Abstract: A projector is provided, which includes a light source for emitting incident light rays, a pancake lens assembly, and optical element assembly for forming a pattern by the incident light rays emitted from the pancake lens assembly. A pancake lens assembly includes a polarizer, a wave plate, and a lens connected to the polarizer or the wave plate. The pancake lens assembly is disposed between the light source and the optical element assembly and configured to fold light path of the incident light rays based on the polarization of the incident light rays in order to reduce the total module height of the projector.

Abstract: An apparatus comprising a first electrical oscillator, a second electrical oscillator, at least one ferroelectric capacitor coupled between the first electrical oscillator and the second electrical oscillator, a ferroelectric capacitor of the at least one ferroelectric capacitor comprising a first terminal, a second terminal, and a ferroelectric material between the first terminal and the second terminal; and a detector coupled to the first electrical oscillator and second electrical oscillator, the detector to produce an output based on a state of the first electrical oscillator and the second electrical oscillator.

Abstract: A light source module having a wide field of view (FOV) is provided. The light source module includes a plurality of point light sources and a total internal reflection (TIR) lens array. The point light sources are configured to respectively emit a plurality of light beams. The TIR lens array is disposed on paths of the light beams and includes a transparent substrate and a plurality of TIR lenses arranged on the transparent substrate. The transparent substrate is located between the point light sources and the TIR lenses. Each of the TIR lenses has an inclined surface inclined with respect to the transparent substrate, and inclined surfaces of the TIR lenses are configured to totally internally reflect the light beams to form the wide FOV.

Abstract: An optical module and a related projector are disclosed. The optical module includes a light source and an optical structure. The light source emitting a light, and the optical structure is disposed on the light source for receiving the light. The optical structure includes a first surface and a second surface. The first surface is configured to deflect the light. The second surface has a plurality of microstructures and is configured to project a predetermined pattern when the light passing through the second surface, and the second surface corresponds to the first surface.

Abstract: A multiple cation-doped perovskite compound includes a perovskite represented by a formula of ABX3. A includes M1, M2, and M3. M1 represents a cation different from M2 and M3; M2 represents a cesium ion and M3 represents a formamidinium ion. B represents a divalent cation different from M1, M2, and M3. X includes at least two different halide ions. In addition, the perovskite compound is free from methylamine ion. A perovskite solar cell including the multiple cation-doped perovskite compound is also provided.

Abstract: A transparent antenna is provided. A transparent antenna includes a transparent dielectric substrate, a plurality of antenna conductive layers, a feeding layer and a plurality of grounding layers. The antenna conductive layers are disposed on a first surface of the transparent dielectric substrate. The feeding layer is disposed on the first surface of the transparent dielectric substrate and is connected to the antenna conductive layers. Each of the antenna conductive layer, the feeding layer and the grounding layer is a mesh structure. The antenna conductive layers and the grounding layers corresponding thereto form a plurality of antenna units. The antenna conductive layers of the antenna units are not all the same; or the grounding layers of the antenna units are not all the same.

Abstract: The disclosure describes an antenna that is formed from a continuous material according to some embodiments. In some embodiments, the antenna includes a plurality of individual antenna modules each formed from the continuous material. In some embodiments, each antenna module is configured to resonate at a plurality of frequencies. In some embodiments, each antenna module is configured to receive a voltage and/or current from a single feeder. In some embodiments, each of the antenna modules are effectively electrically isolated from each other. In some embodiments, each antenna module includes one or more driven portions and one or more parasitic portions. In some embodiments, the one or more driven portions are configured and/or arranged to induce a voltage in the one or more parasitic portions.

Abstract: A semiconductor device structure and a formation method are provided. The method includes forming a protruding structure over a substrate. The protruding structure has multiple sacrificial layers and multiple semiconductor layers, and the sacrificial layers and the semiconductor layers have an alternating configuration. The method also includes forming a gate stack to wrap a portion of the protruding structure. The method further includes forming an epitaxial structure abutting edges of the semiconductor layers. The formation of the epitaxial structure includes forming a lower semiconductor portion on a bottom of the recess and forming an upper semiconductor portion over the lower semiconductor portion. The upper semiconductor portion and the lower semiconductor portion are oppositely doped.

Abstract: A pixel array may include a metal shielding structure on a grid structure between pixel sensors in the pixel array. The metal shielding structure laterally extends outward from the grid structure to reflect photons of incident light that might otherwise travel between the grid structure and the isolation structure of the pixel sensors in the pixel array. The lateral extensions of the metal shielding reflect these photons to reduce crosstalk between adjacent pixel sensors, thereby increasing the performance of the pixel array.

Abstract: A contactor includes an enclosed space containing an arc extinguishing medium or a vacuum, separated into two chambers by a movable contact head connected with hollow contact units enabling the two chambers to communicate; at least one of the chambers is provided with a static contact head connected with contact units; the movable contact head implements reciprocal movement, the contact units of the movable contact head are engaged with and disengaged from the contact units of the static contact head, and the two chambers are alternately compressed and expanded, wherein the arc extinguishing medium flows back and forth at arc gaps between the movable contact head and the static contact head through the hollow contact units and circulates between the two chambers, providing a contactor and a self-circulating reciprocal synchronous arc extinguishing pump thereof, to turn ON, turn OFF of the contactor and implement a synchronous arc extinguishing.

Abstract: The invention provides a touch display panel and a manufacturing method therefor. The touch display panel comprises a substrate; a display region disposed on the substrate; a first touch electrode disposed in the display region; a second touch electrode disposed in the display region; and a third touch electrode disposed in the display region, the first touch electrode, the second touch electrode and the third touch electrode arranged adjacently, and the third touch electrode and the second touch electrode electrically disconnected; wherein the second touch electrode is electrically connected to the first touch electrode, and an area of the third touch electrode is greater than an area of the first touch electrode and/or an area of the second touch electrode.

