摘要:
The present invention provides a semi-transparent retroreflective material having a retroreflective side (16) and an opposite rear side (17), the retroreflective material having a regular or irregular two dimensional pattern of transparent and opaque areas, said retroreflective material comprising a layer of transparent microspheres (20) and a reflective layer located functionally behind said layer of transparent microspheres, said reflective layer comprising a regular or irregular two dimensional pattern of metal areas (11) of contiguous metal and open areas (12) having substantially no metal, wherein open areas (12) of said reflective layer correspond to transparent areas of said retroreflective material and metal areas (11) of said reflective layer correspond to opaque areas of said retroreflective material and wherein said transparent microspheres (20) are present in said transparent and opaque areas and wherein said transparent areas comprise at least 5% of the total surface of said retroreflective material on said retroreflective side (16).
摘要:
An aircraft pitot and static pressure sensing device and an aircraft having the sensing device, more particularly a fighter aircraft, include a plurality of pressure sensors disposed in a radome of the aircraft. In addition, a plurality of air intake ports is provided in the radome. The air intake ports are connected through connecting passages to the pressure sensors.
摘要:
A pre-bias optical proximity correction (OPC) method allows faster convergence during OPC iterations, providing an initial set of conditions to edge fragments of a layout based on density conditions near the edge fragments.
摘要:
A pre-bias optical proximity correction (OPC) method allows faster convergence during OPC iterations, providing an initial set of conditions to edge fragments of a layout based on density conditions near the edge fragments.
摘要:
An hydraulically-pivotable inlet ramp with box-like shaped cross-section for supplying air into engines of supersonic or hypersonic airplanes. The inlet ramp, comprised of a plurality of relatively movable elements, can be adjusted into a number of different positions to optimize air flow under various mach conditions, as well as control a boundary air layer inlet.
摘要:
An acceleration sensor for the automatic triggering of occupant protection systems in vehicles comprises a liquid which is moved in a housing as a function of the acceleration, with a detector which responds to a critical acceleration value. The housing is a level tube which is aligned relative to the acceleration to be determined and contains both the liquid and an indicating medium. The detector responds to the position of the indicating medium, as it moved in the liquid as a function of the acceleration.
摘要:
In a control device for a passenger safety apparatus, the safety apparatus is triggered by a sensor arrangement which responds to a longitudinal and/or transverse acceleration of the motor vehicle. It is also independently triggerable by an additional state-of-motion or moving-condition sensor which is configured to recognize a near weightless state of the vehicle. The safety apparatus is triggered even in an extremely critical state of motion in which the vehicle moves in a manner similar to free fall.
摘要:
An image-reproducing arrangement for motor vehicles, in which a real image is represented as virtual image in the field of vision of the vehicle user by means of a lens and the windshield following the lens in the path of the light rays; the real image and the lens are thereby arranged at the upper edge of the windshield. Only a mirror element is located between the lens and the windshield within the area of the surface of the instrument panel. This mirror element requires a relatively small amount of space and by reason of the relatively large distance from the lens element offers the possibility to match the virtual image falling into the eye of the vehicle user to the respective prevailing conditions.