38 results about "Angular response" patented technology

A photosensor with customizable angular-response characteristics is presented. This photosensor includes a light-modifier located between the photosensor and a target area to be monitored by the photosensor, wherein the light-modifier provides a customizable angular response for light received at the photosensor from the target area.

A portable survey instrument and methodology yield intensity of neutron radiation, intensity of gamma radiation, and a direction of impinging gamma radiation. The instrument uses a neutron detector surrounded by an essentially rectangular moderator with preferably four gamma ray detectors disposed symmetrically about the neutron detector and within the moderator. Material and dimensions of the moderator are selected so that the neutron measurement is equally sensitive to fast and thermal neutrons. The moderator also induces angular responses to the gamma ray detectors. Responses of the gamma ray detectors are combined to yield a parameter indicative of the angular position of a source. The survey instrument is portable and suited for hand held use.

Depth sensing imaging pixels include pairs of left and right pixels forming an asymmetrical angular response to incident light. A single microlens is positioned above each pair of left and right pixels. Each microlens spans across each of the pairs of pixels in a horizontal direction. Each microlens has a length that is substantially twice the length of either the left or right pixel in the horizontal direction; and each microlens has a width that is substantially the same as a width of either the left or right pixel in a vertical direction. The horizontal and vertical directions are horizontal and vertical directions of a planar image array. A light pipe in each pixel is used to improve light concentration and reduce cross talk.

A solar sensor that utilizes a blocking element and curved reflective element between the sun and a photo-sensitive electronic device to provide high signal levels and the ability to shape the angular response of the overall sensor. A particular angular response can be achieved by combining the attenuating affects of the blocking element with the increased response affects of the curved reflector. These two elements may be combined into one physical structure, or may be separate. Further, the present invention contemplates the use of multiple blocking elements and multiple reflectors.

A probe style radiometer includes a generally rectangular cross-sectional body and a probe having a square cross-section. The probe is preferably a hollow rod having a tip equipped with a UV-collecting aperture and a mirror. The mirror reflects UV light entering the aperture down the length of the rod to a detector in the body. A processor in the body then computes the amount of UV radiation based on signals from the detector. The amount may then be provided on a display integrated into the body. A ground quartz or glass window may be provided at the tip to seal the rod from exterior contamination and to diffuse the incoming UV radiation in a manner that will give the probe a near-cosine angular response. Filters within the radiometer body then filter this diffused radiation to the spectral region of interest. Preferably, the radiometer is battery powered and includes switches on the body to allow a user to control the mode of operation. To prevent electrical shock, the metal rod of the probe may contain an electrically non-conductive outer coating.

A backside illuminated imaging pixel with improved angular response includes a semiconductor layer having a front and a back surface. The imaging pixel also includes a photodiode region formed in the semiconductor layer. The photodiode region includes a first and a second n-region. The first n-region has a centerline projecting between the front and back surfaces of the semiconductor layer. The second n-region is disposed between the first n-region and the back surface of the semiconductor layer such that the second n-region is offset from the centerline of the first n-region.

A patch antenna having a plurality of structures, referred to herein as comb structures, is disclosed that results in an antenna having a reduced overall patch size and weight as well as a broader the angular response pattern of the antenna. In a first embodiment, comb structures are attached to one of the surface of the patch or the surface of the ground plane. In a second embodiment, the comb structures are attached to both the patch and the ground plane in a manner such that the structures interleave with each other. The structures may be pins or ribs that are electrically connected to the ground plane and / or the patch, or may be any other suitable configuration depending upon the polarization of the signal to be transmitted or received.

Probing incident radar fields in a target test zone of a RCS test facility by exploiting angular radar response of a long and uniform rigid body supported horizontally across or vertically through the test zone. The rigid body is free to rotate about the broadside condition. Thus, the angle of the rigid body is gradually changed with respect to the direction of arrival of the incident wave. Radar echo from the rigid body is measured as a function of the rigid body angle. The data is then processed to yield a profile of the incident wave intensity along the rigid body. By varying the azimuth angle continuously while recording radar data, the data may be processed by the fast Fourier transform (FFT) algorithm to yield a profile of the incident wave intensity along the rigid body.

A probe style radiometer includes a generally rectangular cross-sectional body and a probe having a square cross-section. The probe is preferably a hollow rod having a tip equipped with a UV-collecting aperture and a mirror. The mirror reflects UV light entering the aperture down the length of the rod to a detector in the body. A processor in the body then computes the amount of UV radiation based on signals from the detector. The amount may then be provided on a display integrated into the body. A ground quartz or glass window may be provided at the tip to seal the rod from exterior contamination and to diffuse the incoming UV radiation in a manner that will give the probe a near-cosine angular response. Filters within the radiometer body then filter this diffused radiation to the spectral region of interest. Preferably, the radiometer is battery powered and includes switches on the body to allow a user to control the mode of operation. To prevent electrical shock, the metal rod of the probe may contain an electrically non-conductive outer coating.

Depth sensing imaging pixels include pairs of left and right pixels forming an asymmetrical angular response to incident light. A single microlens is positioned above each pair of left and right pixels. Each microlens spans across each of the pairs of pixels in a horizontal direction. Each microlens has a length that is substantially twice the length of either the left or right pixel in the horizontal direction; and each microlens has a width that is substantially the same as a width of either the left or right pixel in a vertical direction. The horizontal and vertical directions are horizontal and vertical directions of a planar image array. A light pipe in each pixel is used to improve light concentration and reduce cross talk.

