Patent ID: 6091905
Filing Date: 2000-07-18
Classification: G01C,G01S,G02B

Abstract:
Apparatus for creating an image indicating distances to objects in a scene, comprising:a modulated source of radiation, which directs radiation toward a scene, such that a portion of the radiation from the source is reflected from the scene and reaches the apparatus;telecentric optics which receive and collimate radiation reflected from the scene;a modulator which modulates the collimated radiation, such that a part of the portion of the radiation which reaches the apparatus is passed by the modulator, the part being dependent on the distance of respective portions of the scene from the apparatus;a detector which detects an image formed from the modulated collimated radiation; anda processor which forms an image having an intensity value distribution indicative of the distance of objects from the apparatus, responsive to the intensity distribution of the detected image.