摘要:
A nanostructured hybrid particle, a manufacturing method thereof, and a device including the nanostructured hybrid particle are disclosed. The nanostructured hybrid particle includes a hydrophobic base particle having a convex-concave nanopattern on a surface thereof; a hydrophobic light-emitting nanoparticle disposed in a concave portion of the convex-concave nanopattern on the surface of hydrophobic base particle; and a coating layer covering the hydrophobic base particle and the hydrophobic light-emitting nanoparticle. In the nanostructured hybrid particle, light extraction may occur in all 3-dimensional directions, and thus, the nanostructured hybrid particle can exhibit high light extraction efficiency compared to light extraction occurring on a two-dimensional plane.
摘要:
A non-destructive method for chemical imaging with ˜1 nm to 10 μm spatial resolution (depending on the type of heat source) without sample preparation and in a non-contact manner. In one embodiment, a sample undergoes photo-thermal heating using an IR laser and the resulting increase in thermal emissions is measured with either an IR detector or a laser probe having a visible laser reflected from the sample. In another embodiment, the infrared laser is replaced with a focused electron or ion source while the thermal emission is collected in the same manner as with the infrared heating. The achievable spatial resolution of this embodiment is in the 1-50 nm range.
摘要:
A method for calibrating a test light to simulate a fire includes measuring a baseline resistance induced in a sensor cell of a two-color detector in response to a controlled fire. The method includes monitoring a test resistance induced in the sensor cell in response to exposure to emissions from a test light and adjusting the emissions of the test light until the test resistance of the sensor cell equals the baseline resistance of the sensor cell to achieve a calibration setting for the test light. A test light for a detector includes a housing and a first LED within the housing having a first emission wavelength. A second LED is within the housing. The second LED has a second emission wavelength. The second emission wavelength is different than the first emission wavelength.
摘要:
A method for determining the temperature of an infrared-active gas by means of infrared spectroscopy is provided. The method comprising: radiating infrared light in a spectral range of 700 cm−1 to 5000 cm−1 originating from an infrared light source onto the gas; obtaining a first absorption-related parameter originating from measuring a first infrared absorption band of the gas, wherein the first infrared absorption band is a hot band being caused by thermal population of at least one vibrational mode of the gas; obtaining a second absorption-related parameter originating from measuring a second infrared absorption band of the gas, and calculating a ratio between the first absorption-related parameter and the second absorption-related parameter. The method is characterized in that the ratio is used to determine the temperature of the gas, wherein the ratio has a relative change of at least 0.5% per Kelvin temperature difference of the gas.
摘要:
A luminaire comprises at least one light emitting diode (LED) as a light source. Such LED comprises a limited light emitting angle for the emitted light radiation. Outside of the light emitting angle, an infrared sensor is assigned to the light source for detecting its temperature.
摘要:
Disclosed is a portable device for measuring temperature with infrared array sensor. This portable device includes: an infrared array sensor module for taking temperature values in a unit of pixel and including a plurality of infrared sensors arranged in an array of pixels; a controller for calculating a resultant temperature value of a subject with reference to the temperature values taken each by the sensors; a display for expressing the resultant temperature value calculated by the controller; and a view finder with an indicator defining a target point to be measured for temperature and having a profile corresponding to the whole or a local shape of the subject. The view finder is formed of a transparent plate on which the subject's shape is reflected. The transparent plate is formed of: a notch representing the indicator; and a lens at least provided in the indicator.
摘要:
A detection system includes a polarization analyzer that generates one or more null detection values if an object is sensed in a received millimeter wave (MMW) brightness temperature data set. The polarization analyzer analyzes a polarization parameter in the received MMW brightness temperature data set to generate the one or more null detection values. An object detector detects if the object is present based on a comparison of the one or more null detection values to a predetermined threshold. A singular value decomposition (SVD) unit is enabled by the object detector to decompose the MMW brightness temperature data set into a plurality of image layers. Each image layer includes at least one feature of a scene. An identification unit analyzes the plurality of image layers from the SVD unit to determine a shape or a location of the object from the scene.
摘要:
The invention is an optical method and apparatus for measuring the temperature of semiconductor substrates in real-time, during thin film growth and wafer processing. Utilizing the nearly linear dependence of the interband optical absorption edge on temperature, the present method and apparatus result in highly accurate measurement of the absorption edge in diffuse reflectance and transmission geometry, in real time, with sufficient accuracy and sensitivity to enable closed loop temperature control of wafers during film growth and processing. The apparatus operates across a wide range of temperatures covering all of the required range for common semiconductor substrates.
摘要:
Color light sensors are used to sense colored light and a full spectrum light in order to generate at least three color channel signals and a clear channel signal. An infrared component IR is calculated by summing up the color channel signals with individual weighting factors and subtracting a weighted clear channel signal.
摘要:
Ambient light is sensed for use in determining luminous flux. According to an example embodiment, ambient light is sensed using two light sensor arrangements that respectively respond differently to light of different relative wavelengths. The output of the sensors is nonlinearly combined to generate data indicative of the luminous flux. This luminous flux data is used to generate a control output for controlling an electronic display.