Optical system for distance and angle measurement

Optical system, with a measuring unit (3) which emits an optical signal as transmitted signal (13) and detects the optical signal as reflected signal (14), and with a control unit (7) which, on the basis of a transit time measurement of the optical signal (13, 14), determines the distance (dz) between a reference object (1) and target objects (2) located in the surveillance area and/or the speed of the target objects (2) located in the surveillance area, characterized

• in that the surveillance area is divided into several target sectors (21) that respectively encompass a certain angular range in horizontal direction (α) and vertical direction (β),
• in that the measuring unit (3) comprises a receiver unit (4) with a number of parallel connected receiver elements (8) corresponding to the number of the target sectors, whereby each receiver element (8) detects the reflected signal (14) as received signal from one of the target sectors (21), and
• in that the control unit (7) comprises a number of evaluating stages (15) corresponding to the number of the receiver elements (8), whereby each evaluating stage (15) evaluates the received signal of a receiver element (8) stemming from one target sector (21).