361results about How to "Avoid shadows" patented technology

The invention relates to a photovoltaic power station automatic inspection system based on an unmanned aerial vehicle. The system is used for monitoring real-time operation condition of a photovoltaicpower station and detecting whether problems such as contamination and hot spots exist in a photovoltaic cell panel or not. The system comprises the unmanned aerial vehicle, a route design module, anonboard module, an image processing module, a communication module, a fault reconfirmation module and a ground workstation. The route design module is used for planning an inspection route of the unmanned aerial vehicle. The onboard module is composed of a camera and an infrared thermal imager and is used for collecting real-time images, pictures and thermal images of a photovoltaic module. The communication module is used for transmitting real-time data back to the ground workstation and receiving control instructions. The image processing module is used for processing image data and judgeswhether a fault exists in the photovoltaic cell panel or not. The fault reconfirmation module is used for carrying out fault reconfirmation on a suspected fault module, thereby preventing misjudgment.According to the system, the photovoltaic power station is automatically inspected, inspection efficiency is effectively improved, cost investment is reduced, and a fault point is discovered rapidly.

A synchronized optical clocking signal is provided to a plurality of optical receivers by providing a layer of a high absorption coefficient material, such as SiGe or Ge, on a front surface of a low absorption coefficient substrate, such as silicon. Diodes are formed in the germanium containing layer for receiving an optical signal and converting the optical signal into an electrical signal. An optical clocking signal is shined on the back surface of the silicon substrate. The light has a wavelength long enough so that it penetrates through the silicon substrate to the germanium containing layer. The wavelength is short enough so that the light is absorbed in the germanium containing layer and converted to the electrical clocking signal used for neighboring devices and circuits. The germanium concentration is graded so that minority carriers are quickly swept across junctions of the diodes and collected.

A 360 degree camera imaging system comprising a first horizontal boom having a first end, a second end, and a middle section; a second horizontal boom having a first end and a second end; a first vertical arm having a first end and a second end; a second vertical arm having a first end and a second end; and a mounting bracket. The first horizontal boom is connected to the first end of the second horizontal boom by a first rotatable pivot proximate the middle section of the first horizontal boom, and the second end of the second horizontal boom is connected to the mounting bracket. The first end of the first vertical arm is affixed to the first end of the first horizontal boom, and the first end of the second vertical arm is affixed to the second end of the first horizontal boom. A camera is mounted to the first vertical arm, and a backdrop is mounted to the second vertical arm.

An electrical power tool includes a housing, an electrical motor, an end-bit holding section, a transmitting mechanism, a cap, and a lighting section. The housing has one end. The electrical motor is accommodated in the housing and is configured to generate a rotational driving force. The end-bit holding section is provided at the one end and is rotatable about a rotational axis. The transmitting mechanism transmits the rotational driving force to the end-bit holding section. The cap is attached to the one end. The lighting section allows an entirety of the cap to be luminous.

The present invention provides a semiconductor device that includes at least one semiconductor Fin structure atop the surface of a substrate; the semiconducting fin structure including a channel of a first conductivity type and source/drain regions of a second conductivity type, the source/drain regions present at each end of the semiconductor fin structure; a gate structure immediately adjacent to the semiconductor fin structure, a dielectric spacer abutting each sidewall of the gate structure wherein the each end of the fin structure extends a dimension that is less than about ¼ a length of the Si-containing fin structure from a sidewall of the dielectric spacer; and a semiconductor region to the each end of the semiconductor fin structure, wherein the semiconductor region to the each end of the semiconductor fin structure is separated from the gate structure by the dielectric spacer.

Disclosed herein are embodiments of an improved method of forming p-type and n-type MUGFETs with high mobility crystalline planes in high-density, chevron-patterned, CMOS devices. Specifically, semiconductor fins are formed in a chevron layout oriented along the centerline of a wafer. Gates are formed adjacent to the semiconductor fins such that they are approximately perpendicular to the centerline. Then, masked implant sequences are performed, during which halo and/or source/drain dopants are implanted into the sidewalls of the semiconductor fins on one side of the chevron layout and then into the sidewalls of the semiconductor fins on the opposite side of the chevron layout. The implant direction used during these implant sequences is substantially orthogonal to the gates in order to avoid mask shadowing, which can obstruct dopant implantation when separation between the semiconductor fins in the chevron layout is scaled (i.e., when device density is increased).

