Scanning system and transmitting and receiving device for a scanning system

US11619711B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Annemarie Holleczek · Stuttgart, DE
• Benjamin Schmidt · Stuttgart, DE
• Mirko Hattass · Stuttgart, DE
• Remigius Has · Grafenau, DE

Key dates

• Filing date: Aug 3, 2018
• Grant date: Apr 4, 2023
• Expiry date: Jan 15, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S17/89
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A scanning-system including transmit/receive paths, a transmitter, a receiver and a rotating-scanning-device. The transmitter emits radiation which propagates along an optical-axis on the transmit-path. The radiation from the target-object is detected by the receiver on the receive-path. The rotating-scanning-device includes an optical-system and a rotating-deflection-unit, which deflects the radiation of the transmit/receive paths. The optical-system includes a first-focusing-unit and a rotating-second-focusing-unit. The movements of the rotating-deflection-unit and the rotating-second-focusing-unit occur synchronously to ensure an alignment of the deflected radiation with the second-focusing-unit. The first-focusing-unit reproduces the radiation emitted by the transmitter on the rotating-deflection-unit so that the beam-diameter on the rotating-deflection-unit is reduced. The rotating-deflection-unit deflects the radiation onto the rotating-second-focusing-unit and the rotating-second-focusing-unit collimates the radiation toward the target-object. The rotating-second-focusing-unit reproduces the radiation from the target-object on the rotating-deflection-unit so that the beam-di…