Abstract:
An infrared sensor IC and an infrared sensor, which are extremely small and are not easily affected by electromagnetic noise and thermal fluctuation, and a manufacturing method thereof are provided. A compound semiconductor that has a small device resistance and a large electron mobility is used for a sensor (2), and then, the compound semiconductor sensor (2) and an integrated circuit (3), which processes an electrical signal output by the compound semiconductor sensor (2) and performs an operation, are arranged in a single package using hybrid formation. In this manner, an infrared sensor IC that can be operated at room temperature can be provided by a microminiature and simple package that is not conventionally produced.
Abstract:
밝은 상태에서는 액정셔터(10)를 구동 또는 동력을 공급하기 위한 비교적 낮은 교류전압신호를 나타내며, 어두운 상태에서는 셔터(10)를 초기에 구동하기 위하여 그리고 그후 어두운 상태에서 셔터(10)를 유지하기 위하여 두 개의 비교적 높거나 큰 교류 전기신호를 나타내는 액정용접렌즈(10) 또는 셔터용 파워 서플라이회로(14); 어두운 상태에서 전력사용을 최소화하며 밝은 상태에서 명멸을 방지하기 위하여 셔터(10)에 대한 구동회로의 주파수를 변환하기 위한 가변주파수 회로(61); 전력절약 및 배터리 레벨지시 특성을 포함한다.
Abstract:
A warm shield as part of a thermal imaging system comprising a reflecting surface having a convex curvature that when positioned relative to an opening of a thermal imaging system, thermal energy originating from the opening of the thermal imaging system incident on the convex curvature is reflected in a direction away from the opening of the thermal imaging system. An aperture can be formed in the reflecting surface and positioned to facilitate passage therethrough of external thermal energy in a direction towards a detector of the thermal imaging system, and passage of at least some of the thermal energy originating from within the thermal imaging system in a direction away from the thermal imaging system.
Abstract:
Techniques for shielding an optical sensor are described. An example of an electronic device includes an optical sensor and a combined light-focusing and electrical-shielding unit disposed over the optical sensor. The light-focusing and electrical-shielding unit has two portions. The first portion gathers light and focuses the light on the electrical sensor. The second portion encloses sides of the first portion and is coated with an electrically conductive material to shield the optical sensor from electromagnetic interference.
Abstract:
Die Erfindung betrifft eine Funktionseinheit, umfassend ein oder mehrere Funktionselemente sowie ein Leiterplattensubstrat mit einer Oberfläche. Die Aufgabe, für eine Funktionseinheit Maßnahmen bereitzustellen, so dass jegliche Störstrahlung außerhalb eines interessierenden Wellenlängenbereiches derart unterdrückt wird, dass die Funktionseinheit keine Sensitivität in anderen Wellenlängenbereichen aufweist, dass das Messergebnis nicht durch Störstrahlung verfälscht wird, wird dadurch gelöst, dass die Funktionseinheit in das Leiterplattensubstrat eingebettet oder auf dem Leiterplattensubstrat angeordnet ist und strahlungsundurchlässige Mittel um die Funktionseinheit und/oder um das mindestens eine Funktionselement ausgebildet sind.
Abstract:
An apparatus for annunciating low-voltage in a battery supplying electricity to an auto- darkening optical filter system (10) for a welding helmet (not shown). Low voltage is annunciated by changing, for example strobing, the opacity of the optical filter system (10).
Abstract:
The present invention relates to a method and system of array imaging that extends or maximizes the longevity of the sensor array by minimizing the effects of photobleaching. The imaging system has a light source, a variable exposure aperture, and a variable filter system. The system extends the longevity of sensors by (1) using the variable exposure aperture to selectively expose sections of the sensor array containing representative numbers of each type of sensor, and/or (2) using the variable filter system to control the intensity of the excitation light, providing only the intensity required to induce the appropriate excitation and increasing that intensity over time as necessary to counteract the effects of photobleaching.
Abstract:
In order to reduce the exposure of a detector surface 180 of a photo-multiplier 160 to stray charged particles, an off-axis structure is interposed between the resonant structure and the detector surface of the photo-multiplier. By providing the off-axis structure with at least one reflective surface, photons are reflected toward the detector surface of the photo-multiplier while at the same time absorbing stray charged particles. Stray particles may be absorbed by the reflective surface or by any other part of the off- axis structure. The off-axis structure may additionally be provided with an electrical bias and/or an absorbing coating for absorbing stray charged particles.