# US 11,079,477 B2 · Optical scanning system

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- Number: US 11,079,477 B2
- Document ID: US11079477B2
- Status: Granted
- Kind: B2
- Application number: 16/498,124
- Filed: 2018-03-28
- Published: 2020-01-23
- Granted: 2021-08-03
- Earliest claimed: 2017-03-31
- Assignees: Robert Bosch GmbH
- Applicants: Robert Bosch GmbH
- Inventors: Jan Sparbert; Siegwart Bogatscher; Juergen Hasselbach; Remigius Has
- Web page: https://patentgrep.com/patent/US11079477B2

## CPC

- G01S 7/4817: {relating to scanning}
- G01S 7/4812: {transmitted and received beams following a coaxial path}
- G02B 26/0875: {by means of one or more refracting elements}
- G02B 26/10: Scanning systems
- G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

An optical scanning system is described, including a rotor that is set up to rotate about an axis of rotation during a scanning process, an optical lens that is situated on the rotor in such a way that the lens is situated on the axis of rotation, an optical transmit unit that is situated on the rotor and is set up to send out a scanning beam in the direction of an optical axis of the lens, and an optical receive unit that is situated on the rotor and includes a detector that is set up to receive a reflected scanning beam, the detector being situated such that the reflected scanning beam is focused onto the detector by the lens.

## Claims

### Claim 1

An optical scanning system, comprising:
a rotor configured to rotate about an axis of rotation during a scanning process;
an optical lens situated on the rotor in such a way that the lens is situated on the axis of rotation;
an optical transmit unit situated on the rotor and configured to send out a scanning beam in a direction of an optical axis of the lens; and
an optical receive unit situated on the rotor and including a detector that is configured to receive a reflected scanning beam, the detector being situated such that the reflected scanning beam is focused onto the detector by the lens.

### Claim 2 (depends on 1)

The optical scanning system as recited in claim 1, wherein a center of gravity of the lens is situated on the axis of rotation.

### Claim 3 (depends on 1)

The optical scanning system as recited in claim 1, wherein during a rotation about the axis of rotation, an envelope surface is defined by an outer circumference of the lens, and the optical transmit unit and the optical receive unit are situated on the rotor in such a way that a region of the optical transmit unit and/or of the optical receive unit, is situated on or inside the envelope surface.

### Claim 4 (depends on 1)

The optical scanning system as recited in claim 1, wherein the optical axis of the lens is perpendicular to the axis of rotation.

### Claim 5 (depends on 1)

The optical scanning system as recited in claim 1, wherein the optical receive unit includes a first mirror, the first mirror being situated such that after running through the lens, the reflected scanning beam is deflected onto the detector by the first mirror.

### Claim 6 (depends on 5)

The optical scanning system as recited in claim 5, wherein the first mirror has a focusing surface the focusing surface being a vaulted surface.

### Claim 7 (depends on 1)

The optical scanning system as recited in claim 1, wherein the optical transmit unit includes an optical emitter and a second mirror, the second mirror being situated such that the scanning beam sent out by the optical emitter is deflected in the direction of the optical axis of the lens by the second mirror.

### Claim 8 (depends on 1)

The optical scanning system as recited in claim 1, wherein the optical transmit unit includes a collimation lens.

### Claim 9 (depends on 1)

The optical scanning system as recited in claim 1, wherein the optical receive unit and/or the optical transmit unit includes an optical filter.

### Claim 10 (depends on 1)

The optical scanning system as recited in claim 1, wherein the optical scanning system is a coaxial macroscanner.