and one at the rear of the dome screen, a frame beam member supported at opposite ends at upper portions of the two frame column members at each side of the dome screen and extending above the top front portion of the dome screen, and a frame arc-shaped beam member supported at upper portions of the frame column members. A projector is supported by the frame and projects an image on an inner face of the dome screen while the dome is in the suspended condition.

Abstract: Systems and methods are provided that facilitate high-sensitivity, carrier-resolved photo-Hall effect measurements. Majority and minority carrier properties can be measured and determined simultaneously. In one aspect, a system and method determine majority carrier type, density and mobility and, with modulated illumination, minority carrier mobility and photocarrier density. In another aspect, a system and method can determine hole and electron mobility, photocarrier density, absorbed photon density, recombination lifetime and diffusion length for hole, electron and ambipolar transport.

Abstract: Photography backdrop support apparatus and systems can include improvements in portability for a photographic backdrop support structures. In some embodiments, the improved photographic support structure can support up to three vertical surfaces around one horizontal surface. A photographic backdrop system support structure can be designed to support additional accessories and light sources to provide versatility in lighting and other photographic optimizations. Other attachable accessories can include a staging table, camera mount and/or lighting mount. The size and portability of the photographic backdrop system can be optimized in size and can be made to optimize the portability of the system while allowing for ample space to photograph objects the size of food such as fruit and vegetables, for example.

Abstract: The quick mounting structure includes a first connector, a second connector, and a self-locking mechanism; the self-locking mechanism is on the second connector, and the first connector is connected to the second connector through the self-locking mechanism; the self-locking mechanism includes a quick mounting block, a transmission arm, a locking block, a rotating shaft, and a first elastic member; the quick mounting block is connected to the first connector; the second connector is provided with a quick mounting groove, and all of the transmission arm, the locking block, the rotating shaft, and the first elastic member are arranged in the quick mounting groove; the transmission arm is rotationally connected to the second connector through the rotating shaft; the first elastic member is connected to the transmission arm or the locking block for enabling the locking block to be in a locked state in a normal state.

Abstract: A camera module includes a housing, a carrier, a frame, a lens holder, an autofocusing (AF) ball bearing, and an optical image stabilization (OIS) ball bearing. The carrier is coupled to the housing and configured to move in an optical axis direction. The frame is coupled to the carrier and configured to move in a first axis direction, perpendicular to the optical axis direction. The lens holder is coupled to the frame and configured to move in a second axis direction, perpendicular to the optical axis and the first axis. The AF ball bearing is disposed between the housing and the carrier. The OIS ball bearing is disposed on either one or both of the carrier and the frame, and the frame and the lens holder. Either one or both of the AF ball bearing and the OIS ball bearing have an elastic modulus of 20 GPa or less.

Abstract: An electronic module has an electronic element 210; a connection body 250 provided on a front face of the electronic element 210; and a detection part 100 having a winding wire part 10 provided so as to surround the connection body 250, and a winding return wire part 50 connected to a terminal end part of the winding wire part 10 and returns from the terminal end part toward a starting end part.

Abstract: A reflective transparent screen exhibiting high brightness over a wide region in the screen although with a narrow viewing angle, and an image display system is provided. The reflective transparent screen has a first transparent layer 32 having an irregular surface, a reflective layer 40 formed on the irregular surface, and a second transparent layer 52 formed on the irregular surface on which the reflective layer 40 is formed so as to fill irregularities. The irregular surface of the first transparent layer 32 has a slant angle in a first direction being within a range of from ?44? to +44?, and a slant angle in a second direction perpendicular to the first direction being within a range of from ?44? to +44?.

Abstract: A vehicle and a camera bracket include a lens hood which surrounds a detection space of an external environment detection camera, the lens hood includes a bottom surface forming part which forms a flat-shaped surface (a bottom surface) facing the detection space, the bottom surface extends to spread radially in the detection direction from the lens side and includes a reflected wave reducing structure on this bottom surface, and the bottom surface forming part includes a partition part that partitions the reflected wave reducing structure into a plurality of regions.

Abstract: The present disclosure is directed to a lens cap with an integrated iris that screws onto a camera lens. Once secured on a camera lens, the iris may be opened by rotating an outer edge of the lens cap in a first direction. When in an open position, the entire surface of the camera lens is free from obstruction and photos may be taken as if the lens cap were not even there. The iris can literally disappear within an edge of circular lens cap. By rotating the lens cap in an opposite direction, the lens may be completely covered by the integrated iris again. For example, the iris may be opened by rotating the lens cap in a clockwise direction and then closed again by rotating the lens cap in a counter clockwise direction. Once installed, this lens cap never has to be removed.

Abstract: A screen comprises the following layers sequentially stacked from an incident side of projected light rays: a micro-lens layer, a transparent matrix layer, a total internal reflection layer, and a light-absorbing layer. The light-absorbing layer absorbs light passing through the micro-lens layer, the transparent matrix layer, and the total internal reflection layer. The micro-lens layer comprises a plurality of micro-lens units. The total internal reflection layer comprises a plurality of microstructure units. The microstructure unit has a lower first flat surface and an upper second flat surface. The first flat surface intersects the second flat surface. The plurality of microstructure units forms a serrated structure. The micro-lens units and the microstructure units are at least partially arranged in an alternating manner. The projected light rays converged toward the first flat surface exit after being totally internally reflected by the first flat surface and the second flat surface sequentially.

Abstract: A projection screen includes a screen board, a connecting cloth, a screen frame, and at least one connecting member. The screen board has a first surface and a second surface opposite, the screen board has a light receiving region and an edge region surrounding the light receiving region. At least one edge of the connecting cloth protrudes from a corresponding edge of the screen board, and at least a portion of the second surface of the screen board located in the edge region is connected to the connecting cloth. The screen frame has a hollow structure, an orthographic projection of the screen board on a plane parallel to the first surface is located within an outer border of an orthographic projection of the screen frame on the plane. The at least one connecting member connects at least one edge of the connecting cloth to the screen frame.

Abstract: An operation unit includes an operation member, a gear portion provided on the operation member, a plurality of gears engaged with the gear portion and rotatable, and a plurality of magnets, each of which is provided to a corresponding one of the plurality of gears. The plurality of gears rotate so as to change an attractive force between the magnets, when a user operates the operation member.

Abstract: An apparatus and method of manufacturing an apparatus that includes a rectangular frame, a first load bearing conductive support bisecting the rectangular frame lengthwise, and two artificial muscle actuators disposed on the same sides of the rectangular frame as the first load bearing conductive support on opposite sides of the first load bearing conductive support is disclosed. The apparatus includes a non-conductive platform, where the width of the frame is sufficiently wide to prevent the non-conductive platform from touching the sides of the frame when rotated about the axis of the load bearing support. The apparatus includes a device disposed in the center of the non-conductive platform. Individual actuation of the artificial muscle actuators rotates the non-conductive platform about the axis of the first load bearing conductive support.

Abstract: A light shielding blade including a laminate in which a resin layer is sandwiched between two metal base materials, wherein the two metal base materials each have a specific rigidity of 20×106 [Pa·m3/kg] or more and a specific bending rigidity of 1.0 [Pa1/3·m3/kg] or more, and wherein the resin layer has an elastic modulus of 1 GPa or more and a thickness of 65 ?m or less.