Abstract:
A testing device for measuring the light characteristics of an electronic component includes an inlet at one end at which an electronic component can be presented for testing. A shutter is located at the inlet and is moveable between a first open position in which an electronic component can be received into the inlet, and a second closed position in which the shutter can overlay at least the majority of a nest on which said electronic component is supported, so that the shutter prevents light emitted by the electronic component from being diverted away from the testing device. The shutter includes at least one sliding door that can be slid to move the shutter into its first and second open positions. The at least one sliding door includes a cut out portion that defines said opening when the shutter is in its second closed position.
Abstract:
Disclosed is a photometric apparatus improved in measurement precision by improving the state of light incident to a sensor. The photometric apparatus 1 includes a photometric sensor 30 into which light which is an object to be measured is incident, a signal processing element for processing a sensor output by the photometric sensor, and optical systems 50, 100, 92, 93 and 150 which introduces external light into the photometric sensor, wherein a columnar fiber rod 100 in which a center axis is provided along a direction perpendicular to a light receiving surface of the photometric sensor is provided at a part of the optical system.
Abstract:
A sensor is provided for detecting light, including an imager which includes a first imaging element and a second imaging element situated adjacent to the first imaging element, and including an optical element which is designed for directing a first component of light incident in the direction of the first imaging element onto the second imaging element, and for allowing a second component of the light incident in the direction of the first imaging element to strike the first imaging element.
Abstract:
A method and a structure are provided to increase a receiving angle of an optical sensor. The structure includes touchscreen glass, an optical sensor, and a main board. An ambient light hole is provided on the touchscreen glass. The optical sensor is disposed between the touchscreen glass and the main board. A light uniformizing film is disposed between the touchscreen glass and the optical sensor, is in contact with the touchscreen glass, and completely covers the ambient light hole. A handheld terminal includes the foregoing structure.
Abstract:
A sensor housing and cosine diffuser are provided for the detection and measurement of ultraviolet (UV) irradiance. The cosine diffuser has a tiered structure to efficiently receive and transmit incident light that passes over and/or through the sensor housing structure. The sensor housing structure can be configured to have an irregular, serrated, castellated, and or repeating prong and/or tooth sequence to form a cutoff comb, through which incident light is attenuated. The attenuation of light in turn reduces measurement error caused when too much or too little incident light, relative to the actual intensity and irradiance of ambient incident light, reaches and transmits through a cosine diffuser due to the variation of the zenith angle of incident light over the course of a day.
Abstract:
Approaches enable a component such as a camera of a computing device to be collocated, or otherwise placed in proximity under the same cover sheet of material with an light source. A cover sheet can include a transmissive barrier positioned therein. The transmissive barrier can include at least one of a light scattering or light blocking feature. A light source and camera sensor can be positioned on a same side of the cover sheet and the transmissive barrier can be positioned between the light source and the camera such that light reflected from the light source by a portion of the cover sheet towards the camera is at least scattered, refracted, diffracted, blocked, or otherwise reduced using a determined pattern, layer, or other such feature in order to reduce an amount of light of the light source that is reflected from a surface or feature of the cover sheet and is detected by the camera.
Abstract:
A sheet-shaped optical article for receiving and emitting infrared rays includes a base and a mirror film formed on a surface of the base. A diffusion film is used as the base (diffusion base material) of the optical article. At least one of surfaces of the diffusion film is made to be a mat surface (diffusion layer), whereby the diffusion film scatters visible light. On at least any of the surfaces of the base, a mirror film (dielectric multilayer film) that transmits infrared rays and reflects visible light is formed.
Abstract:
An adjustable spectrum LED solar simulator method and system which provides power to LEDs, senses the LED output, compares the LED output to a predetermined norm, and adjusts the LED outputs accordingly. An adjustable spectrum LED solar simulator system includes a multiplicity of LEDs of a number of different color wavelength ranges, an LED driver system for providing power to the LEDs, a sensor system for sensing the output of the LEDs and a controller responsive to the sensor system for comparing the color spectrum of the output of the LEDs to a desired solar spectrum and enables the driver system to adjust the power to the LEDs to more closely match the desired solar spectrum. The solar simulator system may include a modulator structure of hierarchical assemblies. Solar simulator calibration is also disclosed.
Abstract:
The invention features devices and methods for collecting and measuring light from external light sources. In general, the devices of the invention feature a light diffusing element, e.g., as a component of a light collector, connected by a light conducting conduit, e.g., a fiber optic cable, to a light measuring device, e.g., a spectrometer. This light diffusing element allows, e.g., for substantially uniform light diffusion across its surface and thus accurate measurements, while permitting the total footprint of the device to remain relatively small and portable. This light diffusing element also allows flexibility in scaling of the device to permit use in a wide range of applications.
Abstract:
Light sensors (1) are used in lighting applications, especially in combination with LEDs, to control and/or adapt the color point of light sources. Costs and/or performance of the light sensor (1) are essential in order to guarantee cost-effective light sources with reproducible color points. This aim is achieved by a light sensor (1) comprising a light diffuser (10), an optical non-transparent housing (11) having at least one window (12), at least one interference filter (13) and at least two photo sensors (14). The light diffuser (10) is arranged in such a way that light from outside the optical non-transparent housing (11) has to pass the light diffuser (10) so as to enter the interior of the optical non-transparent housing (11) via the window (12). The interference filter (13) and the at least two photo sensors (14) are arranged in the interior of the optical non-transparent housing (11), which interference filter (13) is arranged between the window (12) and the at least two photo sensors (14).