Patent ID: 7428041
Filing Date: 2008-09-23
Classification: G01S,Y02A

Abstract:
1. A lidar, which includes a transmitter ( 1 ) and a receiver ( 2 ), as well as an optical system, which is arranged to direct at least part of light emitted by the transmitter ( 1 ) to form a transmitter beam ( 3 ) proceeding towards an object and to define the receiver beam ( 4 ) to the receiver ( 2 ), at least part of the light arriving from the area of which is focussed on the receiver ( 2 ), which optical system is implemented so that the beams ( 3 , 4 ) immediately in front of the lidar are located substantially outside of each other and one of the beams ( 3 , 4 ) at least partially surrounds the other beam ( 4 , 3 ), and wherein the optical system includes an integrated optical component ( 6 ), the integrated optical component ( 6 ) consisting of one lens ( 33 , 43 ) and having a first area for the transmitter beam ( 3 ) and a second area for forming the receiver beam ( 4 ), and wherein said first area of the integrated optical component ( 6 ) is adapted to form the transmitter beam ( 3 ) such that refraction of the transmitter beam ( 3 ) takes place with the aid of said first area of the integrated optical component ( 6 ), wherein the optical system comprises a mirror in order to provide a reflection, so that the focal point of the light refracted in the second area of the integrated optical component lies at a distance to a focal point of the light refracted in the first area of the integrated optical component, and wherein the transmitter (