Abstract:
A sunlight focusing analysis device relating to an analysis and verification device for a potential failure mode of a vehicle lamp projection unit, and a method for using same, and in particular to the analysis and verification of ablation of peripheral parts of a lens caused by focal spots formed by sunlight focused via a vehicle lamp lens. The device comprises a base, a lens holder, and a test piece holder. A horizontal rotary table and an inclination angle adjustment mechanism are provided on the base; the inclination angle adjustment mechanism is formed by a fixed support arm and a vertical swing arm connected to each other; the lens holder is fixed on the vertical swing arm; the test piece holder is mounted on a test piece lifting platform below the lens holder.
Abstract:
System for calculating the exposure to sun radiation received on the different parts of the body by a person, comprising a wearable device (1) that communicates with a telecommunication mobile device (2) and a remote computing unit (3) operatively connected to satellites (4) to receive georeferenced data related to solar irradiation over time and set to associate the solar irradiance data to the geographical position, the posture and the orientation of the person (P) or of parts of the person's body.
Abstract:
A signal barrier for a sensor device can include at least one wall that forms an inner space, wherein the at least one wall comprises a material for reducing an amount of a signal from entering the inner space, wherein the at least one wall is configured to be disposed adjacent to a transceiver element of the sensor device, wherein the transceiver element is directed to the inner space.
Abstract:
Focusing modules and methods are provided, which use a spatial light modulator (SLM) configured to yield a circumferentially sinusoidal pattern to derive focusing signals. For example, the SLM may comprise an optical chopper wheel made of a glass disc with a circumferentially sinusoidal pattern. The circumferentially sinusoidal pattern simplifies phase derivation from the focusing signal, providing a faster and more accurate estimation of defocusing. Signal detection may be carried out by a diode array that provides a more accurate signal faster, as well as a more differentiated analysis of the focusing signal than the one available by current technology.
Abstract:
An apparatus and method are provided for performing Quality Assurance of complex beams of penetrating radiation inside a patient. A detector with a transverse scintillating screen images the radiation inside a tissue phantom with high spatial resolution. The scintillator is comprised of a mixture of two or more scintillators emitting different spectra of light and having different characteristic responses as a function of the beam LET value. The optics relaying the scintillation output have variable transmission with wavelength, further shaping the spectrum of light transmitted to the imaging sensor which also has spectrally varying sensitivity. Parameters of the scintillator construction, the optics, and the imaging sensor are chosen so the output of the composite detector is proportional to a characteristic of the input beam, for example the dose deposited as a function of depth inside the tissue phantom.
Abstract:
A self-contained monitor array for measuring at least one type of electromagnetic emission and at least one type of mechanical wave emission from a marine-based and/or terrestrial human activity or installation such as alternate energy sources. A multi-modal monitor system includes at least two such arrays, at least one clock, and at least one data storage unit. The monitor system is employed at the site of a turbine installation to measure at least one type of emission generated by the turbine and may comprise a controller to compare the emission signals with pre-determined acceptable value ranges and adjust the performance of the turbine accordingly.
Abstract:
A method of estimating an in-focus level of a target in an image scanning apparatus is provided, wherein the image scanning apparatus comprises a first line scan detector configured to obtain one or more image scan lines of the target and a second line scan detector configured to obtain one or more focus scan lines of the target. The method comprises obtaining at least one image scan line of the target using the first line scan detector, each at least one image scan line being obtained at a respective focus level; obtaining at least one focus scan line of the target using the second line scan detector, each at least one focus scan line being obtained at a respective focus level; calculating at least one focus parameter using at least one focus scan line; and estimating a nominal in-focus level of the target using the calculated focus parameter(s).
Abstract:
Embodiments generally describe systems, devices, and methods for focusing and calibrating beam profilers. A test object is provided that may include an internal housing rotatable within an external housing. The internal housing may house a light source, a collimator, a filter, and/or a diffuser. A plate may be mounted to the internal housing and may include a plurality of markings. In some embodiments, to focus a beam profiler, the test object may be positioned adjacent the converter plate of a beam profiler. Marker images may be captured and a focus quality may be assessed therefrom. A position of the converter, objective, and/or camera of the beam profiler may be adjusted based on the focus quality. To calibrate, images of the markings in several rotational positions may be captured and used for calibration. The markings may be rotated to several positions by rotating the internal housing relative to the external housing.
Abstract:
A direction sensor (200) includes sensor cells (215) that respectively correspond to different directions. Each of the sensor cells (215) includes a light sensor (130, 140) and a grating (120) that couples incident light into the light sensor (130, 140) when the incident light has a specific wavelength and is incident on the grating (120) along the direction corresponding to the sensor cell (215).
Abstract:
A radiation detector head assembly is provided that includes a detector housing and a detector unit. The detector housing defines a cavity therein. The detector housing includes a shell and a shielding body. The shell defines at least a portion of a perimeter surrounding the shielding body, and includes an extrusion defining the at least a portion of a perimeter. The extrusion is formed from a first material that is configured for rigidity. The shielding body includes a second material configured to shield radiation. The detector unit is disposed within the cavity, and includes an absorption member and associated processing circuitry.