Abstract: An optoelectronic laser distance-measuring instrument (1) with preselectable or sensitive reference points (3a, 3b, 3c) arranged on the outer edge of a portable housing (2) and having a radiation source (4), an associated radiation receiver (5) for a laser beam (6), a microcontroller (9), keypad (10), a display (11), which can be read off from the handling distance, for the depiction of a measured result (14), a camera lens (7) that is aimed in the direction of the laser beam (6) and has a image sensor (8), whose detected target area (12) can be graphically depicted on the display (11) at least partially together with a virtual measuring spot (13) calculated by the microcontroller (9) as well as with the measured result (14).

Abstract: The purpose is to provide an illumination device for constructing a compact, light weight and inexpensive display device. The illumination device is provided with a light source for emitting light, and a holographic optical element for deflecting entering light to form light to illuminate a rectangular region, wherein the holographic optical element is arranged in contact with either the top or the bottom surface of a glass plate, and light emitted from the light source enters the glass plate through a side surface of the glass plate and is directed to the holographic optical element, such that the principal rays of the light enter the holographic optical element approximately perpendicular relative to one diagonal of the rectangular region.