Abstract: There is disclosed a display system to be attached to a head of the user or to a helmet to be positioned on the head of the user. The display system comprises an image intensifier unit having an input for receiving an image and an output for retransmitting the image with enhanced intensity and within a predetermined first frequency band. The display system further comprises an eye piece composed of a first and second transparent reflecting element having angle- and frequency-dependent reflectants and transmittance properties wherein such properties in combination with the first frequency band result in an intensified image emerging via the eye piece. The display system further is provided with an image display device for transmitting a visible video image in the direction of the eye piece.

Abstract: A device for mounting leadless chip-type electronic components on a substrate. A mounting head includes a slide which is displaceable in a guide in a single direction between a loading position and an unloading position, and a suction device which is displaceable in a vertical direction only at the area of the unloading position. A component to be mounted, dispensed from a magazine or from a carrier strip, is transported by the slide from the loading position to the unloading position where the component is picked up and then moved down onto the substrate by the suction device. As a result of the controlled displacement of the components in only two directions, accurate and reproduceable positioning of the component is achieved.