The invention discloses a high-sensitivity wide-range X-gamma ambient dose equivalent rate monitor probe, which consists of a front cover of the probe, a shielding shell, thallium-doped sodium iodide scintillator, a first optical conductor, a plastic scintillator, a silver-doped zinc sulfide scintillator, a second optical conductor, a photomultiplier and a preamplifier circuit which are connectedin turn. By the high sensitivity of the plastic scintillator and the energy compensation of the thallium-doped sodium iodide scintillator and the silver-doped zinc sulfide scintillator, the high-sensitivity wide-range X-gamma ambient dose equivalent rate monitor probe has the advantages of capacity of detecting the ambient dose equivalent rate of X-gamma rays under a wide-range high-dose mixed gamma radiation field, good energy response, high sensitivity and good angular response.

An image sensor device formed in an integrated circuit (IC) with one or more shading structures configured to provide a predetermined shading pattern to control the locations at which light impinges on the photodiode areas of the pixels. The predetermined shading patterns preventing color cross-talk and providing the pixels with substantially symmetric angular responses to light to thereby eliminate or reduce the occurrence of artifacts in the output image produced by the image sensor device.

The present invention relates to an optical sensor that is formed in an integrated circuit based on CMOS technology and that comprises: one or more photocells including one or more photodetector active areas and an optical stack formed on the photodetector active area(s); and light shielding means, that are formed in or on the optical stack, and are configured, for each photocell, to define an angular range around a given incident direction with respect to said photocell, block incident light with incidence angle outside the defined angular range, and allow incident light with incidence angle within the defined angular range to propagate through the optical stack down to a respective photodetector active area; whereby the light shielding means limit angular response of the optical sensor.

The invention provides an angle response controller for a radiation measuring instrument, and is used for angle response characteristic study and calibration / verification of detector positioning and angle adjustment of the radiation measuring instrument. A box body is fixedly connected with a base; a hand wheel is fixedly connected with a driving motor; the driving motor is fixedly connected with a worm active rotating shaft; an active worm gear is fixedly arranged in the center place of the worm active rotating shaft; a working table is arranged on the box body; a box cover disc is arranged between the box body and the working table; and a data transmission plug-in is externally connected with a 7SC 401 monaxial movement controller. The angle response controller can accurately position a radiation detector reference point to a radiation field checking point, and carries out angle adjustment, thereby reducing distance error and reading error, improving work efficiency, and reducing residence time of work personnel in a radiation field and occupation radiation dose.

The invention discloses a test device for the angular response characteristic of an optical radiation sensor, comprising: a monochromatic beam output system, an optical radiation sensor, a position detector, an acquisition controller, a drive module, and a power supply. The monochromatic beam output system is used to output uniform Collimated monochromatic beam; the optical radiation sensor receives the monochromatic beam and generates an optical response signal; the position detector detects the position of the optical radiation sensor and generates a position signal; the drive module drives the optical radiation sensor and the position detector to rotate at multiple angles; The controller collects the optical response signal and the position signal, and generates the test result of the angular response characteristic of the optical radiation sensor according to the optical response signal and the position signal; the power supply is used to provide the optical radiation sensor, the position detector, the acquisition controller and the drive module power supply. The invention adopts a laser light source to replace the traditional broadband light source, has smaller volume, lower power consumption, short warm-up time and low cost.

The invention discloses a transformer partial discharge detection system of an optical fiber external cavity FAP sensor array, which belongs to the technical field of on-line partial discharge monitoring of power transformer equipment. The partial discharge detection system consists of narrow-band light sources, optical filters, optical splitters, 4 optical circulators, 4 single-mode optical fibers, 4 optical fiber external cavity FAP sensors, and 4 photodetectors, 4 amplifiers and The oscilloscope is composed of two optical fiber external cavity FAP sensors placed in the temperature measuring tank oil on the top of the transformer, and the other two placed in the flange grooves on both sides of the transformer top. The groove structure is equivalent to the ultrasonic signal collector. It is used to remove the angle response, enhance the signal and avoid the influence of the oil pressure inside the transformer. The invention has high sensitivity, strong signal collection ability, convenient operation and strong anti-interference ability; it can also well detect the partial discharge of the transformer without additional auxiliary structures. The optical fiber external cavity FAP sensor has high sensitivity and can detect weak partial discharge signals.

The present invention provides a method for driving a speed vector indicator for a human-in-the-loop HUD display of an unmanned aerial vehicle. The ground control platform uses the effective normal overload information downloaded by the UAV to construct a pseudo angle of attack, which is used to simulate the real angle of attack, so that the false angle of attack can be used to drive the head-up display speed of the integrated flight control screen display area of ​​the ground control platform Vector symbols are displayed. In the above method, the polarity of the false angle of attack response is correct during the maneuvering process of the UAV, and there is basically no delay. In the manipulation of small and medium sticks, the response amplitude basically coincides with the normal angle of attack. When the large stick is manipulated, the response amplitude is slightly smaller than normal. The angle of attack meets the requirements of use.

An imaging system is disclosed that may include an image sensor with a phase detection pixel set for depth sensing or autofocus operations. Each phase detection pixel group may have two or more photosensitive regions covered by a single microlens such that each photosensitive region has an asymmetric angular response. The imaging system may use image data from the set of phase detection pixels to determine the phase difference. Alternatively, in order to improve the accuracy, the imaging system can use two different aperture sizes to obtain two sets of image data. The phase difference associated with each aperture size can be determined. The difference between the two phase differences can be determined and used as a more accurate measure for depth sensing or autofocus operation.