The invention provides a black fluorescent ink which mainly comprises 5-50% of fluorescent material, 5-40% of black pigment, 1-40% of blue pigment, 10-60% of linking material, 0.1-40% of filler, 2-60% of adjuvant. The linking material is one or more of phenolic resin, alkyd resin, rosin ester, polyamide resin, acrylic resin and acrylic acid derivative.

An imaging lens (100) comprising, arranged sequentially from the object side, a positive-meniscus first lens (1) with its convex plane facing the object side, a negative-power-meniscus second lens (2), and a positive-power third lens (3), the second and third lenses (2, 3) functioning as correction lenses. The first lens (1) has a strong power, and both the second and third lenses (2, 3) are aspherical on opposite planes. When the synthetic focal distance of the imaging lens is f, the focal distance of the first lens f1, the distance from the incident surface on the object side to the imaging surface of the first lens (1) Σd, and the Abbe number of the second lens {square root}d2, the following conditional expressions are satisfied. 0.50<f1/f<1.5 (1) 0.50<Σd/f<1.5 (2) 50>{square root}d2 (3). Accordingly, a small, low-cost imaging lens capable of high-quality imaging can be realized.

The invention relates to an optical lens utilized for disposing above a light source. The optical lens has rotational symmetry relative to the central axis thereof. The central axis of the optical lens aligns with the center of the light source. The optical lens includes a bottom surface, an emergence surface with arc shape, an incidence surface with arc and concave shape, a curved surface with annular and concave shape and a light diffusing structure. The emergence surface connects a side of the bottom surface. The incidence surface connects another side of the bottom surface and lies in the middle of the bottom surface. The curved surface lies on the bottom surface and connects the incidence surface. The light diffusing structure is disposed on the curved surface. The invention improves the distribution of light projected on a light receiving surface and prevents a bright circle formed on the light receiving surface as a result of a gap that is formed by assembly tolerance of the optical lens and the light source.

A light-emitting device is provided, having an enlarged area of active luminescence region to enhance the brightness, mainly comprising a second epitaxy layer and at least one first epitaxy layer provided on a die substrate in turn. On the top surface of the first epitaxy layer, there are provided with at least one first electrode, and a plurality of second electrodes passing through the first epitaxy layer, insulated with the first epitaxy layer by means of an electrode insulation layer, and electrically connected to the second epitaxy layer, in which the first electrode and the second electrodes are alternately arranged. Moreover, first power supply circuits and second power supply circuits are provided on a power supply substrate at positions based on the locations of the first electrode and second electrodes so as to be adhesively electrically connected to the first electrode and the second electrodes, correspondingly. The plurality of first power supply circuits is connectedly provided with a first connective circuit, and the second power supply circuits are connectedly provided with a second connective circuit. The first connective circuit and second connective circuit are provided on the power supply substrate, instead of provided on the light-emitting device directly. Thus, the area of active luminescence region is relatively enlarged, whereby the luminous yield is enhanced accordingly.

An Extra Electric Energy System that supplies electrical power to an aircraft of the continuous flight duration day/night cycle solar powered type is described where the extra electric energy is generated as static charge by collisions of the aircraft with particles existing in the earth's atmosphere. The manner in which the static charge is collected, stored and used immediately to meet present or future aircraft power needs is considered. An example of the application of the system to a high altitude solar powered Helios type aircraft is offered along with a discussion of how its structure is modified to store static charge.

The invention provides an adaptive hierarchical structure light-based touch detection system and method. The system comprises a touch detection unit, a projection unit, an image sensing unit and a control unit, wherein the touch detection unit is used for receiving original interface image data from the exterior of the system, receiving a projection region image data photographed by the image sensing unit and processing the image data, and acquiring and outputting touch information of a touched object; the projection unit is used for projecting an original interface image to a projection plane to image; the image sensing unit is used for acquiring and outputting the projection region image data; and the control unit is used for controlling ordered cooperative work between every two units and controlling the synchronization between the projection unit and the image sensing unit. By using a structure light three-dimensional measurement principle, the distance between the touched object and the projection plane can be accurately measured, and the measurement precision and the touch detection accuracy are guaranteed; the amount of calculation of structure light generation and extraction is reduced; and the problem of flickering of hidden embedded structure light or image quality reduction is effectively solved.