Abstract: An ultra-wideband antenna device includes a radiation metal body, a first slotted hole, a second slotted hole, a third slotted hole, a fourth slotted hole, a ground point, and a feeding source. The radiation metal body includes a first side edge and a second side edge opposite to each other and a third side edge and a fourth side edge opposite to each other, the first slotted hole extends inward from the first side edge, the second slotted hole extends inward from the second side edge, the third slotted hole extends inward from the third side edge, and the fourth slotted hole extends inward from the fourth side edge. The ground point is located at a middle position of the radiation metal body, and the feeding source is located on the radiation metal body and away from the middle position.

Abstract: A portable confocal optical scanning microscopic device includes an optical path module, a light source module, a light receiving module and an object stage, wherein the optical path module includes a beam splitter and a focusing lens; the light source module includes a light generator for generating an incident light and can be injected into the beam splitter; the light receiving module includes a spatial filter; the object stage is for setting a test specimen. The optical path module, the light source module, the light receiving module, and the object stage can be disassembled and assembled on the operating board to flexibly configure an adaptive combination capable of performing the optical scanning.

Abstract: A playback mode switching method includes a multimedia playback apparatus establishing an index table corresponding to a plurality of preset keyword data and a plurality of playback modes, the multimedia playback apparatus playing multimedia content, the multimedia playback apparatus extracting a frame image from the multimedia content and generating a query information to query a network artificial intelligence model, the network artificial intelligence model transmitting a first keyword data back to the multimedia playback apparatus according to the query information, and the multimedia playback apparatus analyzing the first keyword data and the index table to determine whether to perform a mode switching operation for adjusting a playback parameter setting of the multimedia content.

Abstract: A motor stator winding structure includes a stator core and slot-positions. The stator core includes an insertion side and an extension side. The hairpin wires are configured to be arranged into slot-positions of the phase slots of the same phases of the polar regions. A first phase winding includes first hairpin wires of the hairpin wires inserted from an entry phase slot-position of a first phase. A second phase winding includes second hairpin wires of the hairpin wires inserted from an entry phase slot-position of a second phase. A third phase winding includes third hairpin wires of the hairpin wires inserted from an entry phase slot-position of a third phase. The entry phase slot-position of the first phase, the entry phase slot-position of the second phase and the entry phase slot-position of the third phase are located in three different polar regions respectively.

Abstract: Disclosed herein are compositions and methods for aiding in the treatment of various reversible and irreversible neurodegenerative diseases. In some embodiments, poly(?-benzyl-L-glutamate)(PBG) and/or its hydrolyzed copolymer (poly(?-benzylglutamate) 80-r-(?-glutamic acid)20)(PBGA) may be used to make the disclosed fibrous scaffolds, for one example by use of an electrospinning process. The disclosed materials may be biocompatible molecules, for example polypeptides. In some embodiments the disclosed materials may contain a neurotransmitter, in one embodiment glutamate. In some embodiments, the disclosed scaffolds may consist of one or more aligned fibers. In some embodiments, the scaffold may include one or more active compounds. In some embodiments, the active compound may be neuroprotective, for example a neuroprotective antibiotic. In some embodiments, the active compound may be minocycline hydrochloride (MH). In many embodiments, the disclosed scaffold may aid in stabilizing the active compound.

Abstract: A pixel array may include a metal shielding structure on a grid structure between pixel sensors in the pixel array. The metal shielding structure laterally extends outward from the grid structure to reflect photons of incident light that might otherwise travel between the grid structure and the isolation structure of the pixel sensors in the pixel array. The lateral extensions of the metal shielding reflect these photons to reduce crosstalk between adjacent pixel sensors, thereby increasing the performance of the pixel array.

Abstract: A method includes forming a first material layer on a semiconductor wafer, the first material layer comprising a first periodic structure within an overlay mark region of the semiconductor wafer and forming a second material layer on the semiconductor wafer, the second material layer comprising a second periodic structure in the overlay mark region. The method further includes with an acoustic transmitter device disposed within the overlay mark region, transmitting an acoustic wave across both the first periodic structure and the second periodic structure. The method further includes, with an acoustic wave receiver device, detecting the acoustic wave and determining an overlay error between the first material layer and the second material layer based on the acoustic wave as detected by the acoustic wave receiver device.

Abstract: The present disclosure provides a transformer module and a power module, wherein the transformer module comprises: a magnetic core, a first wiring layer, a first insulating layer and a second wiring layer, where the first wiring layer, the first insulating layer and the second wiring layer are sequentially disposed on the magnetic core from outside to inside; a first metal winding, formed in the first wiring layer, where at least part of the first metal winding is wound around the magnetic core in a foil structure; the first insulating layer, at least partially covered by the first metal winding; a second metal winding, formed in the second wiring layer and wound around the magnetic core, where the second metal winding is at least partially covered by the first insulating layer, and at least partially covered by the first metal winding.

Abstract: A structure includes a first periodic structure, a second periodic structure, and a third periodic structure disposed on a chip, and a first acoustic wave transmitter device, a first acoustic wave receiver device, a second acoustic wave transmitter device, and a second acoustic wave receiver device disposed on the chip. The first acoustic wave transmitter device is configured to transmit a first acoustic wave across both the first periodic structure and the second periodic structure, and the second acoustic wave transmitter device is configured to transmit a second acoustic wave across both the first periodic structure and the third periodic structure.